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Weather in Long Valley, NJ · National Weather Service + NOAA

Long Valley stays cool in summer

Long Valley has chilly winters and pleasant summers, with plenty of rain. A typical July afternoon reaches 83°, a January night drops to 19°, and about 30 inches of snow falls in a normal winter. A typical November afternoon reaches 52°, and nights fall to 33°.

Winter 39°/22°Spring 60°/38°Summer 81°/59°Fall 63°/43°
Right now
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Sunrise 6:33 am · sunset 4:52 pm

Getting the latest forecast from the National Weather Service…

What stands out about Long Valley’s weather

Read from 30 years of NOAA records. Each one opens the full story on the Climate page.

Climate →
Cool summersJuly afternoons average 83°, cooler than 888 of 941 New Jersey towns.Warming faster than mostThe last 30 years averaged 2.3° warmer than the 1900s, a bigger shift than 99% of U.S. towns.A wet climate51 inches of rain and melted snow a year, more than 90% of U.S. towns.Among New Jersey’s coldest wintersJanuary nights average 19°, colder than 849 of 941 New Jersey towns.
A normal year

Where today sits in Long Valley’s year

Typical highs and lows month by month, from 30 years of NOAA records.

Full climate →
Winter
39° / 22°
9 days with an inch or more of snow
Spring
60° / 38°
Last frost around Apr 25
Summer
81° / 59°
11 days reach 90° in a normal year
Fall now
63° / 43°
First frost around Oct 19
Pastthe usual first frost (Oct 19). Last frost next spring: Apr 25
Best months to be outside
MayJunJulAugSepOct
Highs of 62–84° and lows of 40° or more
How much snow does Long Valley get?About 30 inches a winter.When is it wettest?July, with 5.0 inches.Is it warmer than it used to be?+2.3° vs. the 20th century.

Weather talk

Road reports, first frosts and storm memories from neighbors in Long Valley.

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Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Long Valley itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Pottersville 2 Nnw, NJ (4 mi, snow) and Andover Aeroflex Airport, NJ (16 mi, frost, heat and degree days). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.