U C L A Weather Records (USC00049152)
Record envelope, standing records and threshold days for U C L A (USC00049152), California, United States, with 94 years of record.
Key Facts for U C L A
- U C L A (USC00049152) is a weather station in California, United States at 34.07 latitude and -118.44 longitude, 131 m (430 ft) above sea level.
- The station reports from 1933 to 2026, 94 years of record.
- 1,464 records set at U C L A still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- U C L A set a daily record high minimum temperature of 26.1 C (79.0 F) on 5 October 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, 34.07 latitude, -118.44 longitude.
- Elevation: 131 m (430 ft).
- Period of record: 1933 to 2026, 94 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
6 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 32.8 C (91.0 F) | -1.1 C (30.0 F) | 29.4 C (84.9 F) | 8.3 C (46.9 F) |
| Feb | 32.8 C (91.0 F) | 0.6 C (33.1 F) | 31.1 C (88.0 F) | 5.6 C (42.1 F) |
| Mar | 34.4 C (93.9 F) | 1.1 C (34.0 F) | 33.9 C (93.0 F) | 11.1 C (52.0 F) |
| Apr | 39.4 C (102.9 F) | 2.8 C (37.0 F) | 30.6 C (87.1 F) | 10.6 C (51.1 F) |
| May | 36.1 C (97.0 F) | 6.1 C (43.0 F) | 26.7 C (80.1 F) | 11.7 C (53.1 F) |
| Jun | 38.9 C (102.0 F) | 6.7 C (44.1 F) | 25.0 C (77.0 F) | 13.9 C (57.0 F) |
| Jul | 39.4 C (102.9 F) | 10.6 C (51.1 F) | 28.9 C (84.0 F) | 15.0 C (59.0 F) |
| Aug | 37.2 C (99.0 F) | 10.0 C (50.0 F) | 32.2 C (90.0 F) | 17.8 C (64.0 F) |
| Sep | 42.8 C (109.0 F) | 8.3 C (46.9 F) | 36.7 C (98.1 F) | 16.1 C (61.0 F) |
| Oct | 39.4 C (102.9 F) | 4.4 C (39.9 F) | 37.8 C (100.0 F) | 17.8 C (64.0 F) |
| Nov | 37.2 C (99.0 F) | 0.6 C (33.1 F) | n/a | n/a |
| Dec | 34.4 C (93.9 F) | -3.9 C (25.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1933 | 71 |
| 1934 | 11 |
| 1935 | 39 |
| 1936 | 23 |
| 1937 | 30 |
| 1938 | 19 |
| 1939 | 36 |
| 1940 | 19 |
| 1941 | 14 |
| 1942 | 15 |
| 1943 | 20 |
| 1944 | 17 |
| 1945 | 16 |
| 1946 | 12 |
| 1947 | 4 |
| 1948 | 15 |
| 1949 | 35 |
| 1950 | 26 |
| 1951 | 24 |
| 1952 | 27 |
| 1953 | 24 |
| 1954 | 22 |
| 1955 | 26 |
| 1956 | 20 |
| 1957 | 22 |
| 1958 | 18 |
| 1959 | 8 |
| 1960 | 11 |
| 1961 | 10 |
| 1962 | 24 |
| 1963 | 25 |
| 1964 | 17 |
| 1965 | 21 |
| 1966 | 4 |
| 1967 | 11 |
| 1968 | 15 |
| 1969 | 10 |
| 1970 | 9 |
| 1971 | 36 |
| 1972 | 15 |
| 1973 | 17 |
| 1974 | 4 |
| 1975 | 33 |
| 1976 | 19 |
| 1977 | 13 |
| 1978 | 14 |
| 1979 | 25 |
| 1980 | 11 |
| 1981 | 12 |
| 1982 | 7 |
| 1983 | 10 |
| 1984 | 11 |
| 1985 | 21 |
| 1986 | 12 |
| 1987 | 15 |
| 1988 | 14 |
| 1989 | 22 |
| 1990 | 17 |
| 1991 | 5 |
| 1992 | 3 |
| 1993 | 1 |
| 1994 | 7 |
| 1995 | 8 |
| 1996 | 7 |
| 1997 | 18 |
| 1998 | 4 |
| 1999 | 9 |
| 2000 | 1 |
| 2001 | 3 |
| 2002 | 7 |
| 2003 | 9 |
| 2004 | 15 |
| 2005 | 5 |
| 2006 | 25 |
| 2007 | 14 |
| 2008 | 20 |
| 2009 | 14 |
| 2010 | 16 |
| 2011 | 7 |
| 2012 | 11 |
| 2013 | 9 |
| 2014 | 12 |
| 2015 | 17 |
| 2016 | 20 |
| 2017 | 17 |
| 2018 | 15 |
| 2019 | 4 |
| 2020 | 25 |
| 2021 | 8 |
| 2022 | 10 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 5 |
| 2026 | 11 |
All-Time Record Progression
1 new records| Date | Kind | Detail |
|---|---|---|
| 2024-02-05 | Record daily precipitation | Record daily precipitation 264.2 mm (10.4 in) |
