Folsom, CA Weather & Climate Normals
Folsom's real weather, in one number
Folsom, CA scores 65/100 on this site's reading of NOAA's own 30-year normals: mild with real seasons. A solid stretch of comfortable months alongside a noticeable but not extreme summer or winter. 7 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Folsom's hottest and coldest months
Folsom's hottest month is Jul, averaging 78°F; its coldest is Dec, averaging 49°F, a 29.3°F swing across the year, a middling gap by national standards.
Rain and snow in Folsom
Folsom averages 19.2in of precipitation a year across roughly 61 days with measurable rain or snow, and 0in of snow a year.
Where Folsom ranks
Folsom ranks 307 of 4876 US cities in this dataset for comfort score, and 271 of 429 within CA. About 88,091 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from SACRAMENTO 5 ESE, CA US, 16.7 miles from Folsom, not a prediction for any specific day.
More on how this is worked out
How the comfort score is calculated · Why some cities show no snow or rain figure