Frederick climate

Frederick Weather in September

NOAA 1991-2020 normals for Tipton 4S Mesonet, 12.2 km from Frederick

Average highs run from 92°F on September 1 to 83°F on September 30, and lows from 68°F to 58°F. Normal precipitation for the month is 2.62 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 Frederick, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
88°F
Average low
63°F
Precipitation
2.62 in
Record high
111°FSep 8, 2023
Record low
38°FSep 29, 2020
Chance of a freeze
0%
Days of 90°F or more
15.0
Daylight
12 h 53 min to 11 h 51 min
Cloud cover
42%
Humidity
60%
Dew point
59°F
Wind
9.4 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 192°F68°F107°F 195252°F 19550%
Sep 292°F67°F105°F 194754°F 19520%
Sep 391°F67°F104°F 194750°F 19740%
Sep 491°F67°F106°F 202350°F 19530%
Sep 591°F67°F105°F 194751°F 19530%
Sep 691°F66°F105°F 194748°F 20110%
Sep 790°F66°F107°F 202351°F 19740%
Sep 890°F66°F111°F 202349°F 19570%
Sep 990°F65°F100°F 197048°F 19410%
Sep 1089°F65°F99°F 197046°F 19620%
Sep 1189°F65°F102°F 196346°F 19590%
Sep 1289°F64°F104°F 201147°F 19590%
Sep 1389°F64°F107°F 201141°F 19450%
Sep 1488°F64°F104°F 196547°F 19590%
Sep 1588°F63°F103°F 195645°F 19610%
Sep 1688°F63°F103°F 196548°F 19510%
Sep 1787°F63°F98°F 197248°F 19510%
Sep 1887°F62°F102°F 195244°F 19680%
Sep 1987°F62°F101°F 195245°F 19420%
Sep 2087°F62°F103°F 195344°F 19710%
Sep 2186°F61°F101°F 194447°F 19390%
Sep 2286°F61°F99°F 195644°F 20210%
Sep 2386°F61°F106°F 202344°F 19750%
Sep 2485°F60°F97°F 193943°F 19570%
Sep 2585°F60°F97°F 193842°F 19750%
Sep 2685°F60°F105°F 195339°F 19420%
Sep 2784°F59°F105°F 195341°F 19420%
Sep 2884°F59°F107°F 195339°F 19670%
Sep 2983°F58°F103°F 195338°F 20200%
Sep 3083°F58°F97°F 193842°F 19390%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Frederick, 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 7:09 AM, sunset 8:02 PM
September 30
sunrise 7:30 AM, sunset 7:21 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00348879 (Tipton 4S Mesonet), public domain. Records: NOAA GHCN-Daily, station USC00348879, 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.