Rothamsted Weather Records (UKE00105900)
Record envelope, standing records and threshold days for Rothamsted (UKE00105900), United Kingdom, with 111 years of record.
Key Facts for Rothamsted
- Rothamsted (UKE00105900) is a weather station in United Kingdom at 51.81 latitude and 0.36 longitude, 128 m (420 ft) above sea level.
- The station reports from 1916 to 2026, 111 years of record.
- 1,464 records set at Rothamsted still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Rothamsted set a daily record high minimum temperature of 16.8 C (62.2 F) on 27 August 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: United Kingdom, 51.81 latitude, 0.36 longitude.
- Elevation: 128 m (420 ft).
- Period of record: 1916 to 2026, 111 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
17 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 14.2 C (57.6 F) | -16.7 C (1.9 F) | 11.0 C (51.8 F) | -6.3 C (20.7 F) |
| Feb | 18.2 C (64.8 F) | -15.6 C (3.9 F) | 16.3 C (61.3 F) | -1.0 C (30.2 F) |
| Mar | 22.3 C (72.1 F) | -12.2 C (10.0 F) | 17.9 C (64.2 F) | -0.8 C (30.6 F) |
| Apr | 26.8 C (80.2 F) | -6.2 C (20.8 F) | 24.3 C (75.7 F) | -1.6 C (29.1 F) |
| May | 32.5 C (90.5 F) | -3.3 C (26.1 F) | 32.5 C (90.5 F) | -0.8 C (30.6 F) |
| Jun | 34.3 C (93.7 F) | 0.0 C (32.0 F) | 34.3 C (93.7 F) | 6.1 C (43.0 F) |
| Jul | 38.5 C (101.3 F) | 2.8 C (37.0 F) | 33.1 C (91.6 F) | 7.3 C (45.1 F) |
| Aug | 36.0 C (96.8 F) | 2.8 C (37.0 F) | 35.5 C (95.9 F) | 7.2 C (45.0 F) |
| Sep | 31.0 C (87.8 F) | -1.1 C (30.0 F) | n/a | n/a |
| Oct | 26.8 C (80.2 F) | -5.0 C (23.0 F) | n/a | n/a |
| Nov | 18.9 C (66.0 F) | -11.1 C (12.0 F) | n/a | n/a |
| Dec | 15.3 C (59.5 F) | -17.0 C (1.4 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1916 | 13 |
| 1917 | 29 |
| 1918 | 14 |
| 1919 | 34 |
| 1920 | 13 |
| 1921 | 17 |
| 1922 | 16 |
| 1923 | 23 |
| 1924 | 7 |
| 1925 | 10 |
| 1926 | 16 |
| 1927 | 18 |
| 1928 | 12 |
| 1929 | 25 |
| 1930 | 15 |
| 1931 | 19 |
| 1932 | 9 |
| 1933 | 5 |
| 1934 | 7 |
| 1935 | 11 |
| 1936 | 9 |
| 1937 | 5 |
| 1938 | 11 |
| 1939 | 18 |
| 1940 | 6 |
| 1941 | 17 |
| 1942 | 11 |
| 1943 | 2 |
| 1944 | 9 |
| 1945 | 14 |
| 1946 | 15 |
| 1947 | 38 |
| 1948 | 18 |
| 1949 | 11 |
| 1950 | 4 |
| 1951 | 5 |
| 1952 | 17 |
| 1953 | 6 |
| 1954 | 12 |
| 1955 | 12 |
| 1956 | 11 |
| 1957 | 5 |
| 1958 | 5 |
| 1959 | 8 |
| 1960 | 5 |
| 1961 | 5 |
| 1962 | 19 |
| 1963 | 19 |
| 1964 | 11 |
| 1965 | 18 |
| 1966 | 10 |
| 1967 | 8 |
| 1968 | 11 |
| 1969 | 12 |
| 1970 | 13 |
| 1971 | 8 |
| 1972 | 5 |
| 1973 | 4 |
| 1974 | 6 |
| 1975 | 7 |
| 1976 | 14 |
| 1977 | 15 |
| 1978 | 9 |
| 1979 | 16 |
| 1980 | 13 |
| 1981 | 24 |
| 1982 | 9 |
| 1983 | 12 |
| 1984 | 4 |
| 1985 | 22 |
| 1986 | 11 |
| 1987 | 13 |
| 1988 | 5 |
| 1989 | 9 |
| 1990 | 21 |
| 1991 | 11 |
| 1992 | 3 |
| 1993 | 14 |
| 1994 | 17 |
| 1995 | 15 |
| 1996 | 10 |
| 1997 | 16 |
| 1998 | 7 |
| 1999 | 10 |
| 2000 | 12 |
| 2001 | 5 |
| 2002 | 12 |
| 2003 | 19 |
| 2004 | 16 |
| 2005 | 15 |
| 2006 | 24 |
| 2007 | 13 |
| 2008 | 10 |
| 2009 | 3 |
| 2010 | 15 |
| 2011 | 25 |
| 2012 | 5 |
| 2013 | 11 |
| 2014 | 7 |
| 2015 | 33 |
| 2016 | 16 |
| 2017 | 18 |
| 2018 | 14 |
| 2019 | 14 |
| 2020 | 18 |
| 2021 | 14 |
| 2022 | 21 |
| 2023 | 19 |
| 2024 | 10 |
| 2025 | 19 |
| 2026 | 33 |
All-Time Record Progression
13 new records| Date | Kind | Detail |
|---|---|---|
| 1948-07-29 | Record high minimum temperature | Record high minimum temperature 18.9 C (66.0 F) |
| 1963-01-23 | Record low minimum temperature | Record low minimum temperature -16.7 C (1.9 F) |
| 1981-12-13 | Record low minimum temperature | Record low minimum temperature -17.0 C (1.4 F) |
| 1987-01-11 | Record low maximum temperature | Record low maximum temperature -7.2 C (19.0 F) |
| 1990-08-02 | Record high maximum temperature | Record high maximum temperature 33.8 C (92.8 F) |
| 1997-08-23 | Record high minimum temperature | Record high minimum temperature 19.0 C (66.2 F) |
