Saylorville climate

Saylorville Weather in September

NOAA 1991-2020 normals for Ankeny, 6.1 km from Saylorville

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 3.62 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 Saylorville, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
77°F
Average low
53°F
Precipitation
3.62 in
Record high
100°FSep 10, 2013
Record low
22°FSep 21, 1999
Chance of a freeze
11%
Days of 90°F or more
2.6
Daylight
13 h 07 min to 11 h 48 min
Cloud cover
47%
Humidity
68%
Dew point
53°F
Wind
9.8 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°F98°F 200040°F 199928%0%
Sep 281°F58°F99°F 201142°F 199928%0%
Sep 381°F58°F98°F 200037°F 197428%0%
Sep 481°F57°F98°F 200039°F 197428%0%
Sep 580°F57°F97°F 195238°F 196228%0%
Sep 680°F57°F96°F 198540°F 196228%0%
Sep 780°F56°F98°F 197838°F 195628%0%
Sep 880°F56°F96°F 198342°F 198628%0%
Sep 979°F56°F99°F 195538°F 199528%0%
Sep 1079°F55°F100°F 201340°F 197628%0%
Sep 1179°F55°F96°F 201338°F 195528%0%
Sep 1279°F54°F98°F 200036°F 195528%0%
Sep 1378°F54°F93°F 201135°F 201428%0%
Sep 1478°F54°F92°F 200034°F 199628%0%
Sep 1578°F53°F96°F 195533°F 200728%0%
Sep 1677°F53°F94°F 195533°F 200728%0%
Sep 1777°F53°F93°F 195336°F 198028%0%
Sep 1877°F52°F94°F 195532°F 199928%0%
Sep 1976°F52°F94°F 200035°F 199128%0%
Sep 2076°F51°F90°F 197232°F 199128%0%
Sep 2176°F51°F91°F 200522°F 199928%0%
Sep 2275°F50°F93°F 200526°F 199927%0%
Sep 2375°F50°F91°F 201729°F 198327%0%
Sep 2474°F50°F91°F 201729°F 198927%0%
Sep 2574°F49°F91°F 201731°F 198927%0%
Sep 2674°F49°F88°F 199828°F 198427%0%
Sep 2773°F48°F91°F 195634°F 198927%0%
Sep 2873°F48°F97°F 195330°F 195127%0%
Sep 2972°F48°F95°F 195327°F 198427%0%
Sep 3072°F47°F92°F 195229°F 197227%0%

Chance of rain

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

September 1
sunrise 6:41 AM, sunset 7:48 PM
September 30
sunrise 7:10 AM, sunset 6:58 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00130241 (Ankeny), public domain. Records: NOAA GHCN-Daily, station USC00130241, 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.