Sterling Weather Records (USC00057950)
Record envelope, standing records and threshold days for Sterling (USC00057950), Colorado, United States, with 116 years of record.
Key Facts for Sterling
- Sterling (USC00057950) is a weather station in Colorado, United States at 40.63 latitude and -103.21 longitude, 1,211 m (3,974 ft) above sea level.
- The station reports from 1895 to 2010, 116 years of record.
- 1,464 records set at Sterling still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Sterling set a daily record low maximum temperature of 18.3 C (64.9 F) on 7 July 2010.
About the Station
- Location: Colorado, United States, 40.63 latitude, -103.21 longitude.
- Elevation: 1,211 m (3,974 ft).
- Period of record: 1895 to 2010, 116 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 | 21.7 C (71.1 F) | -33.9 C (-29.0 F) | n/a | n/a |
| Feb | 25.0 C (77.0 F) | -34.4 C (-29.9 F) | n/a | n/a |
| Mar | 30.0 C (86.0 F) | -29.4 C (-20.9 F) | n/a | n/a |
| Apr | 33.3 C (91.9 F) | -19.4 C (-2.9 F) | n/a | n/a |
| May | 38.9 C (102.0 F) | -5.6 C (21.9 F) | n/a | n/a |
| Jun | 43.3 C (109.9 F) | -1.7 C (28.9 F) | n/a | n/a |
| Jul | 42.2 C (108.0 F) | 1.7 C (35.1 F) | n/a | n/a |
| Aug | 40.6 C (105.1 F) | 0.0 C (32.0 F) | n/a | n/a |
| Sep | 39.4 C (102.9 F) | -10.0 C (14.0 F) | n/a | n/a |
| Oct | 36.1 C (97.0 F) | -21.1 C (-6.0 F) | n/a | n/a |
| Nov | 30.0 C (86.0 F) | -25.0 C (-13.0 F) | n/a | n/a |
| Dec | 23.3 C (73.9 F) | -37.2 C (-35.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1909 | 4 |
| 1910 | 36 |
| 1911 | 10 |
| 1912 | 14 |
| 1913 | 32 |
| 1914 | 8 |
| 1915 | 13 |
| 1916 | 29 |
| 1917 | 15 |
| 1918 | 33 |
| 1919 | 18 |
| 1920 | 10 |
| 1921 | 19 |
| 1922 | 12 |
| 1923 | 14 |
| 1924 | 28 |
| 1925 | 12 |
| 1926 | 3 |
| 1927 | 13 |
| 1928 | 7 |
| 1929 | 15 |
| 1930 | 11 |
| 1931 | 26 |
| 1932 | 21 |
| 1933 | 16 |
| 1934 | 17 |
| 1935 | 5 |
| 1936 | 18 |
| 1937 | 20 |
| 1938 | 10 |
| 1939 | 9 |
| 1940 | 11 |
| 1941 | 6 |
| 1942 | 15 |
| 1943 | 8 |
| 1944 | 8 |
| 1945 | 11 |
| 1946 | 15 |
| 1947 | 9 |
| 1948 | 15 |
| 1949 | 8 |
| 1950 | 23 |
| 1951 | 25 |
| 1952 | 19 |
| 1953 | 10 |
| 1954 | 16 |
| 1955 | 16 |
| 1956 | 10 |
| 1957 | 10 |
| 1958 | 7 |
| 1959 | 13 |
| 1960 | 16 |
| 1961 | 6 |
| 1962 | 25 |
| 1963 | 14 |
| 1964 | 15 |
| 1965 | 21 |
| 1966 | 11 |
| 1967 | 11 |
| 1968 | 9 |
| 1969 | 16 |
| 1970 | 8 |
| 1971 | 9 |
| 1972 | 18 |
| 1973 | 9 |
| 1974 | 9 |
| 1975 | 17 |
| 1976 | 16 |
| 1977 | 18 |
| 1978 | 6 |
| 1979 | 10 |
| 1980 | 15 |
| 1981 | 11 |
| 1982 | 11 |
| 1983 | 16 |
| 1984 | 8 |
| 1985 | 23 |
| 1986 | 9 |
| 1987 | 20 |
| 1988 | 12 |
| 1989 | 25 |
| 1990 | 27 |
| 1991 | 15 |
| 1992 | 7 |
| 1993 | 9 |
| 1994 | 13 |
| 1995 | 19 |
| 1996 | 12 |
| 1997 | 16 |
| 1998 | 13 |
| 1999 | 17 |
| 2000 | 10 |
| 2001 | 1 |
| 2002 | 16 |
| 2003 | 20 |
| 2004 | 17 |
| 2005 | 19 |
| 2006 | 20 |
| 2007 | 20 |
| 2008 | 12 |
| 2009 | 10 |
| 2010 | 4 |
All-Time Record Progression
7 new records| Date | Kind | Detail |
|---|---|---|
| 1954-06-24 | Record high maximum temperature | Record high maximum temperature 41.1 C (106.0 F) |
| 1968-08-15 | Record daily precipitation | Record daily precipitation 124.0 mm (4.9 in) |
| 1976-07-10 | Record high maximum temperature | Record high maximum temperature 41.7 C (107.1 F) |
| 1983-11-27 | Record daily snowfall | Record daily snowfall 45.7 cm (18.0 in) |
| 1989-12-22 | Record low minimum temperature | Record low minimum temperature -37.2 C (-35.0 F) |
| 1990-06-26 | Record high maximum temperature | Record high maximum temperature 42.8 C (109.0 F) |
