Jasper climate

Jasper Weather in September

NOAA 1991-2020 normals for Sam Rayburn Dam, 18.6 km from Jasper

Average highs run from 93°F on September 1 to 86°F on September 30, and lows from 74°F to 65°F. Normal precipitation for the month is 4.44 in over about 8 wet days.

September day by day

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

Normal daily high and low temperature at Jasper, 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
70°F
Precipitation
4.44 in
Record high
109°FSep 1, 2000
Record low
45°FSep 22, 1983
Chance of a freeze
0%
Days of 90°F or more
14.8
Daylight
12 h 47 min to 11 h 53 min
Cloud cover
46%
Humidity
74%
Dew point
67°F
Wind
3.8 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 193°F74°F109°F 200062°F 200630%0%
Sep 293°F74°F108°F 200061°F 200930%0%
Sep 392°F73°F106°F 200056°F 198730%0%
Sep 492°F73°F107°F 200057°F 197430%0%
Sep 592°F73°F108°F 200057°F 197430%0%
Sep 692°F73°F103°F 200054°F 201129%0%
Sep 792°F73°F103°F 200052°F 201129%0%
Sep 891°F73°F102°F 202350°F 198829%0%
Sep 991°F72°F99°F 202355°F 198829%0%
Sep 1091°F72°F95°F 197256°F 201228%0%
Sep 1191°F72°F98°F 198056°F 202128%0%
Sep 1290°F72°F97°F 198057°F 201728%0%
Sep 1390°F71°F98°F 201159°F 201528%0%
Sep 1490°F71°F99°F 201154°F 201528%0%
Sep 1590°F71°F97°F 197656°F 198927%0%
Sep 1689°F70°F100°F 198051°F 198927%0%
Sep 1789°F70°F97°F 198249°F 200027%0%
Sep 1889°F70°F98°F 200553°F 198127%0%
Sep 1989°F69°F98°F 198246°F 198127%0%
Sep 2088°F69°F97°F 198249°F 198126%0%
Sep 2188°F69°F98°F 200552°F 201226%0%
Sep 2288°F68°F101°F 200545°F 198326%0%
Sep 2388°F68°F97°F 202346°F 198226%0%
Sep 2487°F68°F96°F 202345°F 199026%0%
Sep 2587°F67°F94°F 200046°F 199425%0%
Sep 2687°F67°F96°F 202248°F 197525%0%
Sep 2787°F66°F95°F 201147°F 197525%0%
Sep 2886°F66°F95°F 202345°F 199325%0%
Sep 2986°F66°F100°F 200545°F 199325%0%
Sep 3086°F65°F94°F 202347°F 202025%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Jasper, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 6:52 AM, sunset 7:39 PM
September 30
sunrise 7:09 AM, sunset 7:02 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00417936 (Sam Rayburn Dam), public domain. Records: NOAA GHCN-Daily, station USC00419101, 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.