Klamath Falls 2 SSW Weather Records (USC00354506)
Record envelope, standing records and threshold days for Klamath Falls 2 SSW (USC00354506), Oregon, United States, with 115 years of record.
Key Facts for Klamath Falls 2 SSW
- Klamath Falls 2 SSW (USC00354506) is a weather station in Oregon, United States at 42.20 latitude and -121.78 longitude, 1,249 m (4,098 ft) above sea level.
- The station reports from 1887 to 2001, 115 years of record.
- 1,464 records set at Klamath Falls 2 SSW still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Klamath Falls 2 SSW set a daily record precipitation of 19.6 mm (0.8 in) on 17 May 2001.
About the Station
- Location: Oregon, United States, 42.20 latitude, -121.78 longitude.
- Elevation: 1,249 m (4,098 ft).
- Period of record: 1887 to 2001, 115 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 25.6 C (78.1 F) | -31.1 C (-24.0 F) | n/a | n/a |
| Feb | 20.6 C (69.1 F) | -23.3 C (-9.9 F) | n/a | n/a |
| Mar | 25.0 C (77.0 F) | -20.6 C (-5.1 F) | n/a | n/a |
| Apr | 30.6 C (87.1 F) | -12.2 C (10.0 F) | n/a | n/a |
| May | 36.7 C (98.1 F) | -8.3 C (17.1 F) | n/a | n/a |
| Jun | 37.8 C (100.0 F) | -4.4 C (24.1 F) | n/a | n/a |
| Jul | 39.4 C (102.9 F) | -5.6 C (21.9 F) | n/a | n/a |
| Aug | 40.0 C (104.0 F) | -2.2 C (28.0 F) | n/a | n/a |
| Sep | 39.4 C (102.9 F) | -6.7 C (19.9 F) | n/a | n/a |
| Oct | 33.3 C (91.9 F) | -11.7 C (10.9 F) | n/a | n/a |
| Nov | 23.3 C (73.9 F) | -17.2 C (1.0 F) | n/a | n/a |
| Dec | 17.2 C (63.0 F) | -27.2 C (-17.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1887 | 14 |
| 1888 | 22 |
| 1889 | 18 |
| 1894 | 19 |
| 1895 | 15 |
| 1898 | 16 |
| 1899 | 13 |
| 1900 | 11 |
| 1901 | 11 |
| 1902 | 34 |
| 1903 | 13 |
| 1904 | 19 |
| 1905 | 19 |
| 1906 | 20 |
| 1907 | 19 |
| 1908 | 13 |
| 1909 | 15 |
| 1910 | 12 |
| 1911 | 21 |
| 1912 | 19 |
| 1913 | 23 |
| 1914 | 5 |
| 1915 | 8 |
| 1916 | 13 |
| 1917 | 39 |
| 1918 | 10 |
| 1919 | 19 |
| 1920 | 18 |
| 1921 | 5 |
| 1922 | 15 |
| 1923 | 4 |
| 1924 | 26 |
| 1925 | 9 |
| 1926 | 12 |
| 1927 | 19 |
| 1928 | 8 |
| 1929 | 15 |
| 1930 | 9 |
| 1931 | 8 |
| 1932 | 15 |
| 1933 | 18 |
| 1934 | 30 |
| 1935 | 21 |
| 1936 | 12 |
| 1937 | 9 |
| 1938 | 11 |
| 1939 | 12 |
| 1940 | 14 |
| 1941 | 6 |
| 1942 | 5 |
| 1943 | 1 |
| 1944 | 4 |
| 1945 | 16 |
| 1946 | 3 |
| 1947 | 5 |
| 1948 | 6 |
| 1949 | 13 |
| 1950 | 18 |
| 1951 | 11 |
| 1952 | 11 |
| 1953 | 5 |
| 1954 | 9 |
| 1955 | 20 |
| 1956 | 8 |
| 1957 | 9 |
| 1958 | 16 |
| 1959 | 20 |
| 1960 | 20 |
| 1961 | 15 |
| 1962 | 18 |
| 1963 | 18 |
| 1964 | 12 |
| 1965 | 3 |
| 1966 | 12 |
| 1967 | 9 |
| 1968 | 14 |
| 1969 | 6 |
| 1970 | 11 |
| 1971 | 14 |
| 1972 | 18 |
| 1973 | 8 |
| 1974 | 14 |
| 1975 | 12 |
| 1976 | 9 |
| 1977 | 11 |
| 1978 | 4 |
| 1979 | 5 |
| 1980 | 7 |
| 1981 | 15 |
| 1982 | 6 |
| 1983 | 10 |
| 1984 | 7 |
| 1985 | 23 |
| 1986 | 29 |
| 1987 | 26 |
| 1988 | 18 |
| 1989 | 11 |
| 1990 | 10 |
| 1991 | 14 |
| 1992 | 32 |
| 1993 | 11 |
| 1994 | 17 |
| 1995 | 19 |
| 1996 | 13 |
| 1997 | 4 |
| 1998 | 6 |
| 1999 | 6 |
| 2000 | 8 |
| 2001 | 3 |
All-Time Record Progression
3 new records| Date | Kind | Detail |
|---|---|---|
| 1964-12-22 | Record daily precipitation | Record daily precipitation 65.5 mm (2.6 in) |
| 1972-08-07 | Record high maximum temperature | Record high maximum temperature 40.0 C (104.0 F) |
| 1981-08-08 | Record high minimum temperature | Record high minimum temperature 22.8 C (73.0 F) |
Wettest Day of Each Month
Dec: 65.5 mm (2.6 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 61.0 mm (2.4 in) | 2 January 1901 |
| Feb | 43.2 mm (1.7 in) | 15 February 1904 |
| Mar | 40.6 mm (1.6 in) | 26 March 1904 |
