Vivian climate

Vivian Weather in September

NOAA 1991-2020 normals for Mooringsport 1 N, 18.7 km from Vivian

Average highs run from 92°F on September 1 to 84°F on September 30, and lows from 70°F to 60°F. Normal precipitation for the month is 4.12 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 Vivian, 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
4.12 in
Record high
108°FSep 14, 2011
Record low
41°FSep 23, 1999
Chance of a freeze
0%
Days of 90°F or more
14.1
Daylight
12 h 50 min to 11 h 52 min
Cloud cover
44%
Humidity
65%
Dew point
63°F
Wind
4.3 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°F70°F104°F 201159°F 200422%0%
Sep 292°F69°F102°F 201159°F 200922%0%
Sep 392°F69°F101°F 201259°F 200922%0%
Sep 492°F69°F103°F 201262°F 200622%0%
Sep 591°F69°F105°F 199857°F 201022%0%
Sep 691°F68°F104°F 201255°F 201122%0%
Sep 791°F68°F106°F 201250°F 201122%0%
Sep 891°F68°F106°F 202350°F 201121%0%
Sep 991°F68°F102°F 201953°F 202421%0%
Sep 1090°F67°F100°F 202653°F 202421%0%
Sep 1190°F67°F100°F 202654°F 201121%0%
Sep 1290°F67°F100°F 202655°F 199921%0%
Sep 1389°F66°F104°F 202654°F 202221%0%
Sep 1489°F66°F108°F 201153°F 200621%0%
Sep 1589°F66°F103°F 202648°F 199921%0%
Sep 1689°F65°F103°F 202648°F 199921%0%
Sep 1788°F65°F104°F 202648°F 199921%0%
Sep 1888°F65°F101°F 202654°F 199921%0%
Sep 1988°F64°F101°F 200551°F 201221%0%
Sep 2088°F64°F101°F 200551°F 200621%0%
Sep 2187°F64°F102°F 200552°F 199921%0%
Sep 2287°F63°F103°F 200543°F 199921%0%
Sep 2387°F63°F100°F 200541°F 199921%0%
Sep 2486°F62°F97°F 202341°F 199921%0%
Sep 2586°F62°F96°F 202245°F 199921%0%
Sep 2686°F62°F99°F 201151°F 200621%0%
Sep 2785°F61°F96°F 200551°F 200621%0%
Sep 2885°F61°F93°F 199851°F 201021%0%
Sep 2985°F61°F94°F 199845°F 200621%0%
Sep 3084°F60°F99°F 201141°F 199921%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Vivian, 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 6:51 AM, sunset 7:41 PM
September 30
sunrise 7:10 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 USC00166364 (Mooringsport 1 N), public domain. Records: NOAA GHCN-Daily, station USC00410408, 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.