Maryland General Climate
![]()
This page is for students who need information about Maryland Climate, including normal temperatures, precipitation, etc. for the year.
Maryland has five unique geological regions (for a map click here), and for each region a station has been chosen for normals. This is because when geology changes so does the climate. All normals are over the time period 1971-2000.
1. the Appalachian Plateaus Region............................................................................Savage River Dam (Garrett County)
Coordinates: 39°31'N / 79°08'W Elevation: 455.7m (1495') above sea level
|
|
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
|
Daily Max Temp (F) |
33.4 |
37.0 |
46.6 |
58.2 |
68.1 |
75.9 |
79.5 |
78.3 |
71.3 |
60.0 |
48.4 |
37.8 |
57.9 |
|
Daily Min Temp (F) |
18.9 |
20.2 |
27.6 |
36.6 |
46.4 |
55.0 |
59.8 |
58.3 |
51.7 |
40.0 |
32.3 |
24.1 |
39.2 |
|
Daily Mean Temp (F) |
26.2 |
28.6 |
37.1 |
47.4 |
57.3 |
65.5 |
69.7 |
68.3 |
61.5 |
50.0 |
40.4 |
31.0 |
48.6 |
|
Monthly Mean Precipitation (in) |
2.89 |
2.47 |
3.28 |
3.38 |
4.24 |
3.67 |
4.19 |
3.37 |
3.48 |
2.81 |
3.00 |
2.74 |
39.52 |
|
Monthly Mean Snowfall (in) |
11.2 |
8.7 |
5.1 |
0.8 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
Trace |
1.6 |
4.8 |
32.2 |
|
Monthly Snow Depth (in) |
4.0 |
4.0 |
2.0 |
Trace |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
Trace |
Trace |
1.0 |
|
2. the Ridge and Valley Region........................................................................................Cumberland (Allegany County)
Coordinates: 39°39'N / 78°45'W Elevation: 222.5m (730') above sea level
|
|
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
|
Daily Max Temp (F) |
40.0 |
45.0 |
55.1 |
66.8 |
75.9 |
83.5 |
87.3 |
85.7 |
78.7 |
67.4 |
54.8 |
43.8 |
65.3 |
|
Daily Min Temp (F) |
20.5 |
22.7 |
30.2 |
39.0 |
48.5 |
56.9 |
61.6 |
60.1 |
52.9 |
40.4 |
32.3 |
24.6 |
40.8 |
|
Daily Mean Temp (F) |
30.3 |
33.9 |
42.7 |
52.9 |
62.2 |
70.2 |
74.5 |
72.9 |
65.8 |
53.9 |
43.6 |
34.2 |
53.1 |
|
Monthly Mean Precipitation (in) |
2.89 |
2.43 |
3.30 |
3.16 |
3.97 |
3.12 |
3.42 |
3.53 |
3.18 |
2.69 |
2.91 |
2.61 |
37.21 |
|
Monthly Mean Snowfall (in) |
11.9 |
7.7 |
6.5 |
0.3 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
1.3 |
4.4 |
31.5 |
3. the Blue Ridge Region...............................................................................Catoctin Mountain Park (Frederick County)
Coordinates: 39°39'N / 77°29'W Elevation: 490.7m (1610') above sea level
|
|
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
|
Daily Max Temp (F) |
36.6 |
40.5 |
50.4 |
63.0 |
72.2 |
78.8 |
82.1 |
80.3 |
73.7 |
63.8 |
51.9 |
41.2 |
61.2 |
|
Daily Min Temp (F) |
21.4 |
23.9 |
31.4 |
40.7 |
51.0 |
59.5 |
64.0 |
62.7 |
56.4 |
45.2 |
35.7 |
26.3 |
43.2 |
|
Daily Mean Temp (F) |
29.0 |
32.2 |
40.9 |
51.9 |
61.6 |
69.2 |
73.1 |
71.5 |
65.1 |
54.5 |
43.8 |
33.8 |
52.2 |
|
Monthly Mean Precipitation (in) |
3.95 |
3.33 |
4.32 |
3.96 |
5.14 |
4.61 |
3.82 |
3.92 |
4.91 |
3.89 |
3.87 |
3.44 |
49.16 |
|
Monthly Mean Snowfall (in) |
12.8 |
8.7 |
4.6 |
1.1 |
Trace |
0.0 |
0.0 |
0.0 |
0.0 |
0.2 |
2.0 |
4.1 |
33.5 |
|
Monthly Snow Depth (in) |
3.0 |
4.0 |
1.0 |
Trace |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
Trace |
Trace |
1.0 |
|
4. the Piedmont Plateau Region........................................Baltimore/Washington International Airport (Anne Arundel County)
Coordinates: 39°10'N / 76°41'W Elevation: 47.5m (156') above sea level
|
|
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
|
Daily Max Temp (F) |
41.2 |
44.8 |
53.9 |
64.5 |
73.9 |
82.7 |
87.2 |
85.1 |
78.2 |
67.0 |
56.3 |
46.0 |
65.1 |
|
Daily Min Temp (F) |
23.5 |
26.1 |
33.6 |
42.0 |
51.8 |
60.8 |
65.8 |
63.9 |
56.6 |
43.7 |
34.7 |
27.3 |
44.2 |
|
Daily Mean Temp (F) |
32.3 |
35.5 |
43.7 |
53.2 |
62.9 |
71.8 |
76.5 |
74.5 |
67.4 |
55.4 |
45.5 |
36.7 |
54.6 |
|
Monthly Mean Precipitation (in) |
3.47 |
3.02 |
3.93 |
3.00 |
3.89 |
3.43 |
3.85 |
3.74 |
3.98 |
3.16 |
3.12 |
3.35 |
41.94 |
|
Monthly Mean Snowfall (in) |
7.0 |
6.4 |
2.4 |
0.1 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.6 |
1.7 |
18.2 |
|
Monthly Snow Depth (in) |
1.0 |
1.0 |
Trace |
0.0 |
Trace |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
Trace |
Trace |
|
5. the Atlantic Coastal Plain Regions.....................................................................................Royal Oak (Talbot County)
Coordinates: 38°43'N / 76°11'W Elevation: 3.0m (10') above sea level
|
|
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
|
Daily Max Temp (F) |
43.7 |
46.8 |
55.8 |
66.2 |
75.6 |
83.8 |
88.0 |
86.4 |
80.3 |
69.5 |
58.8 |
48.6 |
67.0 |
|
Daily Min Temp (F) |
28.4 |
30.1 |
37.5 |
45.9 |
55.8 |
64.6 |
69.2 |
67.4 |
61.1 |
50.1 |
41.4 |
32.9 |
48.7 |
|
Daily Mean Temp (F) |
36.1 |
38.5 |
46.7 |
56.1 |
65.7 |
74.2 |
78.6 |
76.9 |
70.7 |
59.8 |
50.1 |
40.8 |
57.9 |
|
Monthly Mean Precipitation (in) |
4.11 |
3.35 |
4.44 |
3.50 |
4.13 |
3.47 |
4.22 |
4.10 |
3.99 |
3.46 |
3.43 |
3.67 |
45.87 |
|
Monthly Mean Snowfall (in) |
5.1 |
4.9 |
1.4 |
0.1 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.4 |
1.4 |
13.3 |
|
Monthly Snow Depth (in) |
1.0 |
1.0 |
Trace |
Trace |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
Trace |
Trace |
|