Carson Weather Records (USC00321370)
Record envelope, standing records and threshold days for Carson (USC00321370), North Dakota, United States, with 101 years of record.
Key Facts for Carson
- Carson (USC00321370) is a weather station in North Dakota, United States at 46.42 latitude and -101.57 longitude, 712 m (2,335 ft) above sea level.
- The station reports from 1912 to 2012, 101 years of record.
- 1,464 records set at Carson still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Carson set a daily record precipitation of 48.8 mm (1.9 in) on 6 July 2012.
About the Station
- Location: North Dakota, United States, 46.42 latitude, -101.57 longitude.
- Elevation: 712 m (2,335 ft).
- Period of record: 1912 to 2012, 101 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 | 20.0 C (68.0 F) | -40.6 C (-41.1 F) | n/a | n/a |
| Feb | 20.0 C (68.0 F) | -41.7 C (-43.1 F) | n/a | n/a |
| Mar | 28.3 C (82.9 F) | -35.6 C (-32.1 F) | n/a | n/a |
| Apr | 34.4 C (93.9 F) | -24.4 C (-11.9 F) | n/a | n/a |
| May | 41.1 C (106.0 F) | -16.1 C (3.0 F) | n/a | n/a |
| Jun | 42.2 C (108.0 F) | -2.2 C (28.0 F) | n/a | n/a |
| Jul | 46.7 C (116.1 F) | -1.7 C (28.9 F) | n/a | n/a |
| Aug | 42.8 C (109.0 F) | -3.3 C (26.1 F) | n/a | n/a |
| Sep | 40.6 C (105.1 F) | -12.2 C (10.0 F) | n/a | n/a |
| Oct | 36.7 C (98.1 F) | -26.7 C (-16.1 F) | n/a | n/a |
| Nov | 25.0 C (77.0 F) | -31.7 C (-25.1 F) | n/a | n/a |
| Dec | 20.0 C (68.0 F) | -39.4 C (-38.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1912 | 18 |
| 1913 | 30 |
| 1914 | 20 |
| 1915 | 18 |
| 1916 | 12 |
| 1917 | 31 |
| 1918 | 20 |
| 1919 | 34 |
| 1920 | 18 |
| 1921 | 25 |
| 1922 | 26 |
| 1923 | 16 |
| 1924 | 23 |
| 1925 | 38 |
| 1926 | 12 |
| 1927 | 19 |
| 1928 | 16 |
| 1929 | 16 |
| 1930 | 14 |
| 1931 | 27 |
| 1932 | 18 |
| 1933 | 19 |
| 1934 | 38 |
| 1935 | 11 |
| 1936 | 60 |
| 1937 | 23 |
| 1938 | 15 |
| 1939 | 35 |
| 1940 | 11 |
| 1941 | 12 |
| 1942 | 17 |
| 1943 | 17 |
| 1944 | 7 |
| 1945 | 16 |
| 1946 | 12 |
| 1947 | 13 |
| 1948 | 18 |
| 1949 | 17 |
| 1950 | 21 |
| 1951 | 9 |
| 1952 | 16 |
| 1953 | 12 |
| 1954 | 18 |
| 1955 | 14 |
| 1956 | 16 |
| 1957 | 8 |
| 1958 | 17 |
| 1959 | 10 |
| 1960 | 8 |
| 1961 | 15 |
| 1962 | 16 |
| 1963 | 16 |
| 1964 | 10 |
| 1965 | 25 |
| 1966 | 8 |
| 1967 | 16 |
| 1968 | 18 |
| 1969 | 8 |
| 1970 | 7 |
| 1971 | 5 |
| 1972 | 18 |
| 1973 | 10 |
| 1974 | 6 |
| 1975 | 9 |
| 1976 | 9 |
| 1977 | 15 |
| 1978 | 6 |
| 1979 | 10 |
| 1980 | 13 |
| 1981 | 11 |
| 1982 | 4 |
| 1983 | 14 |
| 1984 | 5 |
| 1985 | 18 |
| 1986 | 11 |
| 1987 | 17 |
| 1988 | 15 |
| 1989 | 18 |
| 1990 | 6 |
| 1991 | 26 |
| 1992 | 25 |
| 1993 | 8 |
| 1994 | 11 |
| 1995 | 9 |
| 1996 | 11 |
| 1997 | 13 |
| 1998 | 3 |
| 2006 | 1 |
| 2007 | 11 |
| 2008 | 2 |
| 2009 | 14 |
| 2010 | 2 |
| 2011 | 7 |
| 2012 | 21 |
All-Time Record Progression
3 new records| Date | Kind | Detail |
|---|---|---|
| 1964-06-09 | Record daily precipitation | Record daily precipitation 91.4 mm (3.6 in) |
| 2009-02-26 | Record daily snowfall | Record daily snowfall 38.1 cm (15.0 in) |
| 2009-12-26 | Record daily snowfall | Record daily snowfall 40.6 cm (16.0 in) |
Wettest Day of Each Month
Jun: 91.4 mm (3.6 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 25.1 mm (1.0 in) | 23 January 2010 |
