Cedarburg climate

Cedarburg Weather in September

NOAA 1991-2020 normals for Grafton Wwtp, 2.9 km from Cedarburg

Average highs run from 77°F on September 1 to 68°F on September 30, and lows from 58°F to 49°F. Normal precipitation for the month is 3.18 in.

September day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Cedarburg, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
73°F
Average low
54°F
Precipitation
3.18 in
Record high
93°FSep 4, 2023
Record low
32°FSep 30, 2009
Chance of a freeze
2%
Daylight
13 h 11 min to 11 h 47 min
Cloud cover
60%
Humidity
75%
Dew point
53°F
Wind
10.3 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 177°F58°F87°F 201243°F 20090%
Sep 276°F58°F89°F 202643°F 20090%
Sep 376°F58°F87°F 201145°F 20090%
Sep 476°F57°F93°F 202341°F 20250%
Sep 576°F57°F91°F 202345°F 20110%
Sep 675°F57°F89°F 202343°F 20110%
Sep 775°F57°F91°F 201641°F 20240%
Sep 875°F56°F83°F 201343°F 20240%
Sep 975°F56°F83°F 202244°F 20170%
Sep 1074°F56°F84°F 201344°F 20170%
Sep 1174°F56°F92°F 201343°F 20170%
Sep 1274°F55°F84°F 201240°F 20140%
Sep 1374°F55°F86°F 201238°F 20140%
Sep 1473°F55°F83°F 200942°F 20130%
Sep 1573°F54°F84°F 200935°F 20110%
Sep 1673°F54°F86°F 202435°F 20110%
Sep 1772°F54°F86°F 201739°F 20130%
Sep 1872°F53°F87°F 201842°F 20120%
Sep 1972°F53°F85°F 202534°F 20120%
Sep 2071°F53°F86°F 202438°F 20200%
Sep 2171°F52°F84°F 201741°F 20200%
Sep 2271°F52°F86°F 202438°F 20120%
Sep 2370°F52°F92°F 201735°F 20120%
Sep 2470°F51°F92°F 201736°F 20120%
Sep 2570°F51°F89°F 201742°F 20110%
Sep 2669°F51°F89°F 201742°F 20120%
Sep 2769°F50°F84°F 201737°F 20120%
Sep 2868°F50°F82°F 202536°F 20220%
Sep 2968°F49°F79°F 201334°F 20180%
Sep 3068°F49°F84°F 202532°F 20090%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Cedarburg, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 6:16 AM, sunset 7:27 PM
September 30
sunrise 6:48 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 USC00473198 (Grafton Wwtp), public domain. Records: NOAA GHCN-Daily, station USC00479052, 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.