CLIMATE CHARTS

Roy, Montana

Latitude: 47.6167 Longitude: -108.7000

Elevation: 2313 feet (705.0 meters)

Roy, Montana Temperature Chart Daily average maximum and minimum temperatures for Roy, Montana Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec High & Low Temperature °F  °C -30 -34.4 -20 -28.9 -10 -23.3 0 -17.8 10 -12.2 20 -6.7 30 -1.1 40 4.4 50 10.0 60 15.6 70 21.1 80 26.7 90 32.2 100 37.8 110 43.3 Roy, Montana Precipitation Chart Precipitation chart for Roy, Montana Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Precipitation In. Cm. 0.00 0.00 0.10 0.25 0.20 0.51 0.30 0.76 0.40 1.02 0.50 1.27 0.60 1.52 0.70 1.78 0.80 2.03 0.90 2.29 1.00 2.54 Daylight Chart for ROY, MT Daylight chart for ROY, MT. Latitude 47.6. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Sunrise/Sunset Daylight NOON NOON 0 0 2 2 4 4 6 6 8 8 10 10 12 12 14 2 16 4 18 6 20 8 22 10 24 12

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
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