Natl Arboretum Dc, Maryland
ID: USC00186350 Latitude: 38.9133 Longitude: -76.9700
Elevation: 49.9 feet ( 15.2 meters)
Source: NOAA Climate Normals 1991-2020
Precipitation Total: 45.59 in., 17.95 cm.
Monthly Data Table for Natl Arboretum Dc, Maryland
Monthly Data from NOAA Monthly Normals 2006-2020
Imperial Units
Statistic |
Units |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Maximum Temperature |
°F |
44.8 |
47.8 |
57.0 |
68.1 |
77.6 |
86.4 |
90.4 |
89.0 |
82.9 |
70.9 |
58.1 |
49.8 |
Minimum Temperature |
°F |
27.9 |
29.5 |
36.5 |
46.9 |
57.6 |
66.9 |
71.5 |
69.4 |
62.4 |
50.6 |
39.1 |
33.1 |
Heating Degree Days |
°F |
888.0 |
738.0 |
568.7 |
253.6 |
60.2 |
2.6 |
0.0 |
0.2 |
11.6 |
182.8 |
492.9 |
730.3 |
Cooling Degree Days |
°F |
0.0 |
0.3 |
2.9 |
28.6 |
140.8 |
352.0 |
494.4 |
440.4 |
241.0 |
51.0 |
1.0 |
0.2 |
Precipitation |
I |
2.7 |
2.9 |
3.2 |
4.0 |
4.9 |
5.2 |
4.8 |
4.0 |
4.4 |
4.6 |
3.1 |
3.8 |
Metric Units
Statistic |
Units |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Maximum Temperature |
°C |
7.1 |
8.8 |
13.9 |
20.1 |
25.3 |
30.2 |
32.4 |
31.7 |
28.3 |
21.6 |
14.5 |
9.9 |
Minimum Temperature |
°C |
-2.3 |
-1.4 |
2.5 |
8.3 |
14.2 |
19.4 |
21.9 |
20.8 |
16.9 |
10.3 |
3.9 |
0.6 |
Heating Degree Days |
°C |
475.6 |
392.2 |
298.2 |
123.1 |
15.7 |
-16.3 |
-17.8 |
-17.7 |
-11.3 |
83.8 |
256.1 |
387.9 |
Cooling Degree Days |
°C |
-17.8 |
-17.6 |
-16.2 |
-1.9 |
60.4 |
177.8 |
256.9 |
226.9 |
116.1 |
10.6 |
-17.2 |
-17.7 |
Precipitation |
M |
6.9 |
7.4 |
8.2 |
10.1 |
12.5 |
13.2 |
12.2 |
10.2 |
11.1 |
11.6 |
8.0 |
9.7 |