Chula Vista Weather Records (USC00041758)
Record envelope, standing records and threshold days for Chula Vista (USC00041758), California, United States, with 109 years of record.
Key Facts for Chula Vista
- Chula Vista (USC00041758) is a weather station in California, United States at 32.64 latitude and -117.09 longitude, 17 m (56 ft) above sea level.
- The station reports from 1918 to 2026, 109 years of record.
- 1,464 records set at Chula Vista still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Chula Vista tied a daily record high minimum temperature of 23.9 C (75.0 F) on 10 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, 32.64 latitude, -117.09 longitude.
- Elevation: 17 m (56 ft).
- Period of record: 1918 to 2026, 109 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
13 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 32.2 C (90.0 F) | -4.4 C (24.1 F) | 30.6 C (87.1 F) | 4.4 C (39.9 F) |
| Feb | 33.9 C (93.0 F) | -1.7 C (28.9 F) | 32.8 C (91.0 F) | 5.6 C (42.1 F) |
| Mar | 35.0 C (95.0 F) | 0.0 C (32.0 F) | 33.9 C (93.0 F) | 8.9 C (48.0 F) |
| Apr | 38.9 C (102.0 F) | 2.2 C (36.0 F) | 30.0 C (86.0 F) | 10.0 C (50.0 F) |
| May | 36.7 C (98.1 F) | 5.0 C (41.0 F) | 26.1 C (79.0 F) | 12.2 C (54.0 F) |
| Jun | 36.1 C (97.0 F) | 6.1 C (43.0 F) | 29.4 C (84.9 F) | 15.6 C (60.1 F) |
| Jul | 37.8 C (100.0 F) | 10.6 C (51.1 F) | 30.0 C (86.0 F) | 17.8 C (64.0 F) |
| Aug | 35.6 C (96.1 F) | 11.7 C (53.1 F) | 30.6 C (87.1 F) | 20.6 C (69.1 F) |
| Sep | 42.2 C (108.0 F) | 6.1 C (43.0 F) | 35.6 C (96.1 F) | 23.9 C (75.0 F) |
| Oct | 41.1 C (106.0 F) | 2.2 C (36.0 F) | n/a | n/a |
| Nov | 36.7 C (98.1 F) | 0.6 C (33.1 F) | n/a | n/a |
| Dec | 30.0 C (86.0 F) | -2.2 C (28.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1918 | 4 |
| 1919 | 27 |
| 1920 | 36 |
| 1921 | 20 |
| 1922 | 32 |
| 1923 | 14 |
| 1924 | 39 |
| 1925 | 15 |
| 1926 | 13 |
| 1927 | 14 |
| 1928 | 18 |
| 1929 | 16 |
| 1930 | 13 |
| 1931 | 24 |
| 1932 | 24 |
| 1933 | 41 |
| 1934 | 6 |
| 1935 | 19 |
| 1936 | 8 |
| 1937 | 13 |
| 1938 | 15 |
| 1939 | 21 |
| 1940 | 8 |
| 1941 | 7 |
| 1942 | 2 |
| 1943 | 5 |
| 1944 | 13 |
| 1945 | 14 |
| 1946 | 11 |
| 1947 | 8 |
| 1948 | 25 |
| 1949 | 32 |
| 1950 | 18 |
| 1951 | 8 |
| 1952 | 17 |
| 1953 | 27 |
| 1954 | 5 |
| 1955 | 15 |
| 1956 | 8 |
| 1957 | 7 |
| 1958 | 4 |
| 1959 | 8 |
| 1960 | 4 |
| 1961 | 2 |
| 1962 | 5 |
| 1963 | 9 |
| 1964 | 11 |
| 1965 | 14 |
| 1966 | 5 |
| 1967 | 14 |
| 1968 | 10 |
| 1969 | 5 |
| 1970 | 5 |
| 1971 | 25 |
| 1972 | 3 |
| 1973 | 5 |
| 1974 | 2 |
| 1975 | 12 |
| 1976 | 7 |
| 1977 | 9 |
| 1978 | 11 |
| 1979 | 7 |
| 1980 | 14 |
| 1981 | 10 |
| 1982 | 10 |
| 1983 | 15 |
| 1984 | 14 |
| 1985 | 20 |
| 1986 | 15 |
| 1987 | 14 |
| 1988 | 9 |
| 1989 | 16 |
| 1990 | 13 |
| 1991 | 5 |
| 1992 | 33 |
| 1993 | 8 |
| 1994 | 6 |
| 1995 | 17 |
| 1996 | 11 |
| 1997 | 43 |
| 1998 | 3 |
| 1999 | 11 |
| 2000 | 9 |
| 2001 | 5 |
| 2002 | 3 |
| 2003 | 16 |
| 2004 | 8 |
| 2005 | 6 |
| 2006 | 11 |
| 2007 | 7 |
| 2008 | 6 |
| 2009 | 9 |
| 2010 | 17 |
| 2011 | 6 |
| 2012 | 10 |
| 2013 | 8 |
| 2014 | 39 |
| 2015 | 45 |
| 2016 | 17 |
| 2017 | 12 |
| 2018 | 18 |
| 2019 | 5 |
| 2020 | 13 |
| 2021 | 6 |
| 2022 | 8 |
| 2023 | 2 |
| 2024 | 4 |
| 2025 | 14 |
| 2026 | 34 |
All-Time Record Progression
6 new records| Date | Kind | Detail |
|---|---|---|
| 1949-01-04 | Record low minimum temperature | Record low minimum temperature -3.3 C (26.1 F) |
| 1949-01-12 | Record low maximum temperature | Record low maximum temperature 6.7 C (44.1 F) |
| 1963-01-14 | Record low minimum temperature | Record low minimum temperature -4.4 C (24.1 F) |
| 1963-09-27 | Record high maximum temperature | Record high maximum temperature 42.2 C (108.0 F) |