| 1990-06-28 | Record high maximum temperature | Record high maximum temperature 43.3 C (109.9 F) |
Wettest Day of Each Month
Aug: 124.0 mm (4.9 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 30.7 mm (1.2 in) | 8 January 1939 |
| Feb | 19.3 mm (0.8 in) | 28 February 1918 |
| Mar | 44.5 mm (1.8 in) | 19 March 1984 |
| Apr | 54.4 mm (2.1 in) | 23 April 1929 |
| May | 78.0 mm (3.1 in) | 29 May 1975 |
| Jun | 79.0 mm (3.1 in) | 4 June 1985 |
| Jul | 65.0 mm (2.6 in) | 27 July 1963 |
| Aug | 124.0 mm (4.9 in) | 15 August 1968 |
| Sep | 49.3 mm (1.9 in) | 1 September 1992 |
| Oct | 48.5 mm (1.9 in) | 15 October 1916 |
| Nov | 47.5 mm (1.9 in) | 4 November 1922 |
| Dec | 27.2 mm (1.1 in) | 21 December 2006 |
Period of Record Coverage
1909 to 2010| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1909 | 51 | 14% | No |
| 1910 | 359 | 98% | Yes |
| 1911 | 358 | 98% | Yes |
| 1912 | 363 | 99% | Yes |
| 1913 | 357 | 98% | Yes |
| 1914 | 361 | 99% | Yes |
| 1915 | 365 | 100% | Yes |
| 1916 | 345 | 94% | Yes |
| 1917 | 362 | 99% | Yes |
| 1918 | 318 | 87% | No |
| 1919 | 359 | 98% | Yes |
| 1920 | 361 | 99% | Yes |
| 1921 | 349 | 96% | Yes |
| 1922 | 365 | 100% | Yes |
| 1923 | 361 | 99% | Yes |
| 1924 | 361 | 99% | Yes |
| 1925 | 360 | 99% | Yes |
| 1926 | 357 | 98% | Yes |
| 1927 | 356 | 98% | Yes |
| 1928 | 363 | 99% | Yes |
| 1929 | 346 | 95% | Yes |
| 1930 | 361 | 99% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 364 | 99% | Yes |
| 1933 | 365 | 100% | Yes |
| 1934 | 363 | 99% | Yes |
| 1935 | 360 | 99% | Yes |
| 1936 | 351 | 96% | Yes |
| 1937 | 350 | 96% | Yes |
| 1938 | 353 | 97% | Yes |
| 1939 | 355 | 97% | Yes |
| 1940 | 346 | 95% | Yes |
| 1941 | 349 | 96% | Yes |
| 1942 | 353 | 97% | Yes |
| 1943 | 348 | 95% | Yes |
| 1944 | 362 | 99% | Yes |
| 1945 | 359 | 98% | Yes |
| 1946 | 351 | 96% | Yes |
| 1947 | 352 | 96% | Yes |
| 1948 | 360 | 98% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 364 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 363 | 99% | Yes |
| 1954 | 364 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 360 | 99% | Yes |
| 1958 | 364 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 363 | 99% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 364 | 100% | Yes |
| 1964 | 361 | 99% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 359 | 98% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 349 | 96% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 355 | 97% | Yes |
| 1978 | 346 | 95% | Yes |
| 1979 | 350 | 96% | Yes |
| 1980 | 351 | 96% | Yes |
| 1981 | 361 | 99% | Yes |
| 1982 | 349 | 96% | Yes |
| 1983 | 358 | 98% | Yes |
| 1984 | 358 | 98% | Yes |
| 1985 | 318 | 87% | No |
| 1986 | 361 | 99% | Yes |
| 1987 | 363 | 99% | Yes |
| 1988 | 365 | 100% | Yes |
| 1989 | 358 | 98% | Yes |
| 1990 | 363 | 99% | Yes |
| 1991 | 362 | 99% | Yes |
| 1992 | 363 | 99% | Yes |
| 1993 | 358 | 98% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 328 | 90% | No |
| 1996 | 348 | 95% | Yes |
| 1997 | 363 | 99% | Yes |
| 1998 | 361 | 99% | Yes |
| 1999 | 362 | 99% | Yes |
| 2000 | 363 | 99% | Yes |
| 2001 | 360 | 99% | Yes |
| 2002 | 349 | 96% | Yes |
| 2003 | 297 | 81% | No |
| 2004 | 337 | 92% | Yes |
| 2005 | 303 | 83% | No |
| 2006 | 349 | 96% | Yes |
| 2007 | 350 | 96% | Yes |
| 2008 | 352 | 96% | Yes |
| 2009 | 349 | 96% | Yes |
| 2010 | 148 | 41% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 7 July 2010 | Sterling, US | daily low max | 18.3 C (64.9 F) | 2.3 C (4.1 F) | 49 years | 29 of 100 (Routine) |