Wettest Day of Each Month
Feb: 264.2 mm (10.4 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 146.1 mm (5.8 in) | 26 January 1956 |
| Feb | 264.2 mm (10.4 in) | 5 February 2024 |
| Mar | 116.8 mm (4.6 in) | 2 March 1938 |
| Apr | 96.3 mm (3.8 in) | 8 April 1935 |
| May | 58.9 mm (2.3 in) | 8 May 1977 |
| Jun | 32.8 mm (1.3 in) | 5 June 1993 |
| Jul | 6.4 mm (0.25 in) | 11 July 1969 |
| Aug | 78.0 mm (3.1 in) | 17 August 1977 |
| Sep | 66.5 mm (2.6 in) | 15 September 2015 |
| Oct | 77.0 mm (3.0 in) | 14 October 2009 |
| Nov | 130.3 mm (5.1 in) | 29 November 1970 |
| Dec | 160.0 mm (6.3 in) | 31 December 1933 |
Period of Record Coverage
1933 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1933 | 306 | 84% | No |
| 1934 | 364 | 100% | Yes |
| 1935 | 334 | 92% | Yes |
| 1936 | 305 | 83% | No |
| 1937 | 360 | 99% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 364 | 100% | Yes |
| 1940 | 363 | 99% | Yes |
| 1941 | 274 | 75% | No |
| 1942 | 334 | 92% | Yes |
| 1943 | 355 | 97% | Yes |
| 1944 | 364 | 99% | Yes |
| 1945 | 326 | 89% | No |
| 1946 | 352 | 96% | Yes |
| 1947 | 339 | 93% | Yes |
| 1948 | 340 | 93% | Yes |
| 1949 | 364 | 100% | Yes |
| 1950 | 354 | 97% | Yes |
| 1951 | 362 | 99% | Yes |
| 1952 | 363 | 99% | Yes |
| 1953 | 364 | 100% | Yes |
| 1954 | 364 | 100% | Yes |
| 1955 | 357 | 98% | Yes |
| 1956 | 362 | 99% | Yes |
| 1957 | 355 | 97% | Yes |
| 1958 | 363 | 99% | Yes |
| 1959 | 349 | 96% | Yes |
| 1960 | 338 | 92% | Yes |
| 1961 | 348 | 95% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 364 | 100% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 363 | 99% | Yes |
| 1966 | 363 | 99% | Yes |
| 1967 | 360 | 99% | 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 | 366 | 100% | Yes |
| 1977 | 333 | 91% | Yes |
| 1978 | 273 | 75% | No |
| 1979 | 365 | 100% | Yes |
| 1980 | 334 | 91% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 364 | 100% | Yes |
| 1983 | 363 | 99% | Yes |
| 1984 | 363 | 99% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 363 | 99% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 361 | 99% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 335 | 92% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 364 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 364 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 365 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 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 | 363 | 99% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 279 | 76% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 5 October 2026 | U C L A, US | daily high min (Provisional) | 26.1 C (79.0 F) | 4.4 C (7.9 F) | 39 years | 35 of 100 (Notable) |
| 5 October 2026 | U C L A, US | daily high max (Provisional) | 37.8 C (100.0 F) | 0.6 C (1.1 F) | 72 years | 31 of 100 (Routine) |
| 4 October 2026 | U C L A, US | daily high min (Provisional) | 26.1 C (79.0 F) | 0.5 C (0.9 F) | 39 years | 21 of 100 (Routine) |
| 3 October 2026 | U C L A, US | daily high min (Provisional) | 25.0 C (77.0 F) | 1.1 C (2.0 F) | 12 years | 15 of 100 (Routine) |
| 10 September 2026 | U C L A, US | daily high min (Tie, Provisional) | 24.4 C (75.9 F) | tie | 11 years | 3 of 100 (Routine) |