| Apr | 29.2 mm (1.1 in) | 18 April 2000 |
| May | 26.7 mm (1.1 in) | 30 May 1945 |
| Jun | 36.8 mm (1.4 in) | 1 June 1925 |
| Jul | 34.8 mm (1.4 in) | 5 July 1948 |
| Aug | 51.1 mm (2.0 in) | 18 August 1941 |
| Sep | 59.4 mm (2.3 in) | 27 September 1957 |
| Oct | 44.5 mm (1.8 in) | 14 October 1908 |
| Nov | 42.7 mm (1.7 in) | 13 November 1957 |
| Dec | 65.5 mm (2.6 in) | 22 December 1964 |
Period of Record Coverage
1887 to 2001| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1887 | 212 | 58% | No |
| 1888 | 218 | 60% | No |
| 1889 | 243 | 67% | No |
| 1894 | 214 | 59% | No |
| 1895 | 214 | 59% | No |
| 1897 | 26 | 7% | No |
| 1898 | 270 | 74% | No |
| 1899 | 264 | 72% | No |
| 1900 | 241 | 66% | No |
| 1901 | 359 | 98% | Yes |
| 1902 | 360 | 99% | Yes |
| 1903 | 212 | 58% | No |
| 1904 | 233 | 64% | No |
| 1905 | 353 | 97% | Yes |
| 1906 | 273 | 75% | No |
| 1907 | 332 | 91% | Yes |
| 1908 | 352 | 96% | Yes |
| 1909 | 360 | 99% | Yes |
| 1910 | 360 | 99% | Yes |
| 1911 | 363 | 99% | Yes |
| 1912 | 366 | 100% | Yes |
| 1913 | 363 | 99% | Yes |
| 1914 | 359 | 98% | Yes |
| 1915 | 362 | 99% | Yes |
| 1916 | 364 | 99% | Yes |
| 1917 | 364 | 100% | Yes |
| 1918 | 363 | 99% | Yes |
| 1919 | 365 | 100% | Yes |
| 1920 | 359 | 98% | Yes |
| 1921 | 354 | 97% | Yes |
| 1922 | 362 | 99% | Yes |
| 1923 | 364 | 100% | Yes |
| 1924 | 366 | 100% | Yes |
| 1925 | 365 | 100% | Yes |
| 1926 | 365 | 100% | Yes |
| 1927 | 355 | 97% | Yes |
| 1928 | 364 | 99% | Yes |
| 1929 | 361 | 99% | Yes |
| 1930 | 363 | 99% | Yes |
| 1931 | 364 | 100% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 365 | 100% | Yes |
| 1934 | 364 | 100% | Yes |
| 1935 | 364 | 100% | Yes |
| 1936 | 366 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 364 | 100% | Yes |
| 1947 | 364 | 100% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 364 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 358 | 98% | Yes |
| 1953 | 364 | 100% | Yes |
| 1954 | 363 | 99% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 364 | 99% | Yes |
| 1957 | 361 | 99% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 364 | 100% | Yes |
| 1960 | 364 | 99% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 364 | 100% | Yes |
| 1967 | 364 | 100% | Yes |
| 1968 | 358 | 98% | Yes |
| 1969 | 364 | 100% | Yes |
| 1970 | 364 | 100% | Yes |
| 1971 | 362 | 99% | Yes |
| 1972 | 363 | 99% | Yes |
| 1973 | 359 | 98% | Yes |
| 1974 | 360 | 99% | Yes |
| 1975 | 359 | 98% | Yes |
| 1976 | 361 | 99% | Yes |
| 1977 | 362 | 99% | Yes |
| 1978 | 353 | 97% | Yes |
| 1979 | 364 | 100% | Yes |
| 1980 | 363 | 99% | Yes |
| 1981 | 362 | 99% | Yes |
| 1982 | 328 | 90% | No |
| 1983 | 351 | 96% | Yes |
| 1984 | 360 | 98% | Yes |
| 1985 | 358 | 98% | Yes |
| 1986 | 360 | 99% | Yes |
| 1987 | 354 | 97% | Yes |
| 1988 | 356 | 97% | Yes |
| 1989 | 324 | 89% | No |
| 1990 | 351 | 96% | Yes |
| 1991 | 358 | 98% | Yes |
| 1992 | 334 | 91% | Yes |
| 1993 | 336 | 92% | Yes |
| 1994 | 354 | 97% | Yes |
| 1995 | 345 | 95% | Yes |
| 1996 | 363 | 99% | Yes |
| 1997 | 360 | 99% | Yes |
| 1998 | 265 | 73% | No |
| 1999 | 178 | 49% | No |
| 2000 | 168 | 46% | No |
| 2001 | 63 | 17% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 17 May 2001 | Klamath Falls 2 SSW, US | daily rain | 19.6 mm (0.8 in) | 2.6 mm (0.10 in) | 80 years | 20 of 100 (Routine) |
| 17 May 2001 | Klamath Falls 2 SSW, US | daily low min | -6.1 C (21.0 F) | 2.2 C (4.0 F) | 36 years | 25 of 100 (Routine) |
| 17 May 2001 | Klamath Falls 2 SSW, US | daily high max | 32.8 C (91.0 F) | 0.6 C (1.1 F) | 28 years | 19 of 100 (Routine) |
| 30 April 2001 | Klamath Falls 2 SSW, US | daily low min (Tie) | -5.6 C (21.9 F) | tie | 39 years | 5 of 100 (Routine) |