| 28 May 2010 | Sterling, US | daily high min | 16.7 C (62.1 F) | 1.7 C (3.1 F) | 56 years | 31 of 100 (Routine) |
| 30 March 2010 | Sterling, US | monthly high max (Tie) | 30.0 C (86.0 F) | tie | 100 years | 12 of 100 (Routine) |
| 9 March 2010 | Sterling, US | daily high min | 2.8 C (37.0 F) | 1.1 C (2.0 F) | 20 years | 18 of 100 (Routine) |
| 8 March 2010 | Sterling, US | daily high min (Tie) | 1.7 C (35.1 F) | tie | 17 years | 3 of 100 (Routine) |
| 15 November 2009 | Sterling, US | daily rain | 7.4 mm (0.29 in) | 2.3 mm (0.09 in) | 24 years | 20 of 100 (Routine) |
| 15 November 2009 | Sterling, US | daily snowfall (Tie) | 10.2 cm (4.0 in) | tie | 24 years | 4 of 100 (Routine) |
| 30 October 2009 | Sterling, US | daily snowfall | 6.4 cm (2.5 in) | 1.8 cm (0.7 in) | 80 years | 37 of 100 (Notable) |
| 30 October 2009 | Sterling, US | daily snow depth | 7.6 cm (3.0 in) | 2.5 cm (1.0 in) | 18 years | 17 of 100 (Routine) |
| 12 October 2009 | Sterling, US | daily low max | -0.6 C (30.9 F) | 1.2 C (2.2 F) | 40 years | 23 of 100 (Routine) |
| 12 October 2009 | Sterling, US | daily snow depth | 10.2 cm (4.0 in) | 2.6 cm (1.0 in) | 23 years | 18 of 100 (Routine) |
| 11 October 2009 | Sterling, US | daily low max | -3.9 C (25.0 F) | 11.7 C (21.1 F) | 36 years | 36 of 100 (Notable) |
| 11 October 2009 | Sterling, US | daily snow depth (Tie) | 12.7 cm (5.0 in) | tie | 36 years | 5 of 100 (Routine) |
| 10 October 2009 | Sterling, US | daily snowfall | 15.2 cm (6.0 in) | 15.2 cm (6.0 in) | 99 years | 70 of 100 (Major) |
| 10 October 2009 | Sterling, US | daily snow depth | 15.2 cm (6.0 in) | 15.2 cm (6.0 in) | 60 years | 43 of 100 (Notable) |
| 10 October 2009 | Sterling, US | daily low min | -8.9 C (16.0 F) | 1.1 C (2.0 F) | 76 years | 35 of 100 (Notable) |
| 3 October 2009 | Sterling, US | daily low min (Tie) | -2.8 C (27.0 F) | tie | 50 years | 6 of 100 (Routine) |
| 23 September 2009 | Sterling, US | daily rain | 36.3 mm (1.4 in) | 10.6 mm (0.4 in) | 68 years | 44 of 100 (Notable) |
| 25 August 2009 | Sterling, US | daily high min (Tie) | 17.2 C (63.0 F) | tie | 74 years | 8 of 100 (Routine) |
| 17 August 2009 | Sterling, US | daily rain | 18.3 mm (0.7 in) | 5.3 mm (0.21 in) | 56 years | 20 of 100 (Routine) |
Climate Trend
85 complete years, 1910 to 2009| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1910 | 10.3 C | +0.79 C |
| 1911 | 9.5 C | -0.03 C |
| 1912 | 7.8 C | -1.68 C |
| 1913 | 7.7 C | -1.74 C |
| 1914 | 9.5 C | -0.02 C |
| 1915 | 8.7 C | -0.77 C |
| 1916 | 8.5 C | -1.01 C |
| 1917 | 9.4 C | -0.10 C |
| 1919 | 8.3 C | -1.20 C |
| 1920 | 8.6 C | -0.93 C |
| 1921 | 9.9 C | +0.41 C |
| 1922 | 8.6 C | -0.93 C |
| 1923 | 8.1 C | -1.41 C |
| 1924 | 7.1 C | -2.40 C |
| 1926 | 9.4 C | -0.04 C |
| 1927 | 9.3 C | -0.22 C |
| 1928 | 8.8 C | -0.69 C |
| 1930 | 9.5 C | +0.00 C |
| 1931 | 11.0 C | +1.50 C |
| 1932 | 9.4 C | -0.11 C |
| 1933 | 10.6 C | +1.15 C |
| 1934 | 11.7 C | +2.20 C |
| 1935 | 9.9 C | +0.37 C |
| 1936 | 9.3 C | -0.21 C |
| 1937 | 8.3 C | -1.20 C |
| 1938 | 10.0 C | +0.49 C |
| 1939 | 9.8 C | +0.31 C |
| 1940 | 9.6 C | +0.15 C |
| 1941 | 9.7 C | +0.20 C |
| 1942 | 8.4 C | -1.10 C |
| 1943 | 9.9 C | +0.39 C |
| 1944 | 8.6 C | -0.84 C |
| 1945 | 8.6 C | -0.92 C |
| 1947 | 9.2 C | -0.27 C |
| 1948 | 9.0 C | -0.45 C |
| 1949 | 8.6 C | -0.88 C |
| 1950 | 9.0 C | -0.48 C |
| 1951 | 8.1 C | -1.38 C |
| 1952 | 9.2 C | -0.26 C |
| 1953 | 10.4 C | +0.94 C |
| 1954 | 10.7 C | +1.22 C |
| 1955 | 9.0 C | -0.53 C |
| 1956 | 9.1 C | -0.36 C |
| 1957 | 9.1 C | -0.42 C |