| 7 September 2026 | U C L A, US | daily rain (Provisional) | 7.4 mm (0.29 in) | 6.9 mm (0.27 in) | 68 years | 20 of 100 (Routine) |
| 6 September 2026 | U C L A, US | daily rain (Provisional) | 22.6 mm (0.9 in) | 18.0 mm (0.7 in) | 48 years | 20 of 100 (Routine) |
| 29 August 2026 | U C L A, US | daily high min (Provisional) | 22.2 C (72.0 F) | 0.5 C (0.9 F) | 41 years | 23 of 100 (Routine) |
| 28 August 2026 | U C L A, US | daily high min (Provisional) | 23.3 C (73.9 F) | 1.1 C (2.0 F) | 11 years | 17 of 100 (Routine) |
| 27 August 2026 | U C L A, US | daily high min (Provisional) | 23.9 C (75.0 F) | 1.7 C (3.1 F) | 44 years | 30 of 100 (Routine) |
| 26 August 2026 | U C L A, US | daily high min (Tie, Provisional) | 21.7 C (71.1 F) | tie | 44 years | 5 of 100 (Routine) |
| 6 June 2026 | U C L A, US | daily high min (Tie) | 17.2 C (63.0 F) | tie | 4 years | 2 of 100 (Routine) |
| 20 May 2026 | U C L A, US | daily high min (Tie) | 17.8 C (64.0 F) | tie | 8 years | 2 of 100 (Routine) |
| 19 March 2026 | U C L A, US | daily high min | 17.2 C (63.0 F) | 1.1 C (2.0 F) | 28 years | 21 of 100 (Routine) |
| 18 March 2026 | U C L A, US | daily high min | 19.4 C (66.9 F) | 2.7 C (4.9 F) | 60 years | 37 of 100 (Notable) |
| 18 March 2026 | U C L A, US | daily high max | 31.7 C (89.1 F) | 3.9 C (7.0 F) | 61 years | 36 of 100 (Notable) |
| 17 March 2026 | U C L A, US | daily high max | 33.9 C (93.0 F) | 4.5 C (8.1 F) | 16 years | 24 of 100 (Routine) |
| 13 March 2026 | U C L A, US | daily high max | 31.7 C (89.1 F) | 1.1 C (2.0 F) | 32 years | 20 of 100 (Routine) |
| 13 March 2026 | U C L A, US | monthly high min (Tie) | 22.8 C (73.0 F) | tie | 37 years | 7 of 100 (Routine) |
| 28 February 2026 | U C L A, US | daily high min | 20.0 C (68.0 F) | 0.6 C (1.1 F) | 6 years | 11 of 100 (Routine) |
Climate Trend
83 complete years, 1934 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1934 | 17.6 C | +0.06 C |
| 1937 | 16.4 C | -1.12 C |
| 1938 | 17.2 C | -0.31 C |
| 1939 | 17.4 C | -0.14 C |
| 1940 | 17.6 C | +0.08 C |
| 1943 | 17.3 C | -0.19 C |
| 1944 | 16.5 C | -1.06 C |
| 1946 | 16.6 C | -0.89 C |
| 1947 | 17.2 C | -0.29 C |
| 1948 | 16.1 C | -1.40 C |
| 1949 | 16.3 C | -1.23 C |
| 1950 | 16.4 C | -1.12 C |
| 1951 | 16.3 C | -1.24 C |
| 1952 | 16.1 C | -1.44 C |
| 1953 | 16.7 C | -0.84 C |
| 1954 | 17.0 C | -0.48 C |
| 1955 | 16.4 C | -1.14 C |
| 1956 | 16.9 C | -0.60 C |
| 1957 | 17.0 C | -0.48 C |
| 1958 | 18.1 C | +0.62 C |
| 1959 | 17.9 C | +0.43 C |
| 1960 | 17.4 C | -0.09 C |
| 1961 | 17.6 C | +0.12 C |
| 1962 | 16.2 C | -1.27 C |
| 1963 | 17.6 C | +0.10 C |
| 1964 | 17.6 C | +0.12 C |
| 1965 | 17.6 C | +0.05 C |
| 1966 | 17.6 C | +0.04 C |
| 1967 | 18.0 C | +0.46 C |
| 1968 | 18.1 C | +0.59 C |
| 1969 | 17.5 C | +0.03 C |
| 1970 | 17.6 C | +0.08 C |
| 1971 | 17.1 C | -0.46 C |
| 1972 | 17.2 C | -0.28 C |
| 1973 | 16.5 C | -1.02 C |
| 1974 | 16.7 C | -0.81 C |
| 1975 | 15.8 C | -1.74 C |
| 1976 | 17.8 C | +0.32 C |
| 1979 | 17.6 C | +0.05 C |
| 1981 | 17.8 C | +0.29 C |
| 1982 | 17.0 C | -0.54 C |
| 1983 | 17.8 C | +0.26 C |
| 1984 | 18.3 C | +0.79 C |
| 1985 | 17.3 C | -0.26 C |
| 1986 | 17.8 C | +0.24 C |
| 1987 | 17.1 C | -0.38 C |
| 1988 | 17.5 C | -0.05 C |
| 1989 | 17.5 C | +0.02 C |
| 1990 | 17.6 C | +0.13 C |
