What is the hottest month in Thermal, CA?

July is the warmest month, with a normal high of 107°F at Desert Resorts RGNL AP.

What is the coldest month in Thermal, CA?

December is the coldest month, with a normal low of 38°F.

What is the wettest month in Thermal, CA?

January has the most precipitation on average, about 0.64 inches.

Checked Oct 25, 2026

Thermal, CA Climate

1991 to 2020 normals at Desert Resorts RGNL AP, 2 mi from the center of Thermal, elevation -118 ft.

Average weather by month

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

Month	High	Low	Precip.
January	71°	39°	0.64 in
February	74°	43°	0.61 in
March	81°	49°	0.34 in
April	87°	55°	0.08 in
May	95°	63°	0.01 in
June	103°	69°	0.01 in
July	107°	76°	0.13 in
August	106°	75°	0.12 in
September	102°	68°	0.32 in
October	91°	57°	0.19 in
November	79°	45°	0.17 in
December	69°	38°	0.34 in
Year	89°		2.96 in

Frequently asked questions

What is the hottest month in Thermal, CA?: July is the warmest month, with a normal high of 107°F at Desert Resorts RGNL AP.
What is the coldest month in Thermal, CA?: December is the coldest month, with a normal low of 38°F.
What is the wettest month in Thermal, CA?: January has the most precipitation on average, about 0.64 inches.

Today

Thermal, CA forecast

Data sources

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

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About this data

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