| 1958 | 9.3 C | -0.17 C |
| 1959 | 9.1 C | -0.35 C |
| 1960 | 8.8 C | -0.72 C |
| 1961 | 8.8 C | -0.66 C |
| 1962 | 9.2 C | -0.27 C |
| 1963 | 10.3 C | +0.84 C |
| 1964 | 9.2 C | -0.28 C |
| 1965 | 8.8 C | -0.73 C |
| 1966 | 8.8 C | -0.70 C |
| 1967 | 9.3 C | -0.20 C |
| 1968 | 9.1 C | -0.35 C |
| 1969 | 9.7 C | +0.18 C |
| 1970 | 9.5 C | +0.05 C |
| 1971 | 9.2 C | -0.33 C |
| 1972 | 8.8 C | -0.71 C |
| 1973 | 8.9 C | -0.54 C |
| 1974 | 9.6 C | +0.15 C |
| 1976 | 10.2 C | +0.74 C |
| 1977 | 10.8 C | +1.29 C |
| 1979 | 8.6 C | -0.89 C |
| 1980 | 9.6 C | +0.08 C |
| 1981 | 10.0 C | +0.52 C |
| 1984 | 9.0 C | -0.45 C |
| 1986 | 10.1 C | +0.64 C |
| 1987 | 10.8 C | +1.31 C |
| 1988 | 10.4 C | +0.91 C |
| 1989 | 10.2 C | +0.68 C |
| 1990 | 10.3 C | +0.81 C |
| 1991 | 10.8 C | +1.35 C |
| 1992 | 10.1 C | +0.59 C |
| 1993 | 8.9 C | -0.56 C |
| 1994 | 11.4 C | +1.88 C |
| 1996 | 9.9 C | +0.42 C |
| 1997 | 10.0 C | +0.49 C |
| 1998 | 10.7 C | +1.25 C |
| 2000 | 10.8 C | +1.36 C |
| 2002 | 10.5 C | +1.06 C |
| 2006 | 11.4 C | +1.91 C |
| 2007 | 10.4 C | +0.91 C |
| 2008 | 10.0 C | +0.48 C |
| 2009 | 9.9 C | +0.41 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.2) per decade over 1910 to 2009. In Fahrenheit: 0.3 F (0.2 to 0.4) per decade. The slope is a straight line fitted to 85 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.2 to 0.4) per decade | 1910 to 2009 | 85 | Rise |
| Mean daily maximum | 0.08 C (-0.01 to 0.17) per decade | 0.14 F (-0.01 to 0.30) per decade | 1910 to 2009 | 85 | Not clearly different from zero |
| Mean daily minimum | 0.2 C (0.2 to 0.3) per decade | 0.4 F (0.3 to 0.5) per decade | 1910 to 2009 | 85 | 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
1895 to 2010| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 43.3 C (109.9 F) | 1990 | 38.9 C (102.0 F) | 102 |
| Coldest night (TNn) | -37.2 C (-35.0 F) | 1989 | -26.7 C (-16.1 F) | 102 |
| Wettest day (Rx1day) | 124.0 mm (4.9 in) | 1968 | 39.0 mm (1.5 in) | 104 |
| Wettest five days (Rx5day) | 134.7 mm (5.3 in) | 1968 | 60.2 mm (2.4 in) | 104 |
| Longest dry spell (CDD) | 78 days | 1999 | 40 days | 104 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1895 | n/a |
| 1896 | n/a |
| 1909 | 18.3 C (64.9 F) |
| 1910 | 37.8 C (100.0 F) |
| 1911 | 36.7 C (98.1 F) |
| 1912 | 36.1 C (97.0 F) |
| 1913 | 37.8 C (100.0 F) |
| 1914 | 37.8 C (100.0 F) |
| 1915 | 35.0 C (95.0 F) |
| 1916 | 37.8 C (100.0 F) |
| 1917 | 39.4 C (102.9 F) |
| 1918 | 37.2 C (99.0 F) |
| 1919 | 38.9 C (102.0 F) |
| 1920 | 36.7 C (98.1 F) |
| 1921 | 36.1 C (97.0 F) |
| 1922 | 38.9 C (102.0 F) |
| 1923 | 35.6 C (96.1 F) |
| 1924 | 38.3 C (100.9 F) |
| 1925 | 37.8 C (100.0 F) |
| 1926 | 37.8 C (100.0 F) |
| 1927 | 36.7 C (98.1 F) |
| 1928 | 35.6 C (96.1 F) |
| 1929 | 37.2 C (99.0 F) |
| 1930 | 37.2 C (99.0 F) |
| 1931 | 40.0 C (104.0 F) |
| 1932 | 37.8 C (100.0 F) |
| 1933 | 39.4 C (102.9 F) |
| 1934 | 40.6 C (105.1 F) |
| 1935 | 38.9 C (102.0 F) |
| 1936 | 40.0 C (104.0 F) |
| 1937 | 40.0 C (104.0 F) |
| 1938 | 40.0 C (104.0 F) |
| 1939 | 39.4 C (102.9 F) |
| 1940 | 39.4 C (102.9 F) |
| 1941 | 34.4 C (93.9 F) |
| 1942 | 36.7 C (98.1 F) |
| 1943 | 36.7 C (98.1 F) |
| 1944 | 37.2 C (99.0 F) |
| 1945 | 35.0 C (95.0 F) |
| 1946 | 37.8 C (100.0 F) |
| 1947 | 38.3 C (100.9 F) |
| 1948 | 37.8 C (100.0 F) |
| 1949 | 37.2 C (99.0 F) |
| 1950 | 35.6 C (96.1 F) |
| 1951 | 35.6 C (96.1 F) |
| 1952 | 39.4 C (102.9 F) |
| 1953 | 38.9 C (102.0 F) |
| 1954 | 41.1 C (106.0 F) |
| 1955 | 38.3 C (100.9 F) |
| 1956 | 38.3 C (100.9 F) |
| 1957 | 36.7 C (98.1 F) |
