Is this weather normal in Warren County?

New Jersey · county records since 1895, through September 2026.

Weather › New Jersey › Warren County

Warren County has warmed about 0.7° per decade since 1970. September 2026 averaged 64.8° there, 1.1° above the usual for September (23rd warmest of 132).

This week

Usual for Oct 28 to Nov 3: highs near 58°, lows near 36°

That is the 1991 to 2020 average for these dates in Warren County. The Weather Service forecast fills in below.

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usual high for the datewarmercooler

The last 12 months

Oct: +0.8°OctNov: -0.3°NovDec: -5.3°DecJan 2026: -5.1°JanFeb: -4.6°FebMar: +4.4°MarApr: +3.6°AprMay: -0.1°MayJun: +1.4°JunJul: +0.7°JulAug: +0.7°AugSep: +1.1°Sepwarmercooler

Each bar is a month's average temperature against the usual for that month (1991 to 2020). Ranks compare the same month in every year since 1895.

Every year since 1895

18952025

Rain and drought

Oct: -1.6 inOctNov: -1.7 inNovDec: -1.8 inDecJan 2026: -1.5 inJanFeb: -1.5 inFebMar: +1.6 inMarApr: -1.4 inAprMay: -1.4 inMayJun: -1.4 inJunJul: +2.5 inJulAug: +2.2 inAugSep: +0.1 inSepwetterdrier

Rain and melted snow against the usual for each month. The drought reading is NOAA's Palmer index for the county.

Month by month in Warren County

MonthUsual high / lowUsual rainWarmestColdest
January37° / 19°3.5 in37.7° 202314.4° 1918
February40° / 21°2.7 in36.6° 201713.8° 1934
March48° / 28°3.8 in48.0° 201226.8° 1916
April61° / 37°3.9 in53.7° 192141.3° 1907
May71° / 47°4.0 in64.1° 201550.0° 1917
June79° / 56°4.7 in71.1° 194360.8° 1903
July84° / 61°4.8 in76.4° 199967.0° 1895
August82° / 59°4.7 in74.6° 202263.3° 1927
September75° / 52°4.6 in68.0° 196157.2° 1924
October64° / 41°4.5 in59.6° 200743.9° 1925
November52° / 32°3.4 in46.8° 200933.3° 1901
December41° / 24°4.2 in43.4° 201518.3° 1917

Warmest and coldest are the month's whole-month average temperature, with the year it happened.

Towns in Warren County

Crime Radar: Hackettstown, Washington, Belvidere

Nearby counties