San Francisco Dwtn Weather Records (USW00023272)
Record envelope, standing records and threshold days for San Francisco Dwtn (USW00023272), California, United States, with 106 years of record.
Key Facts for San Francisco Dwtn
- San Francisco Dwtn (USW00023272) is a weather station in California, United States at 37.77 latitude and -122.43 longitude, 46 m (150 ft) above sea level.
- The station reports from 1921 to 2026, 106 years of record.
- 1,464 records set at San Francisco Dwtn still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- San Francisco Dwtn set a daily record high minimum temperature of 18.3 C (64.9 F) on 9 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: California, United States, 37.77 latitude, -122.43 longitude.
- Elevation: 46 m (150 ft).
- Period of record: 1921 to 2026, 106 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
7 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 26.1 C (79.0 F) | -1.1 C (30.0 F) | 21.7 C (71.1 F) | 6.7 C (44.1 F) |
| Feb | 27.2 C (81.0 F) | -0.6 C (30.9 F) | 24.4 C (75.9 F) | 5.0 C (41.0 F) |
| Mar | 32.2 C (90.0 F) | 1.7 C (35.1 F) | 32.2 C (90.0 F) | 8.9 C (48.0 F) |
| Apr | 34.4 C (93.9 F) | 4.4 C (39.9 F) | 26.7 C (80.1 F) | 8.9 C (48.0 F) |
| May | 36.1 C (97.0 F) | 6.1 C (43.0 F) | 27.2 C (81.0 F) | 10.0 C (50.0 F) |
| Jun | 39.4 C (102.9 F) | 8.3 C (46.9 F) | 31.7 C (89.1 F) | 10.0 C (50.0 F) |
| Jul | 37.2 C (99.0 F) | 8.3 C (46.9 F) | 29.4 C (84.9 F) | 11.7 C (53.1 F) |
| Aug | 36.7 C (98.1 F) | 8.9 C (48.0 F) | 23.9 C (75.0 F) | 12.8 C (55.0 F) |
| Sep | 41.1 C (106.0 F) | 8.9 C (48.0 F) | 34.4 C (93.9 F) | 12.2 C (54.0 F) |
| Oct | 38.9 C (102.0 F) | 6.1 C (43.0 F) | 32.8 C (91.0 F) | 10.6 C (51.1 F) |
| Nov | 30.0 C (86.0 F) | 3.9 C (39.0 F) | n/a | n/a |
| Dec | 24.4 C (75.9 F) | -2.8 C (27.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1921 | 23 |
| 1922 | 19 |
| 1923 | 12 |
| 1924 | 23 |
| 1925 | 6 |
| 1926 | 23 |
| 1927 | 7 |
| 1928 | 11 |
| 1929 | 24 |
| 1930 | 11 |
| 1931 | 20 |
| 1932 | 21 |
| 1933 | 16 |
| 1934 | 8 |
| 1935 | 24 |
| 1936 | 13 |
| 1937 | 24 |
| 1938 | 9 |
| 1939 | 14 |
| 1940 | 6 |
| 1941 | 9 |
| 1942 | 5 |
| 1943 | 14 |
| 1944 | 9 |
| 1945 | 11 |
| 1946 | 9 |
| 1947 | 14 |
| 1948 | 10 |
| 1949 | 34 |
| 1950 | 17 |
| 1951 | 18 |
| 1952 | 21 |
| 1953 | 21 |
| 1954 | 20 |
| 1955 | 49 |
| 1956 | 7 |
| 1957 | 3 |
| 1958 | 8 |
| 1959 | 14 |
| 1960 | 10 |
| 1961 | 16 |
| 1962 | 21 |
| 1963 | 17 |
| 1964 | 23 |
| 1965 | 12 |
| 1966 | 22 |
| 1967 | 18 |
| 1968 | 13 |
| 1969 | 10 |
| 1970 | 25 |
| 1971 | 17 |
| 1972 | 24 |
| 1973 | 11 |
| 1974 | 12 |
| 1975 | 11 |
| 1976 | 16 |
| 1977 | 10 |
| 1978 | 9 |
| 1979 | 9 |
| 1980 | 11 |
| 1981 | 6 |
| 1982 | 11 |
| 1983 | 8 |
| 1984 | 13 |
| 1985 | 23 |
| 1986 | 19 |
| 1987 | 14 |
| 1988 | 19 |
| 1989 | 20 |
| 1990 | 17 |
| 1991 | 9 |
| 1992 | 11 |
| 1993 | 18 |
| 1994 | 7 |
| 1995 | 11 |
| 1996 | 25 |
| 1997 | 12 |
| 1998 | 10 |
| 1999 | 20 |
| 2000 | 10 |
| 2001 | 10 |
| 2002 | 10 |
| 2003 | 16 |
| 2004 | 15 |
| 2005 | 8 |
| 2006 | 16 |
| 2007 | 5 |
| 2008 | 13 |
| 2009 | 17 |
| 2010 | 13 |
| 2011 | 9 |
| 2012 | 8 |
| 2013 | 3 |
| 2014 | 10 |
| 2015 | 16 |
| 2016 | 7 |
| 2017 | 13 |
| 2018 | 5 |
| 2019 | 8 |
| 2020 | 11 |
| 2021 | 5 |
| 2022 | 7 |
| 2023 | 12 |
| 2024 | 6 |
| 2025 | 3 |
| 2026 | 11 |
All-Time Record Progression
8 new records| Date | Kind | Detail |
|---|---|---|
| 1956-01-14 | Record daily precipitation | Record daily precipitation 81.8 mm (3.2 in) |
| 1971-09-14 | Record high maximum temperature | Record high maximum temperature 38.3 C (100.9 F) |