| Feb | 35.6 mm (1.4 in) | 26 February 2009 |
| Mar | 35.6 mm (1.4 in) | 23 March 2011 |
| Apr | 43.2 mm (1.7 in) | 27 April 1964 |
| May | 71.4 mm (2.8 in) | 21 May 2011 |
| Jun | 91.4 mm (3.6 in) | 9 June 1964 |
| Jul | 57.2 mm (2.3 in) | 18 July 1923 |
| Aug | 69.9 mm (2.8 in) | 18 August 2007 |
| Sep | 54.4 mm (2.1 in) | 24 September 1977 |
| Oct | 62.2 mm (2.4 in) | 3 October 1915 |
| Nov | 36.3 mm (1.4 in) | 3 November 1956 |
| Dec | 16.3 mm (0.6 in) | 30 December 1922 |
Period of Record Coverage
1912 to 2012| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1912 | 332 | 91% | Yes |
| 1913 | 355 | 97% | Yes |
| 1914 | 362 | 99% | Yes |
| 1915 | 308 | 84% | No |
| 1916 | 181 | 49% | No |
| 1917 | 360 | 99% | Yes |
| 1918 | 360 | 99% | Yes |
| 1919 | 360 | 99% | Yes |
| 1920 | 348 | 95% | Yes |
| 1921 | 338 | 93% | Yes |
| 1922 | 363 | 99% | Yes |
| 1923 | 331 | 91% | Yes |
| 1924 | 356 | 97% | Yes |
| 1925 | 361 | 99% | Yes |
| 1926 | 358 | 98% | Yes |
| 1927 | 360 | 99% | Yes |
| 1928 | 362 | 99% | Yes |
| 1929 | 361 | 99% | Yes |
| 1930 | 331 | 91% | Yes |
| 1931 | 363 | 99% | Yes |
| 1932 | 363 | 99% | Yes |
| 1933 | 331 | 91% | Yes |
| 1934 | 362 | 99% | Yes |
| 1935 | 361 | 99% | Yes |
| 1936 | 363 | 99% | Yes |
| 1937 | 364 | 100% | Yes |
| 1938 | 363 | 99% | Yes |
| 1939 | 363 | 99% | Yes |
| 1940 | 364 | 99% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 361 | 99% | Yes |
| 1943 | 364 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 363 | 99% | Yes |
| 1946 | 363 | 99% | Yes |
| 1947 | 364 | 100% | Yes |
| 1948 | 361 | 99% | Yes |
| 1949 | 359 | 98% | Yes |
| 1950 | 361 | 99% | Yes |
| 1951 | 361 | 99% | Yes |
| 1952 | 329 | 90% | No |
| 1953 | 328 | 90% | No |
| 1954 | 345 | 95% | Yes |
| 1955 | 265 | 73% | No |
| 1956 | 288 | 79% | No |
| 1957 | 358 | 98% | Yes |
| 1958 | 359 | 98% | Yes |
| 1959 | 360 | 99% | Yes |
| 1960 | 361 | 99% | Yes |
| 1961 | 363 | 99% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 332 | 91% | Yes |
| 1967 | 364 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 364 | 100% | Yes |
| 1972 | 364 | 99% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 364 | 100% | Yes |
| 1975 | 354 | 97% | Yes |
| 1976 | 364 | 99% | Yes |
| 1977 | 362 | 99% | Yes |
| 1978 | 362 | 99% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 360 | 99% | Yes |
| 1982 | 360 | 99% | Yes |
| 1983 | 360 | 99% | Yes |
| 1984 | 365 | 100% | Yes |
| 1985 | 364 | 100% | Yes |
| 1986 | 356 | 98% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 363 | 99% | Yes |
| 1989 | 356 | 98% | Yes |
| 1990 | 362 | 99% | Yes |
| 1991 | 342 | 94% | Yes |
| 1992 | 365 | 100% | Yes |
| 1993 | 363 | 99% | Yes |
| 1994 | 357 | 98% | Yes |
| 1995 | 352 | 96% | Yes |
| 1996 | 332 | 91% | Yes |
| 1997 | 340 | 93% | Yes |
| 1998 | 129 | 35% | No |
| 2006 | 27 | 7% | No |
| 2007 | 341 | 93% | Yes |
| 2008 | 319 | 87% | No |
| 2009 | 346 | 95% | Yes |
| 2010 | 334 | 92% | Yes |
| 2011 | 351 | 96% | Yes |
| 2012 | 212 | 58% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 6 July 2012 | Carson, US | daily rain | 48.8 mm (1.9 in) | 20.6 mm (0.8 in) | 66 years | 50 of 100 (Notable) |
| 6 June 2012 | Carson, US | daily high min (Tie) | 17.8 C (64.0 F) | tie | 24 years | 4 of 100 (Routine) |
