Jean Lafitte climate

Jean Lafitte Weather in September

NOAA 1991-2020 normals for Marrero 9 Ssw, 5.6 km from Jean Lafitte

Average highs run from 89°F on September 1 to 83°F on September 30, and lows from 73°F to 66°F. Normal precipitation for the month is 6.34 in.

September day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Jean Lafitte, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
87°F
Average low
70°F
Precipitation
6.34 in
Record high
103°FSep 10, 1980
Record low
46°FSep 30, 1967
Chance of a freeze
0%
Days of 90°F or more
11.2
Daylight
12 h 45 min to 11 h 54 min
Cloud cover
48%
Humidity
75%
Dew point
72°F
Wind
10.1 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Sep 189°F73°F95°F 196463°F 19680%
Sep 289°F73°F96°F 196461°F 19670%
Sep 389°F73°F96°F 197667°F 19870%
Sep 489°F73°F94°F 196363°F 19740%
Sep 588°F73°F96°F 196062°F 19740%
Sep 688°F72°F95°F 196063°F 19880%
Sep 788°F72°F95°F 196058°F 19880%
Sep 888°F72°F98°F 198063°F 19880%
Sep 988°F72°F96°F 197666°F 19880%
Sep 1088°F72°F103°F 198065°F 19640%
Sep 1188°F72°F98°F 198060°F 19560%
Sep 1287°F71°F96°F 198459°F 19760%
Sep 1387°F71°F94°F 198060°F 19680%
Sep 1487°F71°F96°F 198058°F 19640%
Sep 1587°F71°F99°F 198059°F 19640%
Sep 1687°F70°F93°F 197858°F 19610%
Sep 1786°F70°F94°F 198258°F 19610%
Sep 1886°F70°F94°F 197757°F 19610%
Sep 1986°F70°F93°F 195657°F 19680%
Sep 2086°F69°F93°F 198854°F 19810%
Sep 2186°F69°F95°F 198058°F 19810%
Sep 2285°F69°F96°F 195754°F 19830%
Sep 2385°F69°F96°F 198854°F 19820%
Sep 2485°F68°F97°F 198054°F 19890%
Sep 2585°F68°F95°F 198055°F 19900%
Sep 2684°F68°F92°F 197753°F 19750%
Sep 2784°F67°F93°F 197753°F 19750%
Sep 2884°F67°F95°F 197753°F 19670%
Sep 2984°F67°F92°F 197748°F 19670%
Sep 3083°F66°F92°F 197746°F 19670%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Jean Lafitte, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 6:38 AM, sunset 7:23 PM
September 30
sunrise 6:53 AM, sunset 6:47 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00165926 (Marrero 9 Ssw), public domain. Records: NOAA GHCN-Daily, station USW00012958, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.