CA
American Canyon and Napa have remarkably similar climates.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| American Canyon | Metric | Napa |
|---|---|---|
| 258 days | Sunny daysclear or partly cloudy skies | 258 days |
| 23 in | Precipitationper year | 23 in |
| 55 days | Wet daysrain or snow per year | 55 days |
| 0 in | Snowfallper year | 0 in |
| 19 days | Hot daysabove 90 °F | 31 days |
| 29 days | Freezing nightsat or below 32 °F | 15 days |
| 68% | Humidityaverage relative | 67% |
| 58 °F | Average temperatureyear round | 60 °F |
Monthly temperatures
Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.
Daily highs
Daily lows
View monthly temperatures as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| American Canyon high | 57 | 61 | 65 | 69 | 74 | 79 | 80 | 81 | 81 | 76 | 65 | 57 |
| Napa high | 58 | 63 | 67 | 71 | 76 | 82 | 83 | 83 | 84 | 78 | 66 | 58 |
| American Canyon low | 39 | 41 | 42 | 44 | 48 | 52 | 55 | 55 | 52 | 47 | 41 | 38 |
| Napa low | 40 | 42 | 43 | 45 | 49 | 53 | 55 | 55 | 53 | 49 | 43 | 39 |
Monthly precipitation
Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.
View monthly precipitation as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| American Canyon | 4.6 | 4.6 | 3.4 | 1.5 | 0.8 | 0.2 | 0.0 | 0.0 | 0.1 | 1.0 | 2.2 | 4.3 |
| Napa | 4.6 | 4.6 | 3.4 | 1.5 | 0.8 | 0.2 | 0.0 | 0.0 | 0.1 | 1.0 | 2.2 | 4.3 |
Monthly sunny days
Days each month with clear or partly cloudy skies, so compare the same month between cities.
View monthly sunny days as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| American Canyon | 14 | 13 | 16 | 20 | 24 | 27 | 30 | 30 | 28 | 25 | 18 | 15 |
| Napa | 14 | 13 | 16 | 20 | 24 | 27 | 30 | 30 | 28 | 25 | 18 | 15 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
American Canyon vs another city
- American Canyon vs Vallejo, CA
- American Canyon vs Benicia, CA
- American Canyon vs Rodeo, CA
- American Canyon vs Hercules, CA
- American Canyon vs Pinole, CA
- American Canyon vs New York, NY
- American Canyon vs Los Angeles, CA
- American Canyon vs Chicago, IL
- American Canyon vs Houston, TX
- American Canyon vs Phoenix, AZ
- American Canyon vs Philadelphia, PA
About this data
Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.
Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).