| 2003-08-05 | Record high maximum temperature | Record high maximum temperature 34.4 C (93.9 F) |
| 2003-08-09 | Record high maximum temperature | Record high maximum temperature 36.0 C (96.8 F) |
| 2004-08-09 | Record high minimum temperature | Record high minimum temperature 19.6 C (67.3 F) |
| 2019-07-24 | Record high maximum temperature | Record high maximum temperature 36.6 C (97.9 F) |
| 2022-07-18 | Record high maximum temperature | Record high maximum temperature 38.5 C (101.3 F) |
| 2025-07-01 | Record high minimum temperature | Record high minimum temperature 19.7 C (67.5 F) |
| 2026-06-26 | Record high minimum temperature | Record high minimum temperature 20.8 C (69.4 F) |
Wettest Day of Each Month
Jun: 80.0 mm (3.1 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 26.0 mm (1.0 in) | 8 January 1996 |
| Feb | 33.6 mm (1.3 in) | 9 February 2009 |
| Mar | 30.7 mm (1.2 in) | 29 March 1952 |
| Apr | 34.1 mm (1.3 in) | 29 April 1991 |
| May | 58.2 mm (2.3 in) | 21 May 2024 |
| Jun | 80.0 mm (3.1 in) | 21 June 1936 |
| Jul | 59.4 mm (2.3 in) | 10 July 1959 |
| Aug | 39.8 mm (1.6 in) | 8 August 2000 |
| Sep | 64.4 mm (2.5 in) | 22 September 1992 |
| Oct | 59.8 mm (2.4 in) | 2 October 2020 |
| Nov | 34.2 mm (1.3 in) | 3 November 1996 |
| Dec | 47.5 mm (1.9 in) | 27 December 1979 |
Period of Record Coverage
1916 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1916 | 359 | 98% | Yes |
| 1917 | 360 | 99% | Yes |
| 1918 | 357 | 98% | Yes |
| 1919 | 360 | 99% | Yes |
| 1920 | 360 | 98% | Yes |
| 1921 | 355 | 97% | Yes |
| 1922 | 362 | 99% | Yes |
| 1923 | 360 | 99% | Yes |
| 1924 | 354 | 97% | Yes |
| 1925 | 355 | 97% | Yes |
| 1926 | 360 | 99% | Yes |
| 1927 | 355 | 97% | Yes |
| 1928 | 359 | 98% | Yes |
| 1929 | 355 | 97% | Yes |
| 1930 | 356 | 98% | Yes |
| 1931 | 357 | 98% | Yes |
| 1932 | 355 | 97% | Yes |
| 1933 | 355 | 97% | Yes |
| 1934 | 359 | 98% | Yes |
| 1935 | 359 | 98% | Yes |
| 1936 | 359 | 98% | Yes |
| 1937 | 358 | 98% | Yes |
| 1938 | 356 | 98% | Yes |
| 1939 | 357 | 98% | Yes |
| 1940 | 360 | 98% | Yes |
| 1941 | 356 | 98% | Yes |
| 1942 | 356 | 98% | Yes |
| 1943 | 360 | 99% | Yes |
| 1944 | 357 | 98% | Yes |
| 1945 | 359 | 98% | Yes |
| 1946 | 355 | 97% | Yes |
| 1947 | 355 | 97% | Yes |
| 1948 | 359 | 98% | Yes |
| 1949 | 361 | 99% | Yes |
| 1950 | 360 | 99% | Yes |
| 1951 | 361 | 99% | Yes |
| 1952 | 361 | 99% | Yes |
| 1953 | 361 | 99% | Yes |
| 1954 | 357 | 98% | Yes |
| 1955 | 354 | 97% | Yes |
| 1956 | 358 | 98% | Yes |
| 1957 | 329 | 90% | Yes |
| 1958 | 355 | 97% | Yes |
| 1959 | 364 | 100% | Yes |
| 1960 | 361 | 99% | Yes |
| 1961 | 360 | 99% | Yes |
| 1962 | 359 | 98% | Yes |
| 1963 | 362 | 99% | Yes |
| 1964 | 359 | 98% | Yes |
| 1965 | 357 | 98% | Yes |
| 1966 | 359 | 98% | Yes |
| 1967 | 359 | 98% | Yes |
| 1968 | 353 | 96% | Yes |
| 1969 | 357 | 98% | Yes |
| 1970 | 363 | 99% | Yes |
| 1971 | 358 | 98% | Yes |
| 1972 | 361 | 99% | Yes |
| 1973 | 360 | 99% | Yes |
| 1974 | 360 | 99% | Yes |
| 1975 | 358 | 98% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 354 | 97% | Yes |
| 1978 | 355 | 97% | Yes |
| 1979 | 362 | 99% | Yes |
| 1980 | 360 | 98% | Yes |
| 1981 | 355 | 97% | Yes |
| 1982 | 357 | 98% | Yes |
| 1983 | 359 | 98% | Yes |
| 1984 | 358 | 98% | Yes |
| 1985 | 359 | 98% | Yes |
| 1986 | 359 | 98% | Yes |
| 1987 | 359 | 98% | Yes |
| 1988 | 362 | 99% | Yes |
| 1989 | 357 | 98% | Yes |
| 1990 | 363 | 99% | Yes |
| 1991 | 358 | 98% | Yes |
| 1992 | 364 | 99% | Yes |
| 1993 | 357 | 98% | Yes |
| 1994 | 353 | 97% | Yes |
| 1995 | 353 | 97% | Yes |
| 1996 | 359 | 98% | Yes |
| 1997 | 358 | 98% | Yes |
| 1998 | 357 | 98% | Yes |
| 1999 | 358 | 98% | Yes |
| 2000 | 361 | 99% | Yes |
| 2001 | 355 | 97% | Yes |
| 2002 | 360 | 99% | Yes |
| 2003 | 351 | 96% | Yes |
| 2004 | 359 | 98% | Yes |
| 2005 | 362 | 99% | Yes |
| 2006 | 360 | 99% | Yes |
| 2007 | 356 | 98% | Yes |
| 2008 | 356 | 97% | Yes |
| 2009 | 357 | 98% | Yes |
| 2010 | 357 | 98% | Yes |
