Ione, CA
Climate overview — based on NOAA 1991-2020 normals from SUTTER HILL CDF, CA US.
Year-round temperatures (°F)
Climate summary
Ione has an annual average temperature of 61°F with about 32 inches of precipitation per year. The warmest month is July (average high 93.4°F), and the coldest is December (average low 38.8°F). January is typically the wettest month (6.06 in) and July the driest (0.02 in).
Best time to visit Ione
Full guide →Climate change signal
All-time records →127 of 366 (34.7%) of Ione'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.
| 1940s | 0 | |
| 1950s | 0 | |
| 1960s | 0 | |
| 1970s | 3 | |
| 1990s | 21 | |
| 2000s | 141 | |
| 2010s | 135 | |
| 2020s | 66 |
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 | 39.2°F | 47.0°F | 6.06 in | — | — |
| February | 58.0°F | 41.5°F | 49.7°F | 5.66 in | — | — |
| March | 62.0°F | 42.1°F | 52.1°F | 4.90 in | — | — |
| April | 66.7°F | 45.0°F | 55.8°F | 2.78 in | — | — |
| May | 75.0°F | 50.9°F | 63.0°F | 1.69 in | — | — |
| June | 86.0°F | 56.9°F | 71.4°F | 0.38 in | — | — |
| July | 93.4°F | 62.6°F | 78.0°F | 0.02 in | — | — |
| August | 91.9°F | 61.9°F | 76.9°F | 0.04 in | — | — |
| September | 86.7°F | 59.5°F | 73.1°F | 0.26 in | — | — |
| October | 76.5°F | 52.9°F | 64.7°F | 1.71 in | — | — |
| November | 63.3°F | 44.1°F | 53.7°F | 3.12 in | — | — |
| December | 55.0°F | 38.8°F | 46.9°F | 5.40 in | — | — |
Climate twins of Ione
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).