| 1982-01-04 | Record daily precipitation | Record daily precipitation 99.1 mm (3.9 in) |
| 1987-10-05 | Record high maximum temperature | Record high maximum temperature 38.9 C (102.0 F) |
| 1994-11-05 | Record daily precipitation | Record daily precipitation 140.7 mm (5.5 in) |
| 2000-06-14 | Record high maximum temperature | Record high maximum temperature 39.4 C (102.9 F) |
| 2017-09-01 | Record high maximum temperature | Record high maximum temperature 41.1 C (106.0 F) |
| 2017-09-02 | Record high minimum temperature | Record high minimum temperature 23.9 C (75.0 F) |
Wettest Day of Each Month
Nov: 140.7 mm (5.5 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 99.1 mm (3.9 in) | 4 January 1982 |
| Feb | 74.4 mm (2.9 in) | 2 February 1998 |
| Mar | 65.3 mm (2.6 in) | 31 March 1982 |
| Apr | 56.4 mm (2.2 in) | 6 April 2018 |
| May | 36.1 mm (1.4 in) | 27 May 1990 |
| Jun | 34.0 mm (1.3 in) | 2 June 1967 |
| Jul | 18.3 mm (0.7 in) | 8 July 1974 |
| Aug | 13.7 mm (0.5 in) | 19 August 1997 |
| Sep | 51.1 mm (2.0 in) | 18 September 1959 |
| Oct | 102.1 mm (4.0 in) | 24 October 2021 |
| Nov | 140.7 mm (5.5 in) | 5 November 1994 |
| Dec | 138.7 mm (5.5 in) | 31 December 2022 |
Period of Record Coverage
1921 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1921 | 365 | 100% | Yes |
| 1922 | 365 | 100% | Yes |
| 1923 | 365 | 100% | Yes |
| 1924 | 366 | 100% | Yes |
| 1925 | 365 | 100% | Yes |
| 1926 | 365 | 100% | Yes |
| 1927 | 365 | 100% | Yes |
| 1928 | 366 | 100% | Yes |
| 1929 | 365 | 100% | Yes |
| 1930 | 365 | 100% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 365 | 100% | Yes |
| 1934 | 365 | 100% | Yes |
| 1935 | 365 | 100% | Yes |
| 1936 | 366 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 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 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 364 | 100% | Yes |
| 1984 | 365 | 100% | Yes |
| 1985 | 364 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 364 | 99% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 361 | 99% | Yes |
| 1994 | 364 | 100% | Yes |
| 1995 | 362 | 99% | Yes |
| 1996 | 363 | 99% | Yes |
| 1997 | 363 | 99% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 364 | 100% | Yes |
| 2002 | 364 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 365 | 100% | Yes |
| 2009 | 364 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 364 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 365 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 346 | 95% | Yes |
| 2024 | 335 | 92% | Yes |
| 2025 | 357 | 98% | Yes |
| 2026 | 287 | 79% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 9 September 2026 | San Francisco Dwtn, US | daily high min (Provisional) | 18.3 C (64.9 F) | 0.5 C (0.9 F) | 49 years | 27 of 100 (Routine) |
| 21 July 2026 | San Francisco Dwtn, US | daily high max | 29.4 C (84.9 F) | 3.8 C (6.8 F) | 87 years | 48 of 100 (Notable) |
| 28 May 2026 | San Francisco Dwtn, US | daily rain | 15.2 mm (0.6 in) | 0.2 mm (0.01 in) | 28 years | 18 of 100 (Routine) |
| 20 April 2026 | San Francisco Dwtn, US | daily rain | 23.6 mm (0.9 in) | 0.5 mm (0.02 in) | 24 years | 17 of 100 (Routine) |
| 30 March 2026 | San Francisco Dwtn, US | daily high min (Tie) | 13.9 C (57.0 F) | tie | 76 years | 8 of 100 (Routine) |
| 29 March 2026 | San Francisco Dwtn, US | daily high max | 28.3 C (82.9 F) | 1.1 C (2.0 F) | 8 years | 15 of 100 (Routine) |
| 20 March 2026 | San Francisco Dwtn, US | daily high min | 15.6 C (60.1 F) | 2.3 C (4.1 F) | 33 years | 32 of 100 (Routine) |
