Sioux County climate

Sioux County Weather in October

NOAA 1991-2020 normals for Agate 3 E, 7.3 km from Sioux County

Average highs run from 73°F on October 1 to 58°F on October 31, and lows from 35°F to 23°F. Normal precipitation for the month is 1.12 in over about 6 wet days.

October day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Sioux County, in °F, with the record for each date.-250255075100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
65°F
Average low
29°F
Precipitation
1.12 in
Snowfall
2.4 in
Record high
92°FOct 3, 2025
Record low
-11°FOct 27, 2020
Chance of a freeze
100%
Daylight
11 h 44 min to 10 h 21 min
Cloud cover
55%
Humidity
57%
Dew point
30°F
Wind
11.4 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
Oct 173°F35°F91°F 200529°F 200321%2%
Oct 272°F34°F90°F 200530°F 199921%2%
Oct 372°F34°F92°F 202521°F 200921%2%
Oct 471°F33°F88°F 202426°F 199921%2%
Oct 571°F33°F87°F 202125°F 200020%2%
Oct 670°F32°F85°F 199921°F 200520%3%
Oct 770°F32°F85°F 200319°F 201220%3%
Oct 869°F32°F88°F 202019°F 200020%3%
Oct 969°F31°F90°F 200318°F 200920%3%
Oct 1068°F31°F88°F 201516°F 200920%3%
Oct 1167°F30°F88°F 199917°F 201920%3%
Oct 1267°F30°F81°F 200319°F 201919%3%
Oct 1366°F30°F81°F 199921°F 200219%3%
Oct 1466°F29°F83°F 199913°F 201819%4%
Oct 1565°F29°F85°F 20116°F 201819%4%
Oct 1665°F28°F81°F 202421°F 202019%4%
Oct 1764°F28°F86°F 200313°F 199919%4%
Oct 1864°F28°F86°F 200321°F 200618%4%
Oct 1963°F27°F88°F 200323°F 200218%4%
Oct 2063°F27°F83°F 202224°F 200218%5%
Oct 2162°F26°F83°F 200321°F 200618%5%
Oct 2262°F26°F84°F 200322°F 200618%5%
Oct 2361°F26°F88°F 200316°F 200617%5%
Oct 2461°F25°F78°F 199917°F 202017%5%
Oct 2561°F25°F83°F 20176°F 202017%6%
Oct 2660°F25°F80°F 2024-9°F 202017%6%
Oct 2760°F24°F84°F 2016-11°F 202017%6%
Oct 2859°F24°F78°F 20016°F 201916%6%
Oct 2959°F24°F79°F 20184°F 201916%6%
Oct 3058°F23°F75°F 2001-1°F 201916%6%
Oct 3158°F23°F81°F 19999°F 201716%6%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Sioux 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 (MDT).

October 1
sunrise 6:52 AM, sunset 6:36 PM
October 31
sunrise 7:28 AM, sunset 5:49 PM

Every day of October: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00250030 (Agate 3 E), public domain. Records: NOAA GHCN-Daily, station USW00094053, 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.