| 2003-08-02 | Record high minimum temperature | Record high minimum temperature 24.4 C (75.9 F) |
| 2016-09-27 | Record high minimum temperature | Record high minimum temperature 25.6 C (78.1 F) |
Wettest Day of Each Month
Dec: 93.2 mm (3.7 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 54.4 mm (2.1 in) | 30 January 1986 |
| Feb | 66.3 mm (2.6 in) | 6 February 1937 |
| Mar | 73.4 mm (2.9 in) | 9 March 1968 |
| Apr | 46.2 mm (1.8 in) | 1 April 1941 |
| May | 41.9 mm (1.6 in) | 5 May 1921 |
| Jun | 10.2 mm (0.4 in) | 10 June 1990 |
| Jul | 22.4 mm (0.9 in) | 19 July 2015 |
| Aug | 49.0 mm (1.9 in) | 17 August 1977 |
| Sep | 30.5 mm (1.2 in) | 25 September 1997 |
| Oct | 73.2 mm (2.9 in) | 4 October 1925 |
| Nov | 54.6 mm (2.1 in) | 24 November 1985 |
| Dec | 93.2 mm (3.7 in) | 24 December 1940 |
Period of Record Coverage
1918 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1918 | 117 | 32% | No |
| 1919 | 365 | 100% | Yes |
| 1920 | 366 | 100% | Yes |
| 1921 | 365 | 100% | Yes |
| 1922 | 365 | 100% | Yes |
| 1923 | 365 | 100% | Yes |
| 1924 | 366 | 100% | Yes |
| 1925 | 364 | 100% | Yes |
| 1926 | 365 | 100% | Yes |
| 1927 | 364 | 100% | Yes |
| 1928 | 364 | 99% | Yes |
| 1929 | 363 | 99% | Yes |
| 1930 | 364 | 100% | Yes |
| 1931 | 362 | 99% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 365 | 100% | Yes |
| 1934 | 364 | 100% | Yes |
| 1935 | 365 | 100% | Yes |
| 1936 | 365 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 364 | 100% | Yes |
| 1940 | 364 | 99% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 364 | 99% | Yes |
| 1945 | 362 | 99% | Yes |
| 1946 | 364 | 100% | Yes |
| 1947 | 363 | 99% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 353 | 97% | Yes |
| 1951 | 354 | 97% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 313 | 86% | No |
| 1956 | 266 | 73% | No |
| 1957 | 279 | 76% | No |
| 1958 | 269 | 74% | No |
| 1959 | 272 | 75% | No |
| 1960 | 268 | 73% | No |
| 1961 | 266 | 73% | No |
| 1962 | 267 | 73% | No |
| 1963 | 282 | 77% | No |
| 1964 | 301 | 82% | No |
| 1965 | 295 | 81% | No |
| 1966 | 308 | 84% | No |
| 1967 | 361 | 99% | Yes |
| 1968 | 358 | 98% | Yes |
| 1969 | 362 | 99% | Yes |
| 1970 | 362 | 99% | Yes |
| 1971 | 364 | 100% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 335 | 92% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 364 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 363 | 99% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 346 | 95% | Yes |
| 1983 | 350 | 96% | Yes |
| 1984 | 334 | 91% | Yes |
| 1985 | 338 | 93% | Yes |
| 1986 | 330 | 90% | Yes |
| 1987 | 346 | 95% | Yes |
| 1988 | 348 | 95% | Yes |
| 1989 | 314 | 86% | No |
| 1990 | 338 | 93% | Yes |
| 1991 | 356 | 98% | Yes |
| 1992 | 317 | 87% | No |
| 1993 | 357 | 98% | Yes |
| 1994 | 362 | 99% | Yes |
| 1995 | 356 | 98% | Yes |
| 1996 | 355 | 97% | Yes |
| 1997 | 350 | 96% | Yes |
| 1998 | 263 | 72% | No |
| 1999 | 313 | 86% | No |
| 2000 | 332 | 91% | Yes |
| 2001 | 345 | 95% | Yes |
| 2002 | 298 | 82% | No |
| 2003 | 219 | 60% | No |
| 2004 | 228 | 62% | No |
| 2005 | 227 | 62% | No |
| 2006 | 199 | 55% | No |
| 2007 | 219 | 60% | No |
| 2008 | 191 | 52% | No |
| 2009 | 346 | 95% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 363 | 99% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 363 | 99% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 365 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 364 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 229 | 63% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 10 September 2026 | Chula Vista, US | daily high min (Tie, Provisional) | 23.9 C (75.0 F) | tie | 11 years | 3 of 100 (Routine) |
