Grand Junction, CO
Climate overview — based on NOAA 1991-2020 normals from GRAND JUNCTION WFO, CO US.
Year-round temperatures (°F)
Climate summary
Grand Junction has an annual average temperature of 54.6°F with about 11.4 inches of precipitation per year. The warmest month is July (average high 94.5°F), and the coldest is January (average low 19.4°F). September is typically the wettest month (1.47 in) and June the driest (0.60 in).
Best time to visit Grand Junction
Full guide →Climate change signal
All-time records →316 of 366 (86.3%) of Grand Junction'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.
| 2010s | 169 | |
| 2020s | 197 |
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 | 39.0°F | 19.4°F | 29.2°F | 0.77 in | — | — |
| February | 46.7°F | 26.0°F | 36.4°F | 0.65 in | — | — |
| March | 58.6°F | 34.5°F | 46.6°F | 0.87 in | — | — |
| April | 66.9°F | 41.0°F | 54.0°F | 1.06 in | — | — |
| May | 76.7°F | 50.0°F | 63.4°F | 1.27 in | — | — |
| June | 89.2°F | 59.1°F | 74.1°F | 0.60 in | — | — |
| July | 94.5°F | 66.0°F | 80.3°F | 0.89 in | — | — |
| August | 90.8°F | 63.9°F | 77.4°F | 1.03 in | — | — |
| September | 82.0°F | 55.0°F | 68.5°F | 1.47 in | — | — |
| October | 67.1°F | 41.8°F | 54.5°F | 1.27 in | — | — |
| November | 52.1°F | 30.2°F | 41.2°F | 0.81 in | — | — |
| December | 39.1°F | 21.0°F | 30.1°F | 0.68 in | — | — |
Climate twins of Grand Junction
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).