| 31 May 2012 | Carson, US | daily low min (Tie) | 0.0 C (32.0 F) | tie | 93 years | 9 of 100 (Routine) |
| 2 April 2012 | Carson, US | daily high min | 8.9 C (48.0 F) | 5.6 C (10.1 F) | 87 years | 46 of 100 (Notable) |
| 2 April 2012 | Carson, US | daily high max | 28.3 C (82.9 F) | 5.0 C (9.0 F) | 36 years | 26 of 100 (Routine) |
| 1 April 2012 | Carson, US | daily high min | 10.0 C (50.0 F) | 6.7 C (12.1 F) | 84 years | 47 of 100 (Notable) |
| 1 April 2012 | Carson, US | daily high max (Tie) | 23.9 C (75.0 F) | tie | 84 years | 8 of 100 (Routine) |
| 24 March 2012 | Carson, US | daily high min | 5.0 C (41.0 F) | 1.7 C (3.1 F) | 73 years | 33 of 100 (Routine) |
| 23 March 2012 | Carson, US | daily high min | 5.6 C (42.1 F) | 2.3 C (4.1 F) | 67 years | 33 of 100 (Routine) |
| 19 March 2012 | Carson, US | monthly high min | 8.3 C (46.9 F) | 1.1 C (2.0 F) | 86 years | 47 of 100 (Notable) |
| 19 March 2012 | Carson, US | monthly high max (Tie) | 28.3 C (82.9 F) | tie | 72 years | 10 of 100 (Routine) |
| 18 March 2012 | Carson, US | daily high min | 2.8 C (37.0 F) | 2.2 C (4.0 F) | 94 years | 41 of 100 (Notable) |
| 18 March 2012 | Carson, US | daily high max | 22.8 C (73.0 F) | 4.5 C (8.1 F) | 44 years | 28 of 100 (Routine) |
| 17 March 2012 | Carson, US | daily high min | 4.4 C (39.9 F) | 1.6 C (2.9 F) | 74 years | 34 of 100 (Routine) |
| 17 March 2012 | Carson, US | daily high max | 26.1 C (79.0 F) | 7.8 C (14.0 F) | 31 years | 28 of 100 (Routine) |
| 16 March 2012 | Carson, US | daily high max (Tie) | 19.4 C (66.9 F) | tie | 17 years | 3 of 100 (Routine) |
| 14 March 2012 | Carson, US | daily high max | 24.4 C (75.9 F) | 3.3 C (5.9 F) | 77 years | 37 of 100 (Notable) |
| 12 March 2012 | Carson, US | daily high max | 20.6 C (69.1 F) | 0.6 C (1.1 F) | 78 years | 33 of 100 (Routine) |
| 11 March 2012 | Carson, US | daily high max | 20.0 C (68.0 F) | 1.7 C (3.1 F) | 78 years | 35 of 100 (Notable) |
| 11 March 2012 | Carson, US | daily high min (Tie) | 1.7 C (35.1 F) | tie | 16 years | 3 of 100 (Routine) |
Climate Trend
77 complete years, 1913 to 2011| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1913 | 5.7 C | +0.50 C |
| 1914 | 5.3 C | +0.11 C |
| 1917 | 3.2 C | -1.95 C |
| 1918 | 5.2 C | +0.03 C |
| 1919 | 4.4 C | -0.77 C |
| 1920 | 4.3 C | -0.89 C |
| 1922 | 4.9 C | -0.33 C |
| 1924 | 3.5 C | -1.69 C |
| 1925 | 3.8 C | -1.36 C |
| 1926 | 6.2 C | +1.01 C |
| 1927 | 4.1 C | -1.07 C |
| 1928 | 6.1 C | +0.92 C |
| 1929 | 4.1 C | -1.08 C |
| 1931 | 7.3 C | +2.13 C |
| 1932 | 5.4 C | +0.24 C |
| 1934 | 7.5 C | +2.35 C |
| 1935 | 5.3 C | +0.10 C |
| 1936 | 4.7 C | -0.52 C |
| 1937 | 5.1 C | -0.05 C |
| 1938 | 7.0 C | +1.81 C |
| 1939 | 7.2 C | +2.04 C |
| 1940 | 5.9 C | +0.76 C |
| 1941 | 6.7 C | +1.47 C |
| 1942 | 5.8 C | +0.62 C |
| 1943 | 5.3 C | +0.12 C |
| 1944 | 5.8 C | +0.57 C |
| 1945 | 4.6 C | -0.61 C |
| 1946 | 6.1 C | +0.91 C |
| 1947 | 5.9 C | +0.68 C |
| 1948 | 6.1 C | +0.89 C |
| 1949 | 5.4 C | +0.20 C |
| 1950 | 2.8 C | -2.41 C |
| 1951 | 3.3 C | -1.84 C |
| 1954 | 6.5 C | +1.36 C |
| 1957 | 5.4 C | +0.24 C |
| 1958 | 5.8 C | +0.60 C |
| 1959 | 5.0 C | -0.14 C |
| 1960 | 5.2 C | +0.06 C |
| 1961 | 6.3 C | +1.16 C |
| 1962 | 5.4 C | +0.23 C |
| 1963 | 6.2 C | +1.02 C |
| 1964 | 5.0 C | -0.18 C |
| 1965 | 3.8 C | -1.34 C |