| 1958 | 37.8 C (100.0 F) |
| 1959 | 38.9 C (102.0 F) |
| 1960 | 40.6 C (105.1 F) |
| 1961 | 38.9 C (102.0 F) |
| 1962 | 38.3 C (100.9 F) |
| 1963 | 40.6 C (105.1 F) |
| 1964 | 40.6 C (105.1 F) |
| 1965 | 36.7 C (98.1 F) |
| 1966 | 37.2 C (99.0 F) |
| 1967 | 38.9 C (102.0 F) |
| 1968 | 41.1 C (106.0 F) |
| 1969 | 39.4 C (102.9 F) |
| 1970 | 40.0 C (104.0 F) |
| 1971 | 38.3 C (100.9 F) |
| 1972 | 37.8 C (100.0 F) |
| 1973 | 40.0 C (104.0 F) |
| 1974 | 40.0 C (104.0 F) |
| 1975 | 38.3 C (100.9 F) |
| 1976 | 41.7 C (107.1 F) |
| 1977 | 40.6 C (105.1 F) |
| 1978 | 38.9 C (102.0 F) |
| 1979 | 39.4 C (102.9 F) |
| 1980 | 40.0 C (104.0 F) |
| 1981 | 38.9 C (102.0 F) |
| 1982 | 40.6 C (105.1 F) |
| 1983 | 36.1 C (97.0 F) |
| 1984 | 36.7 C (98.1 F) |
| 1985 | 39.4 C (102.9 F) |
| 1986 | 37.2 C (99.0 F) |
| 1987 | 40.6 C (105.1 F) |
| 1988 | 40.6 C (105.1 F) |
| 1989 | 41.1 C (106.0 F) |
| 1990 | 43.3 C (109.9 F) |
| 1991 | 40.0 C (104.0 F) |
| 1992 | 37.8 C (100.0 F) |
| 1993 | 39.4 C (102.9 F) |
| 1994 | 40.0 C (104.0 F) |
| 1995 | 41.1 C (106.0 F) |
| 1996 | 38.9 C (102.0 F) |
| 1997 | 38.9 C (102.0 F) |
| 1998 | 40.6 C (105.1 F) |
| 1999 | 38.9 C (102.0 F) |
| 2000 | 40.0 C (104.0 F) |
| 2001 | 40.0 C (104.0 F) |
| 2002 | 41.1 C (106.0 F) |
| 2003 | 41.7 C (107.1 F) |
| 2004 | 39.4 C (102.9 F) |
| 2005 | 41.1 C (106.0 F) |
| 2006 | 41.7 C (107.1 F) |
| 2007 | 39.4 C (102.9 F) |
| 2008 | 39.4 C (102.9 F) |
| 2009 | 37.2 C (99.0 F) |
| 2010 | 41.1 C (106.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1895 | n/a |
| 1896 | n/a |
| 1909 | -26.7 C (-16.1 F) |
| 1910 | -23.3 C (-9.9 F) |
| 1911 | -28.3 C (-18.9 F) |
| 1912 | -32.2 C (-26.0 F) |
| 1913 | -30.0 C (-22.0 F) |
| 1914 | -27.8 C (-18.0 F) |
| 1915 | -25.0 C (-13.0 F) |
| 1916 | -28.9 C (-20.0 F) |
| 1917 | -28.9 C (-20.0 F) |
| 1918 | -29.4 C (-20.9 F) |
| 1919 | -36.1 C (-33.0 F) |
| 1920 | -26.7 C (-16.1 F) |
| 1921 | -22.2 C (-8.0 F) |
| 1922 | -28.9 C (-20.0 F) |
| 1923 | -31.7 C (-25.1 F) |
| 1924 | -35.6 C (-32.1 F) |
| 1925 | -25.0 C (-13.0 F) |
| 1926 | -26.1 C (-15.0 F) |
| 1927 | -27.8 C (-18.0 F) |
| 1928 | -27.2 C (-17.0 F) |
| 1929 | -28.9 C (-20.0 F) |
| 1930 | -33.9 C (-29.0 F) |
| 1931 | -19.4 C (-2.9 F) |
| 1932 | -31.7 C (-25.1 F) |
| 1933 | -31.7 C (-25.1 F) |
| 1934 | -25.6 C (-14.1 F) |
| 1935 | -29.4 C (-20.9 F) |
| 1936 | -33.9 C (-29.0 F) |
| 1937 | -31.1 C (-24.0 F) |
| 1938 | -22.2 C (-8.0 F) |
| 1939 | -23.9 C (-11.0 F) |
| 1940 | -29.4 C (-20.9 F) |
| 1941 | -22.8 C (-9.0 F) |
| 1942 | -33.9 C (-29.0 F) |
| 1943 | -28.3 C (-18.9 F) |
| 1944 | -20.6 C (-5.1 F) |
| 1945 | -22.8 C (-9.0 F) |
| 1946 | -22.2 C (-8.0 F) |
| 1947 | -21.1 C (-6.0 F) |
| 1948 | -31.1 C (-24.0 F) |
| 1949 | -27.2 C (-17.0 F) |
| 1950 | -29.4 C (-20.9 F) |
| 1951 | -33.9 C (-29.0 F) |
| 1952 | -23.3 C (-9.9 F) |
| 1953 | -20.6 C (-5.1 F) |
| 1954 | -23.3 C (-9.9 F) |
| 1955 | -25.0 C (-13.0 F) |
| 1956 | -25.0 C (-13.0 F) |
| 1957 | -24.4 C (-11.9 F) |
| 1958 | -21.1 C (-6.0 F) |
| 1959 | -28.9 C (-20.0 F) |
| 1960 | -29.4 C (-20.9 F) |
| 1961 | -25.6 C (-14.1 F) |
| 1962 | -29.4 C (-20.9 F) |
| 1963 | -28.9 C (-20.0 F) |
| 1964 | -25.6 C (-14.1 F) |
| 1965 | -23.9 C (-11.0 F) |
| 1966 | -30.0 C (-22.0 F) |
| 1967 | -24.4 C (-11.9 F) |
| 1968 | -27.2 C (-17.0 F) |
| 1969 | -24.4 C (-11.9 F) |
| 1970 | -21.1 C (-6.0 F) |
| 1971 | -27.8 C (-18.0 F) |
| 1972 | -28.9 C (-20.0 F) |
| 1973 | -22.2 C (-8.0 F) |
| 1974 | -27.2 C (-17.0 F) |
| 1975 | -21.1 C (-6.0 F) |
| 1976 | -23.3 C (-9.9 F) |
| 1977 | -25.0 C (-13.0 F) |
