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Climate & Weather Averages in Hamilton, Montana, USA

Currently: 50 °F. Light rain. Mostly cloudy. (Weather station: Missoula International Airport, USA). See more current weather

Annual Weather Averages in Missoula International Airport

Missoula International Airport is 46 miles from Hamilton, so the actual climate in Hamilton can vary a bit.

Based on weather reports collected during 1992–2021.

All Year Climate & Weather Averages in Hamilton

High Temp: 87 °F

Low Temp: 19 °F

Mean Temp: 46 °F

Precipitation: 1.18"

Humidity: 63%

Dew Point: 32 °F

Wind: 7 mph

Pressure: 30.07 "Hg

Visibility: 10 mi

January Climate & Weather Averages in Hamilton

High Temp: 33 °F

Low Temp: 19 °F

Mean Temp: 26 °F

Precipitation: 0.97"

Humidity: 81%

Dew Point: 21 °F

Wind: 4 mph

Pressure: 30.20 "Hg

Visibility: 8 mi

February Climate & Weather Averages in Hamilton

High Temp: 38 °F

Low Temp: 21 °F

Mean Temp: 30 °F

Precipitation: 0.96"

Humidity: 74%

Dew Point: 22 °F

Wind: 6 mph

Pressure: 30.14 "Hg

Visibility: 9 mi

March Climate & Weather Averages in Hamilton

High Temp: 49 °F

Low Temp: 27 °F

Mean Temp: 38 °F

Precipitation: 0.89"

Humidity: 64%

Dew Point: 26 °F

Wind: 7 mph

Pressure: 30.07 "Hg

Visibility: 10 mi

April Climate & Weather Averages in Hamilton

High Temp: 57 °F

Low Temp: 32 °F

Mean Temp: 45 °F

Precipitation: 1.37"

Humidity: 58%

Dew Point: 30 °F

Wind: 9 mph

Pressure: 30.02 "Hg

Visibility: 11 mi

May Climate & Weather Averages in Hamilton

High Temp: 67 °F

Low Temp: 40 °F

Mean Temp: 53 °F

Precipitation: 1.76"

Humidity: 56%

Dew Point: 37 °F

Wind: 9 mph

Pressure: 29.99 "Hg

Visibility: 11 mi

June Climate & Weather Averages in Hamilton

High Temp: 75 °F

Low Temp: 47 °F

Mean Temp: 61 °F

Precipitation: 2.02"

Humidity: 56%

Dew Point: 44 °F

Wind: 9 mph

Pressure: 29.96 "Hg

Visibility: 11 mi

July Climate & Weather Averages in Hamilton

High Temp: 87 °F

Low Temp: 52 °F

Mean Temp: 69 °F

Precipitation: 0.86"

Humidity: 43%

Dew Point: 45 °F

Wind: 8 mph

Pressure: 29.97 "Hg

Visibility: 11 mi

August Climate & Weather Averages in Hamilton

High Temp: 85 °F

Low Temp: 50 °F

Mean Temp: 68 °F

Precipitation: 0.84"

Humidity: 43%

Dew Point: 43 °F

Wind: 7 mph

Pressure: 29.98 "Hg

Visibility: 11 mi

September Climate & Weather Averages in Hamilton

High Temp: 74 °F

Low Temp: 42 °F

Mean Temp: 58 °F

Precipitation: 0.97"

Humidity: 53%

Dew Point: 39 °F

Wind: 6 mph

Pressure: 30.03 "Hg

Visibility: 11 mi

October Climate & Weather Averages in Hamilton

High Temp: 57 °F

Low Temp: 33 °F

Mean Temp: 45 °F

Precipitation: 1.22"

Humidity: 66%

Dew Point: 33 °F

Wind: 5 mph

Pressure: 30.11 "Hg

Visibility: 10 mi

November Climate & Weather Averages in Hamilton

High Temp: 41 °F

Low Temp: 25 °F

Mean Temp: 33 °F

Precipitation: 1.16"

Humidity: 77%

Dew Point: 26 °F

Wind: 5 mph

Pressure: 30.16 "Hg

Visibility: 9 mi

December Climate & Weather Averages in Hamilton

High Temp: 32 °F

Low Temp: 19 °F

Mean Temp: 26 °F

Precipitation: 1.11"

Humidity: 81%

Dew Point: 21 °F

Wind: 5 mph

Pressure: 30.19 "Hg

Visibility: 8 mi

Quick Climate Info

Hottest MonthJuly (69 °F avg)
Coldest MonthDecember (26 °F avg)
Wettest MonthJune (2.02" avg)
Windiest MonthApril (9 mph avg)
Annual precip.14.13" (per year)

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