Annual Weather Averages Near Walnut Creek
Averages are for Buchanan Field, which is 6 miles from Walnut Creek.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Walnut Creek
High Temp: 88 °F
Low Temp: 40 °F
Mean Temp: 62 °F
Precipitation: 1.36"
Humidity: 59%
Dew Point: 46 °F
Wind: 12 mph
Pressure: 29.98 "Hg
Visibility: 11 mi
January Climate & Weather Averages in Walnut Creek
High Temp: 58 °F
Low Temp: 41 °F
Mean Temp: 49 °F
Precipitation: 3.18"
Humidity: 77%
Dew Point: 42 °F
Wind: 8 mph
Pressure: 30.11 "Hg
Visibility: 8 mi
February Climate & Weather Averages in Walnut Creek
High Temp: 62 °F
Low Temp: 43 °F
Mean Temp: 53 °F
Precipitation: 3.22"
Humidity: 70%
Dew Point: 43 °F
Wind: 9 mph
Pressure: 30.05 "Hg
Visibility: 10 mi
March Climate & Weather Averages in Walnut Creek
High Temp: 67 °F
Low Temp: 46 °F
Mean Temp: 56 °F
Precipitation: 2.19"
Humidity: 64%
Dew Point: 44 °F
Wind: 11 mph
Pressure: 30.03 "Hg
Visibility: 12 mi
April Climate & Weather Averages in Walnut Creek
High Temp: 71 °F
Low Temp: 49 °F
Mean Temp: 60 °F
Precipitation: 1.10"
Humidity: 58%
Dew Point: 44 °F
Wind: 14 mph
Pressure: 30.00 "Hg
Visibility: 12 mi
May Climate & Weather Averages in Walnut Creek
High Temp: 77 °F
Low Temp: 53 °F
Mean Temp: 65 °F
Precipitation: 0.55"
Humidity: 53%
Dew Point: 47 °F
Wind: 16 mph
Pressure: 29.93 "Hg
Visibility: 12 mi
June Climate & Weather Averages in Walnut Creek
High Temp: 84 °F
Low Temp: 56 °F
Mean Temp: 70 °F
Precipitation: 0.16"
Humidity: 49%
Dew Point: 50 °F
Wind: 17 mph
Pressure: 29.88 "Hg
Visibility: 12 mi
July Climate & Weather Averages in Walnut Creek
High Temp: 88 °F
Low Temp: 58 °F
Mean Temp: 73 °F
Precipitation: 0.01"
Humidity: 49%
Dew Point: 52 °F
Wind: 18 mph
Pressure: 29.88 "Hg
Visibility: 12 mi
August Climate & Weather Averages in Walnut Creek
High Temp: 88 °F
Low Temp: 59 °F
Mean Temp: 73 °F
Precipitation: 0.03"
Humidity: 50%
Dew Point: 53 °F
Wind: 16 mph
Pressure: 29.87 "Hg
Visibility: 12 mi
September Climate & Weather Averages in Walnut Creek
High Temp: 85 °F
Low Temp: 57 °F
Mean Temp: 71 °F
Precipitation: 0.07"
Humidity: 50%
Dew Point: 51 °F
Wind: 12 mph
Pressure: 29.87 "Hg
Visibility: 12 mi
October Climate & Weather Averages in Walnut Creek
High Temp: 77 °F
Low Temp: 52 °F
Mean Temp: 65 °F
Precipitation: 0.89"
Humidity: 53%
Dew Point: 47 °F
Wind: 9 mph
Pressure: 29.96 "Hg
Visibility: 11 mi
November Climate & Weather Averages in Walnut Creek
High Temp: 66 °F
Low Temp: 45 °F
Mean Temp: 55 °F
Precipitation: 1.67"
Humidity: 67%
Dew Point: 44 °F
Wind: 6 mph
Pressure: 30.06 "Hg
Visibility: 10 mi
December Climate & Weather Averages in Walnut Creek
High Temp: 58 °F
Low Temp: 40 °F
Mean Temp: 49 °F
Precipitation: 3.28"
Humidity: 74%
Dew Point: 41 °F
Wind: 7 mph
Pressure: 30.10 "Hg
Visibility: 8 mi