Simpson climate

Simpson Weather in September

NOAA 1991-2020 normals for Ft Polk Fullerton Lndg Strip, 11.6 km from Simpson

Average highs run from 91°F on September 1 to 86°F on September 30, and lows from 71°F to 63°F. Normal precipitation for the month is 4.25 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 Simpson, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
89°F
Average low
67°F
Precipitation
4.25 in
Record high
100°FSep 1, 2011
Record low
50°FSep 7, 2011
Chance of a freeze
0%
Days of 90°F or more
17.9
Daylight
12 h 47 min to 11 h 53 min
Cloud cover
45%
Humidity
75%
Dew point
67°F
Wind
3.6 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 191°F71°F100°F 201162°F 20060%
Sep 291°F71°F96°F 201057°F 20090%
Sep 391°F70°F96°F 201261°F 20090%
Sep 491°F70°F96°F 201266°F 20060%
Sep 591°F70°F97°F 201560°F 20110%
Sep 691°F70°F98°F 201254°F 20110%
Sep 790°F70°F98°F 201250°F 20110%
Sep 890°F69°F96°F 202653°F 20110%
Sep 990°F69°F94°F 201554°F 20110%
Sep 1090°F69°F95°F 201957°F 20120%
Sep 1190°F69°F97°F 201058°F 20210%
Sep 1290°F68°F97°F 202655°F 20150%
Sep 1390°F68°F97°F 201152°F 20150%
Sep 1489°F68°F98°F 201950°F 20150%
Sep 1589°F68°F97°F 201960°F 20220%
Sep 1689°F67°F96°F 201060°F 20110%
Sep 1789°F67°F96°F 201063°F 20070%
Sep 1889°F67°F97°F 201859°F 20230%
Sep 1988°F66°F96°F 201556°F 20120%
Sep 2088°F66°F97°F 201551°F 20120%
Sep 2188°F66°F97°F 202254°F 20060%
Sep 2288°F66°F98°F 202257°F 20210%
Sep 2388°F65°F98°F 202353°F 20210%
Sep 2487°F65°F97°F 201053°F 20210%
Sep 2587°F65°F97°F 202253°F 20210%
Sep 2687°F64°F96°F 202351°F 20060%
Sep 2787°F64°F95°F 202353°F 20060%
Sep 2887°F63°F94°F 200952°F 20100%
Sep 2986°F63°F95°F 201152°F 20060%
Sep 3086°F63°F95°F 202350°F 20200%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Simpson, 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 6:48 AM, sunset 7:35 PM
September 30
sunrise 7:05 AM, sunset 6:58 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00053988 (Ft Polk Fullerton Lndg Strip), public domain. Records: NOAA GHCN-Daily, station USW00053988, 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.