What is the hottest month in Perris, CA?

August is the warmest month, with a normal high of 95°F at March AFB.

What is the coldest month in Perris, CA?

December is the coldest month, with a normal low of 37°F.

What is the wettest month in Perris, CA?

February has the most precipitation on average, about 2.43 inches.

Checked Oct 25, 2026

Perris, CA Climate

1991 to 2020 normals at March AFB, 7.6 mi from the center of Perris, elevation 1516 ft.

Average weather by month

Select a month for daily normals and last year's weather

Month	High	Low	Precip.	Snow
January	66°	37°	2.05 in	--
February	66°	38°	2.43 in	--
March	71°	40°	1.51 in	--
April	74°	44°	0.76 in	--
May	80°	51°	0.27 in	--
June	87°	56°	0.07 in	--
July	94°	62°	0.13 in	--
August	95°	62°	0.36 in	--
September	92°	59°	0.16 in	--
October	82°	49°	0.47 in	--
November	72°	41°	0.67 in	--
December	65°	37°	1.77 in	--
Year	79°		10.65 in	--

Frequently asked questions

What is the hottest month in Perris, CA?: August is the warmest month, with a normal high of 95°F at March AFB.
What is the coldest month in Perris, CA?: December is the coldest month, with a normal low of 37°F.
What is the wettest month in Perris, CA?: February has the most precipitation on average, about 2.43 inches.

Today

Perris, CA forecast

Data sources

U.S. Climate Normals 1991-2020NOAA National Centers for Environmental Information
U.S. Climate Normals 1991-2020 (daily) and GHCN-Daily via Access Data ServiceNOAA National Centers for Environmental Information

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About this data

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Climate normals are 30-year averages measured at one weather station, which may be miles from the place named here or at a different elevation.

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