| 9 September 2026 | Chula Vista, US | daily high min (Provisional) | 25.0 C (77.0 F) | 1.1 C (2.0 F) | 11 years | 17 of 100 (Routine) |
| 30 August 2026 | Chula Vista, US | daily high min (Provisional) | 22.8 C (73.0 F) | 1.1 C (2.0 F) | 12 years | 19 of 100 (Routine) |
| 29 August 2026 | Chula Vista, US | daily high min (Provisional) | 23.3 C (73.9 F) | 2.2 C (4.0 F) | 41 years | 34 of 100 (Routine) |
| 26 August 2026 | Chula Vista, US | daily high min (Provisional) | 22.2 C (72.0 F) | 0.5 C (0.9 F) | 11 years | 15 of 100 (Routine) |
| 25 August 2026 | Chula Vista, US | daily high min (Tie, Provisional) | 21.7 C (71.1 F) | tie | 67 years | 7 of 100 (Routine) |
| 14 August 2026 | Chula Vista, US | daily high min (Tie) | 22.2 C (72.0 F) | tie | 55 years | 6 of 100 (Routine) |
| 9 August 2026 | Chula Vista, US | daily high min (Tie) | 22.2 C (72.0 F) | tie | 79 years | 8 of 100 (Routine) |
| 7 August 2026 | Chula Vista, US | daily rain (Tie) | 0.5 mm (0.02 in) | tie | 53 years | 6 of 100 (Routine) |
| 6 August 2026 | Chula Vista, US | daily high min | 22.2 C (72.0 F) | 0.5 C (0.9 F) | 43 years | 24 of 100 (Routine) |
| 3 August 2026 | Chula Vista, US | daily high min (Tie) | 22.2 C (72.0 F) | tie | 8 years | 3 of 100 (Routine) |
| 29 July 2026 | Chula Vista, US | daily high min (Tie) | 21.1 C (70.0 F) | tie | 8 years | 3 of 100 (Routine) |
| 26 July 2026 | Chula Vista, US | daily high min | 22.8 C (73.0 F) | 1.1 C (2.0 F) | 65 years | 35 of 100 (Notable) |
| 25 July 2026 | Chula Vista, US | daily high min (Tie) | 21.1 C (70.0 F) | tie | 95 years | 9 of 100 (Routine) |
| 24 July 2026 | Chula Vista, US | daily high min | 21.7 C (71.1 F) | 0.6 C (1.1 F) | 95 years | 41 of 100 (Notable) |
| 23 July 2026 | Chula Vista, US | daily high min | 22.8 C (73.0 F) | 0.6 C (1.1 F) | 95 years | 41 of 100 (Notable) |
| 23 July 2026 | Chula Vista, US | daily high max | 28.9 C (84.0 F) | 0.6 C (1.1 F) | 37 years | 23 of 100 (Routine) |
| 22 July 2026 | Chula Vista, US | daily high min | 22.8 C (73.0 F) | 1.1 C (2.0 F) | 11 years | 19 of 100 (Routine) |
| 21 July 2026 | Chula Vista, US | daily high max (Tie) | 30.0 C (86.0 F) | tie | 9 years | 3 of 100 (Routine) |
| 20 July 2026 | Chula Vista, US | daily high min (Tie) | 22.2 C (72.0 F) | tie | 11 years | 3 of 100 (Routine) |
Climate Trend
92 complete years, 1919 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1919 | 15.0 C | -1.36 C |
| 1920 | 14.7 C | -1.60 C |
| 1921 | 15.3 C | -1.01 C |
| 1922 | 14.9 C | -1.39 C |
| 1923 | 15.3 C | -1.05 C |
| 1924 | 14.9 C | -1.45 C |
| 1925 | 15.4 C | -0.94 C |
| 1926 | 16.3 C | -0.02 C |
| 1927 | 15.2 C | -1.14 C |
| 1928 | 15.1 C | -1.24 C |
| 1929 | 15.4 C | -0.95 C |
| 1930 | 15.8 C | -0.49 C |
| 1931 | 16.7 C | +0.33 C |
| 1932 | 14.9 C | -1.42 C |
| 1933 | 14.1 C | -2.19 C |
| 1934 | 16.3 C | -0.01 C |
| 1935 | 15.2 C | -1.15 C |
| 1936 | 15.8 C | -0.52 C |
| 1937 | 15.2 C | -1.16 C |
| 1938 | 15.5 C | -0.83 C |
| 1939 | 15.7 C | -0.59 C |
| 1940 | 16.2 C | -0.09 C |
| 1941 | 16.0 C | -0.32 C |
| 1942 | 15.1 C | -1.25 C |
| 1943 | 15.8 C | -0.54 C |
| 1944 | 15.0 C | -1.30 C |
| 1945 | 15.4 C | -0.88 C |
| 1946 | 15.3 C | -1.07 C |
| 1947 | 15.7 C | -0.61 C |
| 1948 | 14.4 C | -1.93 C |
| 1949 | 14.8 C | -1.49 C |
| 1951 | 15.1 C | -1.18 C |
| 1952 | 15.0 C | -1.32 C |
| 1953 | 15.2 C | -1.16 C |
| 1954 | 15.6 C | -0.73 C |
| 1955 | 15.1 C | -1.24 C |
| 1957 | 16.0 C | -0.28 C |
| 1958 | 16.6 C | +0.31 C |
| 1959 | 16.9 C | +0.53 C |
| 1960 | 15.6 C | -0.70 C |
| 1961 | 15.8 C | -0.53 C |
| 1963 | 16.2 C | -0.15 C |
| 1964 | 15.2 C | -1.13 C |
| 1965 | 15.5 C | -0.84 C |
| 1966 | 15.9 C | -0.39 C |
