Is this weather normal in Jefferson Parish?

Louisiana · county records since 1895, through September 2026.

Weather › Louisiana › Jefferson Parish

11 of the last 12 months ran warmer than usual in Jefferson Parish. Jefferson Parish ran the coolest against its usual of all 64 counties in Louisiana this September (+2°).

This week

Usual for Oct 28 to Nov 3: highs near 75°, lows near 57°

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

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usual high for the datewarmercooler

The last 12 months

Oct: +2.8°OctNov: +2.5°NovDec: +1.3°DecJan 2026: +0.1°JanFeb: +2.1°FebMar: +4.1°MarApr: +2.4°AprMay: -1.5°MayJun: +0.7°JunJul: +1.2°JulAug: +1.7°AugSep: +2.3°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: -0.1 inOctNov: -3.4 inNovDec: -0.6 inDecJan 2026: -2.5 inJanFeb: -1.9 inFebMar: -1.0 inMarApr: -1.8 inAprMay: +7.6 inMayJun: +2.2 inJunJul: -3.5 inJulAug: -2.8 inAugSep: -1.0 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 Jefferson Parish

MonthUsual high / lowUsual rainWarmestColdest
January63° / 45°5.3 in66.7° 195041.2° 1940
February66° / 49°4.0 in67.2° 201844.9° 1895
March72° / 54°4.5 in70.8° 202053.7° 1915
April78° / 60°4.9 in74.0° 190863.9° 1993
May84° / 68°5.1 in79.3° 202471.4° 1917
June89° / 74°7.0 in84.0° 201177.8° 1961
July91° / 75°7.7 in85.6° 202379.6° 1923
August91° / 75°7.0 in87.9° 202379.4° 1961
September88° / 72°5.7 in83.5° 201975.3° 1967
October80° / 63°3.8 in78.4° 191963.3° 1976
November71° / 52°3.8 in69.5° 202453.0° 1976
December65° / 47°4.6 in64.0° 202146.7° 1963

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

Towns in Jefferson Parish

Nearby counties