| 1967 | 4.8 C | -0.42 C |
| 1968 | 4.4 C | -0.83 C |
| 1969 | 4.1 C | -1.12 C |
| 1970 | 4.0 C | -1.17 C |
| 1971 | 4.3 C | -0.85 C |
| 1972 | 3.1 C | -2.08 C |
| 1973 | 5.4 C | +0.22 C |
| 1974 | 5.5 C | +0.27 C |
| 1975 | 4.2 C | -1.02 C |
| 1976 | 5.8 C | +0.58 C |
| 1977 | 5.4 C | +0.19 C |
| 1978 | 3.1 C | -2.06 C |
| 1979 | 3.1 C | -2.06 C |
| 1980 | 6.0 C | +0.85 C |
| 1981 | 6.7 C | +1.55 C |
| 1982 | 3.6 C | -1.59 C |
| 1983 | 5.6 C | +0.40 C |
| 1984 | 5.3 C | +0.12 C |
| 1985 | 3.7 C | -1.44 C |
| 1986 | 5.5 C | +0.36 C |
| 1987 | 7.6 C | +2.37 C |
| 1988 | 6.3 C | +1.15 C |
| 1989 | 4.9 C | -0.32 C |
| 1990 | 6.5 C | +1.34 C |
| 1991 | 6.4 C | +1.26 C |
| 1992 | 5.9 C | +0.68 C |
| 1993 | 3.9 C | -1.33 C |
| 1994 | 5.1 C | -0.05 C |
| 1995 | 5.2 C | +0.04 C |
| 1996 | 3.7 C | -1.45 C |
| 1997 | 6.1 C | +0.94 C |
| 2007 | 6.7 C | +1.55 C |
| 2009 | 3.8 C | -1.35 C |
| 2011 | 4.9 C | -0.31 C |
The fitted trend in annual mean temperature here over 1913 to 2011 is -0.01 C (-0.11 to 0.09) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.01 F (-0.20 to 0.17) per decade. The slope is a straight line fitted to 77 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.01 C (-0.11 to 0.09) per decade | -0.01 F (-0.20 to 0.17) per decade | 1913 to 2011 | 77 | Not clearly different from zero |
| Mean daily maximum | -0.13 C (-0.25 to -0.01) per decade | -0.23 F (-0.45 to -0.02) per decade | 1913 to 2011 | 77 | Fall |
| Mean daily minimum | 0.12 C (0.02 to 0.21) per decade | 0.21 F (0.03 to 0.38) per decade | 1913 to 2011 | 77 | 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
1912 to 2012| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 46.7 C (116.1 F) | 1936 | 38.3 C (100.9 F) | 94 |
| Coldest night (TNn) | -41.7 C (-43.1 F) | 1936 | -33.9 C (-29.0 F) | 94 |
| Wettest day (Rx1day) | 91.4 mm (3.6 in) | 1964 | 38.5 mm (1.5 in) | 94 |
| Wettest five days (Rx5day) | 145.5 mm (5.7 in) | 1941 | 60.9 mm (2.4 in) | 93 |
| Longest dry spell (CDD) | 81 days | 1913 | 34 days | 94 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1912 | 38.3 C (100.9 F) |
| 1913 | 38.9 C (102.0 F) |
| 1914 | 35.0 C (95.0 F) |
| 1915 | 35.0 C (95.0 F) |
| 1916 | 36.7 C (98.1 F) |
| 1917 | 40.0 C (104.0 F) |
| 1918 | 37.8 C (100.0 F) |
| 1919 | 39.4 C (102.9 F) |
| 1920 | 35.6 C (96.1 F) |
| 1921 | 43.3 C (109.9 F) |
| 1922 | 36.7 C (98.1 F) |
| 1923 | 36.1 C (97.0 F) |
| 1924 | 35.6 C (96.1 F) |
| 1925 | 38.3 C (100.9 F) |
| 1926 | 40.0 C (104.0 F) |
| 1927 | 38.3 C (100.9 F) |
| 1928 | 38.3 C (100.9 F) |
| 1929 | 42.2 C (108.0 F) |
| 1930 | 40.6 C (105.1 F) |
| 1931 | 42.8 C (109.0 F) |
| 1932 | 37.8 C (100.0 F) |
| 1933 | 42.2 C (108.0 F) |
| 1934 | 42.8 C (109.0 F) |
| 1935 | 40.6 C (105.1 F) |
| 1936 | 46.7 C (116.1 F) |
| 1937 | 40.6 C (105.1 F) |
| 1938 | 41.1 C (106.0 F) |
| 1939 | 40.6 C (105.1 F) |
| 1940 | 40.6 C (105.1 F) |
| 1941 | 42.8 C (109.0 F) |
| 1942 | 38.3 C (100.9 F) |
| 1943 | 37.8 C (100.0 F) |
| 1944 | 38.9 C (102.0 F) |
| 1945 | 40.6 C (105.1 F) |
| 1946 | 43.3 C (109.9 F) |
| 1947 | 42.2 C (108.0 F) |
| 1948 | 40.6 C (105.1 F) |
| 1949 | 42.2 C (108.0 F) |
| 1950 | 36.7 C (98.1 F) |
| 1951 | 38.9 C (102.0 F) |
| 1952 | 37.8 C (100.0 F) |
| 1953 | 37.8 C (100.0 F) |
| 1954 | 40.6 C (105.1 F) |
| 1955 | 38.3 C (100.9 F) |
