Idaho City, ID
Climate overview — based on NOAA 1991-2020 normals from IDAHO CITY, ID US.
Year-round temperatures (°F)
Climate summary
Idaho City has an annual average temperature of 43.9°F with about 21.1 inches of precipitation per year. The warmest month is July (average high 87.1°F), and the coldest is January (average low 13.5°F). December is typically the wettest month (3.53 in) and July the driest (0.32 in).
Best time to visit Idaho City
Full guide →Climate change signal
All-time records →0 of 366 (0%) of Idaho City'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 | 11 | |
| 1900s | 28 | |
| 1910s | 16 | |
| 1920s | 95 | |
| 1930s | 97 | |
| 1940s | 32 | |
| 1950s | 17 | |
| 1960s | 11 | |
| 1970s | 10 | |
| 1980s | 23 | |
| 1990s | 15 | |
| 2000s | 10 | |
| 2010s | 1 |
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 | 35.3°F | 13.5°F | 24.4°F | 3.16 in | — | 11 |
| February | 40.5°F | 15.9°F | 28.2°F | 1.94 in | — | 8 |
| March | 47.8°F | 22.0°F | 34.9°F | 2.26 in | — | 10 |
| April | 56.0°F | 27.5°F | 41.7°F | 1.59 in | — | 10 |
| May | 66.4°F | 34.5°F | 50.5°F | 2.11 in | — | 8 |
| June | 75.3°F | 40.3°F | 57.8°F | 1.09 in | — | 7 |
| July | 87.1°F | 45.6°F | 66.3°F | 0.32 in | — | 3 |
| August | 86.3°F | 43.6°F | 65.0°F | 0.44 in | — | 2 |
| September | 76.5°F | 35.6°F | 56.1°F | 0.77 in | — | 3 |
| October | 61.5°F | 27.5°F | 44.5°F | 1.50 in | — | 6 |
| November | 44.2°F | 20.7°F | 32.5°F | 2.41 in | — | 9 |
| December | 34.6°F | 13.9°F | 24.3°F | 3.53 in | — | 12 |
Climate twins of Idaho City
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).