| 1978 | -27.8 C (-18.0 F) |
| 1979 | -27.2 C (-17.0 F) |
| 1980 | -23.9 C (-11.0 F) |
| 1981 | -27.2 C (-17.0 F) |
| 1982 | -34.4 C (-29.9 F) |
| 1983 | -31.7 C (-25.1 F) |
| 1984 | -32.2 C (-26.0 F) |
| 1985 | -28.9 C (-20.0 F) |
| 1986 | -26.1 C (-15.0 F) |
| 1987 | -23.3 C (-9.9 F) |
| 1988 | -27.2 C (-17.0 F) |
| 1989 | -37.2 C (-35.0 F) |
| 1990 | -31.1 C (-24.0 F) |
| 1991 | -19.4 C (-2.9 F) |
| 1992 | -22.8 C (-9.0 F) |
| 1993 | -26.7 C (-16.1 F) |
| 1994 | -26.1 C (-15.0 F) |
| 1995 | -25.6 C (-14.1 F) |
| 1996 | -28.9 C (-20.0 F) |
| 1997 | -25.6 C (-14.1 F) |
| 1998 | -30.6 C (-23.1 F) |
| 1999 | -13.3 C (8.1 F) |
| 2000 | -22.2 C (-8.0 F) |
| 2001 | -21.1 C (-6.0 F) |
| 2002 | -26.1 C (-15.0 F) |
| 2003 | -21.7 C (-7.1 F) |
| 2004 | -25.0 C (-13.0 F) |
| 2005 | -25.6 C (-14.1 F) |
| 2006 | -24.4 C (-11.9 F) |
| 2007 | -24.4 C (-11.9 F) |
| 2008 | -26.1 C (-15.0 F) |
| 2009 | -27.2 C (-17.0 F) |
| 2010 | -25.0 C (-13.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1895 | 29.0 mm (1.1 in) |
| 1896 | 0.0 mm (0.00 in) |
| 1909 | 9.9 mm (0.39 in) |
| 1910 | 33.8 mm (1.3 in) |
| 1911 | 43.2 mm (1.7 in) |
| 1912 | 37.6 mm (1.5 in) |
| 1913 | 54.9 mm (2.2 in) |
| 1914 | 20.3 mm (0.8 in) |
| 1915 | 38.1 mm (1.5 in) |
| 1916 | 48.5 mm (1.9 in) |
| 1917 | 49.5 mm (1.9 in) |
| 1918 | 62.0 mm (2.4 in) |
| 1919 | 31.8 mm (1.3 in) |
| 1920 | 27.7 mm (1.1 in) |
| 1921 | 54.6 mm (2.1 in) |
| 1922 | 51.8 mm (2.0 in) |
| 1923 | 43.2 mm (1.7 in) |
| 1924 | 39.1 mm (1.5 in) |
| 1925 | 35.1 mm (1.4 in) |
| 1926 | 36.1 mm (1.4 in) |
| 1927 | 46.2 mm (1.8 in) |
| 1928 | 53.8 mm (2.1 in) |
| 1929 | 54.4 mm (2.1 in) |
| 1930 | 50.8 mm (2.0 in) |
| 1931 | 24.4 mm (1.0 in) |
| 1932 | 22.1 mm (0.9 in) |
| 1933 | 49.5 mm (1.9 in) |
| 1934 | 55.4 mm (2.2 in) |
| 1935 | 30.5 mm (1.2 in) |
| 1936 | 71.1 mm (2.8 in) |
| 1937 | 23.6 mm (0.9 in) |
| 1938 | 48.5 mm (1.9 in) |
| 1939 | 30.7 mm (1.2 in) |
| 1940 | 71.4 mm (2.8 in) |
| 1941 | 30.2 mm (1.2 in) |
| 1942 | 46.0 mm (1.8 in) |
| 1943 | 31.8 mm (1.3 in) |
| 1944 | 30.0 mm (1.2 in) |
| 1945 | 26.9 mm (1.1 in) |
| 1946 | 39.4 mm (1.6 in) |
| 1947 | 30.2 mm (1.2 in) |
| 1948 | 28.2 mm (1.1 in) |
| 1949 | 59.4 mm (2.3 in) |
| 1950 | 22.1 mm (0.9 in) |
| 1951 | 31.0 mm (1.2 in) |
| 1952 | 24.4 mm (1.0 in) |
| 1953 | 34.0 mm (1.3 in) |
| 1954 | 24.4 mm (1.0 in) |
| 1955 | 47.0 mm (1.9 in) |
| 1956 | 52.1 mm (2.1 in) |
| 1957 | 29.7 mm (1.2 in) |
| 1958 | 38.9 mm (1.5 in) |
| 1959 | 33.3 mm (1.3 in) |
| 1960 | 62.0 mm (2.4 in) |
| 1961 | 34.8 mm (1.4 in) |
| 1962 | 50.8 mm (2.0 in) |
| 1963 | 65.0 mm (2.6 in) |
| 1964 | 21.1 mm (0.8 in) |
| 1965 | 40.6 mm (1.6 in) |
| 1966 | 48.3 mm (1.9 in) |
| 1967 | 45.7 mm (1.8 in) |
| 1968 | 124.0 mm (4.9 in) |
| 1969 | 34.8 mm (1.4 in) |
| 1970 | 31.2 mm (1.2 in) |
| 1971 | 33.5 mm (1.3 in) |
| 1972 | 39.9 mm (1.6 in) |
| 1973 | 38.9 mm (1.5 in) |
| 1974 | 52.3 mm (2.1 in) |
| 1975 | 78.0 mm (3.1 in) |
| 1976 | 38.9 mm (1.5 in) |
| 1977 | 39.4 mm (1.6 in) |
| 1978 | 49.0 mm (1.9 in) |
| 1979 | 41.7 mm (1.6 in) |
| 1980 | 53.3 mm (2.1 in) |
| 1981 | 49.0 mm (1.9 in) |
| 1982 | 34.8 mm (1.4 in) |
| 1983 | 33.8 mm (1.3 in) |
| 1984 | 44.5 mm (1.8 in) |
| 1985 | 79.0 mm (3.1 in) |
| 1986 | 38.1 mm (1.5 in) |
| 1987 | 45.0 mm (1.8 in) |
| 1988 | 50.8 mm (2.0 in) |
| 1989 | 39.9 mm (1.6 in) |
| 1990 | 48.3 mm (1.9 in) |
| 1991 | 20.6 mm (0.8 in) |
| 1992 | 49.3 mm (1.9 in) |
| 1993 | 33.5 mm (1.3 in) |
| 1994 | 24.6 mm (1.0 in) |
| 1995 | 44.5 mm (1.8 in) |
| 1996 | 44.2 mm (1.7 in) |
| 1997 | 61.0 mm (2.4 in) |