| 1956 | 37.8 C (100.0 F) |
| 1957 | 38.9 C (102.0 F) |
| 1958 | 41.1 C (106.0 F) |
| 1959 | 40.0 C (104.0 F) |
| 1960 | 40.6 C (105.1 F) |
| 1961 | 40.0 C (104.0 F) |
| 1962 | 35.0 C (95.0 F) |
| 1963 | 39.4 C (102.9 F) |
| 1964 | 38.9 C (102.0 F) |
| 1965 | 36.1 C (97.0 F) |
| 1966 | 36.1 C (97.0 F) |
| 1967 | 40.0 C (104.0 F) |
| 1968 | 37.8 C (100.0 F) |
| 1969 | 38.3 C (100.9 F) |
| 1970 | 38.3 C (100.9 F) |
| 1971 | 37.8 C (100.0 F) |
| 1972 | 35.6 C (96.1 F) |
| 1973 | 40.6 C (105.1 F) |
| 1974 | 36.7 C (98.1 F) |
| 1975 | 38.3 C (100.9 F) |
| 1976 | 37.8 C (100.0 F) |
| 1977 | 37.2 C (99.0 F) |
| 1978 | 38.9 C (102.0 F) |
| 1979 | 37.2 C (99.0 F) |
| 1980 | 37.8 C (100.0 F) |
| 1981 | 39.4 C (102.9 F) |
| 1982 | 35.0 C (95.0 F) |
| 1983 | 37.8 C (100.0 F) |
| 1984 | 35.6 C (96.1 F) |
| 1985 | 36.7 C (98.1 F) |
| 1986 | 36.1 C (97.0 F) |
| 1987 | 34.4 C (93.9 F) |
| 1988 | 38.9 C (102.0 F) |
| 1989 | 39.4 C (102.9 F) |
| 1990 | 36.7 C (98.1 F) |
| 1991 | 38.3 C (100.9 F) |
| 1992 | 33.9 C (93.0 F) |
| 1993 | 32.8 C (91.0 F) |
| 1994 | 35.0 C (95.0 F) |
| 1995 | 37.2 C (99.0 F) |
| 1996 | 37.2 C (99.0 F) |
| 1997 | 36.7 C (98.1 F) |
| 1998 | 31.7 C (89.1 F) |
| 2006 | 15.0 C (59.0 F) |
| 2007 | 40.6 C (105.1 F) |
| 2008 | 36.7 C (98.1 F) |
| 2009 | 34.4 C (93.9 F) |
| 2010 | 38.9 C (102.0 F) |
| 2011 | 35.6 C (96.1 F) |
| 2012 | 37.2 C (99.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1912 | -31.1 C (-24.0 F) |
| 1913 | -37.8 C (-36.0 F) |
| 1914 | -36.7 C (-34.1 F) |
| 1915 | -40.0 C (-40.0 F) |
| 1916 | -36.1 C (-33.0 F) |
| 1917 | -41.1 C (-42.0 F) |
| 1918 | -38.9 C (-38.0 F) |
| 1919 | -37.8 C (-36.0 F) |
| 1920 | -37.2 C (-35.0 F) |
| 1921 | -30.6 C (-23.1 F) |
| 1922 | -33.3 C (-27.9 F) |
| 1923 | -32.8 C (-27.0 F) |
| 1924 | -38.9 C (-38.0 F) |
| 1925 | -36.7 C (-34.1 F) |
| 1926 | -32.8 C (-27.0 F) |
| 1927 | -37.2 C (-35.0 F) |
| 1928 | -37.2 C (-35.0 F) |
| 1929 | -37.2 C (-35.0 F) |
| 1930 | -36.7 C (-34.1 F) |
| 1931 | -26.7 C (-16.1 F) |
| 1932 | -34.4 C (-29.9 F) |
| 1933 | -39.4 C (-38.9 F) |
| 1934 | -31.1 C (-24.0 F) |
| 1935 | -36.1 C (-33.0 F) |
| 1936 | -41.7 C (-43.1 F) |
| 1937 | -33.9 C (-29.0 F) |
| 1938 | -34.4 C (-29.9 F) |
| 1939 | -35.6 C (-32.1 F) |
| 1940 | -32.8 C (-27.0 F) |
| 1941 | -31.7 C (-25.1 F) |
| 1942 | -33.9 C (-29.0 F) |
| 1943 | -40.0 C (-40.0 F) |
| 1944 | -32.8 C (-27.0 F) |
| 1945 | -31.1 C (-24.0 F) |
| 1946 | -32.8 C (-27.0 F) |
| 1947 | -32.2 C (-26.0 F) |
| 1948 | -35.0 C (-31.0 F) |
| 1949 | -34.4 C (-29.9 F) |
| 1950 | -38.9 C (-38.0 F) |
| 1951 | -35.6 C (-32.1 F) |
| 1952 | -30.6 C (-23.1 F) |
| 1953 | -28.9 C (-20.0 F) |
| 1954 | -35.0 C (-31.0 F) |
| 1955 | -24.4 C (-11.9 F) |
| 1956 | -29.4 C (-20.9 F) |
| 1957 | -33.3 C (-27.9 F) |
| 1958 | -29.4 C (-20.9 F) |
| 1959 | -32.2 C (-26.0 F) |
| 1960 | -30.6 C (-23.1 F) |
| 1961 | -30.6 C (-23.1 F) |
| 1962 | -40.0 C (-40.0 F) |
| 1963 | -36.1 C (-33.0 F) |
| 1964 | -32.8 C (-27.0 F) |
| 1965 | -35.6 C (-32.1 F) |
| 1966 | -40.6 C (-41.1 F) |
| 1967 | -36.7 C (-34.1 F) |
| 1968 | -36.7 C (-34.1 F) |
| 1969 | -33.9 C (-29.0 F) |
| 1970 | -37.8 C (-36.0 F) |
| 1971 | -33.9 C (-29.0 F) |
| 1972 | -36.7 C (-34.1 F) |
| 1973 | -33.3 C (-27.9 F) |
| 1974 | -34.4 C (-29.9 F) |
| 1975 | -33.3 C (-27.9 F) |
