Irvine, CA
Climate overview — based on NOAA 1991-2020 normals from TUSTIN IRVINE RCH, CA US.
Year-round temperatures (°F)
Climate summary
Irvine has an annual average temperature of 64.9°F with about 14.1 inches of precipitation per year. The warmest month is August (average high 87.3°F), and the coldest is December (average low 42.8°F). February is typically the wettest month (3.39 in) and August the driest (0.00 in).
Best time to visit Irvine
Full guide →Climate change signal
All-time records →0 of 366 (0%) of Irvine's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1900s | 0 | |
| 1910s | 17 | |
| 1920s | 40 | |
| 1930s | 54 | |
| 1940s | 22 | |
| 1950s | 49 | |
| 1960s | 36 | |
| 1970s | 37 | |
| 1980s | 46 | |
| 1990s | 59 | |
| 2000s | 6 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 67.8°F | 43.3°F | 55.6°F | 3.09 in | — | 6 |
| February | 69.1°F | 44.6°F | 56.9°F | 3.39 in | — | 7 |
| March | 71.7°F | 47.8°F | 59.8°F | 2.11 in | — | 5 |
| April | 74.2°F | 49.6°F | 61.9°F | 0.80 in | — | 3 |
| May | 76.6°F | 54.6°F | 65.6°F | 0.32 in | — | 2 |
| June | 79.6°F | 58.2°F | 68.9°F | 0.09 in | — | 0 |
| July | 85.1°F | 61.4°F | 73.3°F | 0.01 in | — | 0 |
| August | 87.3°F | 63.1°F | 75.2°F | 0.00 in | — | 0 |
| September | 86.8°F | 61.1°F | 73.9°F | 0.18 in | — | 0 |
| October | 83.6°F | 54.8°F | 69.2°F | 0.67 in | — | 2 |
| November | 75.9°F | 47.3°F | 61.6°F | 1.21 in | — | 3 |
| December | 69.9°F | 42.8°F | 56.3°F | 2.25 in | — | 5 |
Climate twins of Irvine
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).