Rainy days · Maryland
How often does it rain in Baltimore?
Baltimore rain rolls in off the harbor smelling faintly of crab seasoning and regret.
Baltimore gets measurable rain or snow on about 121 days a year, adding up to about 45 inches.
November usually brings Baltimore about 9 wet days and 3.1 inches. The wettest month is usually May, with about 12 wet days, and the driest is November, with about 9 wet days. That makes Baltimore number 49 of the 129 US cities we track, rainiest first.
Last updated
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Live 48-hour check from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
Rainy days, month by month
| Month | Wet days | Inches |
|---|---|---|
| January | 10 | 3.1 |
| February | 9 | 2.9 |
| March | 11 | 4.0 |
| April | 11 | 3.4 |
| May | 12 | 3.9 |
| June | 11 | 4.0 |
| July | 10 | 4.5 |
| August | 10 | 4.1 |
| September | 9 | 4.4 |
| October | 9 | 3.9 |
| November | 9 | 3.1 |
| December | 10 | 3.7 |
Cities with about as many rainy days
- Orlando, Florida: about 121 wet days a year
- Philadelphia, Pennsylvania: about 121 wet days a year
- Rockford, Illinois: about 121 wet days a year
Source: NOAA daily precipitation records for the Baltimore 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.