Idaho Falls, ID
Climate overview — based on NOAA 1991-2020 normals from IDAHO FALLS - KIFI, ID US.
Year-round temperatures (°F)
Climate summary
Idaho Falls has an annual average temperature of 46.5°F with about 13.5 inches of precipitation per year. The warmest month is July (average high 86.3°F), and the coldest is January (average low 16.1°F). May is typically the wettest month (1.93 in) and July the driest (0.51 in).
Best time to visit Idaho Falls
Full guide →Climate change signal
All-time records →45 of 366 (12.3%) of Idaho Falls'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 | 29 | |
| 1960s | 63 | |
| 1970s | 31 | |
| 1980s | 50 | |
| 1990s | 67 | |
| 2000s | 61 | |
| 2010s | 36 | |
| 2020s | 29 |
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 | 30.2°F | 16.1°F | 23.2°F | 1.06 in | — | 11 |
| February | 35.7°F | 20.0°F | 27.9°F | 0.95 in | — | 9 |
| March | 48.2°F | 28.5°F | 38.4°F | 1.26 in | — | 9 |
| April | 57.8°F | 34.3°F | 46.0°F | 1.43 in | — | 10 |
| May | 67.2°F | 42.4°F | 54.8°F | 1.93 in | — | 10 |
| June | 76.6°F | 48.7°F | 62.6°F | 1.25 in | — | 6 |
| July | 86.3°F | 55.2°F | 70.8°F | 0.51 in | — | 4 |
| August | 85.5°F | 53.6°F | 69.5°F | 0.65 in | — | 5 |
| September | 74.9°F | 45.3°F | 60.1°F | 1.13 in | — | 5 |
| October | 59.4°F | 34.8°F | 47.1°F | 1.23 in | — | 7 |
| November | 43.0°F | 25.1°F | 34.1°F | 0.95 in | — | 8 |
| December | 30.8°F | 17.2°F | 24.0°F | 1.14 in | — | 11 |
Climate twins of Idaho Falls
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).