Grand Junction Climate: Weather by Month and Best Time to Visit
Best months for Grand Junction: June, May.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 1°C | -10°C | 38 mm | 7 | – | – | 4.1 |
| February | 4°C | -7°C | 44 mm | 9 | – | – | 4.5 |
| March | 11°C | -3°C | 52 mm | 9 | – | – | 5.7 |
| April | 16°C | 1°C | 51 mm | 10 | – | – | 6.7 |
| May | 22°C | 7°C | 47 mm | 9 | – | – | 7.9 |
| June | 29°C | 12°C | 26 mm | 5 | – | – | 8.4 |
| July | 31°C | 15°C | 55 mm | 9 | – | – | 7.4 |
| August | 29°C | 14°C | 81 mm | 12 | – | – | 7.4 |
| September | 24°C | 10°C | 68 mm | 9 | – | – | 7.8 |
| October | 17°C | 3°C | 51 mm | 8 | – | – | 7.2 |
| November | 9°C | -3°C | 42 mm | 7 | – | – | 5.6 |
| December | 2°C | -9°C | 37 mm | 7 | – | – | 4.2 |