Annual Weather Averages Near Napa
Averages are for Napa County Airport, which is 9 kilometers from Napa.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Napa
High Temp: 27 °C
Low Temp: 3 °C
Mean Temp: 14 °C
Precipitation: 46.9 mm
Humidity: 69%
Dew Point: 8 °C
Wind: 20 km/h
Pressure: 1016 mbar
Visibility: 16 km
一月 Climate & Weather Averages in Napa
High Temp: 14 °C
Low Temp: 3 °C
Mean Temp: 9 °C
Precipitation: 113.3 mm
Humidity: 81%
Dew Point: 5 °C
Wind: 16 km/h
Pressure: 1020 mbar
Visibility: 12 km
二月 Climate & Weather Averages in Napa
High Temp: 16 °C
Low Temp: 4 °C
Mean Temp: 10 °C
Precipitation: 107.0 mm
Humidity: 76%
Dew Point: 6 °C
Wind: 16 km/h
Pressure: 1018 mbar
Visibility: 15 km
三月 Climate & Weather Averages in Napa
High Temp: 18 °C
Low Temp: 5 °C
Mean Temp: 12 °C
Precipitation: 73.1 mm
Humidity: 73%
Dew Point: 7 °C
Wind: 17 km/h
Pressure: 1017 mbar
Visibility: 16 km
四月 Climate & Weather Averages in Napa
High Temp: 20 °C
Low Temp: 6 °C
Mean Temp: 13 °C
Precipitation: 34.3 mm
Humidity: 68%
Dew Point: 8 °C
Wind: 22 km/h
Pressure: 1016 mbar
Visibility: 18 km
五月 Climate & Weather Averages in Napa
High Temp: 23 °C
Low Temp: 9 °C
Mean Temp: 16 °C
Precipitation: 22.3 mm
Humidity: 66%
Dew Point: 9 °C
Wind: 25 km/h
Pressure: 1014 mbar
Visibility: 17 km
六月 Climate & Weather Averages in Napa
High Temp: 26 °C
Low Temp: 11 °C
Mean Temp: 18 °C
Precipitation: 5.9 mm
Humidity: 61%
Dew Point: 11 °C
Wind: 28 km/h
Pressure: 1012 mbar
Visibility: 18 km
七月 Climate & Weather Averages in Napa
High Temp: 26 °C
Low Temp: 12 °C
Mean Temp: 19 °C
Precipitation: 0.2 mm
Humidity: 64%
Dew Point: 12 °C
Wind: 28 km/h
Pressure: 1013 mbar
Visibility: 17 km
八月 Climate & Weather Averages in Napa
High Temp: 27 °C
Low Temp: 12 °C
Mean Temp: 19 °C
Precipitation: 1.2 mm
Humidity: 64%
Dew Point: 12 °C
Wind: 25 km/h
Pressure: 1012 mbar
Visibility: 17 km
九月 Climate & Weather Averages in Napa
High Temp: 27 °C
Low Temp: 10 °C
Mean Temp: 19 °C
Precipitation: 2.0 mm
Humidity: 62%
Dew Point: 11 °C
Wind: 19 km/h
Pressure: 1012 mbar
Visibility: 16 km
十月 Climate & Weather Averages in Napa
High Temp: 24 °C
Low Temp: 8 °C
Mean Temp: 16 °C
Precipitation: 33.1 mm
Humidity: 62%
Dew Point: 8 °C
Wind: 14 km/h
Pressure: 1015 mbar
Visibility: 16 km
十一月 Climate & Weather Averages in Napa
High Temp: 18 °C
Low Temp: 5 °C
Mean Temp: 11 °C
Precipitation: 55.5 mm
Humidity: 73%
Dew Point: 7 °C
Wind: 12 km/h
Pressure: 1018 mbar
Visibility: 14 km
十二月 Climate & Weather Averages in Napa
High Temp: 14 °C
Low Temp: 3 °C
Mean Temp: 9 °C
Precipitation: 114.6 mm
Humidity: 79%
Dew Point: 5 °C
Wind: 15 km/h
Pressure: 1020 mbar
Visibility: 13 km