Defiance County climate

Defiance County Weather in September

NOAA 1991-2020 normals for Defiance Mem AP, 5.3 km from Defiance County

Average highs run from 79°F on September 1 to 70°F on September 30, and lows from 58°F to 47°F. Normal precipitation for the month is 2.67 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 Defiance County, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
75°F
Average low
53°F
Precipitation
2.67 in
Record high
98°FSep 10, 2013
Record low
33°FSep 24, 2012
Chance of a freeze
9%
Days of 90°F or more
2.1
Daylight
13 h 07 min to 11 h 47 min
Cloud cover
51%
Humidity
72%
Dew point
54°F
Wind
8.5 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 179°F58°F93°F 201045°F 200934%0%
Sep 279°F57°F97°F 201146°F 200934%0%
Sep 379°F57°F96°F 201146°F 202434%0%
Sep 479°F57°F92°F 199948°F 202434%0%
Sep 579°F56°F93°F 201445°F 201034%0%
Sep 678°F56°F91°F 199844°F 200034%0%
Sep 778°F56°F92°F 200241°F 202534%0%
Sep 878°F55°F92°F 200240°F 202434%0%
Sep 978°F55°F92°F 201344°F 199833%0%
Sep 1077°F55°F98°F 201340°F 201733%0%
Sep 1177°F54°F97°F 201345°F 200833%0%
Sep 1277°F54°F90°F 199944°F 200733%0%
Sep 1377°F54°F90°F 200545°F 200733%0%
Sep 1476°F53°F91°F 202140°F 201333%0%
Sep 1576°F53°F89°F 202440°F 200733%0%
Sep 1676°F52°F86°F 202435°F 200733%0%
Sep 1775°F52°F89°F 202141°F 200733%0%
Sep 1875°F52°F90°F 201842°F 199933%0%
Sep 1974°F51°F90°F 200237°F 201233%0%
Sep 2074°F51°F91°F 201839°F 202033%0%
Sep 2174°F51°F92°F 201036°F 200633%0%
Sep 2273°F50°F92°F 201734°F 199933%0%
Sep 2373°F50°F93°F 201039°F 201233%0%
Sep 2473°F49°F91°F 200733°F 201233%0%
Sep 2572°F49°F90°F 201740°F 199933%0%
Sep 2672°F49°F91°F 199837°F 200033%0%
Sep 2771°F48°F88°F 199944°F 200033%0%
Sep 2871°F48°F89°F 199941°F 200133%0%
Sep 2970°F47°F86°F 202536°F 200033%0%
Sep 3070°F47°F88°F 201936°F 200933%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Defiance County, 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 7:04 AM, sunset 8:11 PM
September 30
sunrise 7:34 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 USW00004851 (Defiance Mem AP), public domain. Records: NOAA GHCN-Daily, station USW00004851, 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.