What is the hottest month in Alturas, CA?

July is the warmest month, with a normal high of 90°F at Alturas.

What is the coldest month in Alturas, CA?

January is the coldest month, with a normal low of 21°F.

What is the wettest month in Alturas, CA?

December has the most precipitation on average, about 1.51 inches.

Checked Oct 25, 2026

Alturas, CA Climate

1991 to 2020 normals at Alturas, 0.4 mi from the center of Alturas, elevation 4378 ft.

Average weather by month

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

Month	High	Low	Precip.	Snow
January	44°	21°	1.49 in	--
February	47°	23°	0.98 in	--
March	53°	27°	1.22 in	--
April	59°	31°	1.21 in	--
May	70°	37°	1.39 in	--
June	79°	42°	0.71 in	--
July	90°	46°	0.23 in	--
August	88°	44°	0.30 in	--
September	81°	38°	0.37 in	--
October	67°	31°	0.94 in	--
November	52°	25°	1.39 in	--
December	42°	23°	1.51 in	--
Year	64°		11.74 in	--

Frequently asked questions

What is the hottest month in Alturas, CA?: July is the warmest month, with a normal high of 90°F at Alturas.
What is the coldest month in Alturas, CA?: January is the coldest month, with a normal low of 21°F.
What is the wettest month in Alturas, CA?: December has the most precipitation on average, about 1.51 inches.

Today

Alturas, 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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