| 1991 | 17.1 C | -0.40 C |
| 1993 | 17.7 C | +0.19 C |
| 1994 | 17.4 C | -0.07 C |
| 1995 | 17.6 C | +0.11 C |
| 1996 | 17.9 C | +0.35 C |
| 1997 | 18.9 C | +1.40 C |
| 1998 | 17.6 C | +0.08 C |
| 1999 | 17.2 C | -0.36 C |
| 2000 | 17.6 C | +0.09 C |
| 2001 | 16.9 C | -0.65 C |
| 2002 | 17.1 C | -0.44 C |
| 2003 | 17.9 C | +0.35 C |
| 2004 | 17.7 C | +0.18 C |
| 2005 | 17.7 C | +0.16 C |
| 2006 | 18.0 C | +0.48 C |
| 2007 | 17.8 C | +0.31 C |
| 2008 | 18.3 C | +0.79 C |
| 2009 | 18.2 C | +0.71 C |
| 2010 | 17.3 C | -0.25 C |
| 2011 | 17.5 C | -0.06 C |
| 2012 | 17.9 C | +0.40 C |
| 2013 | 18.0 C | +0.50 C |
| 2014 | 19.5 C | +1.95 C |
| 2015 | 19.6 C | +2.04 C |
| 2016 | 19.0 C | +1.44 C |
| 2017 | 19.1 C | +1.56 C |
| 2018 | 18.8 C | +1.25 C |
| 2019 | 18.0 C | +0.45 C |
| 2020 | 18.9 C | +1.38 C |
| 2021 | 18.2 C | +0.72 C |
| 2022 | 18.8 C | +1.30 C |
| 2023 | 17.3 C | -0.17 C |
| 2024 | 17.3 C | -0.21 C |
| 2025 | 17.8 C | +0.27 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.2) per decade over 1934 to 2025. In Fahrenheit: 0.3 F (0.2 to 0.4) per decade. The slope is a straight line fitted to 83 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 | 1934 to 2025 | 83 | Rise |
| Mean daily maximum | 0.11 C (0.04 to 0.17) per decade | 0.2 F (0.1 to 0.3) per decade | 1934 to 2025 | 83 | Rise |
| Mean daily minimum | 0.2 C (0.2 to 0.3) per decade | 0.4 F (0.3 to 0.5) per decade | 1934 to 2025 | 83 | 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
1933 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.8 C (109.0 F) | 1939 | 36.7 C (98.1 F) | 94 |
| Coldest night (TNn) | -3.9 C (25.0 F) | 1941 | 4.4 C (39.9 F) | 94 |
| Wettest day (Rx1day) | 264.2 mm (10.4 in) | 2024 | 65.5 mm (2.6 in) | 94 |
| Wettest five days (Rx5day) | 376.8 mm (14.8 in) | 1980 | 105.2 mm (4.1 in) | 94 |
| Longest dry spell (CDD) | 223 days | 2020 | 138 days | 94 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1933 | 36.7 C (98.1 F) |
| 1934 | 36.7 C (98.1 F) |
| 1935 | 37.2 C (99.0 F) |
| 1936 | 37.2 C (99.0 F) |
| 1937 | 36.1 C (97.0 F) |
| 1938 | 36.1 C (97.0 F) |
| 1939 | 42.8 C (109.0 F) |
| 1940 | 38.3 C (100.9 F) |
| 1941 | 36.1 C (97.0 F) |
| 1942 | 36.7 C (98.1 F) |
| 1943 | 36.1 C (97.0 F) |
| 1944 | 38.3 C (100.9 F) |
| 1945 | 37.8 C (100.0 F) |
| 1946 | 34.4 C (93.9 F) |
| 1947 | 32.8 C (91.0 F) |
| 1948 | 35.0 C (95.0 F) |
| 1949 | 35.6 C (96.1 F) |
| 1950 | 37.2 C (99.0 F) |
| 1951 | 35.6 C (96.1 F) |
| 1952 | 32.2 C (90.0 F) |
| 1953 | 37.8 C (100.0 F) |
| 1954 | 33.9 C (93.0 F) |
| 1955 | 41.7 C (107.1 F) |
| 1956 | 36.1 C (97.0 F) |
| 1957 | 36.1 C (97.0 F) |
| 1958 | 39.4 C (102.9 F) |
| 1959 | 39.4 C (102.9 F) |
| 1960 | 33.3 C (91.9 F) |
| 1961 | 38.9 C (102.0 F) |
| 1962 | 33.3 C (91.9 F) |
| 1963 | 41.7 C (107.1 F) |
| 1964 | 34.4 C (93.9 F) |
| 1965 | 36.1 C (97.0 F) |
| 1966 | 34.4 C (93.9 F) |
| 1967 | 36.7 C (98.1 F) |
| 1968 | 36.1 C (97.0 F) |
| 1969 | 33.9 C (93.0 F) |
| 1970 | 38.3 C (100.9 F) |
| 1971 | 37.2 C (99.0 F) |
| 1972 | 34.4 C (93.9 F) |
| 1973 | 37.2 C (99.0 F) |
| 1974 | 34.4 C (93.9 F) |
| 1975 | 37.2 C (99.0 F) |
| 1976 | 36.1 C (97.0 F) |
| 1977 | 32.2 C (90.0 F) |
| 1978 | 40.0 C (104.0 F) |
| 1979 | 38.9 C (102.0 F) |
| 1980 | 34.4 C (93.9 F) |
| 1981 | 36.7 C (98.1 F) |