| 1976 | -32.2 C (-26.0 F) |
| 1977 | -35.0 C (-31.0 F) |
| 1978 | -35.0 C (-31.0 F) |
| 1979 | -34.4 C (-29.9 F) |
| 1980 | -32.8 C (-27.0 F) |
| 1981 | -30.6 C (-23.1 F) |
| 1982 | -35.6 C (-32.1 F) |
| 1983 | -39.4 C (-38.9 F) |
| 1984 | -33.9 C (-29.0 F) |
| 1985 | -32.8 C (-27.0 F) |
| 1986 | -31.1 C (-24.0 F) |
| 1987 | -23.3 C (-9.9 F) |
| 1988 | -35.0 C (-31.0 F) |
| 1989 | -36.7 C (-34.1 F) |
| 1990 | -35.0 C (-31.0 F) |
| 1991 | -29.4 C (-20.9 F) |
| 1992 | -32.2 C (-26.0 F) |
| 1993 | -31.7 C (-25.1 F) |
| 1994 | -35.6 C (-32.1 F) |
| 1995 | -29.4 C (-20.9 F) |
| 1996 | -38.3 C (-36.9 F) |
| 1997 | -33.3 C (-27.9 F) |
| 1998 | -32.2 C (-26.0 F) |
| 2006 | -26.1 C (-15.0 F) |
| 2007 | -30.6 C (-23.1 F) |
| 2008 | -31.7 C (-25.1 F) |
| 2009 | -35.0 C (-31.0 F) |
| 2010 | -32.8 C (-27.0 F) |
| 2011 | -33.3 C (-27.9 F) |
| 2012 | -25.0 C (-13.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1912 | 42.2 mm (1.7 in) |
| 1913 | 20.1 mm (0.8 in) |
| 1914 | 53.8 mm (2.1 in) |
| 1915 | 79.8 mm (3.1 in) |
| 1916 | 40.6 mm (1.6 in) |
| 1917 | 17.8 mm (0.7 in) |
| 1918 | 26.7 mm (1.1 in) |
| 1919 | 36.3 mm (1.4 in) |
| 1920 | 25.4 mm (1.0 in) |
| 1921 | 24.6 mm (1.0 in) |
| 1922 | 43.7 mm (1.7 in) |
| 1923 | 57.2 mm (2.3 in) |
| 1924 | 43.2 mm (1.7 in) |
| 1925 | 50.8 mm (2.0 in) |
| 1926 | 33.5 mm (1.3 in) |
| 1927 | 34.3 mm (1.4 in) |
| 1928 | 35.6 mm (1.4 in) |
| 1929 | 45.7 mm (1.8 in) |
| 1930 | 38.4 mm (1.5 in) |
| 1931 | 52.8 mm (2.1 in) |
| 1932 | 33.8 mm (1.3 in) |
| 1933 | 38.1 mm (1.5 in) |
| 1934 | 23.6 mm (0.9 in) |
| 1935 | 58.4 mm (2.3 in) |
| 1936 | 25.4 mm (1.0 in) |
| 1937 | 61.0 mm (2.4 in) |
| 1938 | 38.4 mm (1.5 in) |
| 1939 | 53.1 mm (2.1 in) |
| 1940 | 35.8 mm (1.4 in) |
| 1941 | 84.8 mm (3.3 in) |
| 1942 | 36.1 mm (1.4 in) |
| 1943 | 38.1 mm (1.5 in) |
| 1944 | 34.5 mm (1.4 in) |
| 1945 | 45.7 mm (1.8 in) |
| 1946 | 38.6 mm (1.5 in) |
| 1947 | 45.7 mm (1.8 in) |
| 1948 | 49.0 mm (1.9 in) |
| 1949 | 35.8 mm (1.4 in) |
| 1950 | 25.4 mm (1.0 in) |
| 1951 | 35.6 mm (1.4 in) |
| 1952 | 40.9 mm (1.6 in) |
| 1953 | 35.6 mm (1.4 in) |
| 1954 | 33.3 mm (1.3 in) |
| 1955 | 45.2 mm (1.8 in) |
| 1956 | 36.3 mm (1.4 in) |
| 1957 | 57.2 mm (2.3 in) |
| 1958 | 28.2 mm (1.1 in) |
| 1959 | 22.9 mm (0.9 in) |
| 1960 | 36.6 mm (1.4 in) |
| 1961 | 37.6 mm (1.5 in) |
| 1962 | 52.8 mm (2.1 in) |
| 1963 | 42.7 mm (1.7 in) |
| 1964 | 91.4 mm (3.6 in) |
| 1965 | 52.6 mm (2.1 in) |
| 1966 | 35.6 mm (1.4 in) |
| 1967 | 43.2 mm (1.7 in) |
| 1968 | 31.5 mm (1.2 in) |
| 1969 | 45.0 mm (1.8 in) |
| 1970 | 31.0 mm (1.2 in) |
| 1971 | 43.4 mm (1.7 in) |
| 1972 | 53.8 mm (2.1 in) |
| 1973 | 35.1 mm (1.4 in) |
| 1974 | 23.6 mm (0.9 in) |
| 1975 | 42.2 mm (1.7 in) |
| 1976 | 37.1 mm (1.5 in) |
| 1977 | 54.4 mm (2.1 in) |
| 1978 | 29.5 mm (1.2 in) |
| 1979 | 51.8 mm (2.0 in) |
| 1980 | 31.5 mm (1.2 in) |
| 1981 | 31.0 mm (1.2 in) |
| 1982 | 39.6 mm (1.6 in) |
| 1983 | 44.7 mm (1.8 in) |
| 1984 | 48.3 mm (1.9 in) |
| 1985 | 69.3 mm (2.7 in) |
| 1986 | 54.6 mm (2.1 in) |
| 1987 | 52.6 mm (2.1 in) |
| 1988 | 34.3 mm (1.4 in) |
| 1989 | 31.0 mm (1.2 in) |
| 1990 | 22.1 mm (0.9 in) |
| 1991 | 45.2 mm (1.8 in) |
| 1992 | 26.7 mm (1.1 in) |
| 1993 | 56.4 mm (2.2 in) |
| 1994 | 53.3 mm (2.1 in) |
| 1995 | 39.4 mm (1.6 in) |