| 9 April 2001 | Klamath Falls 2 SSW, US | daily low min (Tie) | -7.2 C (19.0 F) | tie | 10 years | 3 of 100 (Routine) |
| 23 March 2001 | Klamath Falls 2 SSW, US | daily high max (Tie) | 21.7 C (71.1 F) | tie | 40 years | 5 of 100 (Routine) |
| 7 March 2001 | Klamath Falls 2 SSW, US | daily high max (Tie) | 19.4 C (66.9 F) | tie | 96 years | 9 of 100 (Routine) |
| 5 January 2001 | Klamath Falls 2 SSW, US | daily high max | 13.9 C (57.0 F) | 1.7 C (3.1 F) | 87 years | 39 of 100 (Notable) |
| 14 November 2000 | Klamath Falls 2 SSW, US | daily rain | 10.9 mm (0.4 in) | 0.5 mm (0.02 in) | 73 years | 20 of 100 (Routine) |
| 14 November 2000 | Klamath Falls 2 SSW, US | daily snow depth (Tie) | 12.7 cm (5.0 in) | tie | 45 years | 5 of 100 (Routine) |
| 15 September 2000 | Klamath Falls 2 SSW, US | daily low min | -1.7 C (28.9 F) | 0.6 C (1.1 F) | 73 years | 32 of 100 (Routine) |
| 7 August 2000 | Klamath Falls 2 SSW, US | daily low min (Tie) | 2.8 C (37.0 F) | tie | 25 years | 4 of 100 (Routine) |
| 3 July 2000 | Klamath Falls 2 SSW, US | monthly low min | -5.6 C (21.9 F) | 3.4 C (6.1 F) | 97 years | 57 of 100 (Notable) |
| 29 June 2000 | Klamath Falls 2 SSW, US | daily high min (Tie) | 16.7 C (62.1 F) | tie | 28 years | 4 of 100 (Routine) |
| 1 June 2000 | Klamath Falls 2 SSW, US | daily low min (Tie) | -2.2 C (28.0 F) | tie | 104 years | 10 of 100 (Routine) |
| 22 May 2000 | Klamath Falls 2 SSW, US | daily high max | 31.7 C (89.1 F) | 0.6 C (1.1 F) | 96 years | 39 of 100 (Notable) |
| 27 April 2000 | Klamath Falls 2 SSW, US | daily low min | -9.4 C (15.1 F) | 2.2 C (4.0 F) | 45 years | 29 of 100 (Routine) |
| 18 April 2000 | Klamath Falls 2 SSW, US | monthly rain | 29.2 mm (1.1 in) | 5.8 mm (0.23 in) | 48 years | 50 of 100 (Notable) |
| 17 April 2000 | Klamath Falls 2 SSW, US | daily high min | 8.9 C (48.0 F) | 0.6 C (1.1 F) | 74 years | 33 of 100 (Routine) |
| 4 April 2000 | Klamath Falls 2 SSW, US | daily high max | 27.2 C (81.0 F) | 3.9 C (7.0 F) | 5 years | 18 of 100 (Routine) |
Climate Trend
90 complete years, 1901 to 1997| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1901 | 8.6 C | -0.35 C |
| 1902 | 9.1 C | +0.16 C |
| 1905 | 9.4 C | +0.51 C |
| 1908 | 8.4 C | -0.50 C |
| 1909 | 7.8 C | -1.09 C |
| 1910 | 8.3 C | -0.60 C |
| 1911 | 7.1 C | -1.80 C |
| 1912 | 7.5 C | -1.39 C |
| 1913 | 7.1 C | -1.81 C |
| 1914 | 8.8 C | -0.14 C |
| 1915 | 9.1 C | +0.17 C |
| 1916 | 8.0 C | -0.92 C |
| 1917 | 7.9 C | -0.96 C |
| 1918 | 9.1 C | +0.23 C |
| 1919 | 8.6 C | -0.33 C |
| 1920 | 8.5 C | -0.45 C |
| 1921 | 9.4 C | +0.48 C |
| 1922 | 7.9 C | -0.97 C |
| 1923 | 8.1 C | -0.78 C |
| 1924 | 9.0 C | +0.06 C |
| 1925 | 9.2 C | +0.31 C |
| 1926 | 10.2 C | +1.25 C |
| 1927 | 8.0 C | -0.92 C |
| 1928 | 8.6 C | -0.27 C |
| 1929 | 8.4 C | -0.54 C |
| 1930 | 8.5 C | -0.44 C |
| 1931 | 9.6 C | +0.70 C |
| 1932 | 8.5 C | -0.41 C |
| 1933 | 8.6 C | -0.33 C |
| 1934 | 10.9 C | +2.04 C |
| 1935 | 8.1 C | -0.79 C |
| 1936 | 10.0 C | +1.12 C |
| 1937 | 8.7 C | -0.25 C |
| 1938 | 8.7 C | -0.23 C |
| 1939 | 10.0 C | +1.12 C |
| 1940 | 10.5 C | +1.61 C |
| 1941 | 9.7 C | +0.79 C |
| 1942 | 9.1 C | +0.21 C |
| 1943 | 9.2 C | +0.26 C |
| 1944 | 8.6 C | -0.29 C |
| 1945 | 9.4 C | +0.46 C |
| 1946 | 8.8 C | -0.06 C |
| 1947 | 9.6 C | +0.68 C |
| 1948 | 7.9 C | -0.99 C |
| 1949 | 8.6 C | -0.27 C |
| 1950 | 9.5 C | +0.58 C |
| 1951 | 9.5 C | +0.63 C |
| 1953 | 8.9 C | 0.00 C |
| 1954 | 8.9 C | -0.02 C |
| 1955 | 8.1 C | -0.82 C |
| 1956 | 8.7 C | -0.18 C |
| 1957 | 8.4 C | -0.46 C |
| 1958 | 9.3 C | +0.41 C |
| 1959 | 8.7 C | -0.22 C |
| 1960 | 8.9 C | +0.03 C |
| 1961 | 8.9 C | +0.01 C |
