Perris, CA Weather & Climate Normals
What a normal year in Perris actually looks like
On the 30-year record NOAA keeps for Perris, CA, the comfort score comes out to 59/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 6 months a year land in the 55–75°F range this site treats as mild.
How much Perris's weather actually swings
Average temperatures in Perris run from 51°F in Dec up to 78°F in Aug, a 27.3°F seasonal swing, a middling gap by national standards.
Perris, month by month
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 66°F | 37°F | 2.05in |
| Feb | 66°F | 38°F | 2.43in |
| Mar | 71°F | 40°F | 1.51in |
| Apr | 74°F | 44°F | 0.76in |
| May | 80°F | 51°F | 0.27in |
| Jun | 87°F | 56°F | 0.07in |
| Jul | 94°F | 62°F | 0.13in |
| Aug | 95°F | 62°F | 0.36in |
| Sep | 92°F | 59°F | 0.16in |
| Oct | 82°F | 49°F | 0.47in |
| Nov | 72°F | 41°F | 0.67in |
| Dec | 65°F | 37°F | 1.77in |
If you're timing a visit, Mar, Apr, May, Jun, Oct, and Nov are Perris's mildest stretch; if you're moving there, you should plan around Aug's heat and Dec's cold instead.
How wet Perris actually gets
Perris averages 10.65in 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.
Perris against the rest of the country
Out of 4876 cities scored here, Perris comes in at 566; within CA alone it ranks 314 of 429. Population is about 83,032.
Checking the actual forecast
These figures come from March Afb, CA US, the NOAA station 7.8 miles from Perris, 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