Isleton, CA
Climate overview — based on NOAA 1991-2020 normals from ANTIOCH PUMPING PLT #3, CA US.
Year-round temperatures (°F)
Climate summary
Isleton has an annual average temperature of 62.5°F with about 12.6 inches of precipitation per year. The warmest month is July (average high 91.4°F), and the coldest is January (average low 40.3°F). January is typically the wettest month (2.68 in) and July the driest (0.00 in).
Best time to visit Isleton
Full guide →Climate change signal
All-time records →52 of 366 (14.2%) of Isleton'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 | 32 | |
| 1960s | 56 | |
| 1970s | 42 | |
| 1980s | 40 | |
| 1990s | 39 | |
| 2000s | 34 | |
| 2010s | 100 | |
| 2020s | 23 |
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 | 55.7°F | 40.3°F | 48.0°F | 2.68 in | — | 11 |
| February | 60.8°F | 43.9°F | 52.3°F | 2.36 in | — | 9 |
| March | 66.5°F | 46.6°F | 56.5°F | 1.95 in | — | 8 |
| April | 72.1°F | 49.5°F | 60.8°F | 0.91 in | — | 4 |
| May | 79.0°F | 54.3°F | 66.6°F | 0.38 in | — | 3 |
| June | 86.3°F | 59.0°F | 72.6°F | 0.11 in | — | 1 |
| July | 91.4°F | 60.6°F | 76.0°F | 0.00 in | — | 0 |
| August | 90.2°F | 60.3°F | 75.2°F | 0.02 in | — | 0 |
| September | 86.7°F | 58.7°F | 72.7°F | 0.06 in | — | 0 |
| October | 77.5°F | 54.2°F | 65.9°F | 0.42 in | — | 1 |
| November | 64.6°F | 46.2°F | 55.4°F | 1.18 in | — | 5 |
| December | 55.8°F | 40.4°F | 48.1°F | 2.53 in | — | 9 |
Climate twins of Isleton
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).