| 1967 | 15.9 C | -0.38 C |
| 1968 | 15.7 C | -0.58 C |
| 1969 | 15.7 C | -0.62 C |
| 1970 | 15.8 C | -0.50 C |
| 1971 | 15.2 C | -1.16 C |
| 1972 | 15.9 C | -0.42 C |
| 1974 | 15.5 C | -0.81 C |
| 1975 | 14.8 C | -1.57 C |
| 1976 | 16.5 C | +0.13 C |
| 1977 | 16.4 C | +0.06 C |
| 1978 | 16.6 C | +0.25 C |
| 1979 | 16.3 C | -0.04 C |
| 1980 | 16.5 C | +0.18 C |
| 1981 | 17.1 C | +0.76 C |
| 1982 | 16.9 C | +0.61 C |
| 1983 | 17.9 C | +1.60 C |
| 1984 | 17.9 C | +1.54 C |
| 1985 | 17.1 C | +0.82 C |
| 1986 | 17.8 C | +1.49 C |
| 1987 | 17.3 C | +0.93 C |
| 1988 | 17.5 C | +1.15 C |
| 1990 | 17.8 C | +1.47 C |
| 1991 | 17.1 C | +0.80 C |
| 1993 | 18.0 C | +1.67 C |
| 1994 | 17.4 C | +1.03 C |
| 1995 | 17.9 C | +1.57 C |
| 1996 | 18.1 C | +1.77 C |
| 1997 | 18.8 C | +2.45 C |
| 2000 | 17.4 C | +1.09 C |
| 2001 | 16.8 C | +0.46 C |
| 2009 | 17.5 C | +1.22 C |
| 2010 | 16.5 C | +0.19 C |
| 2011 | 16.7 C | +0.40 C |
| 2012 | 17.5 C | +1.22 C |
| 2013 | 17.4 C | +1.05 C |
| 2014 | 19.3 C | +2.96 C |
| 2015 | 19.1 C | +2.75 C |
| 2016 | 18.7 C | +2.33 C |
| 2017 | 17.9 C | +1.61 C |
| 2018 | 17.8 C | +1.52 C |
| 2019 | 17.1 C | +0.77 C |
| 2020 | 17.9 C | +1.58 C |
| 2021 | 17.2 C | +0.84 C |
| 2022 | 17.7 C | +1.34 C |
| 2023 | 17.1 C | +0.78 C |
| 2024 | 17.2 C | +0.92 C |
| 2025 | 17.9 C | +1.60 C |
The annual mean temperature here has risen by 0.3 C (0.3 to 0.3) per decade over 1919 to 2025. In Fahrenheit: 0.5 F (0.5 to 0.6) per decade. The slope is a straight line fitted to 92 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.3 C (0.3 to 0.3) per decade | 0.5 F (0.5 to 0.6) per decade | 1919 to 2025 | 92 | Rise |
| Mean daily maximum | 0.3 C (0.3 to 0.4) per decade | 0.6 F (0.5 to 0.7) per decade | 1919 to 2025 | 92 | Rise |
| Mean daily minimum | 0.3 C (0.2 to 0.3) per decade | 0.5 F (0.4 to 0.5) per decade | 1919 to 2025 | 92 | 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
1918 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.2 C (108.0 F) | 1963 | 33.3 C (91.9 F) | 109 |
| Coldest night (TNn) | -4.4 C (24.1 F) | 1963 | 1.1 C (34.0 F) | 109 |
| Wettest day (Rx1day) | 93.2 mm (3.7 in) | 1940 | 34.8 mm (1.4 in) | 109 |
| Wettest five days (Rx5day) | 152.1 mm (6.0 in) | 1927 | 54.4 mm (2.1 in) | 109 |
| Longest dry spell (CDD) | 233 days | 2009 | 136 days | 109 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1918 | 34.4 C (93.9 F) |
| 1919 | 28.9 C (84.0 F) |
| 1920 | 28.3 C (82.9 F) |
| 1921 | 34.4 C (93.9 F) |
| 1922 | 31.1 C (88.0 F) |
| 1923 | 29.4 C (84.9 F) |
| 1924 | 30.6 C (87.1 F) |
| 1925 | 30.0 C (86.0 F) |
| 1926 | 33.3 C (91.9 F) |
| 1927 | 35.0 C (95.0 F) |
| 1928 | 28.3 C (82.9 F) |
| 1929 | 32.2 C (90.0 F) |
| 1930 | 30.6 C (87.1 F) |
| 1931 | 32.2 C (90.0 F) |
| 1932 | 30.6 C (87.1 F) |
| 1933 | 27.8 C (82.0 F) |
| 1934 | 31.7 C (89.1 F) |
| 1935 | 30.6 C (87.1 F) |
| 1936 | 35.6 C (96.1 F) |
| 1937 | 28.9 C (84.0 F) |
| 1938 | 28.9 C (84.0 F) |
| 1939 | 40.6 C (105.1 F) |
| 1940 | 33.3 C (91.9 F) |
| 1941 | 27.8 C (82.0 F) |
| 1942 | 30.6 C (87.1 F) |
| 1943 | 30.0 C (86.0 F) |
| 1944 | 28.9 C (84.0 F) |
| 1945 | 30.6 C (87.1 F) |
| 1946 | 31.7 C (89.1 F) |
| 1947 | 31.1 C (88.0 F) |
| 1948 | 27.2 C (81.0 F) |
| 1949 | 32.2 C (90.0 F) |
| 1950 | 30.6 C (87.1 F) |
| 1951 | 29.4 C (84.9 F) |
| 1952 | 28.3 C (82.9 F) |
| 1953 | 34.4 C (93.9 F) |
| 1954 | 30.6 C (87.1 F) |
| 1955 | 35.0 C (95.0 F) |
| 1956 | 35.0 C (95.0 F) |
| 1957 | 31.1 C (88.0 F) |
| 1958 | 33.9 C (93.0 F) |
| 1959 | 29.4 C (84.9 F) |
| 1960 | 31.1 C (88.0 F) |
| 1961 | 40.0 C (104.0 F) |
| 1962 | 27.2 C (81.0 F) |
| 1963 | 42.2 C (108.0 F) |
| 1964 | 35.0 C (95.0 F) |
| 1965 | 38.3 C (100.9 F) |
| 1966 | 35.6 C (96.1 F) |