| 1962 | 8.1 C | -0.76 C |
| 1963 | 8.6 C | -0.33 C |
| 1964 | 7.5 C | -1.37 C |
| 1965 | 8.5 C | -0.42 C |
| 1966 | 8.9 C | +0.04 C |
| 1967 | 8.7 C | -0.19 C |
| 1968 | 8.9 C | -0.03 C |
| 1969 | 8.6 C | -0.33 C |
| 1970 | 8.9 C | -0.04 C |
| 1971 | 8.2 C | -0.75 C |
| 1972 | 8.8 C | -0.09 C |
| 1973 | 9.3 C | +0.35 C |
| 1974 | 9.3 C | +0.38 C |
| 1975 | 8.2 C | -0.73 C |
| 1976 | 8.8 C | -0.11 C |
| 1977 | 8.6 C | -0.26 C |
| 1978 | 8.9 C | -0.04 C |
| 1979 | 9.1 C | +0.21 C |
| 1980 | 9.0 C | +0.14 C |
| 1981 | 9.8 C | +0.92 C |
| 1983 | 8.8 C | -0.09 C |
| 1984 | 8.5 C | -0.40 C |
| 1985 | 8.3 C | -0.64 C |
| 1986 | 10.1 C | +1.24 C |
| 1987 | 10.0 C | +1.13 C |
| 1988 | 9.6 C | +0.67 C |
| 1990 | 9.1 C | +0.20 C |
| 1991 | 9.8 C | +0.85 C |
| 1992 | 11.1 C | +2.23 C |
| 1993 | 8.3 C | -0.63 C |
| 1994 | 9.7 C | +0.81 C |
| 1995 | 10.4 C | +1.53 C |
| 1996 | 10.2 C | +1.34 C |
| 1997 | 10.0 C | +1.14 C |
The annual mean temperature here has risen by 0.10 C (0.05 to 0.16) per decade over 1901 to 1997. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 90 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.10 C (0.05 to 0.16) per decade | 0.2 F (0.1 to 0.3) per decade | 1901 to 1997 | 90 | Rise |
| Mean daily maximum | 0.12 C (0.05 to 0.20) per decade | 0.2 F (0.1 to 0.4) per decade | 1901 to 1997 | 90 | Rise |
| Mean daily minimum | 0.08 C (0.02 to 0.15) per decade | 0.15 F (0.03 to 0.27) per decade | 1901 to 1997 | 90 | Rise |
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1887 to 2001| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 40.0 C (104.0 F) | 1972 | 36.1 C (97.0 F) | 110 |
| Coldest night (TNn) | -31.1 C (-24.0 F) | 1888 | -17.2 C (1.0 F) | 110 |
| Wettest day (Rx1day) | 65.5 mm (2.6 in) | 1964 | 26.6 mm (1.0 in) | 110 |
| Wettest five days (Rx5day) | 162.0 mm (6.4 in) | 1964 | 49.3 mm (1.9 in) | 110 |
| Longest dry spell (CDD) | 139 days | 1951 | 55 days | 110 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1887 | 35.0 C (95.0 F) |
| 1888 | 32.8 C (91.0 F) |
| 1889 | 32.2 C (90.0 F) |
| 1894 | 35.6 C (96.1 F) |
| 1895 | 36.1 C (97.0 F) |
| 1897 | 9.4 C (48.9 F) |
| 1898 | 37.8 C (100.0 F) |
| 1899 | 36.7 C (98.1 F) |
| 1900 | 32.8 C (91.0 F) |
| 1901 | 37.2 C (99.0 F) |
| 1902 | 39.4 C (102.9 F) |
| 1903 | 36.7 C (98.1 F) |
| 1904 | 33.9 C (93.0 F) |
| 1905 | 39.4 C (102.9 F) |
| 1906 | 38.3 C (100.9 F) |
| 1907 | 33.9 C (93.0 F) |
| 1908 | 37.2 C (99.0 F) |
| 1909 | 32.8 C (91.0 F) |
| 1910 | 34.4 C (93.9 F) |
| 1911 | 38.3 C (100.9 F) |
| 1912 | 33.9 C (93.0 F) |
| 1913 | 33.3 C (91.9 F) |
| 1914 | 35.0 C (95.0 F) |
| 1915 | 37.2 C (99.0 F) |
| 1916 | 36.7 C (98.1 F) |
| 1917 | 37.8 C (100.0 F) |
| 1918 | 37.8 C (100.0 F) |
| 1919 | 36.7 C (98.1 F) |
| 1920 | 37.8 C (100.0 F) |
| 1921 | 35.6 C (96.1 F) |
| 1922 | 37.8 C (100.0 F) |
| 1923 | 34.4 C (93.9 F) |
| 1924 | 36.7 C (98.1 F) |
| 1925 | 35.6 C (96.1 F) |
| 1926 | 35.6 C (96.1 F) |
| 1927 | 33.9 C (93.0 F) |
| 1928 | 38.9 C (102.0 F) |
| 1929 | 36.7 C (98.1 F) |
| 1930 | 37.2 C (99.0 F) |
| 1931 | 37.8 C (100.0 F) |
| 1932 | 36.1 C (97.0 F) |
| 1933 | 38.9 C (102.0 F) |
| 1934 | 37.2 C (99.0 F) |
| 1935 | 36.1 C (97.0 F) |
| 1936 | 37.8 C (100.0 F) |
| 1937 | 36.7 C (98.1 F) |
| 1938 | 37.2 C (99.0 F) |
| 1939 | 38.3 C (100.9 F) |
| 1940 | 36.1 C (97.0 F) |
| 1941 | 34.4 C (93.9 F) |
| 1942 | 37.2 C (99.0 F) |
| 1943 | 33.9 C (93.0 F) |
| 1944 | 35.0 C (95.0 F) |
| 1945 | 35.0 C (95.0 F) |
| 1946 | 37.8 C (100.0 F) |
| 1947 | 32.8 C (91.0 F) |
| 1948 | 35.6 C (96.1 F) |
| 1949 | 33.9 C (93.0 F) |
| 1950 | 35.6 C (96.1 F) |
| 1951 | 35.0 C (95.0 F) |
| 1952 | 33.3 C (91.9 F) |
