Mount Ayr climate

Mount Ayr Weather in September

NOAA 1991-2020 normals for Mt Ayr, 1.3 km from Mount Ayr

Average highs run from 81°F on September 1 to 72°F on September 30, and lows from 58°F to 47°F. Normal precipitation for the month is 3.71 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 Mount Ayr, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
76°F
Average low
53°F
Precipitation
3.71 in
Record high
100°FSep 7, 2013
Record low
33°FSep 29, 2003
Chance of a freeze
18%
Days of 90°F or more
1.6
Daylight
13 h 05 min to 11 h 47 min
Cloud cover
46%
Humidity
70%
Dew point
55°F
Wind
9.4 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 181°F58°F96°F 202650°F 200924%0%
Sep 280°F58°F97°F 200050°F 202424%0%
Sep 380°F57°F96°F 202651°F 201023%0%
Sep 480°F57°F94°F 202644°F 202523%0%
Sep 580°F57°F95°F 202646°F 200823%0%
Sep 679°F56°F94°F 200244°F 201723%0%
Sep 779°F56°F100°F 201342°F 202523%0%
Sep 879°F56°F97°F 201345°F 200823%0%
Sep 979°F55°F98°F 201342°F 200823%0%
Sep 1078°F55°F96°F 201348°F 199923%0%
Sep 1178°F55°F96°F 200048°F 200723%0%
Sep 1278°F54°F95°F 202540°F 201423%0%
Sep 1377°F54°F95°F 202538°F 201423%0%
Sep 1477°F53°F90°F 201740°F 201123%0%
Sep 1577°F53°F91°F 201736°F 200723%0%
Sep 1677°F53°F91°F 202543°F 199923%0%
Sep 1776°F52°F90°F 200045°F 199922%0%
Sep 1876°F52°F90°F 201841°F 201222%0%
Sep 1976°F52°F90°F 201340°F 200322%0%
Sep 2075°F51°F97°F 202237°F 200622%0%
Sep 2175°F51°F90°F 201735°F 199922%0%
Sep 2275°F50°F90°F 201740°F 201222%0%
Sep 2374°F50°F91°F 201736°F 201222%0%
Sep 2474°F49°F90°F 201739°F 201122%0%
Sep 2573°F49°F88°F 201737°F 200122%0%
Sep 2673°F49°F89°F 202141°F 200022%0%
Sep 2773°F48°F88°F 202141°F 201222%0%
Sep 2872°F48°F89°F 202137°F 202222%0%
Sep 2972°F47°F91°F 200233°F 200322%0%
Sep 3072°F47°F91°F 200239°F 200922%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Mount Ayr, 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 (CDT).

September 1
sunrise 6:44 AM, sunset 7:49 PM
September 30
sunrise 7:13 AM, sunset 7:00 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00135769 (Mt Ayr), public domain. Records: NOAA GHCN-Daily, station USW00094991, 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.