Is this weather normal in Grayson County?

Texas · county records since 1895, through September 2026.

Weather › Texas › Grayson County

Grayson County just had its warmest September ever recorded, +9° against the usual. 11 of the last 12 months ran warmer than usual there.

This week

Usual for Oct 28 to Nov 3: highs near 70°, lows near 49°

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

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usual high for the datewarmercooler

The last 12 months

Oct: +5.5°OctNov: +6.3°NovDec: +4.9°DecJan 2026: -0.9°JanFeb: +7.9°FebMar: +9.6°MarApr: +4.5°AprMay: +0.5°MayJun: +1.8°JunJul: +1.8°JulAug: +5.2°AugSep: +9.1°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: -1.0 inOctNov: +0.2 inNovDec: -3.1 inDecJan 2026: -1.1 inJanFeb: -1.1 inFebMar: -1.2 inMarApr: +2.4 inAprMay: -1.0 inMayJun: +2.0 inJunJul: -0.5 inJulAug: -2.5 inAugSep: -2.6 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 Grayson County

MonthUsual high / lowUsual rainWarmestColdest
January54° / 33°2.3 in51.7° 200629.9° 1930
February58° / 37°2.6 in55.6° 201731.4° 1899
March66° / 45°3.7 in65.1° 202643.4° 1915
April74° / 52°3.7 in69.4° 194857.6° 1983
May81° / 61°5.4 in76.5° 201865.0° 1907
June89° / 69°4.1 in86.2° 191173.1° 1903
July94° / 73°2.7 in89.7° 201178.6° 1905
August94° / 73°2.7 in90.9° 201177.5° 1992
September87° / 65°3.4 in85.0° 202667.0° 1974
October77° / 54°4.3 in73.0° 196357.5° 1976
November65° / 44°3.1 in60.4° 199945.4° 1929
December55° / 35°3.3 in57.9° 202131.3° 1983

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

Towns in Grayson County

Crime Radar: Sherman, Denison, Van Alstyne, Howe, Whitesboro, Pottsboro

Nearby counties