Atwater, CA
Climate overview — based on NOAA 1991-2020 normals from MERCED, CA US.
Year-round temperatures (°F)
Climate summary
Atwater has an annual average temperature of 61.6°F with about 12.5 inches of precipitation per year. The warmest month is July (average high 94.8°F), and the coldest is December (average low 36.2°F). January is typically the wettest month (2.67 in) and July the driest (0.01 in).
Best time to visit Atwater
Full guide →Climate change signal
All-time records →20 of 366 (5.5%) of Atwater'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.
| 1890s | 3 | |
| 1900s | 87 | |
| 1910s | 19 | |
| 1920s | 39 | |
| 1930s | 36 | |
| 1940s | 13 | |
| 1950s | 28 | |
| 1960s | 26 | |
| 1970s | 18 | |
| 1980s | 26 | |
| 1990s | 16 | |
| 2000s | 31 | |
| 2010s | 9 | |
| 2020s | 15 |
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 | 54.1°F | 36.9°F | 45.5°F | 2.67 in | — | 10 |
| February | 60.6°F | 39.2°F | 49.9°F | 2.24 in | — | 9 |
| March | 66.5°F | 42.4°F | 54.4°F | 1.89 in | — | 8 |
| April | 73.0°F | 45.5°F | 59.2°F | 1.01 in | — | 4 |
| May | 81.9°F | 51.7°F | 66.8°F | 0.59 in | — | 3 |
| June | 89.3°F | 57.2°F | 73.2°F | 0.13 in | — | 1 |
| July | 94.8°F | 61.8°F | 78.3°F | 0.01 in | — | 0 |
| August | 93.8°F | 60.1°F | 77.0°F | 0.01 in | — | 0 |
| September | 89.3°F | 56.1°F | 72.7°F | 0.07 in | — | 1 |
| October | 78.6°F | 48.7°F | 63.6°F | 0.73 in | — | 3 |
| November | 64.5°F | 40.8°F | 52.6°F | 1.18 in | — | 5 |
| December | 54.7°F | 36.2°F | 45.5°F | 1.98 in | — | 9 |
Climate twins of Atwater
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).