Harmony climate

Harmony Weather in September

NOAA 1991-2020 normals for Greencastle 1 W, 23 km from Harmony

Average highs run from 81°F on September 1 to 72°F on September 30, and lows from 57°F to 47°F. Normal precipitation for the month is 3.67 in over about 8 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 Harmony, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
77°F
Average low
52°F
Precipitation
3.67 in
Record high
98°FSep 2, 2011
Record low
33°FSep 22, 1999
Chance of a freeze
8%
Days of 90°F or more
1.4
Daylight
13 h 02 min to 11 h 48 min
Cloud cover
48%
Humidity
69%
Dew point
55°F
Wind
6.9 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 181°F57°F97°F 201146°F 200926%0%
Sep 281°F57°F98°F 201147°F 200926%0%
Sep 381°F56°F98°F 201148°F 202426%0%
Sep 480°F56°F97°F 202649°F 201026%0%
Sep 580°F56°F95°F 199944°F 201026%0%
Sep 680°F56°F95°F 199843°F 201726%0%
Sep 780°F55°F93°F 201541°F 201726%0%
Sep 880°F55°F94°F 200239°F 202426%0%
Sep 979°F55°F94°F 200240°F 202426%0%
Sep 1079°F54°F97°F 201342°F 199925%0%
Sep 1179°F54°F95°F 201343°F 201725%0%
Sep 1278°F53°F92°F 201945°F 200725%0%
Sep 1378°F53°F92°F 201142°F 201525%0%
Sep 1478°F53°F91°F 199839°F 201425%0%
Sep 1577°F52°F91°F 202538°F 200725%0%
Sep 1677°F52°F90°F 201940°F 200025%0%
Sep 1777°F52°F91°F 201842°F 199925%0%
Sep 1876°F51°F93°F 201842°F 199925%0%
Sep 1976°F51°F93°F 201837°F 202025%0%
Sep 2076°F50°F93°F 201838°F 202025%0%
Sep 2175°F50°F95°F 202240°F 202025%0%
Sep 2275°F50°F94°F 201733°F 199926%0%
Sep 2375°F49°F94°F 201036°F 199926%0%
Sep 2474°F49°F93°F 201734°F 201226%0%
Sep 2574°F49°F92°F 201737°F 200126%0%
Sep 2673°F48°F92°F 201733°F 200126%0%
Sep 2773°F48°F91°F 199838°F 200126%0%
Sep 2873°F47°F92°F 199934°F 202226%0%
Sep 2972°F47°F91°F 202534°F 202226%0%
Sep 3072°F47°F92°F 201935°F 200326%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Harmony, 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 7:17 AM, sunset 8:19 PM
September 30
sunrise 7:44 AM, sunset 7:32 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00123513 (Greencastle 1 W), public domain. Records: NOAA GHCN-Daily, station USW00003868, 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.