Chester 1 SE Weather Records (USC00381633)
Record envelope, standing records and threshold days for Chester 1 SE (USC00381633), South Carolina, United States, with 105 years of record.
Key Facts for Chester 1 SE
- Chester 1 SE (USC00381633) is a weather station in South Carolina, United States at 34.68 latitude and -81.20 longitude, 171 m (560 ft) above sea level.
- The station reports from 1922 to 2026, 105 years of record.
- 1,464 records set at Chester 1 SE still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Chester 1 SE set a daily record high maximum temperature of 36.1 C (97.0 F) on 12 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: South Carolina, United States, 34.68 latitude, -81.20 longitude.
- Elevation: 171 m (560 ft).
- Period of record: 1922 to 2026, 105 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
9 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 27.8 C (82.0 F) | -19.4 C (-2.9 F) | 24.4 C (75.9 F) | -13.3 C (8.1 F) |
| Feb | 28.3 C (82.9 F) | -18.3 C (-0.9 F) | 27.8 C (82.0 F) | -14.4 C (6.1 F) |
| Mar | 31.1 C (88.0 F) | -15.6 C (3.9 F) | 30.6 C (87.1 F) | -2.2 C (28.0 F) |
| Apr | 35.6 C (96.1 F) | -6.1 C (21.0 F) | 31.7 C (89.1 F) | 1.1 C (34.0 F) |
| May | 38.9 C (102.0 F) | -2.2 C (28.0 F) | 32.8 C (91.0 F) | 2.2 C (36.0 F) |
| Jun | 40.6 C (105.1 F) | 3.3 C (37.9 F) | 34.4 C (93.9 F) | 9.4 C (48.9 F) |
| Jul | 41.1 C (106.0 F) | 10.0 C (50.0 F) | 36.7 C (98.1 F) | 16.7 C (62.1 F) |
| Aug | 41.1 C (106.0 F) | 8.3 C (46.9 F) | 36.1 C (97.0 F) | 16.1 C (61.0 F) |
| Sep | 40.6 C (105.1 F) | 2.8 C (37.0 F) | 36.7 C (98.1 F) | 5.6 C (42.1 F) |
| Oct | 37.8 C (100.0 F) | -8.9 C (16.0 F) | 31.7 C (89.1 F) | 8.9 C (48.0 F) |
| Nov | 32.2 C (90.0 F) | -12.8 C (9.0 F) | n/a | n/a |
| Dec | 26.7 C (80.1 F) | -20.6 C (-5.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1923 | 10 |
| 1924 | 9 |
| 1925 | 40 |
| 1926 | 22 |
| 1927 | 4 |
| 1928 | 4 |
| 1929 | 2 |
| 1930 | 18 |
| 1934 | 2 |
| 1935 | 24 |
| 1936 | 26 |
| 1937 | 1 |
| 1938 | 14 |
| 1939 | 14 |
| 1940 | 21 |
| 1941 | 23 |
| 1942 | 9 |
| 1943 | 32 |
| 1944 | 16 |
| 1945 | 18 |
| 1946 | 11 |
| 1947 | 10 |
| 1948 | 10 |
| 1949 | 11 |
| 1950 | 29 |
| 1951 | 21 |
| 1952 | 24 |
| 1953 | 8 |
| 1954 | 43 |
| 1955 | 21 |
| 1956 | 18 |
| 1957 | 20 |
| 1958 | 16 |
| 1959 | 16 |
| 1960 | 25 |
| 1961 | 34 |
| 1962 | 24 |
| 1963 | 21 |
| 1964 | 26 |
| 1965 | 22 |
| 1966 | 16 |
| 1967 | 15 |
| 1968 | 14 |
| 1969 | 10 |
| 1970 | 20 |
| 1971 | 13 |
| 1972 | 10 |
| 1973 | 8 |
| 1974 | 21 |
| 1975 | 8 |
| 1976 | 19 |
| 1977 | 16 |
| 1978 | 5 |
| 1979 | 8 |
| 1980 | 15 |
| 1981 | 19 |
| 1982 | 12 |
| 1983 | 16 |
| 1984 | 17 |
| 1985 | 18 |
| 1986 | 17 |
| 1987 | 5 |
| 1988 | 16 |
| 1989 | 24 |
| 1990 | 9 |
| 1991 | 15 |
| 1992 | 9 |
| 1993 | 23 |
| 1994 | 11 |
| 1995 | 12 |
| 1996 | 15 |
| 1997 | 21 |
| 1998 | 7 |
| 1999 | 17 |
| 2000 | 19 |
| 2001 | 11 |
| 2002 | 15 |
| 2003 | 7 |
| 2004 | 8 |
| 2005 | 9 |
| 2006 | 10 |
| 2007 | 13 |
| 2008 | 6 |
| 2009 | 6 |
| 2010 | 13 |
| 2011 | 7 |
| 2012 | 7 |
| 2013 | 10 |
| 2014 | 13 |
| 2015 | 13 |
| 2016 | 3 |
| 2017 | 11 |
| 2018 | 19 |
| 2019 | 7 |
| 2020 | 14 |
| 2021 | 7 |
| 2022 | 5 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 13 |
| 2026 | 11 |
All-Time Record Progression
9 new records| Date | Kind | Detail |
|---|---|---|
| 1962-09-16 | Record daily precipitation | Record daily precipitation 164.1 mm (6.5 in) |
| 1962-12-13 | Record low minimum temperature | Record low minimum temperature -20.6 C (-5.1 F) |
| 1966-01-30 | Record low maximum temperature | Record low maximum temperature -6.1 C (21.0 F) |
