Cupertino, CA Weather & Climate Normals
What a normal year in Cupertino actually looks like
On the 30-year record NOAA keeps for Cupertino, CA, the comfort score comes out to 78/100, mild with real seasons: A solid stretch of comfortable months alongside a noticeable but not extreme summer or winter. Only 9 months a year land in the 55–75°F range this site treats as mild.
How much Cupertino's weather actually swings
Average temperatures in Cupertino run from 51°F in Dec up to 68°F in Aug, a 17.5°F seasonal swing, one of the smaller gaps in this dataset.
How wet Cupertino actually gets
Cupertino averages 13.45in of precipitation a year across roughly 66 days with measurable rain or snow; the nearest NOAA station does not record snowfall, so no snow figure is shown rather than guessed.
Cupertino against the rest of the country
Out of 4876 cities scored here, Cupertino comes in at 150; within CA alone it ranks 150 of 429. Population is about 58,710.
Checking the actual forecast
These figures come from MOFFETT FEDERAL AIRFIELD, CA US, the NOAA station 6.0 miles from Cupertino, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · Why this uses the nearest NOAA station