Maryland climate by month
January highs across Maryland range from 39°F in Frederick to 45°F in Ocean City; July highs from 84°F in Ocean City to 89°F in Baltimore. The most common best months across these cities are April, May, October.
Maryland weather month by month
Average of the 3 Maryland cities on this site, computed from NOAA's unrounded values (so it can differ by a degree from averaging the rounded city figures); individual cities differ, sometimes a lot.
| Month | High | Low | Wet days | Snow |
|---|---|---|---|---|
| January | 42°F | 26°F | 10 | 6.2 in |
| February | 45°F | 27°F | 10 | 7.4 in |
| March | 53°F | 34°F | 11 | 2.9 in |
| April | 64°F | 44°F | 11 | 0.1 in |
| May | 73°F | 53°F | 12 | 0.0 in |
| June | 81°F | 62°F | 11 | 0.0 in |
| July | 86°F | 67°F | 10 | 0.0 in |
| August | 84°F | 66°F | 10 | 0.0 in |
| September | 78°F | 59°F | 9 | 0.0 in |
| October | 67°F | 47°F | 9 | 0.0 in |
| November | 56°F | 37°F | 9 | 0.3 in |
| December | 47°F | 30°F | 10 | 3.4 in |
Regional differences
- Warmest winterOcean City: January high 45°F
- Coolest summerOcean City: July high 84°F
- Most wet daysOcean City: 130 a year
- Fewest wet daysFrederick: 119 a year
- Most snowFrederick: 31.4 in a year
Warmest and coolest Maryland city each month
| Month | Warmest | Coolest | Best month for |
|---|---|---|---|
| January | Ocean City 45°F | Frederick 39°F | – |
| February | Ocean City 47°F | Frederick 43°F | – |
| March | Baltimore 55°F | Frederick 52°F | – |
| April | Baltimore 67°F | Ocean City 62°F | 1 city |
| May | Baltimore 76°F | Ocean City 70°F | 3 cities |
| June | Baltimore 84°F | Ocean City 79°F | – |
| July | Baltimore 89°F | Ocean City 84°F | – |
| August | Baltimore 87°F | Ocean City 83°F | – |
| September | Baltimore 80°F | Frederick 76°F | – |
| October | Baltimore 68°F | Frederick 65°F | 1 city |
| November | Ocean City 58°F | Frederick 53°F | – |
| December | Ocean City 50°F | Frederick 44°F | – |
By normal daily high. "Best month for": how many of the 3 cities have it among their best months by our comfort score.
Frost and humidity across Maryland
- Earliest typical last frostBaltimore: Mar 24
- Latest typical last frostOcean City: Apr 7
- Most muggy daysOcean City: 85 a year
- Fewest muggy daysFrederick: 46 a year
All Maryland cities
| City | Jan high | Jul high | Wet days/yr | Snow/yr | Best months |
|---|---|---|---|---|---|
| Baltimore | 43°F | 89°F | 121 | 19.3 in | Apr, May |
| Frederick | 39°F | 84°F | 119 | 31.4 in | May |
| Ocean City | 45°F | 84°F | 130 | 10.2 in | May, Oct |
Also covered: Columbia (see Baltimore), Gaithersburg (see Frederick). These cities use the same weather stations as the city named.