| 1967-02-09 | Record daily snowfall | Record daily snowfall 19.1 cm (7.5 in) |
| 1967-08-23 | Record daily precipitation | Record daily precipitation 213.4 mm (8.4 in) |
| 1980-03-02 | Record low maximum temperature | Record low maximum temperature -6.7 C (19.9 F) |
| 1980-03-03 | Record snow depth | Record snow depth 20.3 cm (8.0 in) |
| 1988-01-08 | Record low maximum temperature | Record low maximum temperature -7.2 C (19.0 F) |
| 2004-02-27 | Record snow depth | Record snow depth 30.5 cm (12.0 in) |
Wettest Day of Each Month
Aug: 213.4 mm (8.4 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 89.9 mm (3.5 in) | 6 January 1962 |
| Feb | 72.1 mm (2.8 in) | 11 February 1981 |
| Mar | 101.6 mm (4.0 in) | 20 March 1944 |
| Apr | 108.5 mm (4.3 in) | 1 April 1973 |
| May | 153.9 mm (6.1 in) | 28 May 1966 |
| Jun | 96.8 mm (3.8 in) | 16 June 1973 |
| Jul | 142.7 mm (5.6 in) | 8 July 1941 |
| Aug | 213.4 mm (8.4 in) | 23 August 1967 |
| Sep | 164.1 mm (6.5 in) | 16 September 1962 |
| Oct | 101.6 mm (4.0 in) | 13 October 1990 |
| Nov | 84.3 mm (3.3 in) | 27 November 1987 |
| Dec | 111.8 mm (4.4 in) | 28 December 1926 |
Period of Record Coverage
1923 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1923 | 312 | 85% | No |
| 1924 | 356 | 97% | Yes |
| 1925 | 329 | 90% | Yes |
| 1926 | 241 | 66% | No |
| 1927 | 165 | 45% | No |
| 1928 | 67 | 18% | No |
| 1929 | 20 | 5% | No |
| 1930 | 128 | 35% | No |
| 1931 | 15 | 4% | No |
| 1934 | 39 | 11% | No |
| 1935 | 290 | 79% | No |
| 1936 | 332 | 91% | Yes |
| 1937 | 155 | 42% | No |
| 1938 | 365 | 100% | Yes |
| 1939 | 364 | 100% | Yes |
| 1940 | 356 | 97% | Yes |
| 1941 | 353 | 97% | Yes |
| 1942 | 357 | 98% | Yes |
| 1943 | 351 | 96% | Yes |
| 1944 | 357 | 98% | Yes |
| 1945 | 355 | 97% | Yes |
| 1946 | 355 | 97% | Yes |
| 1947 | 351 | 96% | Yes |
| 1948 | 357 | 98% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 361 | 99% | Yes |
| 1951 | 362 | 99% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 364 | 100% | Yes |
| 1954 | 363 | 99% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 364 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 337 | 92% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 335 | 92% | Yes |
| 1972 | 335 | 92% | Yes |
| 1973 | 364 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 364 | 100% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 354 | 97% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 358 | 98% | Yes |
| 1982 | 299 | 82% | No |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 362 | 99% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 363 | 99% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 364 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 362 | 99% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 352 | 96% | Yes |
| 2004 | 358 | 98% | Yes |
| 2005 | 363 | 99% | Yes |
| 2006 | 362 | 99% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 364 | 99% | Yes |
| 2009 | 355 | 97% | Yes |
| 2010 | 364 | 100% | Yes |
| 2011 | 364 | 100% | Yes |
| 2012 | 363 | 99% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 348 | 95% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 283 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 12 September 2026 | Chester 1 SE, US | daily high max (Provisional) | 36.1 C (97.0 F) | 0.5 C (0.9 F) | 100 years | 41 of 100 (Notable) |
| 25 July 2026 | Chester 1 SE, US | daily low max | 23.3 C (73.9 F) | 2.3 C (4.1 F) | 88 years | 43 of 100 (Notable) |
| 26 May 2026 | Chester 1 SE, US | daily high min (Tie) | 20.0 C (68.0 F) | tie | 80 years | 8 of 100 (Routine) |
