CLIMATE CHARTS
Roy, Montana
Latitude: 47.6167 Longitude: -108.7000
Elevation: 2313 feet (705.0 meters)
Monthly Data Table for Roy, Montana
Imperial Units
Statistic |
Units |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Maximum Temperature |
°F |
34.2 |
41.3 |
51.6 |
62.0 |
70.8 |
79.1 |
88.8 |
88.4 |
76.4 |
63.4 |
45.9 |
35.1 |
Minimum Temperature |
°F |
7.0 |
11.1 |
23.1 |
31.5 |
41.2 |
49.7 |
55.3 |
53.2 |
42.0 |
31.0 |
17.5 |
7.7 |
Heating Degree Days |
°F |
1376 |
1086 |
857 |
548 |
294 |
95 |
12 |
26 |
205 |
552 |
999 |
1351 |
Cooling Degree Days |
°F |
0 |
0 |
0 |
1 |
14 |
77 |
231 |
205 |
31 |
0 |
0 |
0 |
Precipitation |
in. |
0.39 |
0.31 |
0.67 |
1.14 |
2.47 |
2.69 |
1.66 |
1.45 |
1.20 |
0.68 |
0.47 |
0.50 |
Metric Units
Statistic |
Units |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Maximum Temperature |
°C |
1.2 |
5.2 |
10.9 |
16.7 |
21.6 |
26.2 |
31.6 |
31.3 |
24.7 |
17.4 |
7.7 |
1.7 |
Minimum Temperature |
°C |
-13.9 |
-11.6 |
-4.9 |
-0.3 |
5.1 |
9.8 |
12.9 |
11.8 |
5.6 |
-0.6 |
-8.1 |
-13.5 |
Heating Degree Days |
°C |
764 |
603 |
476 |
304 |
163 |
53 |
7 |
14 |
114 |
307 |
555 |
751 |
Cooling Degree Days |
°C |
0 |
0 |
0 |
1 |
8 |
43 |
128 |
114 |
17 |
0 |
0 |
0 |
Precipitation |
cm. |
0.99 |
0.79 |
1.70 |
2.90 |
6.27 |
6.83 |
4.22 |
3.68 |
3.05 |
1.73 |
1.19 |
1.27 |