Harlem 20S, Montana
ID: USC00243934 Latitude: 48.2383 Longitude: -108.6783
Elevation: 2694.9 feet ( 821.4 meters)
Source: NOAA Climate Normals 1991-2020
Precipitation Total: 14.26 in., 5.61 cm.
Monthly Data Table for Harlem 20S, Montana
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 |
33.0 |
30.2 |
43.7 |
55.7 |
65.7 |
75.1 |
85.8 |
84.5 |
73.0 |
57.5 |
44.6 |
32.8 |
Minimum Temperature |
°F |
9.7 |
6.4 |
18.9 |
28.3 |
36.8 |
43.9 |
51.5 |
48.4 |
40.3 |
29.5 |
18.8 |
10.1 |
Heating Degree Days |
°F |
1353.4 |
1307.0 |
1044.9 |
690.2 |
432.2 |
190.7 |
40.0 |
73.5 |
276.3 |
668.5 |
999.1 |
1349.6 |
Cooling Degree Days |
°F |
0.0 |
0.0 |
0.0 |
0.2 |
5.8 |
25.8 |
152.7 |
118.3 |
25.6 |
2.1 |
0.0 |
0.0 |
Precipitation |
I |
0.7 |
0.6 |
0.6 |
1.6 |
2.9 |
2.8 |
1.5 |
1.5 |
1.8 |
1.3 |
0.5 |
0.5 |
Metric Units
Statistic |
Units |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Maximum Temperature |
°C |
0.6 |
-1.0 |
6.5 |
13.2 |
18.7 |
23.9 |
29.9 |
29.2 |
22.8 |
14.2 |
7.0 |
0.4 |
Minimum Temperature |
°C |
-12.4 |
-14.2 |
-7.3 |
-2.1 |
2.7 |
6.6 |
10.8 |
9.1 |
4.6 |
-1.4 |
-7.3 |
-12.2 |
Heating Degree Days |
°C |
734.1 |
708.3 |
562.7 |
365.7 |
222.3 |
88.2 |
4.4 |
23.1 |
135.7 |
353.6 |
537.3 |
732.0 |
Cooling Degree Days |
°C |
-17.8 |
-17.8 |
-17.8 |
-17.7 |
-14.6 |
-3.4 |
67.1 |
47.9 |
-3.6 |
-16.6 |
-17.8 |
-17.8 |
Precipitation |
M |
1.7 |
1.5 |
1.5 |
4.0 |
7.4 |
7.1 |
3.9 |
3.7 |
4.5 |
3.2 |
1.3 |
1.3 |