| 1982 | 35.0 C (95.0 F) |
| 1983 | 36.7 C (98.1 F) |
| 1984 | 39.4 C (102.9 F) |
| 1985 | 37.8 C (100.0 F) |
| 1986 | 32.2 C (90.0 F) |
| 1987 | 38.9 C (102.0 F) |
| 1988 | 41.1 C (106.0 F) |
| 1989 | 39.4 C (102.9 F) |
| 1990 | 36.7 C (98.1 F) |
| 1991 | 38.3 C (100.9 F) |
| 1992 | 34.4 C (93.9 F) |
| 1993 | 32.8 C (91.0 F) |
| 1994 | 36.1 C (97.0 F) |
| 1995 | 34.4 C (93.9 F) |
| 1996 | 33.9 C (93.0 F) |
| 1997 | 37.2 C (99.0 F) |
| 1998 | 36.7 C (98.1 F) |
| 1999 | 36.7 C (98.1 F) |
| 2000 | 36.1 C (97.0 F) |
| 2001 | 31.7 C (89.1 F) |
| 2002 | 36.1 C (97.0 F) |
| 2003 | 33.9 C (93.0 F) |
| 2004 | 37.8 C (100.0 F) |
| 2005 | 34.4 C (93.9 F) |
| 2006 | 34.4 C (93.9 F) |
| 2007 | 35.6 C (96.1 F) |
| 2008 | 36.7 C (98.1 F) |
| 2009 | 37.2 C (99.0 F) |
| 2010 | 42.2 C (108.0 F) |
| 2011 | 37.2 C (99.0 F) |
| 2012 | 36.7 C (98.1 F) |
| 2013 | 33.9 C (93.0 F) |
| 2014 | 36.7 C (98.1 F) |
| 2015 | 36.7 C (98.1 F) |
| 2016 | 38.3 C (100.9 F) |
| 2017 | 38.3 C (100.9 F) |
| 2018 | 33.9 C (93.0 F) |
| 2019 | 34.4 C (93.9 F) |
| 2020 | 40.6 C (105.1 F) |
| 2021 | 34.4 C (93.9 F) |
| 2022 | 40.0 C (104.0 F) |
| 2023 | 33.3 C (91.9 F) |
| 2024 | 40.6 C (105.1 F) |
| 2025 | 34.4 C (93.9 F) |
| 2026 | 37.8 C (100.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1933 | 2.8 C (37.0 F) |
| 1934 | 4.4 C (39.9 F) |
| 1935 | 2.2 C (36.0 F) |
| 1936 | 1.1 C (34.0 F) |
| 1937 | -1.1 C (30.0 F) |
| 1938 | 4.4 C (39.9 F) |
| 1939 | 1.7 C (35.1 F) |
| 1940 | 5.0 C (41.0 F) |
| 1941 | -3.9 C (25.0 F) |
| 1942 | 0.6 C (33.1 F) |
| 1943 | 4.4 C (39.9 F) |
| 1944 | 1.7 C (35.1 F) |
| 1945 | 3.3 C (37.9 F) |
| 1946 | 3.9 C (39.0 F) |
| 1947 | 2.8 C (37.0 F) |
| 1948 | 2.8 C (37.0 F) |
| 1949 | -1.1 C (30.0 F) |
| 1950 | 2.8 C (37.0 F) |
| 1951 | 3.3 C (37.9 F) |
| 1952 | 3.9 C (39.0 F) |
| 1953 | 2.8 C (37.0 F) |
| 1954 | 4.4 C (39.9 F) |
| 1955 | 3.9 C (39.0 F) |
| 1956 | 3.3 C (37.9 F) |
| 1957 | -0.6 C (30.9 F) |
| 1958 | 0.6 C (33.1 F) |
| 1959 | 4.4 C (39.9 F) |
| 1960 | 3.9 C (39.0 F) |
| 1961 | 6.1 C (43.0 F) |
| 1962 | 3.9 C (39.0 F) |
| 1963 | 2.2 C (36.0 F) |
| 1964 | 7.2 C (45.0 F) |
| 1965 | 6.7 C (44.1 F) |
| 1966 | 5.6 C (42.1 F) |
| 1967 | 2.8 C (37.0 F) |
| 1968 | 1.1 C (34.0 F) |
| 1969 | 3.9 C (39.0 F) |
| 1970 | 5.0 C (41.0 F) |
| 1971 | 2.8 C (37.0 F) |
| 1972 | 1.7 C (35.1 F) |
| 1973 | 3.3 C (37.9 F) |
| 1974 | 4.4 C (39.9 F) |
| 1975 | 2.2 C (36.0 F) |
| 1976 | 3.3 C (37.9 F) |
| 1977 | 4.4 C (39.9 F) |
| 1978 | 2.8 C (37.0 F) |
| 1979 | 3.3 C (37.9 F) |
| 1980 | 6.1 C (43.0 F) |
| 1981 | 5.6 C (42.1 F) |
| 1982 | 4.4 C (39.9 F) |
| 1983 | 5.6 C (42.1 F) |
| 1984 | 5.6 C (42.1 F) |
| 1985 | 4.4 C (39.9 F) |
| 1986 | 5.6 C (42.1 F) |
| 1987 | 3.3 C (37.9 F) |
| 1988 | 3.3 C (37.9 F) |
| 1989 | 2.2 C (36.0 F) |
| 1990 | 0.6 C (33.1 F) |
| 1991 | 3.9 C (39.0 F) |
| 1992 | 6.1 C (43.0 F) |
| 1993 | 5.6 C (42.1 F) |
| 1994 | 5.0 C (41.0 F) |
| 1995 | 5.6 C (42.1 F) |
| 1996 | 3.9 C (39.0 F) |
| 1997 | 6.7 C (44.1 F) |
| 1998 | 4.4 C (39.9 F) |
| 1999 | 5.0 C (41.0 F) |
| 2000 | 5.0 C (41.0 F) |
| 2001 | 4.4 C (39.9 F) |
| 2002 | 3.3 C (37.9 F) |
| 2003 | 6.1 C (43.0 F) |
| 2004 | 6.1 C (43.0 F) |
| 2005 | 6.7 C (44.1 F) |
| 2006 | 3.3 C (37.9 F) |
| 2007 | 2.2 C (36.0 F) |
| 2008 | 4.4 C (39.9 F) |