| 2011 | 360 | 99% | Yes |
| 2012 | 356 | 97% | Yes |
| 2013 | 355 | 97% | Yes |
| 2014 | 359 | 98% | Yes |
| 2015 | 361 | 99% | Yes |
| 2016 | 360 | 98% | Yes |
| 2017 | 359 | 98% | Yes |
| 2018 | 356 | 98% | Yes |
| 2019 | 361 | 99% | Yes |
| 2020 | 359 | 98% | Yes |
| 2021 | 356 | 98% | Yes |
| 2022 | 361 | 99% | Yes |
| 2023 | 357 | 98% | Yes |
| 2024 | 356 | 97% | Yes |
| 2025 | 361 | 99% | Yes |
| 2026 | 241 | 66% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 27 August 2026 | Rothamsted, GB | daily high min (Provisional) | 16.8 C (62.2 F) | 0.1 C (0.2 F) | 96 years | 38 of 100 (Notable) |
| 15 August 2026 | Rothamsted, GB | daily high min | 18.1 C (64.6 F) | 1.6 C (2.9 F) | 45 years | 29 of 100 (Routine) |
| 14 August 2026 | Rothamsted, GB | daily high min | 17.5 C (63.5 F) | 0.8 C (1.4 F) | 13 years | 17 of 100 (Routine) |
| 13 August 2026 | Rothamsted, GB | daily high max | 32.6 C (90.7 F) | 1.0 C (1.8 F) | 4 years | 13 of 100 (Routine) |
| 12 August 2026 | Rothamsted, GB | daily high max | 35.5 C (95.9 F) | 3.2 C (5.8 F) | 4 years | 20 of 100 (Routine) |
| 28 July 2026 | Rothamsted, GB | daily high max | 33.1 C (91.6 F) | 0.3 C (0.5 F) | 77 years | 33 of 100 (Routine) |
| 10 July 2026 | Rothamsted, GB | daily high min | 18.2 C (64.8 F) | 2.1 C (3.8 F) | 93 years | 46 of 100 (Notable) |
| 9 July 2026 | Rothamsted, GB | daily high max | 31.3 C (88.3 F) | 0.2 C (0.4 F) | 104 years | 40 of 100 (Notable) |
| 8 July 2026 | Rothamsted, GB | daily high max | 33.1 C (91.6 F) | 4.0 C (7.2 F) | 16 years | 25 of 100 (Routine) |
| 7 July 2026 | Rothamsted, GB | daily high max | 31.6 C (88.9 F) | 0.5 C (0.9 F) | 67 years | 31 of 100 (Routine) |
| 27 June 2026 | Rothamsted, GB | daily high min | 18.2 C (64.8 F) | 0.3 C (0.5 F) | 49 years | 25 of 100 (Routine) |
| 26 June 2026 | Rothamsted, GB | all-time high min | 20.8 C (69.4 F) | 1.1 C (2.0 F) | 0 years | 34 of 100 (Routine) |
| 25 June 2026 | Rothamsted, GB | monthly high max | 34.3 C (93.7 F) | 0.6 C (1.1 F) | 10 years | 24 of 100 (Routine) |
| 25 June 2026 | Rothamsted, GB | monthly high min (Tie) | 18.5 C (65.3 F) | tie | 0 years | 5 of 100 (Routine) |
| 24 June 2026 | Rothamsted, GB | monthly high min | 18.5 C (65.3 F) | 0.6 C (1.1 F) | 49 years | 36 of 100 (Notable) |
| 24 June 2026 | Rothamsted, GB | daily high max | 31.9 C (89.4 F) | 1.1 C (2.0 F) | 49 years | 26 of 100 (Routine) |
| 23 June 2026 | Rothamsted, GB | daily high min | 16.6 C (61.9 F) | 1.1 C (2.0 F) | 23 years | 20 of 100 (Routine) |
| 23 June 2026 | Rothamsted, GB | daily high max | 32.2 C (90.0 F) | 3.2 C (5.8 F) | 5 years | 19 of 100 (Routine) |
| 22 June 2026 | Rothamsted, GB | daily high max | 32.6 C (90.7 F) | 3.3 C (5.9 F) | 20 years | 24 of 100 (Routine) |
| 17 June 2026 | Rothamsted, GB | daily high min | 15.4 C (59.7 F) | 0.9 C (1.6 F) | 20 years | 19 of 100 (Routine) |
Climate Trend
109 complete years, 1916 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1916 | 8.7 C | -0.83 C |
| 1917 | 8.1 C | -1.40 C |
| 1918 | 9.1 C | -0.38 C |
| 1919 | 8.0 C | -1.45 C |
| 1920 | 9.2 C | -0.30 C |
| 1921 | 10.2 C | +0.70 C |
| 1922 | 8.3 C | -1.19 C |
| 1923 | 8.7 C | -0.79 C |
| 1924 | 9.0 C | -0.49 C |
| 1925 | 8.7 C | -0.77 C |
| 1926 | 9.3 C | -0.19 C |
| 1927 | 8.6 C | -0.89 C |
| 1928 | 9.1 C | -0.35 C |
| 1929 | 8.8 C | -0.73 C |
| 1930 | 9.1 C | -0.41 C |
| 1931 | 8.6 C | -0.92 C |
| 1932 | 8.9 C | -0.56 C |
| 1933 | 9.5 C | -0.02 C |
| 1934 | 9.5 C | +0.04 C |
| 1935 | 9.3 C | -0.16 C |
| 1936 | 8.7 C | -0.74 C |
| 1937 | 9.1 C | -0.36 C |
| 1938 | 9.6 C | +0.16 C |
| 1939 | 9.1 C | -0.36 C |
| 1940 | 8.5 C | -0.95 C |
| 1941 | 8.6 C | -0.87 C |
| 1942 | 8.7 C | -0.83 C |
| 1943 | 9.7 C | +0.22 C |
| 1944 | 9.1 C | -0.34 C |
| 1945 | 9.9 C | +0.39 C |
| 1946 | 9.1 C | -0.41 C |
| 1947 | 9.3 C | -0.15 C |
| 1948 | 9.7 C | +0.23 C |
| 1949 | 10.2 C | +0.72 C |
| 1950 | 9.1 C | -0.36 C |
| 1951 | 9.0 C | -0.48 C |
| 1952 | 8.9 C | -0.58 C |
| 1953 | 9.4 C | -0.11 C |
