San Fernando, CA Weather & Climate Normals
San Fernando's real weather, in one number
San Fernando, CA scores 77/100 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. 9 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
San Fernando's hottest and coldest months
San Fernando's hottest month is Aug, averaging 78°F; its coldest is Dec, averaging 56°F, a 21.8°F swing across the year, a middling gap by national standards.
Rain and snow in San Fernando
San Fernando averages 14.64in of precipitation a year across roughly 36 days with measurable rain or snow, and 0in of snow a year.
Where San Fernando ranks
San Fernando ranks 185 of 4876 US cities in this dataset for comfort score, and 185 of 429 within CA. About 23,488 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from NORTHRIDGE CAL STATE, CA US, 5.9 miles from San Fernando, 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