| 1967 | 33.3 C (91.9 F) |
| 1968 | 31.1 C (88.0 F) |
| 1969 | 28.9 C (84.0 F) |
| 1970 | 34.4 C (93.9 F) |
| 1971 | 31.7 C (89.1 F) |
| 1972 | 28.3 C (82.9 F) |
| 1973 | 30.6 C (87.1 F) |
| 1974 | 33.3 C (91.9 F) |
| 1975 | 38.9 C (102.0 F) |
| 1976 | 35.6 C (96.1 F) |
| 1977 | 27.8 C (82.0 F) |
| 1978 | 35.6 C (96.1 F) |
| 1979 | 33.9 C (93.0 F) |
| 1980 | 30.6 C (87.1 F) |
| 1981 | 35.0 C (95.0 F) |
| 1982 | 35.6 C (96.1 F) |
| 1983 | 33.9 C (93.0 F) |
| 1984 | 40.6 C (105.1 F) |
| 1985 | 36.1 C (97.0 F) |
| 1986 | 33.9 C (93.0 F) |
| 1987 | 41.1 C (106.0 F) |
| 1988 | 42.2 C (108.0 F) |
| 1989 | 38.9 C (102.0 F) |
| 1990 | 35.6 C (96.1 F) |
| 1991 | 35.6 C (96.1 F) |
| 1992 | 33.9 C (93.0 F) |
| 1993 | 32.2 C (90.0 F) |
| 1994 | 36.1 C (97.0 F) |
| 1995 | 33.3 C (91.9 F) |
| 1996 | 33.3 C (91.9 F) |
| 1997 | 38.3 C (100.9 F) |
| 1998 | 33.9 C (93.0 F) |
| 1999 | 35.6 C (96.1 F) |
| 2000 | 31.7 C (89.1 F) |
| 2001 | 30.6 C (87.1 F) |
| 2002 | 33.3 C (91.9 F) |
| 2003 | 33.3 C (91.9 F) |
| 2004 | 39.4 C (102.9 F) |
| 2005 | 33.3 C (91.9 F) |
| 2006 | 37.8 C (100.0 F) |
| 2007 | 33.9 C (93.0 F) |
| 2008 | 35.0 C (95.0 F) |
| 2009 | 36.1 C (97.0 F) |
| 2010 | 37.2 C (99.0 F) |
| 2011 | 36.1 C (97.0 F) |
| 2012 | 37.8 C (100.0 F) |
| 2013 | 32.8 C (91.0 F) |
| 2014 | 36.7 C (98.1 F) |
| 2015 | 37.2 C (99.0 F) |
| 2016 | 38.3 C (100.9 F) |
| 2017 | 37.2 C (99.0 F) |
| 2018 | 35.6 C (96.1 F) |
| 2019 | 33.9 C (93.0 F) |
| 2020 | 38.9 C (102.0 F) |
| 2021 | 32.2 C (90.0 F) |
| 2022 | 36.7 C (98.1 F) |
| 2023 | 31.7 C (89.1 F) |
| 2024 | 38.3 C (100.9 F) |
| 2025 | 34.4 C (93.9 F) |
| 2026 | 35.6 C (96.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1918 | 0.6 C (33.1 F) |
| 1919 | -2.2 C (28.0 F) |
| 1920 | 1.1 C (34.0 F) |
| 1921 | 0.0 C (32.0 F) |
| 1922 | -1.1 C (30.0 F) |
| 1923 | 0.0 C (32.0 F) |
| 1924 | 0.0 C (32.0 F) |
| 1925 | 1.7 C (35.1 F) |
| 1926 | 1.7 C (35.1 F) |
| 1927 | -0.6 C (30.9 F) |
| 1928 | -1.1 C (30.0 F) |
| 1929 | 0.6 C (33.1 F) |
| 1930 | 0.6 C (33.1 F) |
| 1931 | 0.6 C (33.1 F) |
| 1932 | -1.1 C (30.0 F) |
| 1933 | 0.6 C (33.1 F) |
| 1934 | 0.6 C (33.1 F) |
| 1935 | 1.1 C (34.0 F) |
| 1936 | 2.2 C (36.0 F) |
| 1937 | -2.8 C (27.0 F) |
| 1938 | 0.6 C (33.1 F) |
| 1939 | -1.1 C (30.0 F) |
| 1940 | 1.1 C (34.0 F) |
| 1941 | 0.6 C (33.1 F) |
| 1942 | 0.0 C (32.0 F) |
| 1943 | 1.1 C (34.0 F) |
| 1944 | 0.6 C (33.1 F) |
| 1945 | 1.1 C (34.0 F) |
| 1946 | 0.0 C (32.0 F) |
| 1947 | -2.2 C (28.0 F) |
| 1948 | -1.7 C (28.9 F) |
| 1949 | -3.3 C (26.1 F) |
| 1950 | -2.2 C (28.0 F) |
| 1951 | -0.6 C (30.9 F) |
| 1952 | -1.1 C (30.0 F) |
| 1953 | -0.6 C (30.9 F) |
| 1954 | -1.1 C (30.0 F) |
| 1955 | 0.6 C (33.1 F) |
| 1956 | 0.0 C (32.0 F) |
| 1957 | 3.3 C (37.9 F) |
| 1958 | 2.8 C (37.0 F) |
| 1959 | 2.2 C (36.0 F) |
| 1960 | -1.1 C (30.0 F) |
| 1961 | 2.2 C (36.0 F) |
| 1962 | 1.7 C (35.1 F) |
| 1963 | -4.4 C (24.1 F) |
| 1964 | 1.1 C (34.0 F) |
| 1965 | 0.6 C (33.1 F) |
| 1966 | 1.7 C (35.1 F) |
| 1967 | 2.2 C (36.0 F) |
| 1968 | -0.6 C (30.9 F) |
| 1969 | 0.6 C (33.1 F) |
| 1970 | -0.6 C (30.9 F) |
| 1971 | -1.7 C (28.9 F) |
| 1972 | -0.6 C (30.9 F) |
| 1973 | 0.6 C (33.1 F) |
| 1974 | -0.6 C (30.9 F) |
| 1975 | 1.1 C (34.0 F) |
| 1976 | 0.0 C (32.0 F) |
| 1977 | 3.9 C (39.0 F) |
| 1978 | -1.1 C (30.0 F) |
| 1979 | 2.2 C (36.0 F) |
| 1980 | 5.0 C (41.0 F) |
| 1981 | 4.4 C (39.9 F) |
| 1982 | 1.1 C (34.0 F) |
| 1983 | 1.7 C (35.1 F) |
| 1984 | 1.1 C (34.0 F) |
| 1985 | 0.6 C (33.1 F) |
| 1986 | 1.7 C (35.1 F) |
| 1987 | -2.2 C (28.0 F) |
| 1988 | 1.7 C (35.1 F) |
| 1989 | 1.7 C (35.1 F) |
| 1990 | -1.7 C (28.9 F) |
| 1991 | 2.8 C (37.0 F) |
| 1992 | 3.9 C (39.0 F) |
| 1993 | 0.6 C (33.1 F) |
