Orange County climate

Orange County Weather in September

NOAA 1991-2020 normals for Paoli, 1.7 km from Orange County

Average highs run from 84°F on September 1 to 75°F on September 30, and lows from 59°F to 48°F. Normal precipitation for the month is 3.86 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 Orange 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
54°F
Precipitation
3.86 in
Record high
101°FSep 4, 2011
Record low
33°FSep 25, 1965
Chance of a freeze
2%
Days of 90°F or more
3.2
Daylight
13 h 01 min to 11 h 49 min
Cloud cover
48%
Humidity
67%
Dew point
56°F
Wind
5.4 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°F59°F96°F 201346°F 196721%0%
Sep 284°F59°F98°F 201146°F 196521%0%
Sep 384°F59°F99°F 201147°F 196721%0%
Sep 483°F59°F101°F 201143°F 197421%0%
Sep 583°F58°F99°F 199943°F 201021%0%
Sep 683°F58°F98°F 200744°F 198820%0%
Sep 783°F58°F95°F 201540°F 198820%0%
Sep 882°F57°F96°F 196041°F 201720%0%
Sep 982°F57°F97°F 200235°F 202420%0%
Sep 1082°F56°F97°F 198336°F 202420%0%
Sep 1181°F56°F96°F 200242°F 197620%0%
Sep 1281°F56°F94°F 198343°F 196920%0%
Sep 1381°F55°F93°F 199136°F 197520%0%
Sep 1480°F55°F94°F 199137°F 196420%0%
Sep 1580°F54°F92°F 199139°F 197421%0%
Sep 1680°F54°F93°F 199140°F 196121%0%
Sep 1779°F54°F93°F 195540°F 201421%0%
Sep 1879°F53°F93°F 195540°F 201421%0%
Sep 1979°F53°F94°F 195537°F 201221%0%
Sep 2078°F52°F94°F 195536°F 199121%0%
Sep 2178°F52°F94°F 201836°F 196221%0%
Sep 2277°F51°F97°F 201035°F 198321%0%
Sep 2377°F51°F95°F 200734°F 197421%0%
Sep 2477°F51°F96°F 200734°F 198322%0%
Sep 2576°F50°F95°F 200733°F 196522%0%
Sep 2676°F50°F95°F 200736°F 196122%0%
Sep 2776°F49°F91°F 201734°F 199122%0%
Sep 2875°F49°F93°F 201933°F 202222%0%
Sep 2975°F48°F93°F 199933°F 202222%0%
Sep 3075°F48°F94°F 201933°F 199321%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Orange 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 7:15 AM, sunset 8:16 PM
September 30
sunrise 7:41 AM, sunset 7:30 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00126705 (Paoli), public domain. Records: NOAA GHCN-Daily, station USC00122309, 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.