| 2009 | 3.3 C (37.9 F) |
| 2010 | 4.4 C (39.9 F) |
| 2011 | 4.4 C (39.9 F) |
| 2012 | 3.9 C (39.0 F) |
| 2013 | 3.9 C (39.0 F) |
| 2014 | 6.7 C (44.1 F) |
| 2015 | 4.4 C (39.9 F) |
| 2016 | 5.6 C (42.1 F) |
| 2017 | 5.0 C (41.0 F) |
| 2018 | 5.0 C (41.0 F) |
| 2019 | 5.0 C (41.0 F) |
| 2020 | 6.7 C (44.1 F) |
| 2021 | 5.0 C (41.0 F) |
| 2022 | 6.1 C (43.0 F) |
| 2023 | 4.4 C (39.9 F) |
| 2024 | 6.1 C (43.0 F) |
| 2025 | 6.7 C (44.1 F) |
| 2026 | 5.6 C (42.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1933 | 160.0 mm (6.3 in) |
| 1934 | 96.5 mm (3.8 in) |
| 1935 | 96.3 mm (3.8 in) |
| 1936 | 47.2 mm (1.9 in) |
| 1937 | 94.0 mm (3.7 in) |
| 1938 | 116.8 mm (4.6 in) |
| 1939 | 48.3 mm (1.9 in) |
| 1940 | 75.2 mm (3.0 in) |
| 1941 | 62.5 mm (2.5 in) |
| 1942 | 23.6 mm (0.9 in) |
| 1943 | 109.2 mm (4.3 in) |
| 1944 | 93.2 mm (3.7 in) |
| 1945 | 57.7 mm (2.3 in) |
| 1946 | 53.3 mm (2.1 in) |
| 1947 | 31.2 mm (1.2 in) |
| 1948 | 38.6 mm (1.5 in) |
| 1949 | 37.8 mm (1.5 in) |
| 1950 | 25.4 mm (1.0 in) |
| 1951 | 65.0 mm (2.6 in) |
| 1952 | 96.3 mm (3.8 in) |
| 1953 | 36.1 mm (1.4 in) |
| 1954 | 119.6 mm (4.7 in) |
| 1955 | 37.3 mm (1.5 in) |
| 1956 | 146.1 mm (5.8 in) |
| 1957 | 81.0 mm (3.2 in) |
| 1958 | 82.3 mm (3.2 in) |
| 1959 | 51.8 mm (2.0 in) |
| 1960 | 61.0 mm (2.4 in) |
| 1961 | 38.1 mm (1.5 in) |
| 1962 | 81.5 mm (3.2 in) |
| 1963 | 45.7 mm (1.8 in) |
| 1964 | 39.1 mm (1.5 in) |
| 1965 | 77.0 mm (3.0 in) |
| 1966 | 66.0 mm (2.6 in) |
| 1967 | 80.0 mm (3.1 in) |
| 1968 | 111.0 mm (4.4 in) |
| 1969 | 117.3 mm (4.6 in) |
| 1970 | 130.3 mm (5.1 in) |
| 1971 | 64.0 mm (2.5 in) |
| 1972 | 43.4 mm (1.7 in) |
| 1973 | 71.1 mm (2.8 in) |
| 1974 | 95.8 mm (3.8 in) |
| 1975 | 59.7 mm (2.4 in) |
| 1976 | 43.9 mm (1.7 in) |
| 1977 | 78.0 mm (3.1 in) |
| 1978 | 66.0 mm (2.6 in) |
| 1979 | 53.3 mm (2.1 in) |
| 1980 | 105.2 mm (4.1 in) |
| 1981 | 41.9 mm (1.6 in) |
| 1982 | 59.7 mm (2.4 in) |
| 1983 | 90.7 mm (3.6 in) |
| 1984 | 20.8 mm (0.8 in) |
| 1985 | 60.5 mm (2.4 in) |
| 1986 | 97.3 mm (3.8 in) |
| 1987 | 37.3 mm (1.5 in) |
| 1988 | 44.2 mm (1.7 in) |
| 1989 | 23.9 mm (0.9 in) |
| 1990 | 133.6 mm (5.3 in) |
| 1991 | 58.9 mm (2.3 in) |
| 1992 | 66.8 mm (2.6 in) |
| 1993 | 142.2 mm (5.6 in) |
| 1994 | 44.5 mm (1.8 in) |
| 1995 | 134.1 mm (5.3 in) |
| 1996 | 79.0 mm (3.1 in) |
| 1997 | 71.1 mm (2.8 in) |
| 1998 | 100.3 mm (3.9 in) |
| 1999 | 27.4 mm (1.1 in) |
| 2000 | 55.4 mm (2.2 in) |
| 2001 | 130.0 mm (5.1 in) |
| 2002 | 58.9 mm (2.3 in) |
| 2003 | 105.4 mm (4.1 in) |
| 2004 | 102.6 mm (4.0 in) |
| 2005 | 102.4 mm (4.0 in) |
| 2006 | 61.2 mm (2.4 in) |
| 2007 | 28.7 mm (1.1 in) |
| 2008 | 66.0 mm (2.6 in) |
| 2009 | 77.0 mm (3.0 in) |
| 2010 | 104.4 mm (4.1 in) |
| 2011 | 72.9 mm (2.9 in) |
| 2012 | 25.9 mm (1.0 in) |
| 2013 | 24.6 mm (1.0 in) |
| 2014 | 56.6 mm (2.2 in) |
| 2015 | 66.5 mm (2.6 in) |
| 2016 | 46.2 mm (1.8 in) |
| 2017 | 49.3 mm (1.9 in) |
| 2018 | 64.3 mm (2.5 in) |
| 2019 | 61.5 mm (2.4 in) |
| 2020 | 44.7 mm (1.8 in) |
| 2021 | 109.0 mm (4.3 in) |
| 2022 | 45.2 mm (1.8 in) |
| 2023 | 109.2 mm (4.3 in) |
| 2024 | 264.2 mm (10.4 in) |
| 2025 | 69.6 mm (2.7 in) |
| 2026 | 53.6 mm (2.1 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1933 | 4.8 mm (0.19 in) |