| 1954 | 8.9 C | -0.59 C |
| 1955 | 9.0 C | -0.50 C |
| 1956 | 8.5 C | -1.03 C |
| 1958 | 9.2 C | -0.28 C |
| 1959 | 10.0 C | +0.53 C |
| 1960 | 9.3 C | -0.21 C |
| 1961 | 9.7 C | +0.21 C |
| 1962 | 8.1 C | -1.34 C |
| 1963 | 7.9 C | -1.59 C |
| 1964 | 9.1 C | -0.40 C |
| 1965 | 8.6 C | -0.92 C |
| 1966 | 9.2 C | -0.29 C |
| 1967 | 9.4 C | -0.12 C |
| 1968 | 8.9 C | -0.54 C |
| 1969 | 9.0 C | -0.50 C |
| 1970 | 9.1 C | -0.38 C |
| 1971 | 9.3 C | -0.17 C |
| 1972 | 8.9 C | -0.54 C |
| 1973 | 9.4 C | -0.12 C |
| 1974 | 9.3 C | -0.20 C |
| 1975 | 9.6 C | +0.12 C |
| 1976 | 9.8 C | +0.32 C |
| 1977 | 9.2 C | -0.30 C |
| 1978 | 9.1 C | -0.41 C |
| 1979 | 8.5 C | -1.02 C |
| 1980 | 8.9 C | -0.59 C |
| 1981 | 8.8 C | -0.72 C |
| 1982 | 9.5 C | +0.06 C |
| 1983 | 9.7 C | +0.21 C |
| 1984 | 9.3 C | -0.17 C |
| 1985 | 8.6 C | -0.88 C |
| 1986 | 8.4 C | -1.06 C |
| 1987 | 8.7 C | -0.80 C |
| 1988 | 9.4 C | -0.09 C |
| 1989 | 10.3 C | +0.86 C |
| 1990 | 10.2 C | +0.75 C |
| 1991 | 9.1 C | -0.42 C |
| 1992 | 9.8 C | +0.27 C |
| 1993 | 9.4 C | -0.06 C |
| 1994 | 10.2 C | +0.72 C |
| 1995 | 10.3 C | +0.83 C |
| 1996 | 8.9 C | -0.54 C |
| 1997 | 10.4 C | +0.91 C |
| 1998 | 10.1 C | +0.59 C |
| 1999 | 10.5 C | +0.98 C |
| 2000 | 10.2 C | +0.73 C |
| 2001 | 9.9 C | +0.45 C |
| 2002 | 10.7 C | +1.26 C |
| 2003 | 10.5 C | +1.01 C |
| 2004 | 10.5 C | +0.99 C |
| 2005 | 10.3 C | +0.80 C |
| 2006 | 10.9 C | +1.42 C |
| 2007 | 10.5 C | +1.05 C |
| 2008 | 10.0 C | +0.49 C |
| 2009 | 10.2 C | +0.69 C |
| 2010 | 8.9 C | -0.58 C |
| 2011 | 10.8 C | +1.27 C |
| 2012 | 9.9 C | +0.45 C |
| 2013 | 9.6 C | +0.10 C |
| 2014 | 11.1 C | +1.63 C |
| 2015 | 10.4 C | +0.91 C |
| 2016 | 10.4 C | +0.88 C |
| 2017 | 10.6 C | +1.12 C |
| 2018 | 10.8 C | +1.29 C |
| 2019 | 10.4 C | +0.91 C |
| 2020 | 10.9 C | +1.44 C |
| 2021 | 10.2 C | +0.71 C |
| 2022 | 11.2 C | +1.75 C |
| 2023 | 11.1 C | +1.64 C |
| 2024 | 11.0 C | +1.54 C |
| 2025 | 11.1 C | +1.64 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.2) per decade over 1916 to 2025. In Fahrenheit: 0.3 F (0.2 to 0.4) per decade. The slope is a straight line fitted to 109 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 | 1916 to 2025 | 109 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.3 to 0.4) per decade | 1916 to 2025 | 109 | Rise |
| Mean daily minimum | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.2 to 0.3) per decade | 1916 to 2025 | 109 | 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
1916 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 38.5 C (101.3 F) | 2022 | 29.4 C (84.9 F) | 111 |
| Coldest night (TNn) | -17.0 C (1.4 F) | 1981 | -7.2 C (19.0 F) | 111 |
| Wettest day (Rx1day) | 80.0 mm (3.1 in) | 1936 | 29.0 mm (1.1 in) | 111 |
| Wettest five days (Rx5day) | 109.2 mm (4.3 in) | 2020 | 54.0 mm (2.1 in) | 111 |
| Longest dry spell (CDD) | 83 days | 1920 | 23 days | 111 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1916 | 26.7 C (80.1 F) |
| 1917 | 30.0 C (86.0 F) |
| 1918 | 30.0 C (86.0 F) |
| 1919 | 28.3 C (82.9 F) |
| 1920 | 24.4 C (75.9 F) |
| 1921 | 31.1 C (88.0 F) |
| 1922 | 28.9 C (84.0 F) |
| 1923 | 31.7 C (89.1 F) |
| 1924 | 28.9 C (84.0 F) |
| 1925 | 28.9 C (84.0 F) |
| 1926 | 28.9 C (84.0 F) |
| 1927 | 26.7 C (80.1 F) |
| 1928 | 28.9 C (84.0 F) |
| 1929 | 29.4 C (84.9 F) |
| 1930 | 31.1 C (88.0 F) |
| 1931 | 23.9 C (75.0 F) |
| 1932 | 33.3 C (91.9 F) |
| 1933 | 31.7 C (89.1 F) |
| 1934 | 28.3 C (82.9 F) |
| 1935 | 28.9 C (84.0 F) |
| 1936 | 27.8 C (82.0 F) |
| 1937 | 28.3 C (82.9 F) |
| 1938 | 28.3 C (82.9 F) |
| 1939 | 28.3 C (82.9 F) |
| 1940 | 28.9 C (84.0 F) |
| 1941 | 30.6 C (87.1 F) |
| 1942 | 29.4 C (84.9 F) |
| 1943 | 30.6 C (87.1 F) |
| 1944 | 28.9 C (84.0 F) |
| 1945 | 28.3 C (82.9 F) |
| 1946 | 28.3 C (82.9 F) |
| 1947 | 32.8 C (91.0 F) |
| 1948 | 32.8 C (91.0 F) |
| 1949 | 30.0 C (86.0 F) |
| 1950 | 29.4 C (84.9 F) |
| 1951 | 26.1 C (79.0 F) |
| 1952 | 30.6 C (87.1 F) |
| 1953 | 31.1 C (88.0 F) |