| 20 March 2026 | San Francisco Dwtn, US | monthly high max | 32.2 C (90.0 F) | 1.6 C (2.9 F) | 21 years | 30 of 100 (Routine) |
| 19 March 2026 | San Francisco Dwtn, US | daily high max | 30.0 C (86.0 F) | 3.3 C (5.9 F) | 16 years | 23 of 100 (Routine) |
| 18 March 2026 | San Francisco Dwtn, US | daily high max | 28.9 C (84.0 F) | 1.7 C (3.1 F) | 21 years | 20 of 100 (Routine) |
| 17 March 2026 | San Francisco Dwtn, US | daily high max | 30.0 C (86.0 F) | 1.1 C (2.0 F) | 21 years | 19 of 100 (Routine) |
| 16 March 2026 | San Francisco Dwtn, US | daily high max (Tie) | 28.9 C (84.0 F) | tie | 21 years | 4 of 100 (Routine) |
| 7 March 2026 | San Francisco Dwtn, US | daily high min (Tie) | 14.4 C (57.9 F) | tie | 40 years | 5 of 100 (Routine) |
| 6 March 2026 | San Francisco Dwtn, US | daily high min | 12.8 C (55.0 F) | 0.6 C (1.1 F) | 100 years | 43 of 100 (Notable) |
| 1 March 2026 | San Francisco Dwtn, US | daily high min (Tie) | 13.3 C (55.9 F) | tie | 100 years | 10 of 100 (Routine) |
| 27 February 2026 | San Francisco Dwtn, US | daily high min | 14.4 C (57.9 F) | 0.5 C (0.9 F) | 103 years | 42 of 100 (Notable) |
| 24 February 2026 | San Francisco Dwtn, US | daily high min | 14.4 C (57.9 F) | 0.5 C (0.9 F) | 68 years | 32 of 100 (Routine) |
| 3 January 2026 | San Francisco Dwtn, US | daily high min | 13.3 C (55.9 F) | 1.1 C (2.0 F) | 40 years | 26 of 100 (Routine) |
| 21 December 2025 | San Francisco Dwtn, US | daily high min (Tie) | 14.4 C (57.9 F) | tie | 60 years | 7 of 100 (Routine) |
| 30 November 2025 | San Francisco Dwtn, US | daily low max | 10.0 C (50.0 F) | 0.6 C (1.1 F) | 103 years | 41 of 100 (Notable) |
Climate Trend
103 complete years, 1921 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1921 | 13.8 C | -0.33 C |
| 1922 | 13.3 C | -0.89 C |
| 1923 | 14.1 C | -0.05 C |
| 1924 | 13.8 C | -0.30 C |
| 1925 | 14.4 C | +0.27 C |
| 1926 | 14.9 C | +0.74 C |
| 1927 | 14.0 C | -0.13 C |
| 1928 | 13.9 C | -0.21 C |
| 1929 | 14.1 C | -0.09 C |
| 1930 | 14.4 C | +0.25 C |
| 1931 | 14.6 C | +0.49 C |
| 1932 | 14.0 C | -0.19 C |
| 1933 | 13.5 C | -0.66 C |
| 1934 | 14.9 C | +0.78 C |
| 1935 | 14.0 C | -0.18 C |
| 1936 | 14.7 C | +0.51 C |
| 1937 | 13.6 C | -0.55 C |
| 1938 | 13.6 C | -0.51 C |
| 1939 | 14.2 C | +0.02 C |
| 1940 | 14.6 C | +0.50 C |
| 1941 | 14.7 C | +0.60 C |
| 1942 | 13.6 C | -0.52 C |
| 1943 | 14.2 C | +0.03 C |
| 1944 | 13.5 C | -0.67 C |
| 1945 | 13.7 C | -0.42 C |
| 1946 | 13.4 C | -0.77 C |
| 1947 | 14.0 C | -0.14 C |
| 1948 | 13.2 C | -0.93 C |
| 1949 | 13.0 C | -1.11 C |
| 1950 | 13.5 C | -0.67 C |
| 1951 | 12.9 C | -1.21 C |
| 1952 | 13.0 C | -1.11 C |
| 1953 | 13.8 C | -0.39 C |
| 1954 | 13.5 C | -0.63 C |
| 1955 | 12.9 C | -1.26 C |
| 1956 | 13.6 C | -0.55 C |
| 1957 | 14.0 C | -0.11 C |
| 1958 | 14.9 C | +0.73 C |
| 1959 | 14.8 C | +0.70 C |
| 1960 | 13.5 C | -0.60 C |
| 1961 | 13.8 C | -0.31 C |
| 1962 | 13.4 C | -0.78 C |
| 1963 | 13.9 C | -0.23 C |
| 1964 | 13.6 C | -0.57 C |
| 1965 | 13.6 C | -0.55 C |
| 1966 | 13.8 C | -0.36 C |
| 1967 | 13.8 C | -0.30 C |
| 1968 | 13.9 C | -0.27 C |
| 1969 | 13.6 C | -0.56 C |
| 1970 | 13.9 C | -0.29 C |
| 1971 | 13.1 C | -1.06 C |
| 1972 | 13.4 C | -0.76 C |
| 1973 | 13.6 C | -0.58 C |
| 1974 | 13.5 C | -0.69 C |
| 1975 | 13.2 C | -0.91 C |
| 1976 | 14.2 C | +0.10 C |
| 1977 | 13.9 C | -0.25 C |
| 1978 | 14.5 C | +0.34 C |
| 1979 | 14.5 C | +0.36 C |
| 1980 | 14.1 C | -0.04 C |
| 1981 | 14.0 C | -0.11 C |
| 1982 | 13.4 C | -0.72 C |
| 1983 | 14.9 C | +0.79 C |
| 1984 | 14.6 C | +0.42 C |
| 1985 | 14.7 C | +0.58 C |
| 1986 | 15.6 C | +1.47 C |
| 1987 | 15.2 C | +1.05 C |
| 1988 | 15.1 C | +0.98 C |