| 23 May 2026 | Chester 1 SE, US | daily rain | 86.4 mm (3.4 in) | 54.6 mm (2.1 in) | 23 years | 55 of 100 (Notable) |
| 28 March 2026 | Chester 1 SE, US | daily high max | 30.6 C (87.1 F) | 0.6 C (1.1 F) | 5 years | 12 of 100 (Routine) |
| 23 March 2026 | Chester 1 SE, US | daily high max | 30.0 C (86.0 F) | 0.6 C (1.1 F) | 31 years | 20 of 100 (Routine) |
| 12 March 2026 | Chester 1 SE, US | daily high max | 30.0 C (86.0 F) | 0.6 C (1.1 F) | 71 years | 32 of 100 (Routine) |
| 12 March 2026 | Chester 1 SE, US | daily high min | 17.2 C (63.0 F) | 1.1 C (2.0 F) | 44 years | 24 of 100 (Routine) |
| 11 March 2026 | Chester 1 SE, US | daily high max | 28.9 C (84.0 F) | 0.6 C (1.1 F) | 100 years | 41 of 100 (Notable) |
| 9 March 2026 | Chester 1 SE, US | daily high min | 14.4 C (57.9 F) | 0.5 C (0.9 F) | 52 years | 25 of 100 (Routine) |
| 8 March 2026 | Chester 1 SE, US | daily high min (Tie) | 16.1 C (61.0 F) | tie | 80 years | 8 of 100 (Routine) |
| 21 February 2026 | Chester 1 SE, US | daily high max | 27.8 C (82.0 F) | 2.2 C (4.0 F) | 12 years | 16 of 100 (Routine) |
| 20 February 2026 | Chester 1 SE, US | daily high max (Tie) | 25.6 C (78.1 F) | tie | 75 years | 8 of 100 (Routine) |
| 16 February 2026 | Chester 1 SE, US | daily rain | 35.6 mm (1.4 in) | 2.6 mm (0.10 in) | 56 years | 29 of 100 (Routine) |
| 3 February 2026 | Chester 1 SE, US | daily low min | -13.9 C (7.0 F) | 2.2 C (4.0 F) | 60 years | 31 of 100 (Routine) |
| 2 February 2026 | Chester 1 SE, US | daily low min | -14.4 C (6.1 F) | 4.4 C (7.9 F) | 91 years | 44 of 100 (Notable) |
| 1 February 2026 | Chester 1 SE, US | daily snowfall | 12.7 cm (5.0 in) | 12.7 cm (5.0 in) | 102 years | 65 of 100 (Major) |
| 1 February 2026 | Chester 1 SE, US | daily low max | -2.8 C (27.0 F) | 3.9 C (7.0 F) | 46 years | 29 of 100 (Routine) |
| 26 December 2025 | Chester 1 SE, US | daily high max | 25.6 C (78.1 F) | 1.2 C (2.2 F) | 88 years | 38 of 100 (Notable) |
| 23 November 2025 | Chester 1 SE, US | daily high max (Tie) | 25.6 C (78.1 F) | tie | 84 years | 8 of 100 (Routine) |
Climate Trend
82 complete years, 1924 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1924 | 15.6 C | -0.42 C |
| 1936 | 15.6 C | -0.38 C |
| 1938 | 17.2 C | +1.14 C |
| 1939 | 17.3 C | +1.26 C |
| 1940 | 15.7 C | -0.27 C |
| 1941 | 16.8 C | +0.78 C |
| 1942 | 16.4 C | +0.43 C |
| 1943 | 16.0 C | +0.02 C |
| 1944 | 16.0 C | -0.02 C |
| 1945 | 16.4 C | +0.36 C |
| 1946 | 16.8 C | +0.81 C |
| 1947 | 15.9 C | -0.12 C |
| 1948 | 16.4 C | +0.39 C |
| 1949 | 17.0 C | +0.94 C |
| 1951 | 16.5 C | +0.46 C |
| 1952 | 16.5 C | +0.51 C |
| 1953 | 16.9 C | +0.90 C |
| 1955 | 15.8 C | -0.21 C |
| 1956 | 16.0 C | +0.00 C |
| 1957 | 16.4 C | +0.41 C |
| 1958 | 14.8 C | -1.17 C |
| 1959 | 16.0 C | +0.02 C |
| 1960 | 15.1 C | -0.87 C |
| 1961 | 15.4 C | -0.58 C |
| 1962 | 15.6 C | -0.42 C |
| 1963 | 14.8 C | -1.21 C |
| 1964 | 15.6 C | -0.38 C |
| 1965 | 16.0 C | +0.01 C |
| 1966 | 15.3 C | -0.71 C |
| 1967 | 16.1 C | +0.10 C |
| 1969 | 15.9 C | -0.08 C |
| 1970 | 17.0 C | +0.96 C |
| 1973 | 17.0 C | +1.00 C |
| 1974 | 17.2 C | +1.21 C |
| 1975 | 17.2 C | +1.15 C |
| 1976 | 16.2 C | +0.20 C |
| 1977 | 16.8 C | +0.81 C |
| 1978 | 16.5 C | +0.47 C |
| 1979 | 16.1 C | +0.11 C |
| 1980 | 16.3 C | +0.32 C |
| 1981 | 15.8 C | -0.20 C |
| 1983 | 16.3 C | +0.26 C |
| 1984 | 16.7 C | +0.71 C |
| 1985 | 16.8 C | +0.77 C |
| 1986 | 16.8 C | +0.77 C |
| 1987 | 15.4 C | -0.57 C |
| 1988 | 14.6 C | -1.45 C |
| 1989 | 15.1 C | -0.93 C |
| 1990 | 16.5 C | +0.47 C |
| 1991 | 15.9 C | -0.07 C |
| 1992 | 14.8 C | -1.18 C |
| 1993 | 15.3 C | -0.75 C |
| 1994 | 15.3 C | -0.71 C |