| 1954 | 28.3 C (82.9 F) |
| 1955 | 29.4 C (84.9 F) |
| 1956 | 26.1 C (79.0 F) |
| 1957 | 31.7 C (89.1 F) |
| 1958 | 26.7 C (80.1 F) |
| 1959 | 32.2 C (90.0 F) |
| 1960 | 28.3 C (82.9 F) |
| 1961 | 31.7 C (89.1 F) |
| 1962 | 24.4 C (75.9 F) |
| 1963 | 26.7 C (80.1 F) |
| 1964 | 30.0 C (86.0 F) |
| 1965 | 27.2 C (81.0 F) |
| 1966 | 26.1 C (79.0 F) |
| 1967 | 27.8 C (82.0 F) |
| 1968 | 31.1 C (88.0 F) |
| 1969 | 30.0 C (86.0 F) |
| 1970 | 30.6 C (87.1 F) |
| 1971 | 28.0 C (82.4 F) |
| 1972 | 25.3 C (77.5 F) |
| 1973 | 30.1 C (86.2 F) |
| 1974 | 24.3 C (75.7 F) |
| 1975 | 32.0 C (89.6 F) |
| 1976 | 33.0 C (91.4 F) |
| 1977 | 26.3 C (79.3 F) |
| 1978 | 26.0 C (78.8 F) |
| 1979 | 28.0 C (82.4 F) |
| 1980 | 27.3 C (81.1 F) |
| 1981 | 27.4 C (81.3 F) |
| 1982 | 27.7 C (81.9 F) |
| 1983 | 30.8 C (87.4 F) |
| 1984 | 29.5 C (85.1 F) |
| 1985 | 26.5 C (79.7 F) |
| 1986 | 27.8 C (82.0 F) |
| 1987 | 27.8 C (82.0 F) |
| 1988 | 27.4 C (81.3 F) |
| 1989 | 31.7 C (89.1 F) |
| 1990 | 33.8 C (92.8 F) |
| 1991 | 27.7 C (81.9 F) |
| 1992 | 27.2 C (81.0 F) |
| 1993 | 26.7 C (80.1 F) |
| 1994 | 30.6 C (87.1 F) |
| 1995 | 31.7 C (89.1 F) |
| 1996 | 30.4 C (86.7 F) |
| 1997 | 30.3 C (86.5 F) |
| 1998 | 28.9 C (84.0 F) |
| 1999 | 30.0 C (86.0 F) |
| 2000 | 29.7 C (85.5 F) |
| 2001 | 29.5 C (85.1 F) |
| 2002 | 30.0 C (86.0 F) |
| 2003 | 36.0 C (96.8 F) |
| 2004 | 29.3 C (84.7 F) |
| 2005 | 30.8 C (87.4 F) |
| 2006 | 33.8 C (92.8 F) |
| 2007 | 27.7 C (81.9 F) |
| 2008 | 27.2 C (81.0 F) |
| 2009 | 27.9 C (82.2 F) |
| 2010 | 29.1 C (84.4 F) |
| 2011 | 29.3 C (84.7 F) |
| 2012 | 29.8 C (85.6 F) |
| 2013 | 31.5 C (88.7 F) |
| 2014 | 30.1 C (86.2 F) |
| 2015 | 33.7 C (92.7 F) |
| 2016 | 31.5 C (88.7 F) |
| 2017 | 31.5 C (88.7 F) |
| 2018 | 32.6 C (90.7 F) |
| 2019 | 36.6 C (97.9 F) |
| 2020 | 34.5 C (94.1 F) |
| 2021 | 29.3 C (84.7 F) |
| 2022 | 38.5 C (101.3 F) |
| 2023 | 30.9 C (87.6 F) |
| 2024 | 31.9 C (89.4 F) |
| 2025 | 31.7 C (89.1 F) |
| 2026 | 35.5 C (95.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1916 | -6.7 C (19.9 F) |
| 1917 | -9.4 C (15.1 F) |
| 1918 | -9.4 C (15.1 F) |
| 1919 | -12.2 C (10.0 F) |
| 1920 | -9.4 C (15.1 F) |
| 1921 | -6.1 C (21.0 F) |
| 1922 | -6.7 C (19.9 F) |
| 1923 | -11.1 C (12.0 F) |
| 1924 | -6.7 C (19.9 F) |
| 1925 | -7.2 C (19.0 F) |
| 1926 | -15.6 C (3.9 F) |
| 1927 | -11.7 C (10.9 F) |
| 1928 | -5.6 C (21.9 F) |
| 1929 | -10.6 C (12.9 F) |
| 1930 | -6.1 C (21.0 F) |
| 1931 | -7.8 C (18.0 F) |
| 1932 | -7.2 C (19.0 F) |
| 1933 | -6.1 C (21.0 F) |
| 1934 | -5.6 C (21.9 F) |
| 1935 | -10.6 C (12.9 F) |
| 1936 | -7.8 C (18.0 F) |
| 1937 | -7.8 C (18.0 F) |
| 1938 | -8.3 C (17.1 F) |
| 1939 | -9.4 C (15.1 F) |
| 1940 | -12.8 C (9.0 F) |
| 1941 | -10.0 C (14.0 F) |
| 1942 | -11.7 C (10.9 F) |
| 1943 | -4.4 C (24.1 F) |
| 1944 | -8.3 C (17.1 F) |
| 1945 | -8.9 C (16.0 F) |
| 1946 | -11.7 C (10.9 F) |
| 1947 | -15.6 C (3.9 F) |
| 1948 | -6.7 C (19.9 F) |
| 1949 | -6.7 C (19.9 F) |
| 1950 | -6.1 C (21.0 F) |
| 1951 | -5.6 C (21.9 F) |
| 1952 | -7.8 C (18.0 F) |
| 1953 | -10.0 C (14.0 F) |
| 1954 | -8.9 C (16.0 F) |
| 1955 | -10.6 C (12.9 F) |
| 1956 | -11.7 C (10.9 F) |
| 1957 | -5.6 C (21.9 F) |
| 1958 | -7.2 C (19.0 F) |
| 1959 | -8.3 C (17.1 F) |
| 1960 | -5.6 C (21.9 F) |
| 1961 | -8.9 C (16.0 F) |
| 1962 | -10.6 C (12.9 F) |
| 1963 | -16.7 C (1.9 F) |
| 1964 | -12.8 C (9.0 F) |
| 1965 | -12.2 C (10.0 F) |
| 1966 | -11.1 C (12.0 F) |
| 1967 | -7.8 C (18.0 F) |
| 1968 | -10.0 C (14.0 F) |
| 1969 | -10.0 C (14.0 F) |
| 1970 | -10.0 C (14.0 F) |
| 1971 | -6.6 C (20.1 F) |
| 1972 | -10.2 C (13.6 F) |
| 1973 | -7.5 C (18.5 F) |
| 1974 | -3.6 C (25.5 F) |
| 1975 | -4.6 C (23.7 F) |
| 1976 | -8.9 C (16.0 F) |
| 1977 | -4.9 C (23.2 F) |
| 1978 | -7.0 C (19.4 F) |
| 1979 | -13.1 C (8.4 F) |
| 1980 | -5.9 C (21.4 F) |
| 1981 | -17.0 C (1.4 F) |
| 1982 | -11.7 C (10.9 F) |
| 1983 | -6.5 C (20.3 F) |
| 1984 | -5.6 C (21.9 F) |
| 1985 | -11.1 C (12.0 F) |
| 1986 | -13.6 C (7.5 F) |
