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January Normals for Roy, MT

< December February > Day Temperatures (°F) Precipitation (in) Degree Days Min Max Avg Heating Cooling 1 5 30 18 0.03 47 0 2 5 30 18 0.03 48 0 3 5 30 17 0.03 48 0 4 5 29 17 0.03 48 0 5 5 29 17 0.03 48 0 6 5 29 17 0.03 48 0 7 5 29 17 0.03 48 0 8 5 29 17 0.03 48 0 9 5 29 17 0.03 48 0 10 5 29 17 0.03 48 0 11 5 29 17 0.03 48 0 12 5 29 17 0.02 48 0 13 5 29 17 0.02 48 0 14 5 29 17 0.02 48 0 15 5 29 17 0.02 48 0 16 5 29 17 0.02 48 0 17 5 29 17 0.02 48 0 18 5 29 17 0.02 48 0 19 5 29 17 0.02 48 0 20 5 30 18 0.02 48 0 21 5 30 18 0.02 47 0 22 6 30 18 0.02 47 0 23 6 30 18 0.02 47 0 24 6 30 18 0.02 47 0 25 6 31 18 0.02 47 0 26 6 31 19 0.02 46 0 27 7 31 19 0.02 46 0 28 7 31 19 0.02 46 0 29 7 32 19 0.02 46 0 30 7 32 20 0.02 45 0 31 8 32 20 0.02 45 0 Month 6 30 18 0.73 1468 0 Data Controls Monthly: January February March April May June July August September October November December   | Yearly Related Maps Related Links Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation - Forecast - Past Weather