Blanchester climate

Blanchester Weather in September

NOAA 1991-2020 normals for WFO Wilmington, 20.3 km from Blanchester

Average highs run from 83°F on September 1 to 74°F on September 30, and lows from 59°F to 50°F. Normal precipitation for the month is 3.03 in over about 9 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 Blanchester, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
79°F
Average low
55°F
Precipitation
3.03 in
Record high
98°FSep 5, 1954
Record low
34°FSep 24, 2012
Chance of a freeze
2%
Days of 90°F or more
2.2
Daylight
13 h 02 min to 11 h 49 min
Cloud cover
49%
Humidity
68%
Dew point
54°F
Wind
7.6 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 183°F59°F96°F 195345°F 196729%0%
Sep 283°F59°F97°F 201144°F 196729%0%
Sep 382°F58°F97°F 201146°F 199829%0%
Sep 482°F58°F96°F 202645°F 201029%0%
Sep 582°F58°F98°F 195442°F 201029%0%
Sep 682°F58°F97°F 195447°F 201729%0%
Sep 781°F57°F93°F 201043°F 202529%0%
Sep 881°F57°F94°F 200242°F 199829%0%
Sep 981°F57°F97°F 195541°F 199829%0%
Sep 1081°F57°F93°F 201341°F 199829%0%
Sep 1180°F56°F91°F 201342°F 199929%0%
Sep 1280°F56°F91°F 201944°F 195529%0%
Sep 1380°F56°F91°F 201940°F 195329%0%
Sep 1480°F55°F93°F 199840°F 195329%0%
Sep 1579°F55°F89°F 195442°F 199929%0%
Sep 1679°F55°F91°F 202639°F 201129%0%
Sep 1779°F54°F91°F 195540°F 195929%0%
Sep 1878°F54°F91°F 195340°F 195929%0%
Sep 1978°F54°F91°F 202438°F 201229%0%
Sep 2078°F53°F92°F 202439°F 195629%0%
Sep 2177°F53°F94°F 202439°F 199929%0%
Sep 2277°F53°F93°F 202435°F 199929%0%
Sep 2376°F52°F94°F 201036°F 201229%0%
Sep 2476°F52°F94°F 200734°F 201229%0%
Sep 2576°F52°F92°F 200738°F 196530%0%
Sep 2675°F51°F90°F 201740°F 196530%0%
Sep 2775°F51°F89°F 201738°F 200030%0%
Sep 2874°F51°F89°F 195938°F 195730%0%
Sep 2974°F50°F95°F 195337°F 200030%0%
Sep 3074°F50°F91°F 195334°F 194930%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Blanchester, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

September 1
sunrise 7:05 AM, sunset 8:07 PM
September 30
sunrise 7:31 AM, sunset 7:20 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00339220 (WFO Wilmington), public domain. Records: NOAA GHCN-Daily, station USW00013841, 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.