| 1995 | 15.1 C | -0.90 C |
| 1996 | 14.7 C | -1.27 C |
| 1997 | 14.8 C | -1.18 C |
| 1998 | 16.4 C | +0.34 C |
| 1999 | 15.6 C | -0.37 C |
| 2000 | 15.0 C | -1.03 C |
| 2001 | 15.6 C | -0.44 C |
| 2002 | 15.8 C | -0.26 C |
| 2004 | 15.3 C | -0.75 C |
| 2005 | 15.2 C | -0.86 C |
| 2006 | 15.9 C | -0.08 C |
| 2007 | 16.5 C | +0.51 C |
| 2008 | 15.5 C | -0.49 C |
| 2009 | 15.4 C | -0.57 C |
| 2010 | 15.3 C | -0.69 C |
| 2011 | 16.1 C | +0.12 C |
| 2012 | 16.5 C | +0.48 C |
| 2013 | 15.1 C | -0.87 C |
| 2014 | 15.1 C | -0.95 C |
| 2016 | 16.7 C | +0.73 C |
| 2017 | 16.7 C | +0.72 C |
| 2018 | 16.4 C | +0.41 C |
| 2019 | 16.9 C | +0.85 C |
| 2020 | 16.5 C | +0.53 C |
| 2021 | 16.2 C | +0.17 C |
| 2022 | 16.0 C | +0.03 C |
| 2023 | 16.3 C | +0.25 C |
| 2024 | 16.4 C | +0.38 C |
| 2025 | 15.9 C | -0.15 C |
The fitted trend in annual mean temperature here over 1924 to 2025 is -0.05 C (-0.10 to 0.01) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.08 F (-0.18 to 0.02) per decade. The slope is a straight line fitted to 82 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.05 C (-0.10 to 0.01) per decade | -0.08 F (-0.18 to 0.02) per decade | 1924 to 2025 | 82 | Not clearly different from zero |
| Mean daily maximum | -0.1 C (-0.2 to -0.1) per decade | -0.2 F (-0.3 to -0.1) per decade | 1924 to 2025 | 82 | Fall |
| Mean daily minimum | 0.01 C (-0.08 to 0.11) per decade | 0.02 F (-0.15 to 0.19) per decade | 1924 to 2025 | 82 | Not clearly different from zero |
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
1922 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 41.1 C (106.0 F) | 1926 | 37.2 C (99.0 F) | 102 |
| Coldest night (TNn) | -20.6 C (-5.1 F) | 1962 | -11.7 C (10.9 F) | 103 |
| Wettest day (Rx1day) | 213.4 mm (8.4 in) | 1967 | 70.6 mm (2.8 in) | 103 |
| Wettest five days (Rx5day) | 314.2 mm (12.4 in) | 1967 | 108.4 mm (4.3 in) | 103 |
| Longest dry spell (CDD) | 46 days | 1954 | 22 days | 103 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1922 | n/a |
| 1923 | 36.7 C (98.1 F) |
| 1924 | 38.3 C (100.9 F) |
| 1925 | 40.6 C (105.1 F) |
| 1926 | 41.1 C (106.0 F) |
| 1927 | 39.4 C (102.9 F) |
| 1928 | 35.0 C (95.0 F) |
| 1929 | 23.3 C (73.9 F) |
| 1930 | 40.0 C (104.0 F) |
| 1931 | 24.4 C (75.9 F) |
| 1934 | 24.4 C (75.9 F) |
| 1935 | 38.3 C (100.9 F) |
| 1936 | 39.4 C (102.9 F) |
| 1937 | 32.2 C (90.0 F) |
| 1938 | 37.2 C (99.0 F) |
| 1939 | 39.4 C (102.9 F) |
| 1940 | 40.6 C (105.1 F) |
| 1941 | 38.9 C (102.0 F) |
| 1942 | 38.3 C (100.9 F) |
| 1943 | 38.9 C (102.0 F) |
| 1944 | 37.8 C (100.0 F) |
| 1945 | 40.6 C (105.1 F) |
| 1946 | 36.7 C (98.1 F) |
| 1947 | 38.9 C (102.0 F) |
| 1948 | 37.8 C (100.0 F) |
| 1949 | 37.8 C (100.0 F) |
| 1950 | 37.8 C (100.0 F) |
| 1951 | 39.4 C (102.9 F) |
| 1952 | 40.6 C (105.1 F) |
| 1953 | 38.9 C (102.0 F) |
| 1954 | 40.6 C (105.1 F) |
| 1955 | 36.7 C (98.1 F) |
| 1956 | 39.4 C (102.9 F) |
| 1957 | 37.8 C (100.0 F) |
| 1958 | 37.2 C (99.0 F) |
| 1959 | 39.4 C (102.9 F) |
| 1960 | 36.7 C (98.1 F) |
| 1961 | 36.1 C (97.0 F) |
| 1962 | 37.2 C (99.0 F) |
| 1963 | 37.2 C (99.0 F) |
| 1964 | 39.4 C (102.9 F) |
| 1965 | 36.1 C (97.0 F) |
| 1966 | 38.9 C (102.0 F) |
| 1967 | 33.9 C (93.0 F) |
| 1968 | 40.6 C (105.1 F) |
| 1969 | 38.3 C (100.9 F) |
| 1970 | 39.4 C (102.9 F) |
| 1971 | 35.0 C (95.0 F) |
| 1972 | 35.6 C (96.1 F) |
| 1973 | 35.6 C (96.1 F) |
| 1974 | 36.7 C (98.1 F) |
| 1975 | 36.7 C (98.1 F) |
| 1976 | 36.7 C (98.1 F) |
| 1977 | 39.4 C (102.9 F) |
| 1978 | 37.2 C (99.0 F) |
| 1979 | 36.1 C (97.0 F) |
| 1980 | 38.9 C (102.0 F) |
| 1981 | 37.2 C (99.0 F) |
| 1982 | 33.9 C (93.0 F) |
| 1983 | 41.1 C (106.0 F) |