| 1989 | 14.6 C | +0.44 C |
| 1990 | 14.9 C | +0.74 C |
| 1991 | 14.7 C | +0.58 C |
| 1992 | 16.0 C | +1.86 C |
| 1993 | 15.4 C | +1.29 C |
| 1994 | 14.3 C | +0.11 C |
| 1995 | 15.4 C | +1.29 C |
| 1996 | 15.7 C | +1.54 C |
| 1997 | 15.6 C | +1.41 C |
| 1998 | 13.8 C | -0.35 C |
| 1999 | 13.4 C | -0.73 C |
| 2000 | 14.0 C | -0.10 C |
| 2001 | 14.2 C | +0.08 C |
| 2002 | 13.8 C | -0.30 C |
| 2003 | 14.6 C | +0.43 C |
| 2004 | 14.6 C | +0.47 C |
| 2005 | 14.4 C | +0.26 C |
| 2006 | 13.7 C | -0.40 C |
| 2007 | 14.0 C | -0.12 C |
| 2008 | 14.1 C | -0.09 C |
| 2009 | 14.1 C | -0.01 C |
| 2010 | 13.8 C | -0.32 C |
| 2011 | 13.7 C | -0.42 C |
| 2012 | 13.8 C | -0.37 C |
| 2013 | 14.1 C | -0.03 C |
| 2014 | 15.5 C | +1.36 C |
| 2015 | 15.4 C | +1.26 C |
| 2016 | 14.7 C | +0.57 C |
| 2017 | 14.9 C | +0.76 C |
| 2018 | 14.4 C | +0.24 C |
| 2019 | 14.6 C | +0.50 C |
| 2020 | 14.9 C | +0.74 C |
| 2021 | 13.9 C | -0.27 C |
| 2022 | 14.2 C | +0.09 C |
| 2025 | 14.2 C | +0.09 C |
The annual mean temperature here has risen by 0.08 C (0.03 to 0.12) per decade over 1921 to 2025. In Fahrenheit: 0.1 F (0.1 to 0.2) per decade. The slope is a straight line fitted to 103 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.08 C (0.03 to 0.12) per decade | 0.1 F (0.1 to 0.2) per decade | 1921 to 2025 | 103 | Rise |
| Mean daily maximum | 0.10 C (0.04 to 0.16) per decade | 0.2 F (0.1 to 0.3) per decade | 1921 to 2025 | 103 | Rise |
| Mean daily minimum | 0.05 C (0.02 to 0.08) per decade | 0.09 F (0.03 to 0.15) per decade | 1921 to 2025 | 103 | 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
1921 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 41.1 C (106.0 F) | 2017 | 33.3 C (91.9 F) | 106 |
| Coldest night (TNn) | -2.8 C (27.0 F) | 1932 | 3.9 C (39.0 F) | 106 |
| Wettest day (Rx1day) | 140.7 mm (5.5 in) | 1994 | 46.5 mm (1.8 in) | 106 |
| Wettest five days (Rx5day) | 217.2 mm (8.6 in) | 2022 | 95.8 mm (3.8 in) | 106 |
| Longest dry spell (CDD) | 189 days | 1955 | 114 days | 106 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1921 | 34.4 C (93.9 F) |
| 1922 | 32.8 C (91.0 F) |
| 1923 | 30.6 C (87.1 F) |
| 1924 | 31.1 C (88.0 F) |
| 1925 | 35.0 C (95.0 F) |
| 1926 | 31.7 C (89.1 F) |
| 1927 | 33.9 C (93.0 F) |
| 1928 | 37.2 C (99.0 F) |
| 1929 | 35.0 C (95.0 F) |
| 1930 | 33.3 C (91.9 F) |
| 1931 | 37.2 C (99.0 F) |
| 1932 | 37.8 C (100.0 F) |
| 1933 | 33.3 C (91.9 F) |
| 1934 | 35.0 C (95.0 F) |
| 1935 | 31.7 C (89.1 F) |
| 1936 | 32.8 C (91.0 F) |
| 1937 | 31.7 C (89.1 F) |
| 1938 | 31.7 C (89.1 F) |
| 1939 | 36.1 C (97.0 F) |
| 1940 | 28.9 C (84.0 F) |
| 1941 | 31.7 C (89.1 F) |
| 1942 | 33.9 C (93.0 F) |
| 1943 | 35.6 C (96.1 F) |
| 1944 | 32.8 C (91.0 F) |
| 1945 | 30.6 C (87.1 F) |
| 1946 | 32.8 C (91.0 F) |
| 1947 | 33.3 C (91.9 F) |
| 1948 | 28.9 C (84.0 F) |
| 1949 | 33.3 C (91.9 F) |
| 1950 | 32.2 C (90.0 F) |
| 1951 | 31.7 C (89.1 F) |
| 1952 | 32.2 C (90.0 F) |
| 1953 | 31.7 C (89.1 F) |
| 1954 | 33.9 C (93.0 F) |
| 1955 | 31.1 C (88.0 F) |
| 1956 | 32.8 C (91.0 F) |
| 1957 | 31.1 C (88.0 F) |
| 1958 | 33.3 C (91.9 F) |
| 1959 | 33.3 C (91.9 F) |
| 1960 | 31.7 C (89.1 F) |
| 1961 | 34.4 C (93.9 F) |
| 1962 | 31.1 C (88.0 F) |
| 1963 | 31.1 C (88.0 F) |
| 1964 | 33.3 C (91.9 F) |
| 1965 | 32.2 C (90.0 F) |
| 1966 | 35.0 C (95.0 F) |
| 1967 | 30.6 C (87.1 F) |
| 1968 | 35.6 C (96.1 F) |
| 1969 | 27.8 C (82.0 F) |
| 1970 | 33.3 C (91.9 F) |
| 1971 | 38.3 C (100.9 F) |
| 1972 | 33.3 C (91.9 F) |
| 1973 | 33.9 C (93.0 F) |
| 1974 | 31.7 C (89.1 F) |
| 1975 | 33.9 C (93.0 F) |
| 1976 | 35.0 C (95.0 F) |
| 1977 | 29.4 C (84.9 F) |