| 1953 | 32.8 C (91.0 F) |
| 1954 | 33.9 C (93.0 F) |
| 1955 | 35.6 C (96.1 F) |
| 1956 | 34.4 C (93.9 F) |
| 1957 | 33.3 C (91.9 F) |
| 1958 | 35.0 C (95.0 F) |
| 1959 | 35.6 C (96.1 F) |
| 1960 | 36.7 C (98.1 F) |
| 1961 | 36.7 C (98.1 F) |
| 1962 | 33.3 C (91.9 F) |
| 1963 | 32.2 C (90.0 F) |
| 1964 | 35.6 C (96.1 F) |
| 1965 | 32.8 C (91.0 F) |
| 1966 | 33.9 C (93.0 F) |
| 1967 | 35.0 C (95.0 F) |
| 1968 | 35.6 C (96.1 F) |
| 1969 | 35.0 C (95.0 F) |
| 1970 | 35.0 C (95.0 F) |
| 1971 | 37.2 C (99.0 F) |
| 1972 | 40.0 C (104.0 F) |
| 1973 | 36.1 C (97.0 F) |
| 1974 | 35.0 C (95.0 F) |
| 1975 | 36.7 C (98.1 F) |
| 1976 | 34.4 C (93.9 F) |
| 1977 | 36.1 C (97.0 F) |
| 1978 | 37.2 C (99.0 F) |
| 1979 | 36.7 C (98.1 F) |
| 1980 | 36.7 C (98.1 F) |
| 1981 | 38.9 C (102.0 F) |
| 1982 | 35.0 C (95.0 F) |
| 1983 | 35.6 C (96.1 F) |
| 1984 | 36.7 C (98.1 F) |
| 1985 | 37.2 C (99.0 F) |
| 1986 | 36.7 C (98.1 F) |
| 1987 | 38.3 C (100.9 F) |
| 1988 | 38.9 C (102.0 F) |
| 1989 | 33.3 C (91.9 F) |
| 1990 | 37.8 C (100.0 F) |
| 1991 | 38.3 C (100.9 F) |
| 1992 | 39.4 C (102.9 F) |
| 1993 | 36.1 C (97.0 F) |
| 1994 | 37.8 C (100.0 F) |
| 1995 | 36.7 C (98.1 F) |
| 1996 | 37.8 C (100.0 F) |
| 1997 | 35.6 C (96.1 F) |
| 1998 | 38.3 C (100.9 F) |
| 1999 | 37.8 C (100.0 F) |
| 2000 | 36.1 C (97.0 F) |
| 2001 | 32.8 C (91.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1887 | -13.9 C (7.0 F) |
| 1888 | -31.1 C (-24.0 F) |
| 1889 | -17.8 C (0.0 F) |
| 1894 | -13.9 C (7.0 F) |
| 1895 | -11.7 C (10.9 F) |
| 1897 | -10.6 C (12.9 F) |
| 1898 | -17.8 C (0.0 F) |
| 1899 | -17.8 C (0.0 F) |
| 1900 | -11.7 C (10.9 F) |
| 1901 | -21.1 C (-6.0 F) |
| 1902 | -20.6 C (-5.1 F) |
| 1903 | -18.3 C (-0.9 F) |
| 1904 | -17.8 C (0.0 F) |
| 1905 | -17.8 C (0.0 F) |
| 1906 | -17.8 C (0.0 F) |
| 1907 | -12.8 C (9.0 F) |
| 1908 | -18.3 C (-0.9 F) |
| 1909 | -17.2 C (1.0 F) |
| 1910 | -19.4 C (-2.9 F) |
| 1911 | -21.1 C (-6.0 F) |
| 1912 | -25.6 C (-14.1 F) |
| 1913 | -21.1 C (-6.0 F) |
| 1914 | -14.4 C (6.1 F) |
| 1915 | -17.8 C (0.0 F) |
| 1916 | -18.9 C (-2.0 F) |
| 1917 | -25.0 C (-13.0 F) |
| 1918 | -18.9 C (-2.0 F) |
| 1919 | -26.7 C (-16.1 F) |
| 1920 | -11.1 C (12.0 F) |
| 1921 | -16.1 C (3.0 F) |
| 1922 | -22.8 C (-9.0 F) |
| 1923 | -21.1 C (-6.0 F) |
| 1924 | -21.1 C (-6.0 F) |
| 1925 | -12.2 C (10.0 F) |
| 1926 | -16.7 C (1.9 F) |
| 1927 | -17.8 C (0.0 F) |
| 1928 | -16.1 C (3.0 F) |
| 1929 | -17.8 C (0.0 F) |
| 1930 | -21.7 C (-7.1 F) |
| 1931 | -17.8 C (0.0 F) |
| 1932 | -23.3 C (-9.9 F) |
| 1933 | -23.3 C (-9.9 F) |
| 1934 | -8.9 C (16.0 F) |
| 1935 | -18.9 C (-2.0 F) |
| 1936 | -11.7 C (10.9 F) |
| 1937 | -25.0 C (-13.0 F) |
| 1938 | -17.8 C (0.0 F) |
| 1939 | -15.6 C (3.9 F) |
| 1940 | -12.2 C (10.0 F) |
| 1941 | -11.1 C (12.0 F) |
| 1942 | -18.9 C (-2.0 F) |
| 1943 | -16.7 C (1.9 F) |
| 1944 | -15.6 C (3.9 F) |
| 1945 | -14.4 C (6.1 F) |
| 1946 | -15.0 C (5.0 F) |
| 1947 | -15.0 C (5.0 F) |
| 1948 | -17.2 C (1.0 F) |
| 1949 | -21.7 C (-7.1 F) |
| 1950 | -24.4 C (-11.9 F) |
| 1951 | -16.1 C (3.0 F) |
| 1952 | -18.3 C (-0.9 F) |
| 1953 | -10.6 C (12.9 F) |
| 1954 | -16.7 C (1.9 F) |
| 1955 | -15.6 C (3.9 F) |
| 1956 | -17.2 C (1.0 F) |
| 1957 | -17.8 C (0.0 F) |
| 1958 | -13.3 C (8.1 F) |
| 1959 | -15.6 C (3.9 F) |
| 1960 | -17.2 C (1.0 F) |
| 1961 | -16.1 C (3.0 F) |
| 1962 | -25.6 C (-14.1 F) |
| 1963 | -17.8 C (0.0 F) |
| 1964 | -14.4 C (6.1 F) |
| 1965 | -16.7 C (1.9 F) |
| 1966 | -13.9 C (7.0 F) |
| 1967 | -21.7 C (-7.1 F) |
| 1968 | -17.2 C (1.0 F) |
| 1969 | -23.9 C (-11.0 F) |
| 1970 | -16.1 C (3.0 F) |
| 1971 | -16.7 C (1.9 F) |
| 1972 | -27.2 C (-17.0 F) |
| 1973 | -16.1 C (3.0 F) |
| 1974 | -18.9 C (-2.0 F) |
