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Climate & Weather Averages in Helena, Montana, USA

Currently: 57 °F. Mostly cloudy. (Weather station: Helena Regional Airport, USA). See more current weather

Annual Weather Averages in Helena

Based on weather reports collected during 1992–2021.

Jan
34
14
0.43
Feb
37
17
0.62
Mar
48
25
0.54
Apr
57
32
1.06
May
67
41
1.92
Jun
76
49
2.1
Jul
87
55
1.05
Aug
85
53
1.14
Sep
74
44
0.98
Oct
58
33
0.79
Nov
44
23
0.6
Dec
34
15
0.51

All Year Climate & Weather Averages in Helena

High Temp: 87 °F

Low Temp: 14 °F

Mean Temp: 46 °F

Precipitation: 0.98"

Humidity: 55%

Dew Point: 29 °F

Wind: 9 mph

Pressure: 30.07 "Hg

Visibility: 10 mi

January Climate & Weather Averages in Helena

High Temp: 34 °F

Low Temp: 14 °F

Mean Temp: 24 °F

Precipitation: 0.43"

Humidity: 70%

Dew Point: 15 °F

Wind: 8 mph

Pressure: 30.20 "Hg

Visibility: 9 mi

February Climate & Weather Averages in Helena

High Temp: 37 °F

Low Temp: 17 °F

Mean Temp: 27 °F

Precipitation: 0.62"

Humidity: 65%

Dew Point: 16 °F

Wind: 9 mph

Pressure: 30.16 "Hg

Visibility: 9 mi

March Climate & Weather Averages in Helena

High Temp: 48 °F

Low Temp: 25 °F

Mean Temp: 37 °F

Precipitation: 0.54"

Humidity: 57%

Dew Point: 22 °F

Wind: 11 mph

Pressure: 30.08 "Hg

Visibility: 10 mi

April Climate & Weather Averages in Helena

High Temp: 57 °F

Low Temp: 32 °F

Mean Temp: 45 °F

Precipitation: 1.06"

Humidity: 52%

Dew Point: 27 °F

Wind: 12 mph

Pressure: 30.02 "Hg

Visibility: 10 mi

May Climate & Weather Averages in Helena

High Temp: 67 °F

Low Temp: 41 °F

Mean Temp: 54 °F

Precipitation: 1.92"

Humidity: 51%

Dew Point: 35 °F

Wind: 11 mph

Pressure: 29.99 "Hg

Visibility: 10 mi

June Climate & Weather Averages in Helena

High Temp: 76 °F

Low Temp: 49 °F

Mean Temp: 62 °F

Precipitation: 2.10"

Humidity: 50%

Dew Point: 42 °F

Wind: 11 mph

Pressure: 29.95 "Hg

Visibility: 10 mi

July Climate & Weather Averages in Helena

High Temp: 87 °F

Low Temp: 55 °F

Mean Temp: 71 °F

Precipitation: 1.05"

Humidity: 41%

Dew Point: 44 °F

Wind: 9 mph

Pressure: 29.98 "Hg

Visibility: 10 mi

August Climate & Weather Averages in Helena

High Temp: 85 °F

Low Temp: 53 °F

Mean Temp: 69 °F

Precipitation: 1.14"

Humidity: 41%

Dew Point: 43 °F

Wind: 8 mph

Pressure: 29.99 "Hg

Visibility: 10 mi

September Climate & Weather Averages in Helena

High Temp: 74 °F

Low Temp: 44 °F

Mean Temp: 59 °F

Precipitation: 0.98"

Humidity: 47%

Dew Point: 37 °F

Wind: 9 mph

Pressure: 30.03 "Hg

Visibility: 10 mi

October Climate & Weather Averages in Helena

High Temp: 58 °F

Low Temp: 33 °F

Mean Temp: 46 °F

Precipitation: 0.79"

Humidity: 57%

Dew Point: 30 °F

Wind: 9 mph

Pressure: 30.10 "Hg

Visibility: 10 mi

November Climate & Weather Averages in Helena

High Temp: 44 °F

Low Temp: 23 °F

Mean Temp: 34 °F

Precipitation: 0.60"

Humidity: 63%

Dew Point: 22 °F

Wind: 9 mph

Pressure: 30.16 "Hg

Visibility: 9 mi

December Climate & Weather Averages in Helena

High Temp: 34 °F

Low Temp: 15 °F

Mean Temp: 24 °F

Precipitation: 0.51"

Humidity: 69%

Dew Point: 15 °F

Wind: 8 mph

Pressure: 30.19 "Hg

Visibility: 9 mi

Quick Climate Info

Hottest MonthJuly (71 °F avg)
Coldest MonthJanuary (24 °F avg)
Wettest MonthJune (2.10" avg)
Windiest MonthApril (12 mph avg)
Annual precip.11.73" (per year)

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