| 1987 | -10.7 C (12.7 F) |
| 1988 | -4.2 C (24.4 F) |
| 1989 | -5.7 C (21.7 F) |
| 1990 | -6.2 C (20.8 F) |
| 1991 | -10.2 C (13.6 F) |
| 1992 | -6.1 C (21.0 F) |
| 1993 | -8.3 C (17.1 F) |
| 1994 | -5.9 C (21.4 F) |
| 1995 | -6.5 C (20.3 F) |
| 1996 | -6.5 C (20.3 F) |
| 1997 | -6.1 C (21.0 F) |
| 1998 | -4.3 C (24.3 F) |
| 1999 | -5.2 C (22.6 F) |
| 2000 | -8.8 C (16.2 F) |
| 2001 | -5.0 C (23.0 F) |
| 2002 | -6.1 C (21.0 F) |
| 2003 | -6.0 C (21.2 F) |
| 2004 | -5.1 C (22.8 F) |
| 2005 | -4.9 C (23.2 F) |
| 2006 | -6.1 C (21.0 F) |
| 2007 | -4.5 C (23.9 F) |
| 2008 | -5.2 C (22.6 F) |
| 2009 | -9.0 C (15.8 F) |
| 2010 | -12.4 C (9.7 F) |
| 2011 | -3.9 C (25.0 F) |
| 2012 | -12.7 C (9.1 F) |
| 2013 | -9.1 C (15.6 F) |
| 2014 | -3.2 C (26.2 F) |
| 2015 | -5.5 C (22.1 F) |
| 2016 | -5.2 C (22.6 F) |
| 2017 | -6.4 C (20.5 F) |
| 2018 | -6.6 C (20.1 F) |
| 2019 | -6.7 C (19.9 F) |
| 2020 | -3.2 C (26.2 F) |
| 2021 | -5.1 C (22.8 F) |
| 2022 | -9.0 C (15.8 F) |
| 2023 | -6.5 C (20.3 F) |
| 2024 | -5.1 C (22.8 F) |
| 2025 | -5.4 C (22.3 F) |
| 2026 | -6.3 C (20.7 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1916 | 27.5 mm (1.1 in) |
| 1917 | 28.4 mm (1.1 in) |
| 1918 | 34.0 mm (1.3 in) |
| 1919 | 37.7 mm (1.5 in) |
| 1920 | 19.6 mm (0.8 in) |
| 1921 | 50.5 mm (2.0 in) |
| 1922 | 37.3 mm (1.5 in) |
| 1923 | 38.2 mm (1.5 in) |
| 1924 | 28.2 mm (1.1 in) |
| 1925 | 34.3 mm (1.4 in) |
| 1926 | 21.1 mm (0.8 in) |
| 1927 | 39.9 mm (1.6 in) |
| 1928 | 19.8 mm (0.8 in) |
| 1929 | 25.3 mm (1.0 in) |
| 1930 | 21.1 mm (0.8 in) |
| 1931 | 28.9 mm (1.1 in) |
| 1932 | 20.3 mm (0.8 in) |
| 1933 | 15.7 mm (0.6 in) |
| 1934 | 24.9 mm (1.0 in) |
| 1935 | 29.0 mm (1.1 in) |
| 1936 | 80.0 mm (3.1 in) |
| 1937 | 28.2 mm (1.1 in) |
| 1938 | 20.1 mm (0.8 in) |
| 1939 | 24.4 mm (1.0 in) |
| 1940 | 31.8 mm (1.3 in) |
| 1941 | 25.4 mm (1.0 in) |
| 1942 | 21.3 mm (0.8 in) |
| 1943 | 30.2 mm (1.2 in) |
| 1944 | 24.6 mm (1.0 in) |
| 1945 | 45.7 mm (1.8 in) |
| 1946 | 25.4 mm (1.0 in) |
| 1947 | 25.7 mm (1.0 in) |
| 1948 | 23.6 mm (0.9 in) |
| 1949 | 37.1 mm (1.5 in) |
| 1950 | 35.3 mm (1.4 in) |
| 1951 | 22.4 mm (0.9 in) |
| 1952 | 35.8 mm (1.4 in) |
| 1953 | 27.4 mm (1.1 in) |
| 1954 | 31.0 mm (1.2 in) |
| 1955 | 27.9 mm (1.1 in) |
| 1956 | 23.6 mm (0.9 in) |
| 1957 | 24.1 mm (0.9 in) |
| 1958 | 29.0 mm (1.1 in) |
| 1959 | 59.4 mm (2.3 in) |
| 1960 | 37.3 mm (1.5 in) |
| 1961 | 27.7 mm (1.1 in) |
| 1962 | 24.9 mm (1.0 in) |
| 1963 | 37.6 mm (1.5 in) |
| 1964 | 25.1 mm (1.0 in) |
| 1965 | 22.4 mm (0.9 in) |
| 1966 | 31.0 mm (1.2 in) |
| 1967 | 34.8 mm (1.4 in) |
| 1968 | 64.3 mm (2.5 in) |
| 1969 | 27.2 mm (1.1 in) |
| 1970 | 22.4 mm (0.9 in) |
| 1971 | 30.5 mm (1.2 in) |
| 1972 | 28.4 mm (1.1 in) |
| 1973 | 35.0 mm (1.4 in) |
| 1974 | 33.4 mm (1.3 in) |
| 1975 | 48.7 mm (1.9 in) |
| 1976 | 35.6 mm (1.4 in) |
| 1977 | 28.7 mm (1.1 in) |
| 1978 | 34.7 mm (1.4 in) |
| 1979 | 47.5 mm (1.9 in) |
| 1980 | 31.0 mm (1.2 in) |
| 1981 | 28.3 mm (1.1 in) |
| 1982 | 28.4 mm (1.1 in) |
| 1983 | 24.7 mm (1.0 in) |
| 1984 | 25.9 mm (1.0 in) |
| 1985 | 26.7 mm (1.1 in) |
| 1986 | 34.1 mm (1.3 in) |
| 1987 | 55.1 mm (2.2 in) |
| 1988 | 24.8 mm (1.0 in) |
| 1989 | 35.8 mm (1.4 in) |
| 1990 | 36.0 mm (1.4 in) |
| 1991 | 34.1 mm (1.3 in) |
| 1992 | 64.4 mm (2.5 in) |
| 1993 | 56.8 mm (2.2 in) |
| 1994 | 24.4 mm (1.0 in) |
| 1995 | 24.7 mm (1.0 in) |
| 1996 | 34.2 mm (1.3 in) |
| 1997 | 31.9 mm (1.3 in) |
| 1998 | 26.6 mm (1.0 in) |
| 1999 | 35.8 mm (1.4 in) |
| 2000 | 40.6 mm (1.6 in) |
| 2001 | 28.6 mm (1.1 in) |
| 2002 | 28.8 mm (1.1 in) |
| 2003 | 25.0 mm (1.0 in) |
| 2004 | 30.4 mm (1.2 in) |
| 2005 | 25.2 mm (1.0 in) |
| 2006 | 26.2 mm (1.0 in) |
| 2007 | 43.2 mm (1.7 in) |
| 2008 | 32.0 mm (1.3 in) |
| 2009 | 33.6 mm (1.3 in) |
| 2010 | 31.8 mm (1.3 in) |
| 2011 | 20.0 mm (0.8 in) |
| 2012 | 32.4 mm (1.3 in) |
| 2013 | 33.6 mm (1.3 in) |
| 2014 | 31.6 mm (1.2 in) |
| 2015 | 52.8 mm (2.1 in) |
