Westerville climate

Westerville Weather in September

NOAA 1991-2020 normals for Westerville, 1.3 km from Westerville

Average highs run from 83°F on September 1 to 74°F on September 30, and lows from 61°F to 51°F. Normal precipitation for the month is 3.29 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 Westerville, 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
56°F
Precipitation
3.29 in
Record high
97°FSep 2, 2011
Record low
35°FSep 29, 2000
Chance of a freeze
2%
Days of 90°F or more
2.5
Daylight
13 h 04 min to 11 h 48 min
Cloud cover
52%
Humidity
69%
Dew point
54°F
Wind
7.8 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°F61°F93°F 201046°F 200929%0%
Sep 283°F60°F97°F 201149°F 200929%0%
Sep 383°F60°F96°F 201149°F 199829%0%
Sep 483°F60°F94°F 201850°F 201329%0%
Sep 582°F60°F93°F 202344°F 201029%0%
Sep 682°F59°F95°F 199847°F 201729%0%
Sep 782°F59°F95°F 200242°F 202529%0%
Sep 882°F59°F95°F 200243°F 202529%0%
Sep 981°F58°F95°F 200244°F 202529%0%
Sep 1081°F58°F95°F 201344°F 199829%0%
Sep 1181°F58°F92°F 201946°F 199929%0%
Sep 1281°F57°F91°F 199948°F 200229%0%
Sep 1380°F57°F93°F 201947°F 200729%0%
Sep 1480°F57°F94°F 199842°F 201329%0%
Sep 1580°F56°F90°F 202442°F 200129%0%
Sep 1679°F56°F88°F 202639°F 200730%0%
Sep 1779°F56°F88°F 202142°F 200030%0%
Sep 1879°F55°F90°F 202145°F 199930%0%
Sep 1978°F55°F90°F 202438°F 201230%0%
Sep 2078°F55°F93°F 202441°F 202030%0%
Sep 2178°F54°F94°F 202440°F 200630%0%
Sep 2277°F54°F93°F 202437°F 199930%0%
Sep 2377°F53°F92°F 201038°F 201230%0%
Sep 2476°F53°F91°F 201036°F 201231%0%
Sep 2576°F53°F91°F 200741°F 200631%0%
Sep 2676°F52°F91°F 199842°F 200331%0%
Sep 2775°F52°F90°F 199840°F 200031%0%
Sep 2875°F51°F88°F 199941°F 200031%0%
Sep 2975°F51°F86°F 202535°F 200031%0%
Sep 3074°F51°F90°F 201937°F 200331%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Westerville, 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 6:59 AM, sunset 8:03 PM
September 30
sunrise 7:27 AM, sunset 7:15 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00338951 (Westerville), public domain. Records: NOAA GHCN-Daily, station USW00004804, 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.