Darien climate

Darien Weather in October

NOAA 1991-2020 normals for Delavan Wwtp, 5.4 km from Darien

Average highs run from 69°F on October 1 to 53°F on October 31, and lows from 46°F to 34°F. Normal precipitation for the month is 2.89 in.

October day by day

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

Normal daily high and low temperature at Darien, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
61°F
Average low
40°F
Precipitation
2.89 in
Snowfall
0.1 in
Record high
89°FOct 4, 2025
Record low
14°FOct 29, 1988
Chance of a freeze
95%
Daylight
11 h 44 min to 10 h 22 min
Cloud cover
62%
Humidity
77%
Dew point
42°F
Wind
10.7 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 169°F46°F88°F 202129°F 20030%
Oct 268°F45°F88°F 202124°F 20030%
Oct 368°F45°F85°F 200625°F 20030%
Oct 467°F45°F89°F 202527°F 19890%
Oct 567°F44°F88°F 200527°F 20040%
Oct 666°F44°F88°F 199727°F 20040%
Oct 766°F43°F88°F 200724°F 19870%
Oct 865°F43°F88°F 200724°F 19870%
Oct 965°F42°F85°F 200726°F 20000%
Oct 1064°F42°F88°F 201027°F 19870%
Oct 1164°F42°F83°F 201024°F 19870%
Oct 1263°F41°F83°F 201022°F 19880%
Oct 1362°F41°F83°F 199522°F 19880%
Oct 1462°F40°F80°F 199527°F 19930%
Oct 1561°F40°F82°F 198926°F 20060%
Oct 1661°F39°F81°F 199926°F 20060%
Oct 1760°F39°F79°F 199828°F 19891%
Oct 1860°F39°F83°F 201624°F 19921%
Oct 1959°F38°F77°F 202519°F 19921%
Oct 2059°F38°F78°F 200020°F 19921%
Oct 2158°F37°F80°F 200323°F 20181%
Oct 2258°F37°F80°F 202424°F 19871%
Oct 2357°F37°F79°F 202226°F 20131%
Oct 2457°F36°F78°F 199122°F 19871%
Oct 2556°F36°F81°F 202322°F 19991%
Oct 2656°F35°F78°F 198924°F 20061%
Oct 2755°F35°F75°F 199826°F 19871%
Oct 2855°F35°F76°F 201423°F 19881%
Oct 2954°F34°F72°F 198914°F 19882%
Oct 3054°F34°F82°F 202418°F 19882%
Oct 3153°F34°F76°F 202424°F 19962%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Darien, in percent, and of at least 0.1 inch of snowfall.00.511.521102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

October 1
sunrise 6:52 AM, sunset 6:36 PM
October 31
sunrise 7:27 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 USC00472051 (Delavan Wwtp), public domain. Records: NOAA GHCN-Daily, station USC00470045, 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.