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Climate & Weather Averages in Johnstown, North Dakota, USA

Currently: -8 °F. Passing clouds. (Weather station: Grand Forks International Airport, USA). See more current weather

Annual Weather Averages in Grand Forks International Airport

Grand Forks International Airport is 19 miles from Johnstown, so the actual climate in Johnstown can vary a bit.

Based on weather reports collected during 1985–2015.

All Year Climate & Weather Averages in Johnstown

High Temp: 82 °F

Low Temp: -2 °F

Mean Temp: 41 °F

Precipitation: 0.75"

Humidity: 72%

Dew Point: 32 °F

Wind: 10 mph

Pressure: 30.00 "Hg

Visibility: 11 mi

January Climate & Weather Averages in Johnstown

High Temp: 17 °F

Low Temp: -2 °F

Mean Temp: 8 °F

Precipitation: 0.20"

Humidity: 79%

Dew Point: 3 °F

Wind: 11 mph

Pressure: 30.11 "Hg

Visibility: 10 mi

February Climate & Weather Averages in Johnstown

High Temp: 22 °F

Low Temp: 2 °F

Mean Temp: 12 °F

Precipitation: 0.17"

Humidity: 78%

Dew Point: 6 °F

Wind: 11 mph

Pressure: 30.13 "Hg

Visibility: 10 mi

March Climate & Weather Averages in Johnstown

High Temp: 34 °F

Low Temp: 17 °F

Mean Temp: 26 °F

Precipitation: 0.28"

Humidity: 78%

Dew Point: 19 °F

Wind: 11 mph

Pressure: 30.08 "Hg

Visibility: 10 mi

April Climate & Weather Averages in Johnstown

High Temp: 54 °F

Low Temp: 31 °F

Mean Temp: 42 °F

Precipitation: 0.51"

Humidity: 64%

Dew Point: 30 °F

Wind: 11 mph

Pressure: 29.99 "Hg

Visibility: 11 mi

May Climate & Weather Averages in Johnstown

High Temp: 68 °F

Low Temp: 43 °F

Mean Temp: 56 °F

Precipitation: 1.40"

Humidity: 61%

Dew Point: 41 °F

Wind: 11 mph

Pressure: 29.93 "Hg

Visibility: 11 mi

June Climate & Weather Averages in Johnstown

High Temp: 77 °F

Low Temp: 54 °F

Mean Temp: 65 °F

Precipitation: 1.88"

Humidity: 66%

Dew Point: 53 °F

Wind: 10 mph

Pressure: 29.88 "Hg

Visibility: 11 mi

July Climate & Weather Averages in Johnstown

High Temp: 82 °F

Low Temp: 58 °F

Mean Temp: 70 °F

Precipitation: 1.51"

Humidity: 69%

Dew Point: 59 °F

Wind: 9 mph

Pressure: 29.91 "Hg

Visibility: 11 mi

August Climate & Weather Averages in Johnstown

High Temp: 80 °F

Low Temp: 55 °F

Mean Temp: 68 °F

Precipitation: 1.28"

Humidity: 68%

Dew Point: 56 °F

Wind: 9 mph

Pressure: 29.94 "Hg

Visibility: 11 mi

September Climate & Weather Averages in Johnstown

High Temp: 71 °F

Low Temp: 46 °F

Mean Temp: 59 °F

Precipitation: 0.80"

Humidity: 68%

Dew Point: 47 °F

Wind: 10 mph

Pressure: 29.96 "Hg

Visibility: 12 mi

October Climate & Weather Averages in Johnstown

High Temp: 55 °F

Low Temp: 33 °F

Mean Temp: 44 °F

Precipitation: 0.47"

Humidity: 69%

Dew Point: 34 °F

Wind: 10 mph

Pressure: 29.99 "Hg

Visibility: 11 mi

November Climate & Weather Averages in Johnstown

High Temp: 36 °F

Low Temp: 19 °F

Mean Temp: 28 °F

Precipitation: 0.30"

Humidity: 78%

Dew Point: 21 °F

Wind: 11 mph

Pressure: 30.02 "Hg

Visibility: 10 mi

December Climate & Weather Averages in Johnstown

High Temp: 22 °F

Low Temp: 5 °F

Mean Temp: 14 °F

Precipitation: 0.21"

Humidity: 80%

Dew Point: 9 °F

Wind: 11 mph

Pressure: 30.08 "Hg

Visibility: 10 mi

Quick Climate Info

Hottest MonthJuly (70 °F avg)
Coldest MonthJanuary (8 °F avg)
Wettest MonthJune (1.88" avg)
Windiest MonthMay (11 mph avg)
Annual precip.9.02" (per year)

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