Caldwell, ID
Climate overview — based on NOAA 1991-2020 normals from NAMPA SUGAR FACTORY, ID US.
Year-round temperatures (°F)
Climate summary
Caldwell has an annual average temperature of 52°F with about 11 inches of precipitation per year and 9.7 inches of snow. The warmest month is July (average high 93.3°F), and the coldest is December (average low 22.8°F). December is typically the wettest month (1.39 in) and August the driest (0.20 in). Snow typically falls from November through March.
Best time to visit Caldwell
Full guide →Climate change signal
All-time records →14 of 366 (3.8%) of Caldwell'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.
| 1970s | 18 | |
| 1980s | 82 | |
| 1990s | 115 | |
| 2000s | 104 | |
| 2010s | 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 | 39.5°F | 23.0°F | 31.2°F | 1.37 in | 3.4 in | 10 |
| February | 47.2°F | 26.0°F | 36.6°F | 1.04 in | 1.4 in | 7 |
| March | 57.4°F | 31.6°F | 44.5°F | 1.26 in | 0.2 in | 9 |
| April | 64.5°F | 36.1°F | 50.3°F | 1.06 in | — | 9 |
| May | 73.9°F | 44.0°F | 58.9°F | 1.37 in | — | 8 |
| June | 82.8°F | 51.0°F | 66.9°F | 0.73 in | — | 6 |
| July | 93.3°F | 57.3°F | 75.3°F | 0.26 in | — | 2 |
| August | 91.6°F | 55.5°F | 73.6°F | 0.20 in | — | 2 |
| September | 81.0°F | 46.5°F | 63.8°F | 0.36 in | — | 3 |
| October | 66.6°F | 36.5°F | 51.5°F | 0.80 in | — | 6 |
| November | 50.7°F | 28.4°F | 39.5°F | 1.17 in | 0.5 in | 10 |
| December | 40.0°F | 22.8°F | 31.4°F | 1.39 in | 4.2 in | 11 |
Climate twins of Caldwell
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).