| 1984 | 35.6 C (96.1 F) |
| 1985 | 36.1 C (97.0 F) |
| 1986 | 40.6 C (105.1 F) |
| 1987 | 38.3 C (100.9 F) |
| 1988 | 39.4 C (102.9 F) |
| 1989 | 35.0 C (95.0 F) |
| 1990 | 38.3 C (100.9 F) |
| 1991 | 35.6 C (96.1 F) |
| 1992 | 37.2 C (99.0 F) |
| 1993 | 38.9 C (102.0 F) |
| 1994 | 35.0 C (95.0 F) |
| 1995 | 38.3 C (100.9 F) |
| 1996 | 37.2 C (99.0 F) |
| 1997 | 36.7 C (98.1 F) |
| 1998 | 37.2 C (99.0 F) |
| 1999 | 38.9 C (102.0 F) |
| 2000 | 38.9 C (102.0 F) |
| 2001 | 37.2 C (99.0 F) |
| 2002 | 38.3 C (100.9 F) |
| 2003 | 34.4 C (93.9 F) |
| 2004 | 36.1 C (97.0 F) |
| 2005 | 38.3 C (100.9 F) |
| 2006 | 37.8 C (100.0 F) |
| 2007 | 40.6 C (105.1 F) |
| 2008 | 38.3 C (100.9 F) |
| 2009 | 36.7 C (98.1 F) |
| 2010 | 37.2 C (99.0 F) |
| 2011 | 38.3 C (100.9 F) |
| 2012 | 39.4 C (102.9 F) |
| 2013 | 33.3 C (91.9 F) |
| 2014 | 35.6 C (96.1 F) |
| 2015 | 37.8 C (100.0 F) |
| 2016 | 36.1 C (97.0 F) |
| 2017 | 35.6 C (96.1 F) |
| 2018 | 36.1 C (97.0 F) |
| 2019 | 36.7 C (98.1 F) |
| 2020 | 35.6 C (96.1 F) |
| 2021 | 35.0 C (95.0 F) |
| 2022 | 37.2 C (99.0 F) |
| 2023 | 36.7 C (98.1 F) |
| 2024 | 37.2 C (99.0 F) |
| 2025 | 38.3 C (100.9 F) |
| 2026 | 36.7 C (98.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1922 | -5.6 C (21.9 F) |
| 1923 | -7.8 C (18.0 F) |
| 1924 | -13.3 C (8.1 F) |
| 1925 | -12.8 C (9.0 F) |
| 1926 | -8.3 C (17.1 F) |
| 1927 | -12.2 C (10.0 F) |
| 1928 | 2.2 C (36.0 F) |
| 1929 | -9.4 C (15.1 F) |
| 1930 | -6.1 C (21.0 F) |
| 1931 | -9.4 C (15.1 F) |
| 1934 | -13.3 C (8.1 F) |
| 1935 | -15.6 C (3.9 F) |
| 1936 | -17.8 C (0.0 F) |
| 1937 | -10.6 C (12.9 F) |
| 1938 | -11.7 C (10.9 F) |
| 1939 | -8.3 C (17.1 F) |
| 1940 | -16.7 C (1.9 F) |
| 1941 | -7.2 C (19.0 F) |
| 1942 | -12.8 C (9.0 F) |
| 1943 | -12.2 C (10.0 F) |
| 1944 | -9.4 C (15.1 F) |
| 1945 | -10.6 C (12.9 F) |
| 1946 | -8.9 C (16.0 F) |
| 1947 | -11.7 C (10.9 F) |
| 1948 | -11.7 C (10.9 F) |
| 1949 | -5.6 C (21.9 F) |
| 1950 | -10.6 C (12.9 F) |
| 1951 | -11.7 C (10.9 F) |
| 1952 | -9.4 C (15.1 F) |
| 1953 | -10.6 C (12.9 F) |
| 1954 | -12.8 C (9.0 F) |
| 1955 | -14.4 C (6.1 F) |
| 1956 | -13.9 C (7.0 F) |
| 1957 | -13.9 C (7.0 F) |
| 1958 | -18.3 C (-0.9 F) |
| 1959 | -14.4 C (6.1 F) |
| 1960 | -15.0 C (5.0 F) |
| 1961 | -15.6 C (3.9 F) |
| 1962 | -20.6 C (-5.1 F) |
| 1963 | -15.0 C (5.0 F) |
| 1964 | -13.9 C (7.0 F) |
| 1965 | -12.8 C (9.0 F) |
| 1966 | -17.8 C (0.0 F) |
| 1967 | -13.3 C (8.1 F) |
| 1968 | -10.6 C (12.9 F) |
| 1969 | -11.7 C (10.9 F) |
| 1970 | -15.6 C (3.9 F) |
| 1971 | -11.7 C (10.9 F) |
| 1972 | -9.4 C (15.1 F) |
| 1973 | -10.0 C (14.0 F) |
| 1974 | -8.3 C (17.1 F) |
| 1975 | -11.1 C (12.0 F) |
| 1976 | -11.1 C (12.0 F) |
| 1977 | -14.4 C (6.1 F) |
| 1978 | -12.2 C (10.0 F) |
| 1979 | -11.1 C (12.0 F) |
| 1980 | -15.6 C (3.9 F) |
| 1981 | -13.3 C (8.1 F) |
| 1982 | -17.2 C (1.0 F) |
| 1983 | -15.6 C (3.9 F) |
| 1984 | -11.1 C (12.0 F) |
| 1985 | -19.4 C (-2.9 F) |
| 1986 | -14.4 C (6.1 F) |
| 1987 | -8.9 C (16.0 F) |
| 1988 | -11.7 C (10.9 F) |
| 1989 | -12.2 C (10.0 F) |
| 1990 | -7.8 C (18.0 F) |
| 1991 | -12.8 C (9.0 F) |
| 1992 | -8.9 C (16.0 F) |
| 1993 | -11.7 C (10.9 F) |
| 1994 | -14.4 C (6.1 F) |
| 1995 | -14.4 C (6.1 F) |
| 1996 | -15.0 C (5.0 F) |
| 1997 | -12.2 C (10.0 F) |
| 1998 | -9.4 C (15.1 F) |
| 1999 | -12.2 C (10.0 F) |
| 2000 | -13.3 C (8.1 F) |
| 2001 | -13.3 C (8.1 F) |
| 2002 | -13.9 C (7.0 F) |
| 2003 | -17.2 C (1.0 F) |
| 2004 | -11.7 C (10.9 F) |
| 2005 | -13.9 C (7.0 F) |
| 2006 | -8.3 C (17.1 F) |
| 2007 | -8.3 C (17.1 F) |
| 2008 | -10.0 C (14.0 F) |
| 2009 | -11.7 C (10.9 F) |
| 2010 | -11.1 C (12.0 F) |
