Climate

Folsom weather by month

Average highs, lows, rain and snow for every month, from 30 years of weather records.

Average temperatures

Best time to visit: April, May, October, when highs are mild and rain is lightest.

Month	High	Low	Rain	Wet days
January	57°F	41°F	3.9 in	11
February	62°F	44°F	3.6 in	10
March	68°F	47°F	2.8 in	9
April	74°F	49°F	1.4 in	5
May	81°F	54°F	0.90 in	4
June	89°F	59°F	0.20 in	1
July	94°F	61°F	0.00 in	0
August	94°F	61°F	0.00 in	0
September	89°F	59°F	0.10 in	1
October	79°F	53°F	0.90 in	3
November	65°F	45°F	1.8 in	7
December	56°F	41°F	3.5 in	10

NOAA U.S. Climate Normals 1991–2020, Sacramento 5 Ese, Ca Us (16.7 mi away, 38 ft). Wet days: days with at least 0.01 in of precipitation.

What is the hottest month in Folsom?

July, with an average high of 94°F and low of 61°F.

What is the coldest month in Folsom?

December, with an average low of 41°F and high of 56°F.

When does it rain most in Folsom?

January is the wettest month, averaging 3.9 in of precipitation; the year totals about 19.1 inches.

What is the best time to visit Folsom?

For mild weather (highs between 65°F and 85°F) with the least rain, April, May, October.

Where do these numbers come from?

NOAA’s 1991–2020 U.S. Climate Normals for the Sacramento 5 Ese weather station, 16.7 miles from downtown: 30-year averages, not a forecast.