| 1934 | 72.1 mm (2.8 in) |
| 1935 | 99.6 mm (3.9 in) |
| 1936 | 89.0 mm (3.5 in) |
| 1937 | 108.2 mm (4.3 in) |
| 1938 | 292.9 mm (11.5 in) |
| 1939 | 58.6 mm (2.3 in) |
| 1940 | 115.3 mm (4.5 in) |
| 1941 | 170.0 mm (6.7 in) |
| 1942 | 57.2 mm (2.3 in) |
| 1943 | 146.0 mm (5.7 in) |
| 1944 | 175.0 mm (6.9 in) |
| 1945 | 138.4 mm (5.4 in) |
| 1946 | 128.2 mm (5.0 in) |
| 1947 | 36.0 mm (1.4 in) |
| 1948 | 57.9 mm (2.3 in) |
| 1949 | 57.1 mm (2.2 in) |
| 1950 | 44.5 mm (1.8 in) |
| 1951 | 97.6 mm (3.8 in) |
| 1952 | 208.0 mm (8.2 in) |
| 1953 | 36.1 mm (1.4 in) |
| 1954 | 159.5 mm (6.3 in) |
| 1955 | 46.4 mm (1.8 in) |
| 1956 | 225.4 mm (8.9 in) |
| 1957 | 81.0 mm (3.2 in) |
| 1958 | 88.4 mm (3.5 in) |
| 1959 | 59.9 mm (2.4 in) |
| 1960 | 87.9 mm (3.5 in) |
| 1961 | 50.8 mm (2.0 in) |
| 1962 | 279.0 mm (11.0 in) |
| 1963 | 63.6 mm (2.5 in) |
| 1964 | 64.9 mm (2.6 in) |
| 1965 | 145.6 mm (5.7 in) |
| 1966 | 140.0 mm (5.5 in) |
| 1967 | 172.2 mm (6.8 in) |
| 1968 | 112.1 mm (4.4 in) |
| 1969 | 205.2 mm (8.1 in) |
| 1970 | 155.9 mm (6.1 in) |
| 1971 | 147.4 mm (5.8 in) |
| 1972 | 78.8 mm (3.1 in) |
| 1973 | 124.2 mm (4.9 in) |
| 1974 | 229.2 mm (9.0 in) |
| 1975 | 72.4 mm (2.9 in) |
| 1976 | 65.4 mm (2.6 in) |
| 1977 | 97.8 mm (3.9 in) |
| 1978 | 162.0 mm (6.4 in) |
| 1979 | 80.7 mm (3.2 in) |
| 1980 | 376.8 mm (14.8 in) |
| 1981 | 88.6 mm (3.5 in) |
| 1982 | 104.8 mm (4.1 in) |
| 1983 | 209.1 mm (8.2 in) |
| 1984 | 51.1 mm (2.0 in) |
| 1985 | 95.3 mm (3.8 in) |
| 1986 | 166.9 mm (6.6 in) |
| 1987 | 69.4 mm (2.7 in) |
| 1988 | 66.8 mm (2.6 in) |
| 1989 | 29.5 mm (1.2 in) |
| 1990 | 137.4 mm (5.4 in) |
| 1991 | 135.6 mm (5.3 in) |
| 1992 | 152.4 mm (6.0 in) |
| 1993 | 150.1 mm (5.9 in) |
| 1994 | 82.4 mm (3.2 in) |
| 1995 | 238.4 mm (9.4 in) |
| 1996 | 127.5 mm (5.0 in) |
| 1997 | 87.9 mm (3.5 in) |
| 1998 | 199.4 mm (7.9 in) |
| 1999 | 41.6 mm (1.6 in) |
| 2000 | 101.2 mm (4.0 in) |
| 2001 | 171.1 mm (6.7 in) |
| 2002 | 101.6 mm (4.0 in) |
| 2003 | 123.2 mm (4.9 in) |
| 2004 | 173.6 mm (6.8 in) |
| 2005 | 255.1 mm (10.0 in) |
| 2006 | 105.5 mm (4.2 in) |
| 2007 | 37.1 mm (1.5 in) |
| 2008 | 128.0 mm (5.0 in) |
| 2009 | 79.0 mm (3.1 in) |
| 2010 | 228.7 mm (9.0 in) |
| 2011 | 120.0 mm (4.7 in) |
| 2012 | 51.0 mm (2.0 in) |
| 2013 | 35.3 mm (1.4 in) |
| 2014 | 113.5 mm (4.5 in) |
| 2015 | 66.5 mm (2.6 in) |
| 2016 | 72.2 mm (2.8 in) |
| 2017 | 142.6 mm (5.6 in) |
| 2018 | 66.1 mm (2.6 in) |
| 2019 | 124.6 mm (4.9 in) |
| 2020 | 72.6 mm (2.9 in) |
| 2021 | 148.1 mm (5.8 in) |
| 2022 | 127.8 mm (5.0 in) |
| 2023 | 176.2 mm (6.9 in) |
| 2024 | 332.0 mm (13.1 in) |
| 2025 | 100.6 mm (4.0 in) |
| 2026 | 89.4 mm (3.5 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1933 | 15 days |
| 1934 | 31 days |
| 1935 | 19 days |
| 1936 | 62 days |
| 1937 | 39 days |
| 1938 | 92 days |
| 1939 | 40 days |
| 1940 | 35 days |
| 1941 | 163 days |
| 1942 | 102 days |
| 1943 | 116 days |
| 1944 | 181 days |
| 1945 | 193 days |
| 1946 | 143 days |
| 1947 | 175 days |
| 1948 | 137 days |
| 1949 | 173 days |
| 1950 | 160 days |
| 1951 | 108 days |
| 1952 | 195 days |
| 1953 | 159 days |
| 1954 | 196 days |
| 1955 | 190 days |
| 1956 | 147 days |
| 1957 | 122 days |
| 1958 | 217 days |
| 1959 | 137 days |
| 1960 | 96 days |
