What is the hottest month in Rumson, NJ?

July is the warmest month, with a normal high of 84°F at Long Branch-Oakhurst.

What is the coldest month in Rumson, NJ?

January is the coldest month, with a normal low of 25°F.

What is the wettest month in Rumson, NJ?

August has the most precipitation on average, about 6.27 inches.

Checked Oct 25, 2026

Rumson, NJ Climate

1991 to 2020 normals at Long Branch-Oakhurst, 4.4 mi from the center of Rumson, elevation 30 ft.

Average weather by month

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

Month	High	Low	Precip.	Snow
January	42°	25°	4.20 in	--
February	43°	26°	3.31 in	--
March	49°	32°	4.33 in	--
April	59°	41°	3.91 in	--
May	68°	51°	4.13 in	--
June	78°	61°	4.34 in	--
July	84°	67°	4.40 in	--
August	82°	65°	6.27 in	--
September	76°	59°	4.33 in	--
October	66°	47°	4.71 in	--
November	56°	37°	3.82 in	--
December	47°	30°	4.78 in	--
Year	62°		52.53 in	--

Frequently asked questions

What is the hottest month in Rumson, NJ?: July is the warmest month, with a normal high of 84°F at Long Branch-Oakhurst.
What is the coldest month in Rumson, NJ?: January is the coldest month, with a normal low of 25°F.
What is the wettest month in Rumson, NJ?: August has the most precipitation on average, about 6.27 inches.

Today

Rumson, NJ 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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