Clearlake, CA
Climate overview — based on NOAA 1991-2020 normals from CLEARLAKE 4 SE, CA US.
Year-round temperatures (°F)
Climate summary
Clearlake has an annual average temperature of 56.9°F with about 29.9 inches of precipitation per year and 0.4 inches of snow. The warmest month is July (average high 91.4°F), and the coldest is January (average low 32.6°F). January is typically the wettest month (6.19 in) and July the driest (0.01 in). Snow typically falls from January through January.
Best time to visit Clearlake
Full guide →Climate change signal
All-time records →77 of 366 (21%) of Clearlake'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.
| 1950s | 20 | |
| 1960s | 71 | |
| 1970s | 49 | |
| 1980s | 61 | |
| 1990s | 28 | |
| 2000s | 32 | |
| 2010s | 58 | |
| 2020s | 47 |
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 | 54.8°F | 32.6°F | 43.7°F | 6.19 in | 0.2 in | 14 |
| February | 57.7°F | 33.7°F | 45.7°F | 6.15 in | 0.1 in | 13 |
| March | 61.6°F | 35.4°F | 48.5°F | 3.99 in | 0.1 in | 10 |
| April | 66.4°F | 39.3°F | 52.8°F | 1.99 in | — | 8 |
| May | 72.5°F | 45.0°F | 58.8°F | 1.16 in | — | 5 |
| June | 83.2°F | 51.5°F | 67.3°F | 0.23 in | — | 2 |
| July | 91.4°F | 55.9°F | 73.6°F | 0.01 in | — | 0 |
| August | 90.5°F | 54.3°F | 72.4°F | 0.09 in | — | 0 |
| September | 85.4°F | 50.3°F | 67.9°F | 0.17 in | — | 1 |
| October | 75.4°F | 43.2°F | 59.3°F | 0.91 in | — | 4 |
| November | 63.4°F | 35.6°F | 49.5°F | 2.89 in | — | 9 |
| December | 54.8°F | 32.6°F | 43.7°F | 6.08 in | — | 13 |
Climate twins of Clearlake
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).