Fairfax and San Anselmo have remarkably similar climates.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Fairfax | Metric | San Anselmo |
|---|---|---|
| 250 days | Sunny daysclear or partly cloudy skies | 250 days |
| 23 in | Precipitationper year | 23 in |
| 56 days | Wet daysrain or snow per year | 56 days |
| 0 in | Snowfallper year | 0 in |
| 22 days | Hot daysabove 90 °F | 22 days |
| 3 days | Freezing nightsat or below 32 °F | 3 days |
| 77% | Humidityaverage relative | 77% |
| 59 °F | Average temperatureyear round | 59 °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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fairfax high | 57 | 61 | 65 | 68 | 73 | 78 | 81 | 82 | 81 | 75 | 64 | 57 |
| San Anselmo high | 57 | 61 | 65 | 68 | 73 | 79 | 82 | 82 | 81 | 75 | 64 | 57 |
| Fairfax low | 42 | 44 | 45 | 47 | 50 | 53 | 54 | 55 | 54 | 51 | 46 | 42 |
| San Anselmo low | 42 | 44 | 45 | 47 | 50 | 53 | 54 | 55 | 54 | 51 | 46 | 42 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fairfax | 4.5 | 4.7 | 3.4 | 1.5 | 0.8 | 0.2 | 0.0 | 0.0 | 0.1 | 1.0 | 2.2 | 4.4 |
| San Anselmo | 4.5 | 4.7 | 3.4 | 1.5 | 0.8 | 0.2 | 0.0 | 0.0 | 0.1 | 1.0 | 2.2 | 4.4 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fairfax | 13 | 13 | 16 | 20 | 23 | 26 | 28 | 28 | 27 | 24 | 18 | 15 |
| San Anselmo | 13 | 13 | 16 | 20 | 23 | 26 | 28 | 28 | 27 | 24 | 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.
Fairfax vs another city
- Fairfax vs Lucas Valley-Marinwood, CA
- Fairfax vs Kentfield, CA
- Fairfax vs San Rafael, CA
- Fairfax vs Larkspur, CA
- Fairfax vs Corte Madera, CA
- Fairfax vs New York, NY
- Fairfax vs Los Angeles, CA
- Fairfax vs Chicago, IL
- Fairfax vs Houston, TX
- Fairfax vs Phoenix, AZ
- Fairfax vs Philadelphia, PA
San Anselmo vs another city
- San Anselmo vs Kentfield, CA
- San Anselmo vs San Rafael, CA
- San Anselmo vs Larkspur, CA
- San Anselmo vs Lucas Valley-Marinwood, CA
- San Anselmo vs Corte Madera, CA
- San Anselmo vs New York, NY
- San Anselmo vs Los Angeles, CA
- San Anselmo vs Chicago, IL
- San Anselmo vs Houston, TX
- San Anselmo vs Phoenix, AZ
- San Anselmo 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).