United States of America
Grand Junction sees feels-like daytime highs peak around 36.1°C in July and nighttime lows bottom out near -6.2°C in January. September is the wettest month (~29 mm), while January is the driest (~11 mm). For sunshine, September leads with about 76% clear skies.
Based on mild feels-like temperatures and low rain chances, the most comfortable months are September, May, and June — expect around 14.8–27.3°C with roughly 19% chance of rain on a given day in September.
| Month | Low / High °C | Rain % | Rainfall | Clear skies | Wind |
|---|---|---|---|---|---|
| January | -6.2° / 1.9° | 7% | 11 mm | 57% | 10.2 kph |
| February | -2.3° / 6.3° | 10% | 14 mm | 52% | 11.1 kph |
| March | 2.7° / 13.7° | 14% | 19 mm | 53% | 12.5 kph |
| April | 7.2° / 19.5° | 15% | 21 mm | 56% | 13.2 kph |
| May☀ | 12.6° / 25.2° | 15% | 22 mm | 61% | 13.1 kph |
| June☀ | 18.2° / 32.4° | 10% | 14 mm | 74% | 12.6 kph |
| July | 21.7° / 36.1° | 17% | 20 mm | 72% | 10.7 kph |
| August | 20.3° / 33.5° | 19% | 23 mm | 72% | 10.1 kph |
| September☀ | 14.8° / 27.3° | 19% | 29 mm | 76% | 10.9 kph |
| October | 7.4° / 19.5° | 17% | 29 mm | 70% | 10.9 kph |
| November | 0.1° / 9.5° | 12% | 20 mm | 61% | 10.4 kph |
| December | -5.4° / 2.2° | 7% | 13 mm | 57% | 10.1 kph |
Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).
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