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San Anselmo, CA Weather


San Anselmo, CA climate is mild during summer when temperatures tend to be in the 60's and cool during winter when temperatures tend to be in the 50's.

The warmest month of the year is July with an average maximum temperature of 85.00 degrees Fahrenheit, while the coldest month of the year is December with an average minimum temperature of 40.60 degrees Fahrenheit.

Temperature variations between night and day tend to be relatively big during summer with a difference that can reach 31 degrees Fahrenheit, and fairly limited during winter with an average difference of 17 degrees Fahrenheit.

The annual average precipitation at San Anselmo is 47.47 Inches. Winter months tend to be wetter than summer months. The wettest month of the year is January with an average rainfall of 9.60 Inches.

Weather Data

Current Conditions

(Updated: 10:54 AM PST SUN NOV 8 2009)

Fair Fair, 57°F Humidity: 53% Dewpoint: 40°F
Wind Speed: CALM Heat Index: 57°F
Barometer: 30.10 in. Wind Chill: 57°F

Weather Forecast

(Generated: 4:00 AM PST SUN NOV 08 2009)
Hi: 66°F Today: Mostly sunny. Patchy fog in the morning. Highs in the 60s to lower 70s. Northwest winds 10 to 20 mph.
Lo: 45°F
Hi: 65°F Monday: Partly cloudy. Highs in the 60s. Southwest winds around 5 mph.
Lo: 49°F
Hi: 65°F Tuesday: Partly cloudy. A chance of showers. Highs in the 60s. North winds around 5 mph...Becoming west in the afternoon. Chance of showers 30 percent.
Lo: 49°F
Hi: 63°F Veterans day: Mostly cloudy in the morning then becoming partly cloudy. A chance of showers. Highs in the lower to mid 60s.
Lo: 45°F
Hi: 66°F Thursday: Partly cloudy. Highs in the 60s to lower 70s. Lows in the lower 40s.
Lo: 41°F
Hi: 66°F Friday: Partly cloudy. Highs in the 60s to lower 70s. Lows in the lower 40s.
Lo: 41°F
Hi: 66°F Friday: Partly cloudy. Highs in the 60s to lower 70s. Lows in the lower 40s.
Lo: 45°F

Moon, Sunrise and Sunset

Waning Gibbous Moon Moon Phase: Waning Gibbous Moon Civil Twilight:
6:15 AM PST
Sunrise:
6:42 AM PST
Sunset:
5:04 PM PST
Civil Twilight:
5:32 PM PST

Normal Climate

Normal Temperatures

(KENTFIELD Weather station, 1.78 miles from San Anselmo)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 56.2 61.4 65.3 70.6 76.0 81.8 85.0 84.4 82.1 75.4 63.4 56.3 71.5
Mean °F 48.5 52.2 54.7 58.2 62.5 66.9 69.2 69.0 67.3 62.5 54.2 48.5 59.5
Min °F 40.7 43.0 44.1 45.8 48.9 52.0 53.4 53.6 52.5 49.6 45.0 40.6 47.4

Normal Precipitation

(KENTFIELD Weather station, 1.78 miles from San Anselmo)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 9.60 9.10 7.05 2.56 1.20 0.24 0.01 0.12 0.50 2.33 7.47 7.29 47.47