Boulder, UT
Climate overview — based on NOAA 1991-2020 normals from BOULDER, UT US.
Year-round temperatures (°F)
Climate summary
Boulder has an annual average temperature of 50.3°F with about 11.9 inches of precipitation per year and 51.6 inches of snow. The warmest month is July (average high 83.6°F), and the coldest is December (average low 21.1°F). August is typically the wettest month (1.73 in) and June the driest (0.38 in). Snow typically falls from October through May.
Best time to visit Boulder
Full guide →Climate change signal
All-time records →54 of 366 (14.8%) of Boulder'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 | 23 | |
| 1960s | 41 | |
| 1970s | 55 | |
| 1980s | 55 | |
| 1990s | 79 | |
| 2000s | 51 | |
| 2010s | 23 | |
| 2020s | 39 |
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 | 21.3°F | 30.4°F | 1.07 in | 15.7 in | 6 |
| February | 43.6°F | 24.5°F | 34.1°F | 1.05 in | 10.8 in | 6 |
| March | 52.8°F | 30.7°F | 41.7°F | 0.91 in | 6.7 in | 5 |
| April | 59.7°F | 35.8°F | 47.7°F | 0.51 in | 2.3 in | 4 |
| May | 68.1°F | 44.6°F | 56.4°F | 0.72 in | 0.4 in | 5 |
| June | 78.8°F | 54.4°F | 66.6°F | 0.38 in | — | 3 |
| July | 83.6°F | 61.2°F | 72.4°F | 1.11 in | — | 8 |
| August | 81.2°F | 59.6°F | 70.4°F | 1.73 in | — | 10 |
| September | 74.0°F | 52.0°F | 63.0°F | 1.58 in | — | 7 |
| October | 62.4°F | 40.5°F | 51.5°F | 1.44 in | 0.5 in | 5 |
| November | 49.3°F | 29.6°F | 39.5°F | 0.56 in | 3.5 in | 3 |
| December | 39.3°F | 21.1°F | 30.2°F | 0.79 in | 11.7 in | 5 |
Climate twins of Boulder
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).