Rainy days · Washington
How often does it rain in Olympia?
Olympia makes Seattle look like a sunny weekend getaway, and Olympia is fine with that.
Olympia gets measurable rain or snow on about 163 days a year, adding up to about 50 inches.
November usually brings Olympia about 20 wet days and 8.2 inches. The wettest month is usually January, with about 20 wet days, and the driest is July, with about 4 wet days. That makes Olympia number 8 of the 129 US cities we track, rainiest first.
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Rainy days, month by month
| Month | Wet days | Inches |
|---|---|---|
| January | 20 | 7.8 |
| February | 16 | 5.1 |
| March | 19 | 5.7 |
| April | 16 | 3.7 |
| May | 11 | 2.3 |
| June | 9 | 1.4 |
| July | 4 | 0.5 |
| August | 5 | 1.0 |
| September | 8 | 2.0 |
| October | 15 | 5.1 |
| November | 20 | 8.2 |
| December | 20 | 7.8 |
Cities with about as many rainy days
- Binghamton, New York: about 164 wet days a year
- Buffalo, New York: about 166 wet days a year
- Akron, Ohio: about 160 wet days a year
Source: NOAA daily precipitation records for the Olympia 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.