Rainy days · Arizona
How often does it rain in Phoenix?
Phoenix sees rain on so few days that each one gets treated like a celebrity sighting.
Phoenix gets measurable rain or snow on about 33 days a year, adding up to about 7 inches.
November usually brings Phoenix about 2 wet days and 0.6 inches. The wettest month is usually August, with about 5 wet days, and the driest is June, with about 1 wet day. That makes Phoenix number 128 of the 129 US cities we track, rainiest first.
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Rainy days, month by month
| Month | Wet days | Inches |
|---|---|---|
| January | 4 | 0.9 |
| February | 4 | 0.9 |
| March | 3 | 0.8 |
| April | 2 | 0.2 |
| May | 1 | 0.1 |
| June | 1 | trace |
| July | 4 | 0.9 |
| August | 5 | 0.9 |
| September | 3 | 0.6 |
| October | 2 | 0.6 |
| November | 2 | 0.6 |
| December | 4 | 0.7 |
Cities with about as many rainy days
- Los Angeles, California: about 35 wet days a year
- San Diego, California: about 40 wet days a year
- Las Vegas, Nevada: about 26 wet days a year
Source: NOAA daily precipitation records for the Phoenix 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.