| 1998 | 53.3 mm (2.1 in) |
| 1999 | 48.8 mm (1.9 in) |
| 2000 | 35.6 mm (1.4 in) |
| 2001 | 29.2 mm (1.1 in) |
| 2002 | 22.9 mm (0.9 in) |
| 2003 | 38.1 mm (1.5 in) |
| 2004 | 30.5 mm (1.2 in) |
| 2005 | 29.2 mm (1.1 in) |
| 2006 | 36.8 mm (1.4 in) |
| 2007 | 46.2 mm (1.8 in) |
| 2008 | 54.6 mm (2.1 in) |
| 2009 | 38.1 mm (1.5 in) |
| 2010 | 32.5 mm (1.3 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1895 | 29.0 mm (1.1 in) |
| 1896 | 0.0 mm (0.00 in) |
| 1909 | 4.9 mm (0.19 in) |
| 1910 | 34.1 mm (1.3 in) |
| 1911 | 48.2 mm (1.9 in) |
| 1912 | 69.4 mm (2.7 in) |
| 1913 | 59.0 mm (2.3 in) |
| 1914 | 39.6 mm (1.6 in) |
| 1915 | 74.2 mm (2.9 in) |
| 1916 | 52.3 mm (2.1 in) |
| 1917 | 61.8 mm (2.4 in) |
| 1918 | 79.5 mm (3.1 in) |
| 1919 | 36.9 mm (1.5 in) |
| 1920 | 46.7 mm (1.8 in) |
| 1921 | 24.6 mm (1.0 in) |
| 1922 | 133.1 mm (5.2 in) |
| 1923 | 46.0 mm (1.8 in) |
| 1924 | 70.9 mm (2.8 in) |
| 1925 | 37.2 mm (1.5 in) |
| 1926 | 46.5 mm (1.8 in) |
| 1927 | 67.8 mm (2.7 in) |
| 1928 | 74.3 mm (2.9 in) |
| 1929 | 101.2 mm (4.0 in) |
| 1930 | 73.7 mm (2.9 in) |
| 1931 | 36.6 mm (1.4 in) |
| 1932 | 45.7 mm (1.8 in) |
| 1933 | 57.8 mm (2.3 in) |
| 1934 | 61.0 mm (2.4 in) |
| 1935 | 71.2 mm (2.8 in) |
| 1936 | 102.9 mm (4.1 in) |
| 1937 | 43.2 mm (1.7 in) |
| 1938 | 67.5 mm (2.7 in) |
| 1939 | 33.0 mm (1.3 in) |
| 1940 | 85.9 mm (3.4 in) |
| 1941 | 56.5 mm (2.2 in) |
| 1942 | 114.1 mm (4.5 in) |
| 1943 | 58.0 mm (2.3 in) |
| 1944 | 33.0 mm (1.3 in) |
| 1945 | 60.7 mm (2.4 in) |
| 1946 | 45.5 mm (1.8 in) |
| 1947 | 42.9 mm (1.7 in) |
| 1948 | 48.5 mm (1.9 in) |
| 1949 | 83.8 mm (3.3 in) |
| 1950 | 32.0 mm (1.3 in) |
| 1951 | 41.2 mm (1.6 in) |
| 1952 | 50.0 mm (2.0 in) |
| 1953 | 61.0 mm (2.4 in) |
| 1954 | 28.0 mm (1.1 in) |
| 1955 | 70.3 mm (2.8 in) |
| 1956 | 77.8 mm (3.1 in) |
| 1957 | 75.7 mm (3.0 in) |
| 1958 | 59.9 mm (2.4 in) |
| 1959 | 60.5 mm (2.4 in) |
| 1960 | 88.2 mm (3.5 in) |
| 1961 | 46.5 mm (1.8 in) |
| 1962 | 76.1 mm (3.0 in) |
| 1963 | 71.6 mm (2.8 in) |
| 1964 | 44.7 mm (1.8 in) |
| 1965 | 47.6 mm (1.9 in) |
| 1966 | 62.3 mm (2.5 in) |
| 1967 | 72.7 mm (2.9 in) |
| 1968 | 134.7 mm (5.3 in) |
| 1969 | 69.4 mm (2.7 in) |
| 1970 | 47.7 mm (1.9 in) |
| 1971 | 48.5 mm (1.9 in) |
| 1972 | 47.0 mm (1.9 in) |
| 1973 | 58.7 mm (2.3 in) |
| 1974 | 58.4 mm (2.3 in) |
| 1975 | 92.8 mm (3.7 in) |
| 1976 | 66.0 mm (2.6 in) |
| 1977 | 63.2 mm (2.5 in) |
| 1978 | 50.3 mm (2.0 in) |
| 1979 | 76.7 mm (3.0 in) |
| 1980 | 71.1 mm (2.8 in) |
| 1981 | 94.0 mm (3.7 in) |
| 1982 | 56.4 mm (2.2 in) |
| 1983 | 48.5 mm (1.9 in) |
| 1984 | 82.6 mm (3.3 in) |
| 1985 | 80.3 mm (3.2 in) |
| 1986 | 62.8 mm (2.5 in) |
| 1987 | 66.1 mm (2.6 in) |
| 1988 | 104.6 mm (4.1 in) |
| 1989 | 68.3 mm (2.7 in) |
| 1990 | 48.3 mm (1.9 in) |
| 1991 | 31.0 mm (1.2 in) |
| 1992 | 102.9 mm (4.1 in) |
| 1993 | 33.8 mm (1.3 in) |
| 1994 | 62.4 mm (2.5 in) |
| 1995 | 85.2 mm (3.4 in) |
| 1996 | 50.7 mm (2.0 in) |
| 1997 | 74.9 mm (2.9 in) |
| 1998 | 95.3 mm (3.8 in) |
| 1999 | 78.8 mm (3.1 in) |
| 2000 | 38.1 mm (1.5 in) |
| 2001 | 40.7 mm (1.6 in) |
| 2002 | 28.4 mm (1.1 in) |
| 2003 | 58.4 mm (2.3 in) |
| 2004 | 31.7 mm (1.2 in) |
| 2005 | 52.1 mm (2.1 in) |
| 2006 | 37.1 mm (1.5 in) |
| 2007 | 83.1 mm (3.3 in) |
| 2008 | 70.4 mm (2.8 in) |
| 2009 | 63.2 mm (2.5 in) |
| 2010 | 66.8 mm (2.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1895 | 39 days |
| 1896 | 29 days |
| 1909 | 20 days |
| 1910 | 50 days |
| 1911 | 38 days |
| 1912 | 28 days |
| 1913 | 40 days |
| 1914 | 52 days |
| 1915 | 60 days |
| 1916 | 32 days |