| 1996 | 22.9 mm (0.9 in) |
| 1997 | 27.9 mm (1.1 in) |
| 1998 | 12.7 mm (0.5 in) |
| 2006 | 1.0 mm (0.04 in) |
| 2007 | 69.9 mm (2.8 in) |
| 2008 | 32.0 mm (1.3 in) |
| 2009 | 48.8 mm (1.9 in) |
| 2010 | 63.5 mm (2.5 in) |
| 2011 | 71.4 mm (2.8 in) |
| 2012 | 48.8 mm (1.9 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1912 | 65.5 mm (2.6 in) |
| 1913 | 23.6 mm (0.9 in) |
| 1914 | 124.0 mm (4.9 in) |
| 1915 | 93.3 mm (3.7 in) |
| 1916 | 53.3 mm (2.1 in) |
| 1917 | 25.4 mm (1.0 in) |
| 1918 | 58.4 mm (2.3 in) |
| 1919 | 42.5 mm (1.7 in) |
| 1920 | 43.4 mm (1.7 in) |
| 1921 | 45.4 mm (1.8 in) |
| 1922 | 33.0 mm (1.3 in) |
| 1923 | 109.3 mm (4.3 in) |
| 1924 | 68.8 mm (2.7 in) |
| 1925 | 89.6 mm (3.5 in) |
| 1926 | 35.3 mm (1.4 in) |
| 1927 | 85.2 mm (3.4 in) |
| 1928 | 61.0 mm (2.4 in) |
| 1929 | n/a |
| 1930 | 83.9 mm (3.3 in) |
| 1931 | 61.2 mm (2.4 in) |
| 1932 | 62.2 mm (2.4 in) |
| 1933 | 38.6 mm (1.5 in) |
| 1934 | 46.8 mm (1.8 in) |
| 1935 | 62.2 mm (2.4 in) |
| 1936 | 41.9 mm (1.6 in) |
| 1937 | 99.9 mm (3.9 in) |
| 1938 | 51.3 mm (2.0 in) |
| 1939 | 54.1 mm (2.1 in) |
| 1940 | 56.6 mm (2.2 in) |
| 1941 | 145.5 mm (5.7 in) |
| 1942 | 60.9 mm (2.4 in) |
| 1943 | 97.8 mm (3.9 in) |
| 1944 | 69.9 mm (2.8 in) |
| 1945 | 47.2 mm (1.9 in) |
| 1946 | 70.9 mm (2.8 in) |
| 1947 | 85.9 mm (3.4 in) |
| 1948 | 50.8 mm (2.0 in) |
| 1949 | 50.8 mm (2.0 in) |
| 1950 | 54.9 mm (2.2 in) |
| 1951 | 54.9 mm (2.2 in) |
| 1952 | 64.3 mm (2.5 in) |
| 1953 | 74.7 mm (2.9 in) |
| 1954 | 58.6 mm (2.3 in) |
| 1955 | 65.2 mm (2.6 in) |
| 1956 | 60.3 mm (2.4 in) |
| 1957 | 68.1 mm (2.7 in) |
| 1958 | 41.9 mm (1.6 in) |
| 1959 | 31.5 mm (1.2 in) |
| 1960 | 77.4 mm (3.0 in) |
| 1961 | 58.2 mm (2.3 in) |
| 1962 | 58.6 mm (2.3 in) |
| 1963 | 64.5 mm (2.5 in) |
| 1964 | 115.8 mm (4.6 in) |
| 1965 | 55.9 mm (2.2 in) |
| 1966 | 79.3 mm (3.1 in) |
| 1967 | 64.8 mm (2.6 in) |
| 1968 | 54.9 mm (2.2 in) |
| 1969 | 104.0 mm (4.1 in) |
| 1970 | 68.6 mm (2.7 in) |
| 1971 | 55.3 mm (2.2 in) |
| 1972 | 71.6 mm (2.8 in) |
| 1973 | 51.4 mm (2.0 in) |
| 1974 | 44.2 mm (1.7 in) |
| 1975 | 73.2 mm (2.9 in) |
| 1976 | 52.8 mm (2.1 in) |
| 1977 | 95.0 mm (3.7 in) |
| 1978 | 48.1 mm (1.9 in) |
| 1979 | 89.4 mm (3.5 in) |
| 1980 | 56.1 mm (2.2 in) |
| 1981 | 70.1 mm (2.8 in) |
| 1982 | 87.8 mm (3.5 in) |
| 1983 | 68.3 mm (2.7 in) |
| 1984 | 50.6 mm (2.0 in) |
| 1985 | 73.8 mm (2.9 in) |
| 1986 | 67.8 mm (2.7 in) |
| 1987 | 63.5 mm (2.5 in) |
| 1988 | 58.5 mm (2.3 in) |
| 1989 | 47.5 mm (1.9 in) |
| 1990 | 35.5 mm (1.4 in) |
| 1991 | 56.1 mm (2.2 in) |
| 1992 | 43.0 mm (1.7 in) |
| 1993 | 105.9 mm (4.2 in) |
| 1994 | 88.8 mm (3.5 in) |
| 1995 | 73.7 mm (2.9 in) |
| 1996 | 71.2 mm (2.8 in) |
| 1997 | 57.9 mm (2.3 in) |
| 1998 | 21.7 mm (0.9 in) |
| 2006 | 0.0 mm (0.00 in) |
| 2007 | 77.8 mm (3.1 in) |
| 2008 | 37.3 mm (1.5 in) |
| 2009 | 50.3 mm (2.0 in) |
| 2010 | 66.0 mm (2.6 in) |
| 2011 | 73.7 mm (2.9 in) |
| 2012 | 53.6 mm (2.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1912 | 47 days |
| 1913 | 81 days |
| 1914 | 57 days |
| 1915 | 61 days |
| 1916 | 19 days |
| 1917 | 28 days |
| 1918 | 35 days |
| 1919 | 44 days |
| 1920 | 28 days |
| 1921 | 27 days |
| 1922 | 28 days |
| 1923 | 13 days |
| 1924 | 17 days |
| 1925 | 30 days |
| 1926 | 19 days |
