Harrison climate

Harrison Weather in September

NOAA 1991-2020 normals for Harrison, 0.2 km from Harrison

Average highs run from 80°F on September 1 to 67°F on September 30, and lows from 48°F to 37°F. Normal precipitation for the month is 1.35 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, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
74°F
Average low
43°F
Precipitation
1.35 in
Snowfall
0.9 in
Record high
106°FSep 5, 2020
Record low
27°FSep 25, 2000
Chance of a freeze
80%
Days of 90°F or more
1.8
Daylight
13 h 09 min to 11 h 46 min
Cloud cover
46%
Humidity
49%
Dew point
40°F
Wind
10.3 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 180°F48°F102°F 201236°F 200522%0%
Sep 279°F48°F101°F 202335°F 200622%1%
Sep 379°F48°F101°F 202435°F 201022%1%
Sep 479°F47°F101°F 200139°F 201022%1%
Sep 578°F47°F106°F 202035°F 202522%1%
Sep 678°F47°F102°F 202230°F 202522%1%
Sep 778°F46°F102°F 202234°F 201022%1%
Sep 877°F46°F97°F 200533°F 202022%1%
Sep 977°F46°F99°F 202134°F 200122%1%
Sep 1077°F45°F104°F 202130°F 202023%1%
Sep 1176°F45°F99°F 202135°F 202223%1%
Sep 1276°F44°F98°F 201836°F 202223%1%
Sep 1375°F44°F95°F 201536°F 200723%1%
Sep 1475°F44°F97°F 201527°F 200723%1%
Sep 1574°F43°F97°F 201837°F 200823%1%
Sep 1674°F43°F97°F 200036°F 201023%1%
Sep 1774°F43°F100°F 200033°F 200623%1%
Sep 1873°F42°F98°F 202132°F 200623%2%
Sep 1973°F42°F95°F 202227°F 200623%2%
Sep 2072°F41°F96°F 201032°F 201323%2%
Sep 2172°F41°F94°F 201332°F 201123%2%
Sep 2271°F40°F95°F 200728°F 201123%2%
Sep 2370°F40°F95°F 201832°F 200023%2%
Sep 2470°F40°F94°F 202029°F 200023%2%
Sep 2569°F39°F93°F 202427°F 200023%2%
Sep 2669°F39°F99°F 202431°F 201822%2%
Sep 2768°F38°F96°F 202131°F 200622%2%
Sep 2868°F38°F97°F 202427°F 200622%2%
Sep 2967°F38°F98°F 202432°F 200822%2%
Sep 3067°F37°F89°F 200530°F 201122%3%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Harrison, 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 (MDT).

September 1
sunrise 6:21 AM, sunset 7:30 PM
September 30
sunrise 6:52 AM, sunset 6:38 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00253615 (Harrison), public domain. Records: NOAA GHCN-Daily, station USW00024017, 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.