Douglas climate

Douglas Weather in September

NOAA 1991-2020 normals for Buffumville Lake, 15.5 km from Douglas

Average highs run from 79°F on September 1 to 68°F on September 30, and lows from 56°F to 45°F. Normal precipitation for the month is 4.07 in over about 10 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, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
74°F
Average low
51°F
Precipitation
4.07 in
Record high
97°FSep 9, 2015
Record low
34°FSep 22, 2020
Chance of a freeze
14%
Daylight
13 h 08 min to 11 h 47 min
Cloud cover
55%
Humidity
75%
Dew point
55°F
Wind
4.7 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 179°F56°F94°F 201046°F 200931%0%
Sep 278°F56°F94°F 201041°F 201731%0%
Sep 378°F55°F94°F 201048°F 201731%0%
Sep 478°F55°F93°F 201849°F 200931%0%
Sep 578°F55°F91°F 201847°F 200731%0%
Sep 677°F55°F90°F 201844°F 201331%0%
Sep 777°F54°F94°F 201845°F 200431%0%
Sep 877°F54°F92°F 201551°F 201431%0%
Sep 976°F54°F97°F 201543°F 201331%0%
Sep 1076°F53°F92°F 201548°F 200931%0%
Sep 1176°F53°F87°F 201644°F 200831%0%
Sep 1275°F53°F95°F 201339°F 200631%0%
Sep 1375°F52°F89°F 200539°F 200631%0%
Sep 1475°F52°F86°F 200544°F 201931%0%
Sep 1574°F51°F89°F 201643°F 201432%0%
Sep 1674°F51°F84°F 201541°F 200732%0%
Sep 1773°F51°F87°F 201539°F 201332%0%
Sep 1873°F50°F89°F 201538°F 200732%0%
Sep 1973°F50°F87°F 201539°F 200732%0%
Sep 2072°F49°F83°F 201536°F 201433%0%
Sep 2172°F49°F84°F 200735°F 202033%0%
Sep 2271°F49°F83°F 201634°F 202033%0%
Sep 2371°F48°F87°F 201639°F 202034%0%
Sep 2470°F48°F87°F 201940°F 200834%0%
Sep 2570°F47°F90°F 201740°F 200534%0%
Sep 2670°F47°F88°F 201738°F 200934%0%
Sep 2769°F46°F89°F 200737°F 201534%0%
Sep 2869°F46°F87°F 201743°F 201535%0%
Sep 2968°F45°F87°F 201444°F 201335%0%
Sep 3068°F45°F83°F 201040°F 200535%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Douglas, 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 (EDT).

September 1
sunrise 6:13 AM, sunset 7:21 PM
September 30
sunrise 6:43 AM, sunset 6:30 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00190998 (Buffumville Lake), public domain. Records: NOAA GHCN-Daily, station USC00379423, 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.