Is this weather normal in Lewis County?

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

Weather › New York › Lewis County

Lewis County's warmest year in 131 on record was 2024, at 46.3° on average. Lewis County has warmed about 0.6° per decade since 1970.

This week

Usual for Oct 28 to Nov 3: highs near 50°, lows near 31°

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

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usual high for the datewarmercooler

The last 12 months

Oct: +1.9°OctNov: -2.0°NovDec: -5.3°DecJan 2026: -2.3°JanFeb: -2.7°FebMar: +3.5°MarApr: +3.9°AprMay: -2.2°MayJun: +0.6°JunJul: +1.3°JulAug: +0.5°AugSep: +0.3°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: -0.9 inOctNov: +1.7 inNovDec: +0.5 inDecJan 2026: +1.3 inJanFeb: -1.2 inFebMar: +1.9 inMarApr: +2.0 inAprMay: +0.0 inMayJun: -1.1 inJunJul: -0.7 inJulAug: +0.1 inAugSep: -0.9 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 Lewis County

MonthUsual high / lowUsual rainWarmestColdest
January26° / 7°3.9 in27.4° 19323.4° 1920
February29° / 9°3.0 in27.4° 20242.8° 1934
March38° / 17°3.2 in39.6° 201217.9° 1916
April52° / 30°3.7 in48.1° 192132.0° 1926
May65° / 42°4.0 in59.2° 191144.6° 1917
June73° / 51°4.3 in67.5° 194956.4° 1912
July77° / 56°4.0 in71.3° 192161.3° 1992
August76° / 55°4.0 in69.1° 195558.2° 1903
September69° / 47°4.1 in64.3° 196151.1° 1918
October56° / 37°5.1 in53.2° 194737.2° 1925
November43° / 27°4.2 in40.7° 201124.4° 1933
December32° / 16°4.2 in36.2° 20154.2° 1989

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

Towns in Lewis County

Nearby counties