| 1978 | 33.3 C (91.9 F) |
| 1979 | 36.7 C (98.1 F) |
| 1980 | 36.1 C (97.0 F) |
| 1981 | 31.7 C (89.1 F) |
| 1982 | 30.6 C (87.1 F) |
| 1983 | 36.7 C (98.1 F) |
| 1984 | 37.8 C (100.0 F) |
| 1985 | 36.1 C (97.0 F) |
| 1986 | 32.8 C (91.0 F) |
| 1987 | 38.9 C (102.0 F) |
| 1988 | 33.9 C (93.0 F) |
| 1989 | 36.1 C (97.0 F) |
| 1990 | 33.3 C (91.9 F) |
| 1991 | 35.6 C (96.1 F) |
| 1992 | 34.4 C (93.9 F) |
| 1993 | 35.0 C (95.0 F) |
| 1994 | 33.3 C (91.9 F) |
| 1995 | 36.1 C (97.0 F) |
| 1996 | 37.2 C (99.0 F) |
| 1997 | 36.1 C (97.0 F) |
| 1998 | 30.0 C (86.0 F) |
| 1999 | 33.3 C (91.9 F) |
| 2000 | 39.4 C (102.9 F) |
| 2001 | 35.6 C (96.1 F) |
| 2002 | 32.8 C (91.0 F) |
| 2003 | 36.1 C (97.0 F) |
| 2004 | 35.6 C (96.1 F) |
| 2005 | 30.6 C (87.1 F) |
| 2006 | 30.6 C (87.1 F) |
| 2007 | 31.1 C (88.0 F) |
| 2008 | 36.1 C (97.0 F) |
| 2009 | 35.6 C (96.1 F) |
| 2010 | 36.7 C (98.1 F) |
| 2011 | 31.1 C (88.0 F) |
| 2012 | 34.4 C (93.9 F) |
| 2013 | 31.1 C (88.0 F) |
| 2014 | 33.3 C (91.9 F) |
| 2015 | 35.0 C (95.0 F) |
| 2016 | 33.3 C (91.9 F) |
| 2017 | 41.1 C (106.0 F) |
| 2018 | 28.3 C (82.9 F) |
| 2019 | 36.1 C (97.0 F) |
| 2020 | 37.8 C (100.0 F) |
| 2021 | 29.4 C (84.9 F) |
| 2022 | 36.7 C (98.1 F) |
| 2023 | 30.6 C (87.1 F) |
| 2024 | 36.1 C (97.0 F) |
| 2025 | 31.1 C (88.0 F) |
| 2026 | 34.4 C (93.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1921 | 3.9 C (39.0 F) |
| 1922 | 0.0 C (32.0 F) |
| 1923 | 2.2 C (36.0 F) |
| 1924 | 2.2 C (36.0 F) |
| 1925 | 4.4 C (39.9 F) |
| 1926 | 2.2 C (36.0 F) |
| 1927 | 4.4 C (39.9 F) |
| 1928 | 2.2 C (36.0 F) |
| 1929 | 1.7 C (35.1 F) |
| 1930 | 2.8 C (37.0 F) |
| 1931 | 3.9 C (39.0 F) |
| 1932 | -2.8 C (27.0 F) |
| 1933 | 2.2 C (36.0 F) |
| 1934 | 4.4 C (39.9 F) |
| 1935 | 3.9 C (39.0 F) |
| 1936 | 4.4 C (39.9 F) |
| 1937 | -1.1 C (30.0 F) |
| 1938 | 4.4 C (39.9 F) |
| 1939 | 3.9 C (39.0 F) |
| 1940 | 3.3 C (37.9 F) |
| 1941 | 5.0 C (41.0 F) |
| 1942 | 3.3 C (37.9 F) |
| 1943 | 3.9 C (39.0 F) |
| 1944 | 5.0 C (41.0 F) |
| 1945 | 3.9 C (39.0 F) |
| 1946 | 3.9 C (39.0 F) |
| 1947 | 1.7 C (35.1 F) |
| 1948 | 2.8 C (37.0 F) |
| 1949 | 0.0 C (32.0 F) |
| 1950 | 1.7 C (35.1 F) |
| 1951 | 2.2 C (36.0 F) |
| 1952 | 3.3 C (37.9 F) |
| 1953 | 4.4 C (39.9 F) |
| 1954 | 2.8 C (37.0 F) |
| 1955 | 3.9 C (39.0 F) |
| 1956 | 3.3 C (37.9 F) |
| 1957 | 2.2 C (36.0 F) |
| 1958 | 6.1 C (43.0 F) |
| 1959 | 6.1 C (43.0 F) |
| 1960 | 3.9 C (39.0 F) |
| 1961 | 1.7 C (35.1 F) |
| 1962 | 0.0 C (32.0 F) |
| 1963 | 2.8 C (37.0 F) |
| 1964 | 4.4 C (39.9 F) |
| 1965 | 1.7 C (35.1 F) |
| 1966 | 3.9 C (39.0 F) |
| 1967 | 2.8 C (37.0 F) |
| 1968 | 2.2 C (36.0 F) |
| 1969 | 3.3 C (37.9 F) |
| 1970 | 5.0 C (41.0 F) |
| 1971 | 3.9 C (39.0 F) |
| 1972 | -1.1 C (30.0 F) |
| 1973 | 3.9 C (39.0 F) |
| 1974 | 3.3 C (37.9 F) |
| 1975 | 3.9 C (39.0 F) |
| 1976 | 2.2 C (36.0 F) |
| 1977 | 4.4 C (39.9 F) |
| 1978 | 3.3 C (37.9 F) |
| 1979 | 5.6 C (42.1 F) |
| 1980 | 5.0 C (41.0 F) |
| 1981 | 5.6 C (42.1 F) |
| 1982 | 4.4 C (39.9 F) |
| 1983 | 3.9 C (39.0 F) |
| 1984 | 3.3 C (37.9 F) |
| 1985 | 3.9 C (39.0 F) |
| 1986 | 6.1 C (43.0 F) |
| 1987 | 4.4 C (39.9 F) |
| 1988 | 3.3 C (37.9 F) |
| 1989 | -0.6 C (30.9 F) |
| 1990 | -2.2 C (28.0 F) |
| 1991 | 4.4 C (39.9 F) |
| 1992 | 3.3 C (37.9 F) |
| 1993 | 2.8 C (37.0 F) |
| 1994 | 3.3 C (37.9 F) |
| 1995 | 5.0 C (41.0 F) |
| 1996 | 4.4 C (39.9 F) |
| 1997 | 2.2 C (36.0 F) |
| 1998 | 1.1 C (34.0 F) |
| 1999 | 2.8 C (37.0 F) |
| 2000 | 5.6 C (42.1 F) |
| 2001 | 2.2 C (36.0 F) |
| 2002 | 2.2 C (36.0 F) |
| 2003 | 4.4 C (39.9 F) |
| 2004 | 3.9 C (39.0 F) |
