Greenleaf climate

Greenleaf Weather in September

NOAA 1991-2020 normals for Brillion, 16.9 km from Greenleaf

Average highs run from 77°F on September 1 to 66°F on September 30, and lows from 53°F to 44°F. Normal precipitation for the month is 3.13 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 Greenleaf, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
72°F
Average low
49°F
Precipitation
3.13 in
Record high
93°FSep 3, 2023
Record low
33°FSep 15, 2007
Chance of a freeze
28%
Days of 90°F or more
0.6
Daylight
13 h 13 min to 11 h 46 min
Cloud cover
59%
Humidity
76%
Dew point
53°F
Wind
10.5 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 177°F53°F91°F 202643°F 200932%0%
Sep 276°F53°F90°F 200845°F 200933%0%
Sep 376°F53°F93°F 202345°F 200933%0%
Sep 476°F53°F91°F 202342°F 202533%0%
Sep 576°F52°F92°F 200742°F 201033%0%
Sep 675°F52°F88°F 201540°F 201133%0%
Sep 775°F52°F85°F 202242°F 202533%0%
Sep 875°F51°F83°F 202243°F 201734%0%
Sep 975°F51°F83°F 202641°F 200834%0%
Sep 1074°F51°F89°F 200542°F 200734%0%
Sep 1174°F51°F90°F 200539°F 202034%0%
Sep 1274°F50°F88°F 200540°F 200734%0%
Sep 1373°F50°F87°F 200539°F 201434%0%
Sep 1473°F50°F86°F 200437°F 200734%0%
Sep 1573°F49°F87°F 202433°F 200734%0%
Sep 1672°F49°F87°F 202438°F 200735%0%
Sep 1772°F49°F88°F 201841°F 201135%0%
Sep 1871°F48°F84°F 200735°F 201235%0%
Sep 1971°F48°F85°F 202134°F 201235%0%
Sep 2071°F48°F82°F 200537°F 200635%0%
Sep 2170°F47°F88°F 200535°F 200635%0%
Sep 2270°F47°F89°F 201737°F 201235%0%
Sep 2369°F47°F89°F 201736°F 201235%0%
Sep 2469°F46°F89°F 201736°F 201235%0%
Sep 2569°F46°F89°F 201741°F 200635%0%
Sep 2668°F46°F82°F 200839°F 200636%0%
Sep 2768°F45°F83°F 202537°F 201036%0%
Sep 2867°F45°F80°F 201535°F 201236%0%
Sep 2967°F44°F83°F 202534°F 200436%0%
Sep 3066°F44°F83°F 201933°F 200936%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Greenleaf, 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 (CDT).

September 1
sunrise 6:15 AM, sunset 7:28 PM
September 30
sunrise 6:49 AM, sunset 6:35 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00471064 (Brillion), public domain. Records: NOAA GHCN-Daily, station USC00473268, 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.