| 2016 | 30.8 mm (1.2 in) |
| 2017 | 21.8 mm (0.9 in) |
| 2018 | 30.0 mm (1.2 in) |
| 2019 | 24.8 mm (1.0 in) |
| 2020 | 59.8 mm (2.4 in) |
| 2021 | 23.8 mm (0.9 in) |
| 2022 | 27.8 mm (1.1 in) |
| 2023 | 33.8 mm (1.3 in) |
| 2024 | 58.2 mm (2.3 in) |
| 2025 | 21.6 mm (0.9 in) |
| 2026 | 18.8 mm (0.7 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1916 | 54.5 mm (2.1 in) |
| 1917 | 97.0 mm (3.8 in) |
| 1918 | 55.3 mm (2.2 in) |
| 1919 | 64.5 mm (2.5 in) |
| 1920 | 40.4 mm (1.6 in) |
| 1921 | 64.3 mm (2.5 in) |
| 1922 | 47.7 mm (1.9 in) |
| 1923 | 57.3 mm (2.3 in) |
| 1924 | 45.5 mm (1.8 in) |
| 1925 | 61.3 mm (2.4 in) |
| 1926 | 58.4 mm (2.3 in) |
| 1927 | 59.0 mm (2.3 in) |
| 1928 | 42.8 mm (1.7 in) |
| 1929 | 55.9 mm (2.2 in) |
| 1930 | 51.7 mm (2.0 in) |
| 1931 | 43.9 mm (1.7 in) |
| 1932 | 47.9 mm (1.9 in) |
| 1933 | 36.3 mm (1.4 in) |
| 1934 | 33.0 mm (1.3 in) |
| 1935 | 47.3 mm (1.9 in) |
| 1936 | 93.2 mm (3.7 in) |
| 1937 | 46.5 mm (1.8 in) |
| 1938 | 37.2 mm (1.5 in) |
| 1939 | 44.6 mm (1.8 in) |
| 1940 | 74.4 mm (2.9 in) |
| 1941 | 65.7 mm (2.6 in) |
| 1942 | 38.6 mm (1.5 in) |
| 1943 | 54.3 mm (2.1 in) |
| 1944 | 41.5 mm (1.6 in) |
| 1945 | 51.6 mm (2.0 in) |
| 1946 | 51.5 mm (2.0 in) |
| 1947 | 38.2 mm (1.5 in) |
| 1948 | 44.8 mm (1.8 in) |
| 1949 | 80.4 mm (3.2 in) |
| 1950 | 50.6 mm (2.0 in) |
| 1951 | 47.0 mm (1.9 in) |
| 1952 | 70.8 mm (2.8 in) |
| 1953 | 58.7 mm (2.3 in) |
| 1954 | 54.4 mm (2.1 in) |
| 1955 | 54.4 mm (2.1 in) |
| 1956 | 57.2 mm (2.3 in) |
| 1957 | 39.1 mm (1.5 in) |
| 1958 | 58.5 mm (2.3 in) |
| 1959 | 74.6 mm (2.9 in) |
| 1960 | 62.4 mm (2.5 in) |
| 1961 | 46.2 mm (1.8 in) |
| 1962 | 46.2 mm (1.8 in) |
| 1963 | 51.4 mm (2.0 in) |
| 1964 | 46.8 mm (1.8 in) |
| 1965 | 44.5 mm (1.8 in) |
| 1966 | 48.1 mm (1.9 in) |
| 1967 | 58.5 mm (2.3 in) |
| 1968 | 81.8 mm (3.2 in) |
| 1969 | 43.2 mm (1.7 in) |
| 1970 | 56.3 mm (2.2 in) |
| 1971 | 54.6 mm (2.1 in) |
| 1972 | 62.6 mm (2.5 in) |
| 1973 | 44.2 mm (1.7 in) |
| 1974 | 75.0 mm (3.0 in) |
| 1975 | 61.0 mm (2.4 in) |
| 1976 | 53.5 mm (2.1 in) |
| 1977 | 53.6 mm (2.1 in) |
| 1978 | 52.3 mm (2.1 in) |
| 1979 | 56.3 mm (2.2 in) |
| 1980 | 43.0 mm (1.7 in) |
| 1981 | 39.6 mm (1.6 in) |
| 1982 | 50.5 mm (2.0 in) |
| 1983 | 40.2 mm (1.6 in) |
| 1984 | 48.8 mm (1.9 in) |
| 1985 | 58.4 mm (2.3 in) |
| 1986 | 74.0 mm (2.9 in) |
| 1987 | 93.5 mm (3.7 in) |
| 1988 | 55.5 mm (2.2 in) |
| 1989 | 77.7 mm (3.1 in) |
| 1990 | 56.0 mm (2.2 in) |
| 1991 | 51.1 mm (2.0 in) |
| 1992 | 88.0 mm (3.5 in) |
| 1993 | 108.0 mm (4.3 in) |
| 1994 | 48.8 mm (1.9 in) |
| 1995 | 63.6 mm (2.5 in) |
| 1996 | 42.4 mm (1.7 in) |
| 1997 | 59.1 mm (2.3 in) |
| 1998 | 61.6 mm (2.4 in) |
| 1999 | 58.9 mm (2.3 in) |
| 2000 | 62.2 mm (2.4 in) |
| 2001 | 47.6 mm (1.9 in) |
| 2002 | 47.0 mm (1.9 in) |
| 2003 | 66.1 mm (2.6 in) |
| 2004 | 48.4 mm (1.9 in) |
| 2005 | 41.4 mm (1.6 in) |
| 2006 | 54.0 mm (2.1 in) |
| 2007 | 67.4 mm (2.7 in) |
| 2008 | 73.2 mm (2.9 in) |
| 2009 | 56.8 mm (2.2 in) |
| 2010 | 67.0 mm (2.6 in) |
| 2011 | 31.2 mm (1.2 in) |
| 2012 | 62.6 mm (2.5 in) |
| 2013 | 54.0 mm (2.1 in) |
| 2014 | 55.4 mm (2.2 in) |
| 2015 | 56.8 mm (2.2 in) |
| 2016 | 42.4 mm (1.7 in) |
| 2017 | 51.8 mm (2.0 in) |
| 2018 | 47.4 mm (1.9 in) |
| 2019 | 38.8 mm (1.5 in) |
| 2020 | 109.2 mm (4.3 in) |
| 2021 | 50.6 mm (2.0 in) |
| 2022 | 54.0 mm (2.1 in) |
| 2023 | 47.6 mm (1.9 in) |
| 2024 | 106.0 mm (4.2 in) |
| 2025 | 45.6 mm (1.8 in) |
| 2026 | 38.2 mm (1.5 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1916 | 21 days |
| 1917 | 23 days |
| 1918 | 23 days |
| 1919 | 15 days |
| 1920 | 83 days |
| 1921 | 39 days |
| 1922 | 18 days |
| 1923 | 13 days |
| 1924 | 19 days |
| 1925 | 23 days |
| 1926 | 31 days |
| 1927 | 19 days |
| 1928 | 22 days |
| 1929 | 42 days |
| 1930 | 20 days |
| 1931 | 23 days |
| 1932 | 37 days |
| 1933 | 30 days |
| 1934 | 21 days |
| 1935 | 18 days |
| 1936 | 21 days |
| 1937 | 26 days |
| 1938 | 36 days |
| 1939 | 23 days |
