Historical Weather Records & Monthly Climate for Napa, CA
All-Time High
114°F
All-Time Low
21°F
Max Daily Snow
1.9"
Max Daily Rain
6.1"
Max Snow Depth
0
Monthly Climate Averages for Napa, CA
Based on 30 years of historical data (1994 - 2023)
| Month | High (°F) | Low (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|
| January | 58° | 42° | 5.07" | 0.01" |
| February | 60° | 43° | 4.53" | 0.04" |
| March | 64° | 45° | 3.5" | 0.07" |
| April | 69° | 48° | 1.59" | 0 |
| May | 76° | 52° | 0.84" | 0 |
| June | 83° | 56° | 0.18" | 0 |
| July | 87° | 58° | 0.02" | 0 |
| August | 87° | 58° | 0.03" | 0 |
| September | 85° | 58° | 0.15" | 0 |
| October | 77° | 54° | 1.19" | 0 |
| November | 65° | 47° | 2.42" | 0 |
| December | 57° | 42° | 4.77" | 0 |
More Historical Climate Data for Cities in
CA