San Luis Obispo, CA Weather & Climate Normals
What a normal year in San Luis Obispo actually looks like
On the 30-year record NOAA keeps for San Luis Obispo, CA, the comfort score comes out to 80/100, very mild year-round: Many months fall in a comfortable temperature range with limited snow or seasonal extremes. Only 9 months a year land in the 55–75°F range this site treats as mild.
How much San Luis Obispo's weather actually swings
Average temperatures in San Luis Obispo run from 53°F in Dec up to 67°F in Aug, a 14.5°F seasonal swing, one of the smaller gaps in this dataset.
How wet San Luis Obispo actually gets
San Luis Obispo averages 17.94in of precipitation a year across roughly 56 days with measurable rain or snow; the nearest NOAA station does not record snowfall, so no snow figure is shown rather than guessed.
San Luis Obispo against the rest of the country
Out of 4876 cities scored here, San Luis Obispo comes in at 116; within CA alone it ranks 116 of 429. Population is about 49,729.
Checking the actual forecast
These figures come from SAN LUIS OBISPO AP, CA US, the NOAA station 2.5 miles from San Luis Obispo, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is