| 1927 | 26 days |
| 1928 | 15 days |
| 1929 | 2 days |
| 1930 | 19 days |
| 1931 | 19 days |
| 1932 | 25 days |
| 1933 | 28 days |
| 1934 | 53 days |
| 1935 | 32 days |
| 1936 | 34 days |
| 1937 | 40 days |
| 1938 | 34 days |
| 1939 | 29 days |
| 1940 | 20 days |
| 1941 | 53 days |
| 1942 | 37 days |
| 1943 | 34 days |
| 1944 | 39 days |
| 1945 | 40 days |
| 1946 | 36 days |
| 1947 | 29 days |
| 1948 | 30 days |
| 1949 | 33 days |
| 1950 | 23 days |
| 1951 | 36 days |
| 1952 | 55 days |
| 1953 | 45 days |
| 1954 | 44 days |
| 1955 | 31 days |
| 1956 | 30 days |
| 1957 | 35 days |
| 1958 | 28 days |
| 1959 | 25 days |
| 1960 | 44 days |
| 1961 | 51 days |
| 1962 | 46 days |
| 1963 | 47 days |
| 1964 | 53 days |
| 1965 | 34 days |
| 1966 | 28 days |
| 1967 | 48 days |
| 1968 | 30 days |
| 1969 | 50 days |
| 1970 | 30 days |
| 1971 | 53 days |
| 1972 | 34 days |
| 1973 | 23 days |
| 1974 | 48 days |
| 1975 | 32 days |
| 1976 | 35 days |
| 1977 | 38 days |
| 1978 | 32 days |
| 1979 | 80 days |
| 1980 | 52 days |
| 1981 | 57 days |
| 1982 | 25 days |
| 1983 | 40 days |
| 1984 | 40 days |
| 1985 | 44 days |
| 1986 | 43 days |
| 1987 | 46 days |
| 1988 | 45 days |
| 1989 | 35 days |
| 1990 | 46 days |
| 1991 | 43 days |
| 1992 | 38 days |
| 1993 | 25 days |
| 1994 | 34 days |
| 1995 | 13 days |
| 1996 | 16 days |
| 1997 | 39 days |
| 1998 | 23 days |
| 2006 | 15 days |
| 2007 | 20 days |
| 2008 | 31 days |
| 2009 | 33 days |
| 2010 | 23 days |
| 2011 | 26 days |
| 2012 | 28 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
77 years with a frostAcross 77 years with a frost, the median last spring frost at Carson falls on 21 May and the median first autumn frost on 18 September, which leaves a median of 118 days between them.
In 1971 to 2011 the median growing season was 129 days. That is 16 days more than in 1913 to 1948.
Fitted over all years, the growing season changes by +2.7 days per decade at this station.
| Measure | Median, all years | Earliest period (1913 to 1948) | Recent period (1971 to 2011) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 21 May | 24 May | 17 May | 7 days earlier | -0.6 days per decade |
| First autumn frost | 18 September | 15 September | 21 September | 6 days later | +2.1 days per decade |
| Growing days | 118 days | 113 days | 129 days | 16 days more | +2.7 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
71 years, 1913 to 2011A day with at least 39.4 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 88.0 mm (3.5 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 39.4 mm (1.6 in) | |
| 5 years | 52.5 mm (2.1 in) | |
| 10 years | 61.2 mm (2.4 in) | |
| 25 years | 72.0 mm (2.8 in) | |
| 50 years | 80.1 mm (3.2 in) | |
| 100 years | 88.0 mm (3.5 in) | Longer than the 71 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, 71 years of values from 1913 to 2011.
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: 91.4 mm (3.6 in) in 1964; 79.8 mm (3.1 in) in 1915; 71.4 mm (2.8 in) in 2011.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Carson, at 1994. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1994 ran 0.3 C (0.6 F) higher than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1994 | +0.3 | +0.6 | possible | 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).