| 1994 | 1.7 C (35.1 F) |
| 1995 | 4.4 C (39.9 F) |
| 1996 | 3.9 C (39.0 F) |
| 1997 | 1.7 C (35.1 F) |
| 1998 | 1.1 C (34.0 F) |
| 1999 | 2.2 C (36.0 F) |
| 2000 | 3.3 C (37.9 F) |
| 2001 | 1.1 C (34.0 F) |
| 2002 | 0.0 C (32.0 F) |
| 2003 | 0.0 C (32.0 F) |
| 2004 | 2.2 C (36.0 F) |
| 2005 | 4.4 C (39.9 F) |
| 2006 | 2.8 C (37.0 F) |
| 2007 | -1.1 C (30.0 F) |
| 2008 | 2.2 C (36.0 F) |
| 2009 | 2.8 C (37.0 F) |
| 2010 | 3.9 C (39.0 F) |
| 2011 | 1.1 C (34.0 F) |
| 2012 | 1.1 C (34.0 F) |
| 2013 | 2.2 C (36.0 F) |
| 2014 | 3.3 C (37.9 F) |
| 2015 | 2.2 C (36.0 F) |
| 2016 | 3.3 C (37.9 F) |
| 2017 | 3.9 C (39.0 F) |
| 2018 | 2.8 C (37.0 F) |
| 2019 | 1.1 C (34.0 F) |
| 2020 | 1.7 C (35.1 F) |
| 2021 | 3.9 C (39.0 F) |
| 2022 | 2.8 C (37.0 F) |
| 2023 | 3.3 C (37.9 F) |
| 2024 | 3.3 C (37.9 F) |
| 2025 | 2.8 C (37.0 F) |
| 2026 | 4.4 C (39.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1918 | 12.4 mm (0.5 in) |
| 1919 | 17.0 mm (0.7 in) |
| 1920 | 39.1 mm (1.5 in) |
| 1921 | 77.5 mm (3.1 in) |
| 1922 | 38.1 mm (1.5 in) |
| 1923 | 34.3 mm (1.4 in) |
| 1924 | 26.9 mm (1.1 in) |
| 1925 | 73.2 mm (2.9 in) |
| 1926 | 40.6 mm (1.6 in) |
| 1927 | 61.0 mm (2.4 in) |
| 1928 | 21.6 mm (0.9 in) |
| 1929 | 18.0 mm (0.7 in) |
| 1930 | 45.5 mm (1.8 in) |
| 1931 | 50.0 mm (2.0 in) |
| 1932 | 30.7 mm (1.2 in) |
| 1933 | 34.0 mm (1.3 in) |
| 1934 | 20.3 mm (0.8 in) |
| 1935 | 60.5 mm (2.4 in) |
| 1936 | 43.4 mm (1.7 in) |
| 1937 | 66.3 mm (2.6 in) |
| 1938 | 26.9 mm (1.1 in) |
| 1939 | 30.2 mm (1.2 in) |
| 1940 | 93.2 mm (3.7 in) |
| 1941 | 52.6 mm (2.1 in) |
| 1942 | 24.4 mm (1.0 in) |
| 1943 | 51.3 mm (2.0 in) |
| 1944 | 32.8 mm (1.3 in) |
| 1945 | 43.9 mm (1.7 in) |
| 1946 | 33.3 mm (1.3 in) |
| 1947 | 51.8 mm (2.0 in) |
| 1948 | 25.1 mm (1.0 in) |
| 1949 | 34.8 mm (1.4 in) |
| 1950 | 19.1 mm (0.8 in) |
| 1951 | 23.1 mm (0.9 in) |
| 1952 | 44.5 mm (1.8 in) |
| 1953 | 17.8 mm (0.7 in) |
| 1954 | 37.8 mm (1.5 in) |
| 1955 | 24.9 mm (1.0 in) |
| 1956 | 13.5 mm (0.5 in) |
| 1957 | 39.1 mm (1.5 in) |
| 1958 | 39.4 mm (1.6 in) |
| 1959 | 33.3 mm (1.3 in) |
| 1960 | 22.6 mm (0.9 in) |
| 1961 | 21.6 mm (0.9 in) |
| 1962 | 20.6 mm (0.8 in) |
| 1963 | 30.5 mm (1.2 in) |
| 1964 | 27.9 mm (1.1 in) |
| 1965 | 47.0 mm (1.9 in) |
| 1966 | 34.8 mm (1.4 in) |
| 1967 | 41.7 mm (1.6 in) |
| 1968 | 73.4 mm (2.9 in) |
| 1969 | 21.1 mm (0.8 in) |
| 1970 | 28.2 mm (1.1 in) |
| 1971 | 20.3 mm (0.8 in) |
| 1972 | 15.2 mm (0.6 in) |
| 1973 | 24.4 mm (1.0 in) |
| 1974 | 23.1 mm (0.9 in) |
| 1975 | 24.9 mm (1.0 in) |
| 1976 | 35.6 mm (1.4 in) |
| 1977 | 49.0 mm (1.9 in) |
| 1978 | 46.2 mm (1.8 in) |
| 1979 | 49.5 mm (1.9 in) |
| 1980 | 37.3 mm (1.5 in) |
| 1981 | 32.8 mm (1.3 in) |
| 1982 | 38.1 mm (1.5 in) |
| 1983 | 45.5 mm (1.8 in) |
| 1984 | 35.6 mm (1.4 in) |
| 1985 | 54.6 mm (2.1 in) |
| 1986 | 61.5 mm (2.4 in) |
| 1987 | 31.8 mm (1.3 in) |
| 1988 | 38.1 mm (1.5 in) |
| 1989 | 11.4 mm (0.4 in) |
| 1990 | 15.5 mm (0.6 in) |
| 1991 | 30.5 mm (1.2 in) |
| 1992 | 60.5 mm (2.4 in) |
| 1993 | 38.1 mm (1.5 in) |
| 1994 | 18.5 mm (0.7 in) |
| 1995 | 38.1 mm (1.5 in) |
| 1996 | 38.1 mm (1.5 in) |
| 1997 | 30.5 mm (1.2 in) |
| 1998 | 40.6 mm (1.6 in) |
| 1999 | 25.4 mm (1.0 in) |
| 2000 | 20.3 mm (0.8 in) |
| 2001 | 40.6 mm (1.6 in) |
| 2002 | 18.0 mm (0.7 in) |
| 2003 | 30.5 mm (1.2 in) |
| 2004 | 44.5 mm (1.8 in) |
| 2005 | 40.6 mm (1.6 in) |
| 2006 | 24.4 mm (1.0 in) |
| 2007 | 17.5 mm (0.7 in) |
| 2008 | 44.2 mm (1.7 in) |
| 2009 | 39.6 mm (1.6 in) |
| 2010 | 50.5 mm (2.0 in) |
| 2011 | 32.0 mm (1.3 in) |
| 2012 | 40.9 mm (1.6 in) |
| 2013 | 20.3 mm (0.8 in) |
| 2014 | 24.9 mm (1.0 in) |
| 2015 | 22.4 mm (0.9 in) |
| 2016 | 43.9 mm (1.7 in) |