| 1917 | 39 days |
| 1918 | 30 days |
| 1919 | 30 days |
| 1920 | 21 days |
| 1921 | 22 days |
| 1922 | 50 days |
| 1923 | 38 days |
| 1924 | 35 days |
| 1925 | 71 days |
| 1926 | 27 days |
| 1927 | 41 days |
| 1928 | 40 days |
| 1929 | 39 days |
| 1930 | 42 days |
| 1931 | 51 days |
| 1932 | 40 days |
| 1933 | 38 days |
| 1934 | 66 days |
| 1935 | 48 days |
| 1936 | 48 days |
| 1937 | 40 days |
| 1938 | 49 days |
| 1939 | 74 days |
| 1940 | 34 days |
| 1941 | 54 days |
| 1942 | 47 days |
| 1943 | 54 days |
| 1944 | 34 days |
| 1945 | 33 days |
| 1946 | 51 days |
| 1947 | 53 days |
| 1948 | 32 days |
| 1949 | 62 days |
| 1950 | 37 days |
| 1951 | 31 days |
| 1952 | 29 days |
| 1953 | 45 days |
| 1954 | 75 days |
| 1955 | 45 days |
| 1956 | 55 days |
| 1957 | 64 days |
| 1958 | 32 days |
| 1959 | 61 days |
| 1960 | 45 days |
| 1961 | 61 days |
| 1962 | 70 days |
| 1963 | 36 days |
| 1964 | 61 days |
| 1965 | 52 days |
| 1966 | 57 days |
| 1967 | 37 days |
| 1968 | 36 days |
| 1969 | 34 days |
| 1970 | 48 days |
| 1971 | 38 days |
| 1972 | 42 days |
| 1973 | 34 days |
| 1974 | 50 days |
| 1975 | 34 days |
| 1976 | 50 days |
| 1977 | 57 days |
| 1978 | 52 days |
| 1979 | 36 days |
| 1980 | 61 days |
| 1981 | 36 days |
| 1982 | 24 days |
| 1983 | 63 days |
| 1984 | 34 days |
| 1985 | 19 days |
| 1986 | 27 days |
| 1987 | 26 days |
| 1988 | 57 days |
| 1989 | 54 days |
| 1990 | 45 days |
| 1991 | 31 days |
| 1992 | 41 days |
| 1993 | 24 days |
| 1994 | 34 days |
| 1995 | 30 days |
| 1996 | 43 days |
| 1997 | 59 days |
| 1998 | 40 days |
| 1999 | 78 days |
| 2000 | 27 days |
| 2001 | 70 days |
| 2002 | 55 days |
| 2003 | 37 days |
| 2004 | 28 days |
| 2005 | 41 days |
| 2006 | 35 days |
| 2007 | 30 days |
| 2008 | 35 days |
| 2009 | 23 days |
| 2010 | 36 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
85 years with a frostAcross 85 years with a frost, the median last spring frost at Sterling falls on 10 May and the median first autumn frost on 30 September, which leaves a median of 142 days between them.
In 1969 to 2009 the median growing season was 152 days. That is 13 days more than in 1910 to 1942.
Fitted over all years, the growing season changes by +2.6 days per decade at this station.
| Measure | Median, all years | Earliest period (1910 to 1942) | Recent period (1969 to 2009) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 10 May | 13 May | 4 May | 9 days earlier | -1.1 days per decade |
| First autumn frost | 30 September | 26 September | 4 October | 8 days later | +1.5 days per decade |
| Growing days | 142 days | 139 days | 152 days | 13 days more | +2.6 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
90 years, 1910 to 2009A day with at least 39.3 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 87.0 mm (3.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 39.3 mm (1.5 in) | |
| 5 years | 51.9 mm (2.0 in) | |
| 10 years | 60.3 mm (2.4 in) | |
| 25 years | 71.0 mm (2.8 in) | |
| 50 years | 79.0 mm (3.1 in) | |
| 100 years | 87.0 mm (3.4 in) | Longer than the 90 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, 90 years of values from 1910 to 2009.
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: 124.0 mm (4.9 in) in 1968; 78.0 mm (3.1 in) in 1975; 71.4 mm (2.8 in) in 1940.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Sterling, at 1987. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1987 ran 0.4 C (0.8 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1987 | +0.4 | +0.8 | 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).