Frost climate

Frost Weather in September

NOAA 1991-2020 normals for Navarro Mills Dam, 17.3 km from Frost

Average highs run from 93°F on September 1 to 85°F on September 30, and lows from 71°F to 61°F. Normal precipitation for the month is 3.23 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 Frost, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
89°F
Average low
67°F
Precipitation
3.23 in
Record high
110°FSep 1, 1939
Record low
38°FSep 27, 1942
Chance of a freeze
0%
Days of 90°F or more
18.3
Daylight
12 h 48 min to 11 h 52 min
Cloud cover
41%
Humidity
63%
Dew point
63°F
Wind
8.1 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 193°F71°F110°F 193955°F 191519%0%
Sep 293°F71°F110°F 193956°F 191519%0%
Sep 393°F71°F107°F 193953°F 199219%0%
Sep 492°F70°F109°F 200051°F 197419%0%
Sep 592°F70°F105°F 191351°F 197419%0%
Sep 692°F70°F105°F 191351°F 197419%0%
Sep 792°F70°F105°F 192251°F 197419%0%
Sep 891°F69°F109°F 202341°F 202419%0%
Sep 991°F69°F110°F 202351°F 200419%0%
Sep 1091°F69°F103°F 193653°F 201219%0%
Sep 1191°F68°F102°F 191053°F 196819%0%
Sep 1290°F68°F101°F 191052°F 194019%0%
Sep 1390°F68°F105°F 201153°F 194019%0%
Sep 1490°F67°F108°F 201154°F 194519%0%
Sep 1590°F67°F103°F 201148°F 198919%0%
Sep 1689°F67°F102°F 202640°F 190319%0%
Sep 1789°F66°F101°F 191148°F 197918%0%
Sep 1889°F66°F102°F 192743°F 198118%0%
Sep 1988°F66°F104°F 193344°F 198118%0%
Sep 2088°F65°F104°F 195644°F 197118%0%
Sep 2188°F65°F101°F 193344°F 191818%0%
Sep 2288°F64°F102°F 192640°F 198318%0%
Sep 2387°F64°F99°F 202243°F 199518%0%
Sep 2487°F64°F99°F 193145°F 197518%0%
Sep 2587°F63°F103°F 193139°F 198918%0%
Sep 2686°F63°F103°F 201142°F 200018%0%
Sep 2786°F62°F103°F 200538°F 194218%0%
Sep 2886°F62°F102°F 195342°F 199618%0%
Sep 2986°F61°F104°F 195343°F 192418%0%
Sep 3085°F61°F101°F 201140°F 192418%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Frost, in percent, and of at least 0.1 inch of snowfall.051015201102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 7:03 AM, sunset 7:51 PM
September 30
sunrise 7:21 AM, sunset 7:13 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00416210 (Navarro Mills Dam), public domain. Records: NOAA GHCN-Daily, station USC00414182, 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.