| 2011 | -10.6 C (12.9 F) |
| 2012 | -8.3 C (17.1 F) |
| 2013 | -7.2 C (19.0 F) |
| 2014 | -14.4 C (6.1 F) |
| 2015 | -14.4 C (6.1 F) |
| 2016 | -9.4 C (15.1 F) |
| 2017 | -8.9 C (16.0 F) |
| 2018 | -13.3 C (8.1 F) |
| 2019 | -6.7 C (19.9 F) |
| 2020 | -7.8 C (18.0 F) |
| 2021 | -6.1 C (21.0 F) |
| 2022 | -12.8 C (9.0 F) |
| 2023 | -7.2 C (19.0 F) |
| 2024 | -12.2 C (10.0 F) |
| 2025 | -11.1 C (12.0 F) |
| 2026 | -14.4 C (6.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1922 | 47.0 mm (1.9 in) |
| 1923 | 58.4 mm (2.3 in) |
| 1924 | 61.0 mm (2.4 in) |
| 1925 | 66.3 mm (2.6 in) |
| 1926 | 111.8 mm (4.4 in) |
| 1927 | 72.4 mm (2.9 in) |
| 1928 | 136.7 mm (5.4 in) |
| 1929 | 55.9 mm (2.2 in) |
| 1930 | 59.7 mm (2.4 in) |
| 1931 | 26.7 mm (1.1 in) |
| 1934 | 25.4 mm (1.0 in) |
| 1935 | 68.1 mm (2.7 in) |
| 1936 | 132.3 mm (5.2 in) |
| 1937 | 58.9 mm (2.3 in) |
| 1938 | 71.9 mm (2.8 in) |
| 1939 | 79.2 mm (3.1 in) |
| 1940 | 62.2 mm (2.4 in) |
| 1941 | 142.7 mm (5.6 in) |
| 1942 | 56.9 mm (2.2 in) |
| 1943 | 73.2 mm (2.9 in) |
| 1944 | 101.6 mm (4.0 in) |
| 1945 | 66.0 mm (2.6 in) |
| 1946 | 87.1 mm (3.4 in) |
| 1947 | 51.6 mm (2.0 in) |
| 1948 | 61.2 mm (2.4 in) |
| 1949 | 77.0 mm (3.0 in) |
| 1950 | 84.1 mm (3.3 in) |
| 1951 | 45.2 mm (1.8 in) |
| 1952 | 68.8 mm (2.7 in) |
| 1953 | 77.5 mm (3.1 in) |
| 1954 | 72.4 mm (2.9 in) |
| 1955 | 68.6 mm (2.7 in) |
| 1956 | 59.7 mm (2.4 in) |
| 1957 | 80.8 mm (3.2 in) |
| 1958 | 59.2 mm (2.3 in) |
| 1959 | 114.8 mm (4.5 in) |
| 1960 | 57.9 mm (2.3 in) |
| 1961 | 43.9 mm (1.7 in) |
| 1962 | 164.1 mm (6.5 in) |
| 1963 | 52.8 mm (2.1 in) |
| 1964 | 81.3 mm (3.2 in) |
| 1965 | 56.4 mm (2.2 in) |
| 1966 | 153.9 mm (6.1 in) |
| 1967 | 213.4 mm (8.4 in) |
| 1968 | 59.7 mm (2.4 in) |
| 1969 | 68.6 mm (2.7 in) |
| 1970 | 53.6 mm (2.1 in) |
| 1971 | 95.0 mm (3.7 in) |
| 1972 | 86.6 mm (3.4 in) |
| 1973 | 108.5 mm (4.3 in) |
| 1974 | 72.9 mm (2.9 in) |
| 1975 | 70.6 mm (2.8 in) |
| 1976 | 89.2 mm (3.5 in) |
| 1977 | 100.1 mm (3.9 in) |
| 1978 | 42.7 mm (1.7 in) |
| 1979 | 74.9 mm (2.9 in) |
| 1980 | 85.6 mm (3.4 in) |
| 1981 | 72.1 mm (2.8 in) |
| 1982 | 72.9 mm (2.9 in) |
| 1983 | 94.0 mm (3.7 in) |
| 1984 | 89.2 mm (3.5 in) |
| 1985 | 57.2 mm (2.3 in) |
| 1986 | 87.6 mm (3.4 in) |
| 1987 | 100.8 mm (4.0 in) |
| 1988 | 49.5 mm (1.9 in) |
| 1989 | 93.2 mm (3.7 in) |
| 1990 | 101.6 mm (4.0 in) |
| 1991 | 56.6 mm (2.2 in) |
| 1992 | 69.9 mm (2.8 in) |
| 1993 | 61.5 mm (2.4 in) |
| 1994 | 66.5 mm (2.6 in) |
| 1995 | 90.2 mm (3.6 in) |
| 1996 | 78.2 mm (3.1 in) |
| 1997 | 94.7 mm (3.7 in) |
| 1998 | 142.5 mm (5.6 in) |
| 1999 | 48.8 mm (1.9 in) |
| 2000 | 101.6 mm (4.0 in) |
| 2001 | 43.2 mm (1.7 in) |
| 2002 | 59.7 mm (2.4 in) |
| 2003 | 76.7 mm (3.0 in) |
| 2004 | 145.3 mm (5.7 in) |
| 2005 | 69.9 mm (2.8 in) |
| 2006 | 78.7 mm (3.1 in) |
| 2007 | 53.1 mm (2.1 in) |
| 2008 | 181.1 mm (7.1 in) |
| 2009 | 73.4 mm (2.9 in) |
| 2010 | 86.9 mm (3.4 in) |
| 2011 | 60.5 mm (2.4 in) |
| 2012 | 62.7 mm (2.5 in) |
| 2013 | 68.6 mm (2.7 in) |
| 2014 | 57.2 mm (2.3 in) |
| 2015 | 69.3 mm (2.7 in) |
| 2016 | 73.4 mm (2.9 in) |
| 2017 | 66.5 mm (2.6 in) |
| 2018 | 70.1 mm (2.8 in) |
| 2019 | 67.3 mm (2.6 in) |
| 2020 | 80.0 mm (3.1 in) |
| 2021 | 59.2 mm (2.3 in) |
| 2022 | 68.8 mm (2.7 in) |
| 2023 | 52.1 mm (2.1 in) |
| 2024 | 119.4 mm (4.7 in) |
| 2025 | 56.4 mm (2.2 in) |
| 2026 | 86.4 mm (3.4 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1922 | 108.7 mm (4.3 in) |
| 1923 | 105.4 mm (4.1 in) |
| 1924 | 142.2 mm (5.6 in) |
| 1925 | 138.9 mm (5.5 in) |
| 1926 | 152.4 mm (6.0 in) |
| 1927 | 114.8 mm (4.5 in) |
| 1928 | 190.0 mm (7.5 in) |
