Cloudy skies · Maryland
How cloudy is Baltimore?
In a typical year, the sky over Baltimore is mostly cloudy or overcast about 51% of the time, and clear or nearly clear about 31%.
January is the cloudiest month, mostly cloudy about 55% of the time, and October the least cloudy, at about 44%. Across winter, December to February, it’s mostly cloudy about 55% of the time. That makes it the 24th cloudiest sky of the 116 US cities we track.
Last updated
The forecast for the next 48 hours has the sky mostly cloudy about 38% of the time.
Baltimore is mostly cloudy about 51% of the time and clear or nearly clear about 31%, so the harbor gets a bit of everything and commits to none of it.
Live 48-hour forecast from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
The sky at a glance
| Mostly cloudy or overcast, all year | 51% |
|---|---|
| Clear or nearly clear, all year | 31% |
| Mostly cloudy, December to February | 55% |
| Cloudiest month | January, 55% |
| Least cloudy month | October, 44% |
Shares of hours across a typical year. Mostly cloudy means at least five eighths of the sky covered; clear or nearly clear means two eighths or less.
Cities with about the same sky
- Boston, Massachusetts: mostly cloudy about 51% of the time
- Minneapolis, Minnesota: mostly cloudy about 51% of the time
- Olympia, Washington: mostly cloudy about 51% of the time
More about the weather here
Source: NOAA U.S. Climate Normals, hourly, 1991 to 2020, station USW00093721. Airport sensors see cloud up to about 12,000 feet, so thin high cloud isn’t counted.