Vallejo, CA Weather & Climate Normals
What a normal year in Vallejo actually looks like
On the 30-year record NOAA keeps for Vallejo, 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 Vallejo's weather actually swings
Average temperatures in Vallejo run from 50°F in Jan up to 71°F in Sep, a 21.6°F seasonal swing, a middling gap by national standards.
How wet Vallejo actually gets
Vallejo averages 21.49in of precipitation a year across roughly 0 days with measurable rain or snow; the nearest NOAA station does not record snowfall, so no snow figure is shown rather than guessed.
Vallejo against the rest of the country
Out of 4876 cities scored here, Vallejo comes in at 145; within CA alone it ranks 145 of 429. Population is about 123,475.
Checking the actual forecast
These figures come from VALLEJO, CA US, the NOAA station 4.1 miles from Vallejo, 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