| 2005 | 4.4 C (39.9 F) |
| 2006 | 3.3 C (37.9 F) |
| 2007 | 2.8 C (37.0 F) |
| 2008 | 4.4 C (39.9 F) |
| 2009 | 3.3 C (37.9 F) |
| 2010 | 5.0 C (41.0 F) |
| 2011 | 2.8 C (37.0 F) |
| 2012 | 4.4 C (39.9 F) |
| 2013 | 2.2 C (36.0 F) |
| 2014 | 5.6 C (42.1 F) |
| 2015 | 3.9 C (39.0 F) |
| 2016 | 4.4 C (39.9 F) |
| 2017 | 3.9 C (39.0 F) |
| 2018 | 4.4 C (39.9 F) |
| 2019 | 4.4 C (39.9 F) |
| 2020 | 5.6 C (42.1 F) |
| 2021 | 4.4 C (39.9 F) |
| 2022 | 4.4 C (39.9 F) |
| 2023 | 3.9 C (39.0 F) |
| 2024 | 5.6 C (42.1 F) |
| 2025 | 5.0 C (41.0 F) |
| 2026 | 5.0 C (41.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1921 | 61.0 mm (2.4 in) |
| 1922 | 51.8 mm (2.0 in) |
| 1923 | 51.6 mm (2.0 in) |
| 1924 | 72.4 mm (2.9 in) |
| 1925 | 38.9 mm (1.5 in) |
| 1926 | 60.5 mm (2.4 in) |
| 1927 | 37.1 mm (1.5 in) |
| 1928 | 42.9 mm (1.7 in) |
| 1929 | 32.3 mm (1.3 in) |
| 1930 | 31.5 mm (1.2 in) |
| 1931 | 50.3 mm (2.0 in) |
| 1932 | 27.2 mm (1.1 in) |
| 1933 | 32.3 mm (1.3 in) |
| 1934 | 36.6 mm (1.4 in) |
| 1935 | 44.7 mm (1.8 in) |
| 1936 | 51.3 mm (2.0 in) |
| 1937 | 48.3 mm (1.9 in) |
| 1938 | 37.6 mm (1.5 in) |
| 1939 | 46.5 mm (1.8 in) |
| 1940 | 55.4 mm (2.2 in) |
| 1941 | 49.8 mm (2.0 in) |
| 1942 | 48.5 mm (1.9 in) |
| 1943 | 40.6 mm (1.6 in) |
| 1944 | 34.8 mm (1.4 in) |
| 1945 | 79.0 mm (3.1 in) |
| 1946 | 39.1 mm (1.5 in) |
| 1947 | 38.6 mm (1.5 in) |
| 1948 | 33.3 mm (1.3 in) |
| 1949 | 38.4 mm (1.5 in) |
| 1950 | 48.0 mm (1.9 in) |
| 1951 | 40.4 mm (1.6 in) |
| 1952 | 50.3 mm (2.0 in) |
| 1953 | 46.5 mm (1.8 in) |
| 1954 | 37.6 mm (1.5 in) |
| 1955 | 57.4 mm (2.3 in) |
| 1956 | 81.8 mm (3.2 in) |
| 1957 | 32.3 mm (1.3 in) |
| 1958 | 51.8 mm (2.0 in) |
| 1959 | 51.1 mm (2.0 in) |
| 1960 | 42.7 mm (1.7 in) |
| 1961 | 32.5 mm (1.3 in) |
| 1962 | 48.8 mm (1.9 in) |
| 1963 | 43.4 mm (1.7 in) |
| 1964 | 41.9 mm (1.6 in) |
| 1965 | 32.3 mm (1.3 in) |
| 1966 | 27.4 mm (1.1 in) |
| 1967 | 62.2 mm (2.4 in) |
| 1968 | 36.1 mm (1.4 in) |
| 1969 | 63.2 mm (2.5 in) |
| 1970 | 35.8 mm (1.4 in) |
| 1971 | 34.3 mm (1.4 in) |
| 1972 | 54.4 mm (2.1 in) |
| 1973 | 64.8 mm (2.6 in) |
| 1974 | 35.3 mm (1.4 in) |
| 1975 | 35.1 mm (1.4 in) |
| 1976 | 55.1 mm (2.2 in) |
| 1977 | 46.5 mm (1.8 in) |
| 1978 | 45.0 mm (1.8 in) |
| 1979 | 57.9 mm (2.3 in) |
| 1980 | 48.8 mm (1.9 in) |
| 1981 | 49.8 mm (2.0 in) |
| 1982 | 99.1 mm (3.9 in) |
| 1983 | 60.5 mm (2.4 in) |
| 1984 | 43.9 mm (1.7 in) |
| 1985 | 64.5 mm (2.5 in) |
| 1986 | 45.2 mm (1.8 in) |
| 1987 | 35.8 mm (1.4 in) |
| 1988 | 33.0 mm (1.3 in) |
| 1989 | 39.9 mm (1.6 in) |
| 1990 | 36.1 mm (1.4 in) |
| 1991 | 34.3 mm (1.4 in) |
| 1992 | 63.5 mm (2.5 in) |
| 1993 | 49.5 mm (1.9 in) |
| 1994 | 140.7 mm (5.5 in) |
| 1995 | 91.7 mm (3.6 in) |
| 1996 | 70.4 mm (2.8 in) |
| 1997 | 41.7 mm (1.6 in) |
| 1998 | 74.4 mm (2.9 in) |
| 1999 | 42.4 mm (1.7 in) |
| 2000 | 55.9 mm (2.2 in) |
| 2001 | 52.1 mm (2.1 in) |
| 2002 | 75.9 mm (3.0 in) |
| 2003 | 54.6 mm (2.1 in) |
| 2004 | 66.3 mm (2.6 in) |
| 2005 | 54.6 mm (2.1 in) |
| 2006 | 58.9 mm (2.3 in) |
| 2007 | 32.3 mm (1.3 in) |
| 2008 | 81.0 mm (3.2 in) |
| 2009 | 63.0 mm (2.5 in) |
| 2010 | 31.5 mm (1.2 in) |
| 2011 | 31.5 mm (1.2 in) |
| 2012 | 37.3 mm (1.5 in) |
| 2013 | 19.8 mm (0.8 in) |
| 2014 | 86.4 mm (3.4 in) |
| 2015 | 33.0 mm (1.3 in) |
| 2016 | 33.3 mm (1.3 in) |
| 2017 | 46.5 mm (1.8 in) |
| 2018 | 80.0 mm (3.1 in) |
| 2019 | 63.2 mm (2.5 in) |
| 2020 | 31.5 mm (1.2 in) |
| 2021 | 102.1 mm (4.0 in) |
| 2022 | 138.7 mm (5.5 in) |
| 2023 | 35.6 mm (1.4 in) |
| 2024 | 75.4 mm (3.0 in) |
| 2025 | 73.4 mm (2.9 in) |
