Jay County climate

Jay County Weather in September

NOAA 1991-2020 normals for Portland 1 Sw, 2.5 km from Jay County

Average highs run from 80°F on September 1 to 71°F on September 30, and lows from 57°F to 47°F. Normal precipitation for the month is 2.97 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 Jay County, 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
2.97 in
Record high
96°FSep 1, 2024
Record low
28°FSep 23, 1995
Chance of a freeze
8%
Days of 90°F or more
1.6
Daylight
13 h 05 min to 11 h 48 min
Cloud cover
50%
Humidity
71%
Dew point
54°F
Wind
8.3 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°F57°F96°F 202443°F 200922%0%
Sep 280°F57°F95°F 201144°F 199422%0%
Sep 380°F57°F96°F 201144°F 199422%0%
Sep 480°F56°F96°F 201138°F 199722%0%
Sep 580°F56°F92°F 199941°F 199722%0%
Sep 679°F56°F91°F 199940°F 197622%0%
Sep 779°F55°F92°F 199040°F 198822%0%
Sep 879°F55°F92°F 198537°F 202423%0%
Sep 979°F55°F91°F 199938°F 202423%0%
Sep 1079°F54°F92°F 198341°F 198623%0%
Sep 1178°F54°F96°F 198337°F 199523%0%
Sep 1278°F54°F95°F 201338°F 199523%0%
Sep 1378°F53°F89°F 199940°F 197023%0%
Sep 1477°F53°F94°F 199138°F 198523%0%
Sep 1577°F53°F91°F 199138°F 198523%0%
Sep 1677°F52°F91°F 199138°F 198423%0%
Sep 1776°F52°F89°F 197037°F 198423%0%
Sep 1876°F52°F88°F 202137°F 202023%0%
Sep 1976°F51°F91°F 201837°F 202023%0%
Sep 2075°F51°F90°F 198334°F 199124%0%
Sep 2175°F50°F90°F 202433°F 199124%0%
Sep 2275°F50°F92°F 201732°F 199124%0%
Sep 2374°F50°F91°F 201728°F 199524%0%
Sep 2474°F49°F91°F 201029°F 198325%0%
Sep 2573°F49°F92°F 200729°F 198325%0%
Sep 2673°F49°F91°F 201734°F 198925%0%
Sep 2773°F48°F90°F 199835°F 199125%0%
Sep 2872°F48°F88°F 199833°F 198925%0%
Sep 2972°F47°F88°F 199833°F 198925%0%
Sep 3071°F47°F89°F 201931°F 199325%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Jay County, 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 7:07 AM, sunset 8:12 PM
September 30
sunrise 7:36 AM, sunset 7:24 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00127069 (Portland 1 Sw), public domain. Records: NOAA GHCN-Daily, station USC00127069, 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.