Helena Rgnl Ap, Montana
ID: USW00024144 Latitude: 46.6056 Longitude: -111.9636
Elevation: 3828.1 feet (1166.8 meters)
Source: NOAA Climate Normals 1991-2020
Precipitation Total: 11.40 in., 4.49 cm.
Monthly Data Table for Helena Rgnl Ap, 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 |
33.6 |
35.9 |
47.7 |
56.4 |
66.2 |
75.7 |
87.6 |
84.9 |
73.6 |
57.0 |
43.7 |
32.3 |
Minimum Temperature |
°F |
15.2 |
16.4 |
24.9 |
32.2 |
41.4 |
49.2 |
55.6 |
53.3 |
45.0 |
33.4 |
23.0 |
14.1 |
Heating Degree Days |
°F |
1258.8 |
1087.5 |
889.9 |
621.0 |
353.2 |
127.3 |
12.5 |
31.5 |
205.3 |
614.3 |
949.6 |
1295.4 |
Cooling Degree Days |
°F |
0.0 |
0.0 |
0.0 |
0.0 |
5.9 |
51.0 |
216.5 |
158.5 |
34.2 |
0.7 |
0.0 |
0.0 |
Precipitation |
I |
0.5 |
0.6 |
0.6 |
1.0 |
2.1 |
2.0 |
0.8 |
1.0 |
1.1 |
0.8 |
0.7 |
0.6 |
Metric Units
Statistic |
Units |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Maximum Temperature |
°C |
0.9 |
2.2 |
8.7 |
13.6 |
19.0 |
24.3 |
30.9 |
29.4 |
23.1 |
13.9 |
6.5 |
0.2 |
Minimum Temperature |
°C |
-9.3 |
-8.7 |
-3.9 |
0.1 |
5.2 |
9.6 |
13.1 |
11.8 |
7.2 |
0.8 |
-5.0 |
-9.9 |
Heating Degree Days |
°C |
681.6 |
586.4 |
476.6 |
327.2 |
178.4 |
52.9 |
-10.8 |
-0.3 |
96.3 |
323.5 |
509.8 |
701.9 |
Cooling Degree Days |
°C |
-17.8 |
-17.8 |
-17.8 |
-17.8 |
-14.5 |
10.6 |
102.5 |
70.3 |
1.2 |
-17.4 |
-17.8 |
-17.8 |
Precipitation |
M |
1.1 |
1.5 |
1.4 |
2.5 |
5.3 |
5.1 |
2.0 |
2.4 |
2.7 |
2.1 |
1.8 |
1.5 |