| 2026 | 27.2 mm (1.1 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1921 | 112.1 mm (4.4 in) |
| 1922 | 95.8 mm (3.8 in) |
| 1923 | 69.1 mm (2.7 in) |
| 1924 | 91.0 mm (3.6 in) |
| 1925 | 81.2 mm (3.2 in) |
| 1926 | 126.5 mm (5.0 in) |
| 1927 | 75.7 mm (3.0 in) |
| 1928 | 81.3 mm (3.2 in) |
| 1929 | 53.9 mm (2.1 in) |
| 1930 | 73.2 mm (2.9 in) |
| 1931 | 124.7 mm (4.9 in) |
| 1932 | 65.3 mm (2.6 in) |
| 1933 | 69.4 mm (2.7 in) |
| 1934 | 86.9 mm (3.4 in) |
| 1935 | 66.5 mm (2.6 in) |
| 1936 | 125.0 mm (4.9 in) |
| 1937 | 104.8 mm (4.1 in) |
| 1938 | 101.6 mm (4.0 in) |
| 1939 | 60.2 mm (2.4 in) |
| 1940 | 129.3 mm (5.1 in) |
| 1941 | 111.2 mm (4.4 in) |
| 1942 | 90.2 mm (3.6 in) |
| 1943 | 111.1 mm (4.4 in) |
| 1944 | 69.1 mm (2.7 in) |
| 1945 | 123.8 mm (4.9 in) |
| 1946 | 65.1 mm (2.6 in) |
| 1947 | 59.9 mm (2.4 in) |
| 1948 | 56.6 mm (2.2 in) |
| 1949 | 52.9 mm (2.1 in) |
| 1950 | 100.5 mm (4.0 in) |
| 1951 | 114.3 mm (4.5 in) |
| 1952 | 118.6 mm (4.7 in) |
| 1953 | 78.5 mm (3.1 in) |
| 1954 | 85.4 mm (3.4 in) |
| 1955 | 130.5 mm (5.1 in) |
| 1956 | 119.4 mm (4.7 in) |
| 1957 | 66.6 mm (2.6 in) |
| 1958 | 121.6 mm (4.8 in) |
| 1959 | 76.7 mm (3.0 in) |
| 1960 | 59.0 mm (2.3 in) |
| 1961 | 77.0 mm (3.0 in) |
| 1962 | 139.2 mm (5.5 in) |
| 1963 | 91.7 mm (3.6 in) |
| 1964 | 75.5 mm (3.0 in) |
| 1965 | 85.9 mm (3.4 in) |
| 1966 | 70.4 mm (2.8 in) |
| 1967 | 140.4 mm (5.5 in) |
| 1968 | 64.5 mm (2.5 in) |
| 1969 | 99.5 mm (3.9 in) |
| 1970 | 105.6 mm (4.2 in) |
| 1971 | 43.5 mm (1.7 in) |
| 1972 | 99.9 mm (3.9 in) |
| 1973 | 131.8 mm (5.2 in) |
| 1974 | 59.9 mm (2.4 in) |
| 1975 | 54.9 mm (2.2 in) |
| 1976 | 64.2 mm (2.5 in) |
| 1977 | 100.8 mm (4.0 in) |
| 1978 | 92.9 mm (3.7 in) |
| 1979 | 109.4 mm (4.3 in) |
| 1980 | 96.0 mm (3.8 in) |
| 1981 | 83.0 mm (3.3 in) |
| 1982 | 191.3 mm (7.5 in) |
| 1983 | 106.8 mm (4.2 in) |
| 1984 | 75.3 mm (3.0 in) |
| 1985 | 91.7 mm (3.6 in) |
| 1986 | 167.6 mm (6.6 in) |
| 1987 | 70.4 mm (2.8 in) |
| 1988 | 86.3 mm (3.4 in) |
| 1989 | 59.2 mm (2.3 in) |
| 1990 | 67.9 mm (2.7 in) |
| 1991 | 59.7 mm (2.4 in) |
| 1992 | 100.3 mm (3.9 in) |
| 1993 | 99.1 mm (3.9 in) |
| 1994 | 191.3 mm (7.5 in) |
| 1995 | 144.8 mm (5.7 in) |
| 1996 | 111.1 mm (4.4 in) |
| 1997 | 101.6 mm (4.0 in) |
| 1998 | 162.0 mm (6.4 in) |
| 1999 | 82.3 mm (3.2 in) |
| 2000 | 130.0 mm (5.1 in) |
| 2001 | 101.1 mm (4.0 in) |
| 2002 | 171.2 mm (6.7 in) |
| 2003 | 55.9 mm (2.2 in) |
| 2004 | 127.2 mm (5.0 in) |
| 2005 | 111.0 mm (4.4 in) |
| 2006 | 102.6 mm (4.0 in) |
| 2007 | 62.5 mm (2.5 in) |
| 2008 | 111.0 mm (4.4 in) |
| 2009 | 116.7 mm (4.6 in) |
| 2010 | 109.0 mm (4.3 in) |
| 2011 | 95.3 mm (3.8 in) |
| 2012 | 95.8 mm (3.8 in) |
| 2013 | 35.5 mm (1.4 in) |
| 2014 | 128.6 mm (5.1 in) |
| 2015 | 77.6 mm (3.1 in) |
| 2016 | 89.2 mm (3.5 in) |
| 2017 | 97.8 mm (3.9 in) |
| 2018 | 94.7 mm (3.7 in) |
| 2019 | 102.6 mm (4.0 in) |
| 2020 | 39.1 mm (1.5 in) |
| 2021 | 168.1 mm (6.6 in) |
| 2022 | 217.2 mm (8.6 in) |
| 2023 | 187.0 mm (7.4 in) |
| 2024 | 118.9 mm (4.7 in) |
| 2025 | 104.1 mm (4.1 in) |
| 2026 | 87.2 mm (3.4 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1921 | 110 days |
| 1922 | 113 days |
| 1923 | 117 days |
| 1924 | 186 days |
| 1925 | 63 days |
| 1926 | 110 days |
| 1927 | 140 days |
| 1928 | 173 days |
| 1929 | 176 days |
| 1930 | 143 days |
| 1931 | 128 days |
| 1932 | 155 days |
| 1933 | 125 days |
| 1934 | 89 days |
| 1935 | 118 days |
| 1936 | 144 days |
| 1937 | 107 days |
| 1938 | 149 days |
| 1939 | 114 days |
| 1940 | 95 days |
| 1941 | 165 days |
| 1942 | 105 days |
| 1943 | 139 days |
| 1944 | 118 days |
