Crooks climate

Crooks Weather in September

NOAA 1991-2020 normals for Sioux Falls, 10.8 km from Crooks

Average highs run from 80°F on September 1 to 70°F on September 30, and lows from 58°F to 46°F. Normal precipitation for the month is 2.73 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 Crooks, 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
52°F
Precipitation
2.73 in
Record high
101°FSep 2, 2023
Record low
30°FSep 23, 2012
Chance of a freeze
30%
Days of 90°F or more
1.3
Daylight
13 h 12 min to 11 h 46 min
Cloud cover
48%
Humidity
63%
Dew point
49°F
Wind
11.2 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°F58°F94°F 202255°F 201628%0%
Sep 280°F57°F101°F 202355°F 201428%0%
Sep 380°F57°F97°F 202349°F 202528%0%
Sep 479°F57°F99°F 202346°F 202528%0%
Sep 579°F56°F91°F 202643°F 201128%0%
Sep 679°F56°F90°F 202141°F 202528%0%
Sep 779°F56°F89°F 202238°F 202528%0%
Sep 878°F55°F94°F 202243°F 202028%0%
Sep 978°F55°F85°F 202441°F 202028%0%
Sep 1078°F54°F89°F 201241°F 202028%0%
Sep 1178°F54°F97°F 201244°F 201528%0%
Sep 1277°F54°F89°F 202541°F 201428%0%
Sep 1377°F53°F91°F 202540°F 201428%
Sep 1477°F53°F91°F 202238°F 201128%
Sep 1576°F52°F92°F 201832°F 201128%
Sep 1676°F52°F93°F 202141°F 201427%
Sep 1776°F52°F88°F 201941°F 201727%
Sep 1875°F51°F86°F 202336°F 201227%
Sep 1975°F51°F88°F 202141°F 201527%
Sep 2074°F50°F94°F 202245°F 201227%
Sep 2174°F50°F90°F 201641°F 201127%
Sep 2274°F49°F93°F 201733°F 201227%
Sep 2373°F49°F88°F 201630°F 201227%
Sep 2473°F48°F83°F 201740°F 201127%
Sep 2572°F48°F85°F 202539°F 201127%
Sep 2672°F47°F91°F 202136°F 201227%
Sep 2771°F47°F88°F 202434°F 201227%
Sep 2871°F47°F90°F 202437°F 202227%
Sep 2970°F46°F92°F 202536°F 201827%
Sep 3070°F46°F92°F 202338°F 201127%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Crooks, 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 6:51 AM, sunset 8:03 PM
September 30
sunrise 7:24 AM, sunset 7:10 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00014944 (Sioux Falls), public domain. Records: NOAA GHCN-Daily, station USC00397666, 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.