Douglas County climate

Douglas County Weather in September

NOAA 1991-2020 normals for Mableton 1 N, 24.3 km from Douglas County

Average highs run from 83°F on September 1 to 75°F on September 30, and lows from 66°F to 57°F. Normal precipitation for the month is 3.70 in over about 7 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 Douglas County, in °F, with the record for each date.406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
80°F
Average low
62°F
Precipitation
3.70 in
Record high
99°FSep 9, 2019
Record low
42°FSep 23, 1999
Chance of a freeze
0%
Days of 90°F or more
0.5
Daylight
12 h 51 min to 11 h 52 min
Cloud cover
49%
Humidity
71%
Dew point
61°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 183°F66°F96°F 202658°F 199928%0%
Sep 283°F66°F97°F 202658°F 199927%0%
Sep 383°F65°F98°F 202658°F 201727%0%
Sep 483°F65°F97°F 201958°F 201727%0%
Sep 582°F65°F97°F 199953°F 201026%0%
Sep 682°F65°F97°F 199954°F 201026%0%
Sep 782°F64°F96°F 201951°F 201726%0%
Sep 882°F64°F96°F 201951°F 201725%0%
Sep 982°F64°F99°F 201955°F 201125%0%
Sep 1081°F64°F97°F 201954°F 201125%0%
Sep 1181°F63°F96°F 201051°F 199925%0%
Sep 1281°F63°F97°F 201958°F 201225%0%
Sep 1381°F63°F97°F 201952°F 201524%0%
Sep 1480°F62°F94°F 201848°F 201524%0%
Sep 1580°F62°F94°F 201652°F 201524%0%
Sep 1680°F62°F95°F 201949°F 200124%0%
Sep 1779°F62°F96°F 201948°F 199924%0%
Sep 1879°F61°F93°F 201053°F 199924%0%
Sep 1979°F61°F94°F 201852°F 200424%0%
Sep 2078°F61°F95°F 201051°F 200624%0%
Sep 2178°F60°F95°F 201048°F 200624%0%
Sep 2278°F60°F95°F 202449°F 199924%0%
Sep 2377°F60°F94°F 202442°F 199924%0%
Sep 2477°F59°F92°F 201645°F 199924%0%
Sep 2577°F59°F93°F 201046°F 200824%0%
Sep 2676°F59°F94°F 201942°F 200124%0%
Sep 2776°F58°F95°F 201942°F 200124%0%
Sep 2876°F58°F91°F 201744°F 202224%0%
Sep 2976°F58°F93°F 201945°F 200324%0%
Sep 3075°F57°F96°F 201943°F 200324%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Douglas County, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

September 1
sunrise 7:13 AM, sunset 8:04 PM
September 30
sunrise 7:33 AM, sunset 7:25 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00095404 (Mableton 1 N), public domain. Records: NOAA GHCN-Daily, station USW00003888, 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.