| 1945 | 166 days |
| 1946 | 59 days |
| 1947 | 120 days |
| 1948 | 110 days |
| 1949 | 100 days |
| 1950 | 166 days |
| 1951 | 109 days |
| 1952 | 101 days |
| 1953 | 83 days |
| 1954 | 74 days |
| 1955 | 189 days |
| 1956 | 132 days |
| 1957 | 109 days |
| 1958 | 105 days |
| 1959 | 144 days |
| 1960 | 133 days |
| 1961 | 112 days |
| 1962 | 103 days |
| 1963 | 124 days |
| 1964 | 140 days |
| 1965 | 112 days |
| 1966 | 84 days |
| 1967 | 107 days |
| 1968 | 111 days |
| 1969 | 121 days |
| 1970 | 130 days |
| 1971 | 124 days |
| 1972 | 70 days |
| 1973 | 118 days |
| 1974 | 111 days |
| 1975 | 85 days |
| 1976 | 126 days |
| 1977 | 115 days |
| 1978 | 136 days |
| 1979 | 88 days |
| 1980 | 101 days |
| 1981 | 137 days |
| 1982 | 78 days |
| 1983 | 104 days |
| 1984 | 84 days |
| 1985 | 97 days |
| 1986 | 135 days |
| 1987 | 174 days |
| 1988 | 128 days |
| 1989 | 79 days |
| 1990 | 114 days |
| 1991 | 70 days |
| 1992 | 93 days |
| 1993 | 131 days |
| 1994 | 109 days |
| 1995 | 134 days |
| 1996 | 149 days |
| 1997 | 75 days |
| 1998 | 110 days |
| 1999 | 68 days |
| 2000 | 84 days |
| 2001 | 90 days |
| 2002 | 169 days |
| 2003 | 179 days |
| 2004 | 113 days |
| 2005 | 119 days |
| 2006 | 135 days |
| 2007 | 140 days |
| 2008 | 163 days |
| 2009 | 129 days |
| 2010 | 113 days |
| 2011 | 96 days |
| 2012 | 139 days |
| 2013 | 87 days |
| 2014 | 85 days |
| 2015 | 82 days |
| 2016 | 159 days |
| 2017 | 94 days |
| 2018 | 131 days |
| 2019 | 117 days |
| 2020 | 178 days |
| 2021 | 101 days |
| 2022 | 77 days |
| 2023 | 142 days |
| 2024 | 90 days |
| 2025 | 104 days |
| 2026 | 109 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.
Rainfall Return Levels
105 years, 1921 to 2025A day with at least 46.2 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 129.5 mm (5.1 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 46.2 mm (1.8 in) | |
| 5 years | 62.9 mm (2.5 in) | |
| 10 years | 75.9 mm (3.0 in) | |
| 25 years | 94.9 mm (3.7 in) | |
| 50 years | 111.2 mm (4.4 in) | |
| 100 years | 129.5 mm (5.1 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 105 years of values from 1921 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: 140.7 mm (5.5 in) in 1994; 138.7 mm (5.5 in) in 2022; 102.1 mm (4.0 in) in 2021.
Station Changes
3 suspected3 changes were suspected in the annual mean temperature of San Francisco Dwtn, at 1968, 1985 and 1998. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1968 ran 0.3 C (0.5 F) lower than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1985 ran 0.8 C (1.4 F) higher than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1998 ran 0.6 C (1.0 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1968 | -0.3 | -0.5 | likely | 5 |
| 1985 | +0.8 | +1.4 | possible | 5 |
| 1998 | -0.5 | -1.0 | 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.
Climate Twins
2009 to 2025 against 1961 to 1990Over 2009 to 2025, San Francisco Dwtn had a mean temperature of 14.4 C (58.0 F) and 506.4 mm (19.9 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Pismo Beach (United States, 330 km away), Monterey (United States, 140 km away) and Lompoc (United States, 389 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Pismo Beach | United States | 330 km (205 mi) | 14.3 C (57.8 F) | 421.6 mm (16.6 in) | 0.51 |
| Monterey | United States | 140 km (87 mi) | 13.7 C (56.6 F) | 475.6 mm (18.7 in) | 0.83 |
| Lompoc | United States | 389 km (242 mi) | 14.6 C (58.3 F) | 354.5 mm (14.0 in) | 0.86 |
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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-17).