What is the hottest month in Leonia, NJ?

July is the warmest month, with a normal high of 87°F at Teterboro AP.

What is the coldest month in Leonia, NJ?

January is the coldest month, with a normal low of 26°F.

What is the wettest month in Leonia, NJ?

July has the most precipitation on average, about 4.45 inches.

Checked Oct 25, 2026

Leonia, NJ Climate

1991 to 2020 normals at Teterboro AP, 3.9 mi from the center of Leonia, elevation 9 ft.

Average weather by month

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

Month	High	Low	Precip.	Snow
January	40°	26°	3.28 in	--
February	43°	27°	2.82 in	--
March	51°	34°	4.09 in	--
April	63°	44°	3.97 in	--
May	73°	53°	3.94 in	--
June	82°	63°	4.25 in	--
July	87°	69°	4.45 in	--
August	85°	67°	4.25 in	--
September	78°	60°	4.11 in	--
October	67°	48°	3.73 in	--
November	56°	38°	3.30 in	--
December	45°	31°	4.10 in	--
Year	64°		46.29 in	--

Frequently asked questions

What is the hottest month in Leonia, NJ?: July is the warmest month, with a normal high of 87°F at Teterboro AP.
What is the coldest month in Leonia, NJ?: January is the coldest month, with a normal low of 26°F.
What is the wettest month in Leonia, NJ?: July has the most precipitation on average, about 4.45 inches.

Today

Leonia, NJ 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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