Rainy days · Colorado
How often does it rain in Grand Junction?
Grand Junction is desert enough that a wet day gets its own town meeting.
Grand Junction gets measurable rain or snow on about 71 days a year, adding up to about 9 inches.
November usually brings Grand Junction about 5 wet days and 0.6 inches. The wettest month is usually April, with about 7 wet days, and the driest is June, with about 3 wet days. That makes Grand Junction number 115 of the 129 US cities we track, rainiest first.
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Rainy days, month by month
| Month | Wet days | Inches |
|---|---|---|
| January | 6 | 0.6 |
| February | 6 | 0.5 |
| March | 7 | 0.8 |
| April | 7 | 1.0 |
| May | 6 | 0.8 |
| June | 3 | 0.4 |
| July | 5 | 0.6 |
| August | 7 | 0.9 |
| September | 7 | 1.2 |
| October | 6 | 1.0 |
| November | 5 | 0.6 |
| December | 6 | 0.6 |
Cities with about as many rainy days
- Yakima, Washington: about 72 wet days a year
- Amarillo, Texas: about 69 wet days a year
- San Francisco, California: about 65 wet days a year
Source: NOAA daily precipitation records for the Grand Junction area, 1991 to 2020 (at least 30 complete years behind every month), via the Applied Climate Information System. A wet day here means at least a hundredth of an inch of rain or melted snow.