| 1975 | -17.2 C (1.0 F) |
| 1976 | -13.3 C (8.1 F) |
| 1977 | -22.2 C (-8.0 F) |
| 1978 | -18.3 C (-0.9 F) |
| 1979 | -15.0 C (5.0 F) |
| 1980 | -15.0 C (5.0 F) |
| 1981 | -10.0 C (14.0 F) |
| 1982 | -18.9 C (-2.0 F) |
| 1983 | -19.4 C (-2.9 F) |
| 1984 | -18.9 C (-2.0 F) |
| 1985 | -17.2 C (1.0 F) |
| 1986 | -10.6 C (12.9 F) |
| 1987 | -15.6 C (3.9 F) |
| 1988 | -21.1 C (-6.0 F) |
| 1989 | -23.3 C (-9.9 F) |
| 1990 | -26.7 C (-16.1 F) |
| 1991 | -15.6 C (3.9 F) |
| 1992 | -17.2 C (1.0 F) |
| 1993 | -22.8 C (-9.0 F) |
| 1994 | -15.6 C (3.9 F) |
| 1995 | -10.6 C (12.9 F) |
| 1996 | -14.4 C (6.1 F) |
| 1997 | -15.0 C (5.0 F) |
| 1998 | -22.2 C (-8.0 F) |
| 1999 | -15.0 C (5.0 F) |
| 2000 | -11.1 C (12.0 F) |
| 2001 | -12.2 C (10.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1887 | 13.0 mm (0.5 in) |
| 1888 | 27.9 mm (1.1 in) |
| 1889 | 23.4 mm (0.9 in) |
| 1894 | 24.4 mm (1.0 in) |
| 1895 | 15.2 mm (0.6 in) |
| 1897 | 12.7 mm (0.5 in) |
| 1898 | 28.4 mm (1.1 in) |
| 1899 | 28.4 mm (1.1 in) |
| 1900 | 15.2 mm (0.6 in) |
| 1901 | 61.0 mm (2.4 in) |
| 1902 | 38.1 mm (1.5 in) |
| 1903 | 33.3 mm (1.3 in) |
| 1904 | 43.2 mm (1.7 in) |
| 1905 | 23.1 mm (0.9 in) |
| 1906 | 49.5 mm (1.9 in) |
| 1907 | 30.5 mm (1.2 in) |
| 1908 | 44.5 mm (1.8 in) |
| 1909 | 23.6 mm (0.9 in) |
| 1910 | 36.8 mm (1.4 in) |
| 1911 | 20.6 mm (0.8 in) |
| 1912 | 34.0 mm (1.3 in) |
| 1913 | 38.1 mm (1.5 in) |
| 1914 | 26.7 mm (1.1 in) |
| 1915 | 20.3 mm (0.8 in) |
| 1916 | 22.9 mm (0.9 in) |
| 1917 | 24.9 mm (1.0 in) |
| 1918 | 22.6 mm (0.9 in) |
| 1919 | 15.7 mm (0.6 in) |
| 1920 | 25.1 mm (1.0 in) |
| 1921 | 24.9 mm (1.0 in) |
| 1922 | 18.3 mm (0.7 in) |
| 1923 | 18.3 mm (0.7 in) |
| 1924 | 38.4 mm (1.5 in) |
| 1925 | 36.8 mm (1.4 in) |
| 1926 | 39.6 mm (1.6 in) |
| 1927 | 27.7 mm (1.1 in) |
| 1928 | 31.0 mm (1.2 in) |
| 1929 | 33.5 mm (1.3 in) |
| 1930 | 31.8 mm (1.3 in) |
| 1931 | 25.9 mm (1.0 in) |
| 1932 | 25.7 mm (1.0 in) |
| 1933 | 24.9 mm (1.0 in) |
| 1934 | 14.0 mm (0.6 in) |
| 1935 | 22.9 mm (0.9 in) |
| 1936 | 29.2 mm (1.1 in) |
| 1937 | 37.6 mm (1.5 in) |
| 1938 | 20.8 mm (0.8 in) |
| 1939 | 55.9 mm (2.2 in) |
| 1940 | 24.9 mm (1.0 in) |
| 1941 | 51.1 mm (2.0 in) |
| 1942 | 19.3 mm (0.8 in) |
| 1943 | 38.9 mm (1.5 in) |
| 1944 | 15.0 mm (0.6 in) |
| 1945 | 26.7 mm (1.1 in) |
| 1946 | 32.0 mm (1.3 in) |
| 1947 | 16.8 mm (0.7 in) |
| 1948 | 34.8 mm (1.4 in) |
| 1949 | 16.0 mm (0.6 in) |
| 1950 | 38.6 mm (1.5 in) |
| 1951 | 30.0 mm (1.2 in) |
| 1952 | 40.4 mm (1.6 in) |
| 1953 | 31.8 mm (1.3 in) |
| 1954 | 15.5 mm (0.6 in) |
| 1955 | 25.4 mm (1.0 in) |
| 1956 | 33.5 mm (1.3 in) |
| 1957 | 59.4 mm (2.3 in) |
| 1958 | 25.7 mm (1.0 in) |
| 1959 | 34.0 mm (1.3 in) |
| 1960 | 31.8 mm (1.3 in) |
| 1961 | 34.0 mm (1.3 in) |
| 1962 | 42.9 mm (1.7 in) |
| 1963 | 19.3 mm (0.8 in) |
| 1964 | 65.5 mm (2.6 in) |
| 1965 | 29.2 mm (1.1 in) |
| 1966 | 31.8 mm (1.3 in) |
| 1967 | 19.8 mm (0.8 in) |
| 1968 | 16.5 mm (0.6 in) |
| 1969 | 34.0 mm (1.3 in) |
| 1970 | 20.8 mm (0.8 in) |
| 1971 | 23.6 mm (0.9 in) |
| 1972 | 43.9 mm (1.7 in) |
| 1973 | 20.8 mm (0.8 in) |
| 1974 | 18.8 mm (0.7 in) |
| 1975 | 21.3 mm (0.8 in) |
| 1976 | 18.8 mm (0.7 in) |
| 1977 | 27.7 mm (1.1 in) |
| 1978 | 20.6 mm (0.8 in) |
| 1979 | 29.0 mm (1.1 in) |
| 1980 | 24.1 mm (0.9 in) |
| 1981 | 29.2 mm (1.1 in) |
| 1982 | 24.6 mm (1.0 in) |
| 1983 | 18.5 mm (0.7 in) |
| 1984 | 24.6 mm (1.0 in) |
| 1985 | 16.3 mm (0.6 in) |
| 1986 | 29.0 mm (1.1 in) |
| 1987 | 29.0 mm (1.1 in) |
| 1988 | 28.2 mm (1.1 in) |
| 1989 | 22.4 mm (0.9 in) |
| 1990 | 31.2 mm (1.2 in) |
| 1991 | 15.0 mm (0.6 in) |
| 1992 | 22.1 mm (0.9 in) |
| 1993 | 21.1 mm (0.8 in) |