| 2017 | 35.3 mm (1.4 in) |
| 2018 | 47.2 mm (1.9 in) |
| 2019 | 32.0 mm (1.3 in) |
| 2020 | 46.0 mm (1.8 in) |
| 2021 | 24.9 mm (1.0 in) |
| 2022 | 21.6 mm (0.9 in) |
| 2023 | 46.7 mm (1.8 in) |
| 2024 | 39.6 mm (1.6 in) |
| 2025 | 24.6 mm (1.0 in) |
| 2026 | 35.1 mm (1.4 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1918 | 20.5 mm (0.8 in) |
| 1919 | 28.0 mm (1.1 in) |
| 1920 | 60.5 mm (2.4 in) |
| 1921 | 108.0 mm (4.3 in) |
| 1922 | 45.8 mm (1.8 in) |
| 1923 | 50.1 mm (2.0 in) |
| 1924 | 35.0 mm (1.4 in) |
| 1925 | 90.0 mm (3.5 in) |
| 1926 | 81.8 mm (3.2 in) |
| 1927 | 152.1 mm (6.0 in) |
| 1928 | 42.4 mm (1.7 in) |
| 1929 | 23.6 mm (0.9 in) |
| 1930 | 81.6 mm (3.2 in) |
| 1931 | 83.9 mm (3.3 in) |
| 1932 | 67.5 mm (2.7 in) |
| 1933 | 83.8 mm (3.3 in) |
| 1934 | 43.4 mm (1.7 in) |
| 1935 | 140.6 mm (5.5 in) |
| 1936 | 78.0 mm (3.1 in) |
| 1937 | 73.9 mm (2.9 in) |
| 1938 | 84.9 mm (3.3 in) |
| 1939 | 53.8 mm (2.1 in) |
| 1940 | 118.3 mm (4.7 in) |
| 1941 | 83.8 mm (3.3 in) |
| 1942 | 32.0 mm (1.3 in) |
| 1943 | 120.4 mm (4.7 in) |
| 1944 | 74.3 mm (2.9 in) |
| 1945 | 67.8 mm (2.7 in) |
| 1946 | 48.1 mm (1.9 in) |
| 1947 | 84.1 mm (3.3 in) |
| 1948 | 43.9 mm (1.7 in) |
| 1949 | 71.2 mm (2.8 in) |
| 1950 | 23.7 mm (0.9 in) |
| 1951 | 39.1 mm (1.5 in) |
| 1952 | 72.9 mm (2.9 in) |
| 1953 | 20.9 mm (0.8 in) |
| 1954 | 90.6 mm (3.6 in) |
| 1955 | 38.9 mm (1.5 in) |
| 1956 | 24.4 mm (1.0 in) |
| 1957 | 61.5 mm (2.4 in) |
| 1958 | 46.0 mm (1.8 in) |
| 1959 | 36.3 mm (1.4 in) |
| 1960 | 71.3 mm (2.8 in) |
| 1961 | 24.9 mm (1.0 in) |
| 1962 | 56.7 mm (2.2 in) |
| 1963 | 43.2 mm (1.7 in) |
| 1964 | 35.7 mm (1.4 in) |
| 1965 | 83.6 mm (3.3 in) |
| 1966 | 49.2 mm (1.9 in) |
| 1967 | 69.1 mm (2.7 in) |
| 1968 | 74.9 mm (2.9 in) |
| 1969 | 43.7 mm (1.7 in) |
| 1970 | 57.7 mm (2.3 in) |
| 1971 | 28.4 mm (1.1 in) |
| 1972 | 32.2 mm (1.3 in) |
| 1973 | 32.8 mm (1.3 in) |
| 1974 | 47.9 mm (1.9 in) |
| 1975 | 42.2 mm (1.7 in) |
| 1976 | 93.2 mm (3.7 in) |
| 1977 | 58.0 mm (2.3 in) |
| 1978 | 66.8 mm (2.6 in) |
| 1979 | 63.0 mm (2.5 in) |
| 1980 | 56.1 mm (2.2 in) |
| 1981 | 80.0 mm (3.1 in) |
| 1982 | 76.2 mm (3.0 in) |
| 1983 | 128.6 mm (5.1 in) |
| 1984 | 47.3 mm (1.9 in) |
| 1985 | 101.9 mm (4.0 in) |
| 1986 | 67.4 mm (2.7 in) |
| 1987 | 45.8 mm (1.8 in) |
| 1988 | 47.5 mm (1.9 in) |
| 1989 | 16.8 mm (0.7 in) |
| 1990 | 39.3 mm (1.5 in) |
| 1991 | 65.3 mm (2.6 in) |
| 1992 | 102.4 mm (4.0 in) |
| 1993 | 106.2 mm (4.2 in) |
| 1994 | 44.2 mm (1.7 in) |
| 1995 | 73.2 mm (2.9 in) |
| 1996 | 39.4 mm (1.6 in) |
| 1997 | 50.5 mm (2.0 in) |
| 1998 | 60.6 mm (2.4 in) |
| 1999 | 52.8 mm (2.1 in) |
| 2000 | 48.8 mm (1.9 in) |
| 2001 | 82.2 mm (3.2 in) |
| 2002 | 34.5 mm (1.4 in) |
| 2003 | 66.9 mm (2.6 in) |
| 2004 | 51.8 mm (2.0 in) |
| 2005 | 96.0 mm (3.8 in) |
| 2006 | 19.0 mm (0.7 in) |
| 2007 | 31.0 mm (1.2 in) |
| 2008 | 52.6 mm (2.1 in) |
| 2009 | 54.7 mm (2.2 in) |
| 2010 | 102.9 mm (4.1 in) |
| 2011 | 36.6 mm (1.4 in) |
| 2012 | 50.8 mm (2.0 in) |
| 2013 | 35.3 mm (1.4 in) |
| 2014 | 54.4 mm (2.1 in) |
| 2015 | 29.5 mm (1.2 in) |
| 2016 | 64.7 mm (2.5 in) |
| 2017 | 54.4 mm (2.1 in) |
| 2018 | 58.9 mm (2.3 in) |
| 2019 | 54.4 mm (2.1 in) |
| 2020 | 110.7 mm (4.4 in) |
| 2021 | 33.3 mm (1.3 in) |
| 2022 | 30.0 mm (1.2 in) |
| 2023 | 76.4 mm (3.0 in) |
| 2024 | 54.9 mm (2.2 in) |
| 2025 | 38.8 mm (1.5 in) |
| 2026 | 50.3 mm (2.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1918 | 31 days |
| 1919 | 101 days |
| 1920 | 124 days |
| 1921 | 91 days |
| 1922 | 173 days |
| 1923 | 144 days |
| 1924 | 165 days |
| 1925 | 121 days |
| 1926 | 165 days |
| 1927 | 136 days |
| 1928 | 156 days |
| 1929 | 151 days |
