All-time weather records — Riverside, CA
Climate change signal in Riverside
of Riverside's all-time daily heat records were set in the last decade (9 of 366 records since 2015).
of all-time daily cold records were set in the last decade (0 of 366 records since 2015).
If records were spread evenly across the station's history, you'd expect roughly 5% per decade. Decade-by-decade, here's where each record-breaking day was set:
| Decade | Heat records set | # | Cold records set | # |
|---|---|---|---|---|
| 1890s | 5 | 27 | ||
| 1900s | 20 | 64 | ||
| 1910s | 63 | 95 | ||
| 1920s | 42 | 36 | ||
| 1930s | 25 | 32 | ||
| 1940s | 30 | 51 | ||
| 1950s | 24 | 48 | ||
| 1960s | 14 | 3 | ||
| 1970s | 23 | 3 | ||
| 1980s | 35 | 3 | ||
| 1990s | 31 | 2 | ||
| 2000s | 31 | · | ||
| 2010s | 23 | 2 | ||
| 2020s | · | · |
Records are the all-time daily extremes that are still standing — each daily record can only be held by one year. The station's earliest hot record was set in 1894, the latest in 2016. Period of observation: 1893-2026.
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | 93.9°F — Jan 2, 2012 | 1.0°F — Jan 20, 1911 | 2.70 in — Jan 26, 1956 |
| February | 99.0°F — Feb 4, 1992 | 24.1°F — Feb 15, 1942 | 3.22 in — Feb 7, 1937 |
| March | 102.0°F — Mar 10, 1916 | 25.0°F — Mar 2, 1903 | 4.42 in — Mar 4, 1938 |
| April | 105.1°F — Apr 6, 1989 | 28.9°F — Apr 4, 1970 | 3.07 in — Apr 5, 1926 |
| May | 109.9°F — May 29, 1984 | 28.0°F — May 4, 1982 | 1.39 in — May 1, 1930 |
| June | 118.0°F — Jun 16, 1917 | 35.1°F — Jun 11, 1894 | 0.83 in — Jun 5, 1993 |
| July | 118.0°F — Jul 17, 1925 | 41.0°F — Jul 7, 1948 | 1.26 in — Jul 25, 1956 |
| August | 113.0°F — Aug 5, 1997 | 39.9°F — Aug 27, 1902 | 2.05 in — Aug 17, 1977 |
| September | 115.0°F — Sep 6, 1955 | 35.1°F — Sep 14, 1902 | 1.72 in — Sep 30, 1921 |
| October | 109.0°F — Oct 1, 1980 | 30.0°F — Oct 30, 1971 | 2.50 in — Oct 20, 2004 |
| November | 99.0°F — Nov 2, 1924 | -38.9°F — Nov 4, 1940 | 2.11 in — Nov 11, 1954 |
| December | 93.9°F — Dec 3, 1958 | 21.0°F — Dec 12, 1949 | 3.28 in — Dec 11, 1943 |
Click a month to see every daily record for that month in Riverside.