Annual Weather Averages Near Fort St. John
Averages are for Fort St John, which is 4 miles from Fort St. John.
Based on weather reports collected during 1985–2015.
All Year Climate & Weather Averages in Fort St. John
High Temp: 71 °F
Low Temp: 2 °F
Mean Temp: 37 °F
Precipitation: 0.80"
Humidity: 66%
Dew Point: 25 °F
Wind: 8 mph
Pressure: 29.97 "Hg
Visibility: 17 mi
January Climate & Weather Averages in Fort St. John
High Temp: 18 °F
Low Temp: 2 °F
Mean Temp: 10 °F
Precipitation: 0.56"
Humidity: 71%
Dew Point: 2 °F
Wind: 9 mph
Pressure: 30.03 "Hg
Visibility: 15 mi
February Climate & Weather Averages in Fort St. John
High Temp: 24 °F
Low Temp: 8 °F
Mean Temp: 16 °F
Precipitation: 0.41"
Humidity: 69%
Dew Point: 7 °F
Wind: 8 mph
Pressure: 30.06 "Hg
Visibility: 16 mi
March Climate & Weather Averages in Fort St. John
High Temp: 32 °F
Low Temp: 15 °F
Mean Temp: 24 °F
Precipitation: 0.58"
Humidity: 63%
Dew Point: 12 °F
Wind: 9 mph
Pressure: 30.00 "Hg
Visibility: 17 mi
April Climate & Weather Averages in Fort St. John
High Temp: 49 °F
Low Temp: 30 °F
Mean Temp: 39 °F
Precipitation: 0.41"
Humidity: 56%
Dew Point: 23 °F
Wind: 9 mph
Pressure: 29.96 "Hg
Visibility: 18 mi
May Climate & Weather Averages in Fort St. John
High Temp: 61 °F
Low Temp: 40 °F
Mean Temp: 50 °F
Precipitation: 0.68"
Humidity: 53%
Dew Point: 32 °F
Wind: 9 mph
Pressure: 29.96 "Hg
Visibility: 19 mi
June Climate & Weather Averages in Fort St. John
High Temp: 68 °F
Low Temp: 48 °F
Mean Temp: 58 °F
Precipitation: 1.34"
Humidity: 60%
Dew Point: 42 °F
Wind: 8 mph
Pressure: 29.92 "Hg
Visibility: 19 mi
July Climate & Weather Averages in Fort St. John
High Temp: 71 °F
Low Temp: 51 °F
Mean Temp: 61 °F
Precipitation: 1.68"
Humidity: 65%
Dew Point: 48 °F
Wind: 7 mph
Pressure: 29.95 "Hg
Visibility: 17 mi
August Climate & Weather Averages in Fort St. John
High Temp: 70 °F
Low Temp: 49 °F
Mean Temp: 59 °F
Precipitation: 0.85"
Humidity: 67%
Dew Point: 46 °F
Wind: 7 mph
Pressure: 29.96 "Hg
Visibility: 17 mi
September Climate & Weather Averages in Fort St. John
High Temp: 61 °F
Low Temp: 42 °F
Mean Temp: 51 °F
Precipitation: 0.81"
Humidity: 66%
Dew Point: 39 °F
Wind: 8 mph
Pressure: 29.96 "Hg
Visibility: 17 mi
October Climate & Weather Averages in Fort St. John
High Temp: 47 °F
Low Temp: 31 °F
Mean Temp: 39 °F
Precipitation: 0.67"
Humidity: 69%
Dew Point: 28 °F
Wind: 9 mph
Pressure: 29.94 "Hg
Visibility: 16 mi
November Climate & Weather Averages in Fort St. John
High Temp: 28 °F
Low Temp: 14 °F
Mean Temp: 21 °F
Precipitation: 0.87"
Humidity: 76%
Dew Point: 14 °F
Wind: 9 mph
Pressure: 29.95 "Hg
Visibility: 14 mi
December Climate & Weather Averages in Fort St. John
High Temp: 20 °F
Low Temp: 5 °F
Mean Temp: 13 °F
Precipitation: 0.67"
Humidity: 74%
Dew Point: 6 °F
Wind: 8 mph
Pressure: 29.99 "Hg
Visibility: 15 mi