Harrison County climate

Harrison County Weather in September

NOAA 1991-2020 normals for Cynthiana, 7.6 km from Harrison County

Average highs run from 84°F on September 1 to 76°F on September 30, and lows from 60°F to 50°F. Normal precipitation for the month is 3.53 in over about 7 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 Harrison County, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
80°F
Average low
55°F
Precipitation
3.53 in
Record high
100°FSep 11, 1983
Record low
33°FSep 23, 1982
Chance of a freeze
0%
Days of 90°F or more
4.0
Daylight
13 h 00 min to 11 h 50 min
Cloud cover
49%
Humidity
67%
Dew point
55°F
Wind
4.3 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 184°F60°F97°F 198346°F 198724%0%
Sep 284°F60°F97°F 201145°F 198724%0%
Sep 384°F60°F98°F 198445°F 198724%0%
Sep 484°F59°F98°F 201144°F 198224%0%
Sep 584°F59°F98°F 202643°F 198224%0%
Sep 683°F59°F97°F 200743°F 198223%0%
Sep 783°F58°F97°F 200241°F 198823%0%
Sep 883°F58°F98°F 200245°F 202423%0%
Sep 983°F58°F98°F 200243°F 202423%0%
Sep 1082°F57°F96°F 200243°F 198623%0%
Sep 1182°F57°F100°F 198344°F 199823%0%
Sep 1282°F57°F98°F 198345°F 198023%0%
Sep 1381°F56°F94°F 199945°F 198523%0%
Sep 1481°F56°F97°F 198440°F 198523%0%
Sep 1581°F56°F94°F 199841°F 198523%0%
Sep 1680°F55°F94°F 202638°F 198422%0%
Sep 1780°F55°F93°F 201641°F 198522%0%
Sep 1880°F55°F90°F 200536°F 198922%0%
Sep 1980°F54°F93°F 198336°F 198922%0%
Sep 2079°F54°F93°F 202540°F 198222%0%
Sep 2179°F53°F93°F 202440°F 198222%0%
Sep 2279°F53°F93°F 198436°F 198222%0%
Sep 2378°F53°F94°F 200733°F 198222%0%
Sep 2478°F52°F95°F 200733°F 198322%0%
Sep 2577°F52°F93°F 200734°F 198122%0%
Sep 2677°F51°F89°F 198637°F 198522%0%
Sep 2777°F51°F92°F 198638°F 198222%0%
Sep 2876°F51°F93°F 201937°F 199122%0%
Sep 2976°F50°F93°F 201935°F 198122%0%
Sep 3076°F50°F94°F 201935°F 198122%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Harrison County, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

September 1
sunrise 7:07 AM, sunset 8:07 PM
September 30
sunrise 7:32 AM, sunset 7:22 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00151998 (Cynthiana), public domain. Records: NOAA GHCN-Daily, station USC00151998, 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.