| 1961 | 73 days |
| 1962 | 204 days |
| 1963 | 57 days |
| 1964 | 140 days |
| 1965 | 70 days |
| 1966 | 131 days |
| 1967 | 114 days |
| 1968 | 116 days |
| 1969 | 117 days |
| 1970 | 219 days |
| 1971 | 141 days |
| 1972 | 73 days |
| 1973 | 199 days |
| 1974 | 187 days |
| 1975 | 153 days |
| 1976 | 87 days |
| 1977 | 68 days |
| 1978 | 100 days |
| 1979 | 184 days |
| 1980 | 196 days |
| 1981 | 164 days |
| 1982 | 108 days |
| 1983 | 105 days |
| 1984 | 144 days |
| 1985 | 118 days |
| 1986 | 169 days |
| 1987 | 96 days |
| 1988 | 122 days |
| 1989 | 177 days |
| 1990 | 175 days |
| 1991 | 109 days |
| 1992 | 101 days |
| 1993 | 127 days |
| 1994 | 139 days |
| 1995 | 179 days |
| 1996 | 166 days |
| 1997 | 219 days |
| 1998 | 79 days |
| 1999 | 157 days |
| 2000 | 132 days |
| 2001 | 191 days |
| 2002 | 171 days |
| 2003 | 113 days |
| 2004 | 197 days |
| 2005 | 133 days |
| 2006 | 144 days |
| 2007 | 151 days |
| 2008 | 163 days |
| 2009 | 129 days |
| 2010 | 129 days |
| 2011 | 104 days |
| 2012 | 203 days |
| 2013 | 154 days |
| 2014 | 212 days |
| 2015 | 89 days |
| 2016 | 162 days |
| 2017 | 116 days |
| 2018 | 86 days |
| 2019 | 128 days |
| 2020 | 223 days |
| 2021 | 132 days |
| 2022 | 140 days |
| 2023 | 107 days |
| 2024 | 202 days |
| 2025 | 144 days |
| 2026 | 146 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
82 years, 1942 to 2025A day with at least 64.3 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 197.9 mm (7.8 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 64.3 mm (2.5 in) | |
| 5 years | 96.7 mm (3.8 in) | |
| 10 years | 119.4 mm (4.7 in) | |
| 25 years | 149.7 mm (5.9 in) | |
| 50 years | 173.4 mm (6.8 in) | |
| 100 years | 197.9 mm (7.8 in) | Longer than the 82 years of record |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 82 years of values from 1942 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: 264.2 mm (10.4 in) in 2024; 146.1 mm (5.8 in) in 1956; 142.2 mm (5.6 in) in 1993.
Station Changes
3 suspected3 changes were suspected in the annual mean temperature of U C L A, at 1964, 1972 and 1993. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1964 ran 0.4 C (0.6 F) higher than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1972 ran 0.9 C (1.6 F) lower than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1993 ran 0.3 C (0.5 F) higher than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1964 | +0.4 | +0.6 | possible | 5 |
| 1972 | -0.9 | -1.6 | likely | 5 |
| 1993 | +0.3 | +0.5 | possible | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, U C L A had a mean temperature of 18.4 C (65.0 F) and 404.4 mm (15.9 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are San Diego Intl AP (United States, 189 km away), El Rosario (Mexico, 515 km away) and La Mesa (United States, 196 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| San Diego Intl AP | United States | 189 km (117 mi) | 17.9 C (64.2 F) | 252.0 mm (9.9 in) | 1.09 |
| El Rosario | Mexico | 515 km (320 mi) | 18.0 C (64.3 F) | 206.7 mm (8.1 in) | 1.11 |
| La Mesa | United States | 196 km (122 mi) | 17.8 C (64.1 F) | 320.4 mm (12.6 in) | 1.31 |
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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-13).