| 1940 | 28 days |
| 1941 | 29 days |
| 1942 | 30 days |
| 1943 | 36 days |
| 1944 | 31 days |
| 1945 | 23 days |
| 1946 | 18 days |
| 1947 | 53 days |
| 1948 | 23 days |
| 1949 | 30 days |
| 1950 | 18 days |
| 1951 | 22 days |
| 1952 | 20 days |
| 1953 | 40 days |
| 1954 | 28 days |
| 1955 | 38 days |
| 1956 | 15 days |
| 1957 | 14 days |
| 1958 | 14 days |
| 1959 | 37 days |
| 1960 | 28 days |
| 1961 | 29 days |
| 1962 | 22 days |
| 1963 | 24 days |
| 1964 | 20 days |
| 1965 | 16 days |
| 1966 | 21 days |
| 1967 | 23 days |
| 1968 | 20 days |
| 1969 | 33 days |
| 1970 | 14 days |
| 1971 | 25 days |
| 1972 | 30 days |
| 1973 | 20 days |
| 1974 | 16 days |
| 1975 | 19 days |
| 1976 | 38 days |
| 1977 | 18 days |
| 1978 | 22 days |
| 1979 | 16 days |
| 1980 | 23 days |
| 1981 | 18 days |
| 1982 | 21 days |
| 1983 | 18 days |
| 1984 | 34 days |
| 1985 | 26 days |
| 1986 | 28 days |
| 1987 | 25 days |
| 1988 | 17 days |
| 1989 | 30 days |
| 1990 | 40 days |
| 1991 | 27 days |
| 1992 | 18 days |
| 1993 | 25 days |
| 1994 | 20 days |
| 1995 | 30 days |
| 1996 | 20 days |
| 1997 | 20 days |
| 1998 | 18 days |
| 1999 | 25 days |
| 2000 | 58 days |
| 2001 | 23 days |
| 2002 | 31 days |
| 2003 | 27 days |
| 2004 | 17 days |
| 2005 | 18 days |
| 2006 | 18 days |
| 2007 | 37 days |
| 2008 | 18 days |
| 2009 | 18 days |
| 2010 | 24 days |
| 2011 | 31 days |
| 2012 | 16 days |
| 2013 | 21 days |
| 2014 | 16 days |
| 2015 | 21 days |
| 2016 | 18 days |
| 2017 | 35 days |
| 2018 | 22 days |
| 2019 | 18 days |
| 2020 | 34 days |
| 2021 | 23 days |
| 2022 | 27 days |
| 2023 | 30 days |
| 2024 | 22 days |
| 2025 | 30 days |
| 2026 | 32 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
109 years with a frostAcross 109 years with a frost, the median last spring frost at Rothamsted falls on 27 April and the median first autumn frost on 30 October, which leaves a median of 188 days between them.
In 1996 to 2025 the median growing season was 208 days. That is 34 days more than in 1916 to 1945.
Fitted over all years, the growing season changes by +4.3 days per decade at this station.
| Measure | Median, all years | Earliest period (1916 to 1945) | Recent period (1996 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 27 April | 30 April | 16 April | 14 days earlier | -1.9 days per decade |
| First autumn frost | 30 October | 23 October | 10 November | 18 days later | +2.4 days per decade |
| Growing days | 188 days | 174 days | 208 days | 34 days more | +4.3 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
110 years, 1916 to 2025A day with at least 29.5 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 75.3 mm (3.0 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 29.5 mm (1.2 in) | |
| 5 years | 38.2 mm (1.5 in) | |
| 10 years | 45.1 mm (1.8 in) | |
| 25 years | 55.6 mm (2.2 in) | |
| 50 years | 64.8 mm (2.6 in) | |
| 100 years | 75.3 mm (3.0 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 110 years of values from 1916 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: 80.0 mm (3.1 in) in 1936; 64.4 mm (2.5 in) in 1992; 64.3 mm (2.5 in) in 1968.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Rothamsted had a mean temperature of 10.6 C (51.1 F) and 700.9 mm (27.6 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Caen-Carpiquet (France, 292 km away), Hayling Island (United Kingdom, 122 km away) and Alencon-Valframbert (France, 374 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Caen-Carpiquet | France | 292 km (181 mi) | 10.5 C (50.9 F) | 710.9 mm (28.0 in) | 0.41 |
| Hayling Island | United Kingdom | 122 km (76 mi) | 10.6 C (51.1 F) | 667.0 mm (26.3 in) | 0.48 |
| Alencon-Valframbert | France | 374 km (232 mi) | 10.4 C (50.8 F) | 735.7 mm (29.0 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.
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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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-14).