| 1929 | 103.1 mm (4.1 in) |
| 1930 | 101.6 mm (4.0 in) |
| 1931 | 0.0 mm (0.00 in) |
| 1934 | 33.0 mm (1.3 in) |
| 1935 | 68.1 mm (2.7 in) |
| 1936 | 137.6 mm (5.4 in) |
| 1937 | 86.8 mm (3.4 in) |
| 1938 | 105.4 mm (4.1 in) |
| 1939 | 116.8 mm (4.6 in) |
| 1940 | 108.4 mm (4.3 in) |
| 1941 | 247.6 mm (9.7 in) |
| 1942 | 131.3 mm (5.2 in) |
| 1943 | 86.5 mm (3.4 in) |
| 1944 | 148.8 mm (5.9 in) |
| 1945 | 219.4 mm (8.6 in) |
| 1946 | 106.9 mm (4.2 in) |
| 1947 | 83.6 mm (3.3 in) |
| 1948 | 97.3 mm (3.8 in) |
| 1949 | 125.2 mm (4.9 in) |
| 1950 | 88.2 mm (3.5 in) |
| 1951 | 70.1 mm (2.8 in) |
| 1952 | 100.6 mm (4.0 in) |
| 1953 | 82.7 mm (3.3 in) |
| 1954 | 105.7 mm (4.2 in) |
| 1955 | 96.9 mm (3.8 in) |
| 1956 | 104.1 mm (4.1 in) |
| 1957 | 129.5 mm (5.1 in) |
| 1958 | 79.5 mm (3.1 in) |
| 1959 | 229.4 mm (9.0 in) |
| 1960 | 87.4 mm (3.4 in) |
| 1961 | 106.6 mm (4.2 in) |
| 1962 | 217.2 mm (8.6 in) |
| 1963 | 96.0 mm (3.8 in) |
| 1964 | 135.2 mm (5.3 in) |
| 1965 | 70.0 mm (2.8 in) |
| 1966 | 176.8 mm (7.0 in) |
| 1967 | 314.2 mm (12.4 in) |
| 1968 | 107.2 mm (4.2 in) |
| 1969 | 130.3 mm (5.1 in) |
| 1970 | 95.1 mm (3.7 in) |
| 1971 | 144.5 mm (5.7 in) |
| 1972 | 142.0 mm (5.6 in) |
| 1973 | 146.1 mm (5.8 in) |
| 1974 | 110.8 mm (4.4 in) |
| 1975 | 113.3 mm (4.5 in) |
| 1976 | 98.1 mm (3.9 in) |
| 1977 | 115.8 mm (4.6 in) |
| 1978 | 74.2 mm (2.9 in) |
| 1979 | 110.2 mm (4.3 in) |
| 1980 | 146.3 mm (5.8 in) |
| 1981 | 177.6 mm (7.0 in) |
| 1982 | 123.2 mm (4.9 in) |
| 1983 | 153.1 mm (6.0 in) |
| 1984 | 95.5 mm (3.8 in) |
| 1985 | 112.3 mm (4.4 in) |
| 1986 | 158.3 mm (6.2 in) |
| 1987 | 144.7 mm (5.7 in) |
| 1988 | 58.6 mm (2.3 in) |
| 1989 | 157.5 mm (6.2 in) |
| 1990 | 198.9 mm (7.8 in) |
| 1991 | 97.7 mm (3.8 in) |
| 1992 | 133.6 mm (5.3 in) |
| 1993 | 85.1 mm (3.4 in) |
| 1994 | 104.1 mm (4.1 in) |
| 1995 | 129.8 mm (5.1 in) |
| 1996 | 88.6 mm (3.5 in) |
| 1997 | 103.1 mm (4.1 in) |
| 1998 | 144.3 mm (5.7 in) |
| 1999 | 100.6 mm (4.0 in) |
| 2000 | 147.9 mm (5.8 in) |
| 2001 | 55.7 mm (2.2 in) |
| 2002 | 74.9 mm (2.9 in) |
| 2003 | 147.3 mm (5.8 in) |
| 2004 | 158.0 mm (6.2 in) |
| 2005 | 117.6 mm (4.6 in) |
| 2006 | 104.9 mm (4.1 in) |
| 2007 | 75.5 mm (3.0 in) |
| 2008 | 251.8 mm (9.9 in) |
| 2009 | 89.7 mm (3.5 in) |
| 2010 | 95.8 mm (3.8 in) |
| 2011 | 67.6 mm (2.7 in) |
| 2012 | 69.8 mm (2.7 in) |
| 2013 | 94.2 mm (3.7 in) |
| 2014 | 87.7 mm (3.5 in) |
| 2015 | 134.6 mm (5.3 in) |
| 2016 | 115.3 mm (4.5 in) |
| 2017 | 133.0 mm (5.2 in) |
| 2018 | 120.9 mm (4.8 in) |
| 2019 | 82.3 mm (3.2 in) |
| 2020 | 89.2 mm (3.5 in) |
| 2021 | 98.4 mm (3.9 in) |
| 2022 | 74.2 mm (2.9 in) |
| 2023 | 88.7 mm (3.5 in) |
| 2024 | 144.9 mm (5.7 in) |
| 2025 | 123.6 mm (4.9 in) |
| 2026 | 125.8 mm (5.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1922 | 25 days |
| 1923 | 17 days |
| 1924 | 25 days |
| 1925 | 30 days |
| 1926 | 34 days |
| 1927 | 21 days |
| 1928 | 16 days |
| 1929 | 10 days |
| 1930 | 13 days |
| 1931 | 11 days |
| 1934 | 15 days |
| 1935 | 39 days |
| 1936 | 25 days |
| 1937 | 14 days |
| 1938 | 23 days |
| 1939 | 17 days |
| 1940 | 31 days |
| 1941 | 28 days |
| 1942 | 26 days |
| 1943 | 22 days |
| 1944 | 20 days |
| 1945 | 17 days |
| 1946 | 15 days |
| 1947 | 33 days |
| 1948 | 20 days |
| 1949 | 16 days |
| 1950 | 25 days |
| 1951 | 24 days |
| 1952 | 25 days |
| 1953 | 17 days |
| 1954 | 46 days |
| 1955 | 23 days |
| 1956 | 19 days |
| 1957 | 17 days |
| 1958 | 27 days |
| 1959 | 20 days |
| 1960 | 21 days |
| 1961 | 26 days |
| 1962 | 22 days |
| 1963 | 20 days |
| 1964 | 33 days |
| 1965 | 21 days |
| 1966 | 18 days |