| 1994 | 16.0 mm (0.6 in) |
| 1995 | 31.2 mm (1.2 in) |
| 1996 | 26.4 mm (1.0 in) |
| 1997 | 40.1 mm (1.6 in) |
| 1998 | 23.4 mm (0.9 in) |
| 1999 | 28.4 mm (1.1 in) |
| 2000 | 41.7 mm (1.6 in) |
| 2001 | 19.6 mm (0.8 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1887 | 17.0 mm (0.7 in) |
| 1888 | 48.9 mm (1.9 in) |
| 1889 | 40.7 mm (1.6 in) |
| 1894 | 38.6 mm (1.5 in) |
| 1895 | 26.3 mm (1.0 in) |
| 1897 | 31.5 mm (1.2 in) |
| 1898 | 28.4 mm (1.1 in) |
| 1899 | 56.1 mm (2.2 in) |
| 1900 | 22.8 mm (0.9 in) |
| 1901 | 58.2 mm (2.3 in) |
| 1902 | 54.4 mm (2.1 in) |
| 1903 | 76.2 mm (3.0 in) |
| 1904 | 50.8 mm (2.0 in) |
| 1905 | 35.5 mm (1.4 in) |
| 1906 | 125.7 mm (4.9 in) |
| 1907 | 77.5 mm (3.1 in) |
| 1908 | 57.0 mm (2.2 in) |
| 1909 | 103.9 mm (4.1 in) |
| 1910 | 67.0 mm (2.6 in) |
| 1911 | 27.7 mm (1.1 in) |
| 1912 | 45.2 mm (1.8 in) |
| 1913 | 59.7 mm (2.4 in) |
| 1914 | 72.1 mm (2.8 in) |
| 1915 | 28.4 mm (1.1 in) |
| 1916 | 40.9 mm (1.6 in) |
| 1917 | 47.0 mm (1.9 in) |
| 1918 | 38.9 mm (1.5 in) |
| 1919 | 31.2 mm (1.2 in) |
| 1920 | 55.3 mm (2.2 in) |
| 1921 | 49.3 mm (1.9 in) |
| 1922 | 49.8 mm (2.0 in) |
| 1923 | 43.9 mm (1.7 in) |
| 1924 | 57.4 mm (2.3 in) |
| 1925 | 50.1 mm (2.0 in) |
| 1926 | 80.6 mm (3.2 in) |
| 1927 | 56.1 mm (2.2 in) |
| 1928 | 58.5 mm (2.3 in) |
| 1929 | 66.0 mm (2.6 in) |
| 1930 | 46.4 mm (1.8 in) |
| 1931 | 35.5 mm (1.4 in) |
| 1932 | 28.7 mm (1.1 in) |
| 1933 | 51.3 mm (2.0 in) |
| 1934 | 38.9 mm (1.5 in) |
| 1935 | 38.7 mm (1.5 in) |
| 1936 | 56.9 mm (2.2 in) |
| 1937 | 66.8 mm (2.6 in) |
| 1938 | 42.5 mm (1.7 in) |
| 1939 | 87.4 mm (3.4 in) |
| 1940 | 50.8 mm (2.0 in) |
| 1941 | 62.0 mm (2.4 in) |
| 1942 | 51.5 mm (2.0 in) |
| 1943 | 82.3 mm (3.2 in) |
| 1944 | 39.7 mm (1.6 in) |
| 1945 | 46.8 mm (1.8 in) |
| 1946 | 40.4 mm (1.6 in) |
| 1947 | 34.8 mm (1.4 in) |
| 1948 | 49.3 mm (1.9 in) |
| 1949 | 21.3 mm (0.8 in) |
| 1950 | 76.2 mm (3.0 in) |
| 1951 | 57.2 mm (2.3 in) |
| 1952 | 70.4 mm (2.8 in) |
| 1953 | 49.3 mm (1.9 in) |
| 1954 | 33.3 mm (1.3 in) |
| 1955 | 79.8 mm (3.1 in) |
| 1956 | 51.2 mm (2.0 in) |
| 1957 | 67.0 mm (2.6 in) |
| 1958 | 45.7 mm (1.8 in) |
| 1959 | 36.0 mm (1.4 in) |
| 1960 | 49.0 mm (1.9 in) |
| 1961 | 49.6 mm (2.0 in) |
| 1962 | 105.1 mm (4.1 in) |
| 1963 | 43.2 mm (1.7 in) |
| 1964 | 162.0 mm (6.4 in) |
| 1965 | 38.2 mm (1.5 in) |
| 1966 | 63.1 mm (2.5 in) |
| 1967 | 31.5 mm (1.2 in) |
| 1968 | 30.3 mm (1.2 in) |
| 1969 | 59.4 mm (2.3 in) |
| 1970 | 59.9 mm (2.4 in) |
| 1971 | 48.2 mm (1.9 in) |
| 1972 | 79.4 mm (3.1 in) |
| 1973 | 44.9 mm (1.8 in) |
| 1974 | 49.8 mm (2.0 in) |
| 1975 | 44.2 mm (1.7 in) |
| 1976 | 33.8 mm (1.3 in) |
| 1977 | 45.1 mm (1.8 in) |
| 1978 | 38.4 mm (1.5 in) |
| 1979 | 51.9 mm (2.0 in) |
| 1980 | 48.0 mm (1.9 in) |
| 1981 | 70.4 mm (2.8 in) |
| 1982 | 44.6 mm (1.8 in) |
| 1983 | 53.8 mm (2.1 in) |
| 1984 | 39.6 mm (1.6 in) |
| 1985 | 42.4 mm (1.7 in) |
| 1986 | 76.9 mm (3.0 in) |
| 1987 | 54.9 mm (2.2 in) |
| 1988 | 46.4 mm (1.8 in) |
| 1989 | 33.0 mm (1.3 in) |
| 1990 | 47.7 mm (1.9 in) |
| 1991 | 36.5 mm (1.4 in) |
| 1992 | 50.8 mm (2.0 in) |
| 1993 | 45.5 mm (1.8 in) |
| 1994 | 32.8 mm (1.3 in) |
| 1995 | 70.6 mm (2.8 in) |
| 1996 | 43.9 mm (1.7 in) |
| 1997 | 79.6 mm (3.1 in) |
| 1998 | 61.2 mm (2.4 in) |
| 1999 | 53.8 mm (2.1 in) |
| 2000 | 76.8 mm (3.0 in) |
| 2001 | 19.6 mm (0.8 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1887 | 61 days |
| 1888 | 15 days |
| 1889 | 67 days |
| 1894 | 32 days |
| 1895 | 62 days |
| 1897 | 7 days |
| 1898 | 31 days |
| 1899 | 83 days |
| 1900 | 30 days |
| 1901 | 62 days |
| 1902 | 61 days |
| 1903 | 33 days |
| 1904 | 16 days |
