Annual Weather Averages Near Simi Valley
Averages are for Newhall, which is 14 miles from Simi Valley.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Simi Valley
High Temp: 93 °F
Low Temp: 45 °F
Mean Temp: 66 °F
Precipitation: 1.02"
Humidity: 52%
Dew Point: 46 °F
Wind: 8 mph
Pressure: 29.96 "Hg
Visibility: 10 mi
January Climate & Weather Averages in Simi Valley
High Temp: 68 °F
Low Temp: 46 °F
Mean Temp: 57 °F
Precipitation: 2.52"
Humidity: 51%
Dew Point: 36 °F
Wind: 10 mph
Pressure: 30.07 "Hg
Visibility: 10 mi
February Climate & Weather Averages in Simi Valley
High Temp: 67 °F
Low Temp: 46 °F
Mean Temp: 57 °F
Precipitation: 3.39"
Humidity: 55%
Dew Point: 39 °F
Wind: 8 mph
Pressure: 30.04 "Hg
Visibility: 10 mi
March Climate & Weather Averages in Simi Valley
High Temp: 71 °F
Low Temp: 49 °F
Mean Temp: 60 °F
Precipitation: 1.92"
Humidity: 56%
Dew Point: 42 °F
Wind: 8 mph
Pressure: 30.01 "Hg
Visibility: 10 mi
April Climate & Weather Averages in Simi Valley
High Temp: 75 °F
Low Temp: 52 °F
Mean Temp: 64 °F
Precipitation: 0.66"
Humidity: 53%
Dew Point: 44 °F
Wind: 9 mph
Pressure: 29.96 "Hg
Visibility: 11 mi
May Climate & Weather Averages in Simi Valley
High Temp: 78 °F
Low Temp: 56 °F
Mean Temp: 67 °F
Precipitation: 0.19"
Humidity: 58%
Dew Point: 50 °F
Wind: 9 mph
Pressure: 29.91 "Hg
Visibility: 9 mi
June Climate & Weather Averages in Simi Valley
High Temp: 84 °F
Low Temp: 60 °F
Mean Temp: 72 °F
Precipitation: 0.07"
Humidity: 57%
Dew Point: 55 °F
Wind: 9 mph
Pressure: 29.87 "Hg
Visibility: 9 mi
July Climate & Weather Averages in Simi Valley
High Temp: 91 °F
Low Temp: 64 °F
Mean Temp: 77 °F
Precipitation: 0.03"
Humidity: 52%
Dew Point: 57 °F
Wind: 9 mph
Pressure: 29.89 "Hg
Visibility: 9 mi
August Climate & Weather Averages in Simi Valley
High Temp: 93 °F
Low Temp: 65 °F
Mean Temp: 79 °F
Precipitation: 0.02"
Humidity: 48%
Dew Point: 56 °F
Wind: 8 mph
Pressure: 29.88 "Hg
Visibility: 10 mi
September Climate & Weather Averages in Simi Valley
High Temp: 90 °F
Low Temp: 63 °F
Mean Temp: 76 °F
Precipitation: 0.09"
Humidity: 49%
Dew Point: 54 °F
Wind: 6 mph
Pressure: 29.87 "Hg
Visibility: 10 mi
October Climate & Weather Averages in Simi Valley
High Temp: 82 °F
Low Temp: 56 °F
Mean Temp: 69 °F
Precipitation: 0.51"
Humidity: 50%
Dew Point: 47 °F
Wind: 6 mph
Pressure: 29.93 "Hg
Visibility: 9 mi
November Climate & Weather Averages in Simi Valley
High Temp: 74 °F
Low Temp: 50 °F
Mean Temp: 62 °F
Precipitation: 0.66"
Humidity: 47%
Dew Point: 39 °F
Wind: 7 mph
Pressure: 30.02 "Hg
Visibility: 10 mi
December Climate & Weather Averages in Simi Valley
High Temp: 67 °F
Low Temp: 45 °F
Mean Temp: 56 °F
Precipitation: 2.19"
Humidity: 50%
Dew Point: 35 °F
Wind: 9 mph
Pressure: 30.07 "Hg
Visibility: 10 mi