| 1967 | 19 days |
| 1968 | 31 days |
| 1969 | 29 days |
| 1970 | 21 days |
| 1971 | 15 days |
| 1972 | 18 days |
| 1973 | 26 days |
| 1974 | 32 days |
| 1975 | 20 days |
| 1976 | 19 days |
| 1977 | 18 days |
| 1978 | 25 days |
| 1979 | 30 days |
| 1980 | 26 days |
| 1981 | 27 days |
| 1982 | 15 days |
| 1983 | 19 days |
| 1984 | 25 days |
| 1985 | 23 days |
| 1986 | 33 days |
| 1987 | 36 days |
| 1988 | 26 days |
| 1989 | 20 days |
| 1990 | 19 days |
| 1991 | 29 days |
| 1992 | 19 days |
| 1993 | 20 days |
| 1994 | 14 days |
| 1995 | 22 days |
| 1996 | 24 days |
| 1997 | 17 days |
| 1998 | 25 days |
| 1999 | 24 days |
| 2000 | 39 days |
| 2001 | 29 days |
| 2002 | 22 days |
| 2003 | 20 days |
| 2004 | 17 days |
| 2005 | 39 days |
| 2006 | 19 days |
| 2007 | 23 days |
| 2008 | 13 days |
| 2009 | 13 days |
| 2010 | 20 days |
| 2011 | 20 days |
| 2012 | 27 days |
| 2013 | 23 days |
| 2014 | 16 days |
| 2015 | 18 days |
| 2016 | 35 days |
| 2017 | 25 days |
| 2018 | 13 days |
| 2019 | 26 days |
| 2020 | 12 days |
| 2021 | 13 days |
| 2022 | 17 days |
| 2023 | 23 days |
| 2024 | 26 days |
| 2025 | 41 days |
| 2026 | 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
82 years with a frostAcross 82 years with a frost, the median last spring frost at Chester 1 SE falls on 9 April and the median first autumn frost on 30 October, which leaves a median of 206 days between them.
In 1994 to 2025 the median growing season was 208 days. That is 6 days more than in 1924 to 1967.
Fitted over all years, the growing season changes by +0.5 days per decade at this station.
| Measure | Median, all years | Earliest period (1924 to 1967) | Recent period (1994 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 9 April | 11 April | 9 April | 2 days earlier | -0.5 days per decade |
| First autumn frost | 30 October | 29 October | 1 November | 3 days later | +0.1 days per decade |
| Growing days | 206 days | 202 days | 208 days | 6 days more | +0.5 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
93 years, 1923 to 2025A day with at least 71.9 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 203.2 mm (8.0 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 71.9 mm (2.8 in) | |
| 5 years | 95.6 mm (3.8 in) | |
| 10 years | 115.0 mm (4.5 in) | |
| 25 years | 145.0 mm (5.7 in) | |
| 50 years | 171.8 mm (6.8 in) | |
| 100 years | 203.2 mm (8.0 in) | Longer than the 93 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, 93 years of values from 1923 to 2025.
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: 213.4 mm (8.4 in) in 1967; 181.1 mm (7.1 in) in 2008; 164.1 mm (6.5 in) in 1962.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Chester 1 SE, at 1990. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1990 ran 0.3 C (0.6 F) lower than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1990 | -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.
Climate Twins
2010 to 2025 against 1961 to 1990Over 2010 to 2025, Chester 1 SE had a mean temperature of 16.1 C (61.1 F) and 1,147.7 mm (45.2 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Pope AFB (United States, 207 km away), Dillon (United States, 171 km away) and Anderson FAA AP (United States, 140 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Pope AFB | United States | 207 km (129 mi) | 16.2 C (61.1 F) | 1,152.6 mm (45.4 in) | 0.54 |
| Dillon | United States | 171 km (106 mi) | 16.3 C (61.3 F) | 1,161.5 mm (45.7 in) | 0.55 |
| Anderson FAA AP | United States | 140 km (87 mi) | 16.4 C (61.4 F) | 1,180.6 mm (46.5 in) | 0.56 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-16).