| 1905 | 56 days |
| 1906 | 68 days |
| 1907 | 56 days |
| 1908 | 61 days |
| 1909 | 69 days |
| 1910 | 53 days |
| 1911 | 77 days |
| 1912 | 44 days |
| 1913 | 38 days |
| 1914 | 82 days |
| 1915 | 47 days |
| 1916 | 110 days |
| 1917 | 77 days |
| 1918 | 46 days |
| 1919 | 74 days |
| 1920 | 81 days |
| 1921 | 81 days |
| 1922 | 39 days |
| 1923 | 48 days |
| 1924 | 55 days |
| 1925 | 29 days |
| 1926 | 74 days |
| 1927 | 62 days |
| 1928 | 70 days |
| 1929 | 127 days |
| 1930 | 46 days |
| 1931 | 70 days |
| 1932 | 79 days |
| 1933 | 73 days |
| 1934 | 50 days |
| 1935 | 50 days |
| 1936 | 85 days |
| 1937 | 39 days |
| 1938 | 74 days |
| 1939 | 66 days |
| 1940 | 93 days |
| 1941 | 39 days |
| 1942 | 117 days |
| 1943 | 53 days |
| 1944 | 53 days |
| 1945 | 87 days |
| 1946 | 51 days |
| 1947 | 40 days |
| 1948 | 27 days |
| 1949 | 42 days |
| 1950 | 44 days |
| 1951 | 139 days |
| 1952 | 39 days |
| 1953 | 59 days |
| 1954 | 34 days |
| 1955 | 46 days |
| 1956 | 26 days |
| 1957 | 37 days |
| 1958 | 26 days |
| 1959 | 55 days |
| 1960 | 62 days |
| 1961 | 54 days |
| 1962 | 54 days |
| 1963 | 41 days |
| 1964 | 56 days |
| 1965 | 52 days |
| 1966 | 35 days |
| 1967 | 87 days |
| 1968 | 30 days |
| 1969 | 55 days |
| 1970 | 106 days |
| 1971 | 45 days |
| 1972 | 66 days |
| 1973 | 53 days |
| 1974 | 61 days |
| 1975 | 46 days |
| 1976 | 44 days |
| 1977 | 53 days |
| 1978 | 62 days |
| 1979 | 33 days |
| 1980 | 74 days |
| 1981 | 110 days |
| 1982 | 44 days |
| 1983 | 29 days |
| 1984 | 50 days |
| 1985 | 58 days |
| 1986 | 69 days |
| 1987 | 58 days |
| 1988 | 101 days |
| 1989 | 26 days |
| 1990 | 25 days |
| 1991 | 63 days |
| 1992 | 47 days |
| 1993 | 69 days |
| 1994 | 96 days |
| 1995 | 118 days |
| 1996 | 31 days |
| 1997 | 27 days |
| 1998 | 62 days |
| 1999 | 65 days |
| 2000 | 33 days |
| 2001 | 19 days |
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
90 years with a frostAcross 90 years with a frost, the median last spring frost at Klamath Falls 2 SSW falls on 1 June and the median first autumn frost on 21 September, which leaves a median of 115 days between them.
In 1966 to 1997 the median growing season was 118 days. That is 6 days more than in 1901 to 1934.
Fitted over all years, the growing season changes by +2.0 days per decade at this station.
| Measure | Median, all years | Earliest period (1901 to 1934) | Recent period (1966 to 1997) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 1 June | 4 June | 2 June | 2 days earlier | 0.0 days per decade |
| First autumn frost | 21 September | 19 September | 21 September | 2 days later | +2.0 days per decade |
| Growing days | 115 days | 112 days | 118 days | 6 days more | +2.0 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
91 years, 1902 to 1997A day with at least 26.3 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 60.4 mm (2.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 26.3 mm (1.0 in) | |
| 5 years | 34.9 mm (1.4 in) | |
| 10 years | 40.8 mm (1.6 in) | |
| 25 years | 48.5 mm (1.9 in) | |
| 50 years | 54.4 mm (2.1 in) | |
| 100 years | 60.4 mm (2.4 in) | Longer than the 91 years of record |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 91 years of values from 1902 to 1997.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 65.5 mm (2.6 in) in 1964; 59.4 mm (2.3 in) in 1957; 55.9 mm (2.2 in) in 1939.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Klamath Falls 2 SSW, at 1971. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1971 ran 0.3 C (0.6 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1971 | +0.3 | +0.6 | likely | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).