| 1930 | 85 days |
| 1931 | 141 days |
| 1932 | 127 days |
| 1933 | 148 days |
| 1934 | 73 days |
| 1935 | 117 days |
| 1936 | 86 days |
| 1937 | 133 days |
| 1938 | 108 days |
| 1939 | 134 days |
| 1940 | 182 days |
| 1941 | 85 days |
| 1942 | 183 days |
| 1943 | 74 days |
| 1944 | 170 days |
| 1945 | 144 days |
| 1946 | 178 days |
| 1947 | 100 days |
| 1948 | 171 days |
| 1949 | 141 days |
| 1950 | 193 days |
| 1951 | 119 days |
| 1952 | 142 days |
| 1953 | 139 days |
| 1954 | 225 days |
| 1955 | 172 days |
| 1956 | 149 days |
| 1957 | 122 days |
| 1958 | 94 days |
| 1959 | 156 days |
| 1960 | 137 days |
| 1961 | 128 days |
| 1962 | 184 days |
| 1963 | 83 days |
| 1964 | 178 days |
| 1965 | 157 days |
| 1966 | 106 days |
| 1967 | 64 days |
| 1968 | 97 days |
| 1969 | 162 days |
| 1970 | 212 days |
| 1971 | 109 days |
| 1972 | 79 days |
| 1973 | 201 days |
| 1974 | 124 days |
| 1975 | 141 days |
| 1976 | 123 days |
| 1977 | 96 days |
| 1978 | 152 days |
| 1979 | 163 days |
| 1980 | 157 days |
| 1981 | 136 days |
| 1982 | 82 days |
| 1983 | 109 days |
| 1984 | 91 days |
| 1985 | 129 days |
| 1986 | 169 days |
| 1987 | 97 days |
| 1988 | 168 days |
| 1989 | 111 days |
| 1990 | 162 days |
| 1991 | 129 days |
| 1992 | 152 days |
| 1993 | 125 days |
| 1994 | 151 days |
| 1995 | 136 days |
| 1996 | 190 days |
| 1997 | 173 days |
| 1998 | 76 days |
| 1999 | 176 days |
| 2000 | 173 days |
| 2001 | 231 days |
| 2002 | 195 days |
| 2003 | 93 days |
| 2004 | 175 days |
| 2005 | 62 days |
| 2006 | 73 days |
| 2007 | 173 days |
| 2008 | 87 days |
| 2009 | 233 days |
| 2010 | 159 days |
| 2011 | 99 days |
| 2012 | 119 days |
| 2013 | 155 days |
| 2014 | 97 days |
| 2015 | 66 days |
| 2016 | 111 days |
| 2017 | 152 days |
| 2018 | 155 days |
| 2019 | 99 days |
| 2020 | 118 days |
| 2021 | 90 days |
| 2022 | 139 days |
| 2023 | 69 days |
| 2024 | 180 days |
| 2025 | 116 days |
| 2026 | 118 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
101 years, 1919 to 2025A day with at least 33.3 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 83.8 mm (3.3 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 33.3 mm (1.3 in) | |
| 5 years | 46.8 mm (1.8 in) | |
| 10 years | 55.8 mm (2.2 in) | |
| 25 years | 67.1 mm (2.6 in) | |
| 50 years | 75.4 mm (3.0 in) | |
| 100 years | 83.8 mm (3.3 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 101 years of values from 1919 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: 93.2 mm (3.7 in) in 1940; 77.5 mm (3.1 in) in 1921; 73.4 mm (2.9 in) in 1968.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Chula Vista, at 1958 and 1982. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1958 ran 0.3 C (0.6 F) lower than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1982 ran 0.8 C (1.4 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1958 | -0.3 | -0.6 | likely | 5 |
| 1982 | +0.8 | +1.4 | 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
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Chula Vista had a mean temperature of 17.8 C (64.0 F) and 225.9 mm (8.9 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are El Rosario (Mexico, 316 km away), Santa Ana Fire STN (United States, 143 km away) and Tustin McAf (United States, 137 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| El Rosario | Mexico | 316 km (196 mi) | 18.0 C (64.3 F) | 206.7 mm (8.1 in) | 0.59 |
| Santa Ana Fire STN | United States | 143 km (89 mi) | 18.2 C (64.7 F) | 318.3 mm (12.5 in) | 0.67 |
| Tustin McAf | United States | 137 km (85 mi) | 17.7 C (63.9 F) | 283.0 mm (11.1 in) | 0.69 |
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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-15).