Gregg County climate

Gregg County Weather in September

NOAA 1991-2020 normals for Longview, 9.4 km from Gregg County

Average highs run from 92°F on September 1 to 85°F on September 30, and lows from 69°F to 60°F. Normal precipitation for the month is 3.48 in over about 6 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 Gregg County, 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
65°F
Precipitation
3.48 in
Record high
109°FSep 4, 2000
Record low
43°FSep 23, 1999
Chance of a freeze
0%
Days of 90°F or more
16.4
Daylight
12 h 50 min to 11 h 52 min
Cloud cover
43%
Humidity
64%
Dew point
63°F
Wind
6.5 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 192°F69°F108°F 200061°F 200420%0%
Sep 292°F69°F107°F 200062°F 200920%0%
Sep 392°F69°F108°F 200065°F 200920%0%
Sep 492°F69°F109°F 200065°F 200520%0%
Sep 592°F68°F101°F 201359°F 200520%0%
Sep 691°F68°F102°F 201254°F 201120%0%
Sep 791°F68°F106°F 202350°F 201120%0%
Sep 891°F68°F102°F 201955°F 201720%0%
Sep 991°F67°F99°F 202650°F 202420%0%
Sep 1090°F67°F98°F 202654°F 201120%0%
Sep 1190°F67°F100°F 201157°F 201720%0%
Sep 1290°F66°F103°F 201155°F 201720%0%
Sep 1390°F66°F107°F 201154°F 201519%0%
Sep 1489°F66°F102°F 201154°F 200619%0%
Sep 1589°F65°F100°F 202654°F 199919%0%
Sep 1689°F65°F100°F 202652°F 200819%0%
Sep 1789°F65°F100°F 202648°F 200019%0%
Sep 1888°F64°F99°F 200548°F 200019%0%
Sep 1988°F64°F100°F 201055°F 200019%0%
Sep 2088°F64°F98°F 200554°F 200619%0%
Sep 2187°F63°F100°F 200555°F 199919%0%
Sep 2287°F63°F99°F 200547°F 199919%0%
Sep 2387°F62°F98°F 200043°F 199919%0%
Sep 2487°F62°F97°F 201050°F 201419%0%
Sep 2586°F62°F99°F 201149°F 200019%0%
Sep 2686°F61°F98°F 200544°F 200019%0%
Sep 2786°F61°F96°F 201145°F 200019%0%
Sep 2885°F60°F96°F 201146°F 200019%0%
Sep 2985°F60°F98°F 201148°F 200019%0%
Sep 3085°F60°F95°F 202345°F 199919%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Gregg County, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 6:54 AM, sunset 7:44 PM
September 30
sunrise 7:13 AM, sunset 7:05 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00415341 (Longview), public domain. Records: NOAA GHCN-Daily, station USW00003901, 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.