What is the hottest month in Suffern, NY?

July is the warmest month, with a normal high of 84°F at Wanaque Raymond Dam.

What is the coldest month in Suffern, NY?

January is the coldest month, with a normal low of 20°F.

What is the wettest month in Suffern, NY?

June has the most precipitation on average, about 5.13 inches.

Checked Oct 25, 2026

Suffern, NY Climate

1991 to 2020 normals at Wanaque Raymond Dam, 9 mi from the center of Suffern, elevation 245 ft.

Average weather by month

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

Month	High	Low	Precip.	Snow
January	38°	20°	3.39 in	--
February	41°	20°	2.71 in	--
March	48°	29°	3.86 in	--
April	60°	39°	4.17 in	--
May	71°	50°	3.58 in	--
June	79°	58°	5.13 in	--
July	84°	64°	4.65 in	--
August	83°	63°	4.57 in	--
September	76°	56°	3.95 in	--
October	64°	43°	4.37 in	--
November	53°	35°	3.77 in	--
December	43°	27°	4.05 in	--
Year	62°		48.20 in	--

Frequently asked questions

What is the hottest month in Suffern, NY?: July is the warmest month, with a normal high of 84°F at Wanaque Raymond Dam.
What is the coldest month in Suffern, NY?: January is the coldest month, with a normal low of 20°F.
What is the wettest month in Suffern, NY?: June has the most precipitation on average, about 5.13 inches.

Today

Suffern, NY 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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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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