Delavan climate

Delavan Weather in October

NOAA 1991-2020 normals for Mason City 4SE, 24.8 km from Delavan

Average highs run from 73°F on October 1 to 58°F on October 31, and lows from 48°F to 37°F. Normal precipitation for the month is 3.33 in over about 9 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 Delavan, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
66°F
Average low
43°F
Precipitation
3.33 in
Record high
95°FOct 2, 1953
Record low
7°FOct 30, 1925
Chance of a freeze
93%
Daylight
11 h 45 min to 10 h 29 min
Cloud cover
57%
Humidity
72%
Dew point
44°F
Wind
10.5 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°F48°F91°F 192229°F 191225%0%
Oct 273°F48°F95°F 195326°F 200326%0%
Oct 372°F48°F95°F 195426°F 200326%0%
Oct 472°F47°F92°F 192228°F 193526%0%
Oct 571°F47°F90°F 192227°F 202026%0%
Oct 671°F47°F90°F 196324°F 195227%0%
Oct 770°F46°F89°F 196321°F 201227%0%
Oct 870°F46°F90°F 193924°F 195227%0%
Oct 969°F46°F89°F 194922°F 191727%0%
Oct 1069°F45°F87°F 196223°F 201227%0%
Oct 1168°F45°F89°F 196225°F 191628%0%
Oct 1268°F45°F89°F 196221°F 198728%0%
Oct 1367°F44°F86°F 193519°F 191728%0%
Oct 1467°F44°F86°F 201724°F 190928%0%
Oct 1566°F43°F88°F 196325°F 193728%0%
Oct 1666°F43°F86°F 195626°F 202028%0%
Oct 1765°F43°F87°F 193524°F 202428%0%
Oct 1865°F42°F88°F 195320°F 194828%0%
Oct 1964°F42°F86°F 195322°F 197228%0%
Oct 2064°F42°F89°F 199517°F 193028%0%
Oct 2163°F41°F87°F 197916°F 193028%0%
Oct 2263°F41°F86°F 195321°F 193028%0%
Oct 2362°F40°F84°F 196321°F 192428%0%
Oct 2462°F40°F87°F 199218°F 198828%0%
Oct 2561°F40°F82°F 192120°F 201328%0%
Oct 2661°F39°F85°F 196318°F 196228%0%
Oct 2760°F39°F86°F 192718°F 191428%0%
Oct 2860°F38°F87°F 192718°F 192528%0%
Oct 2959°F38°F84°F 193713°F 192528%0%
Oct 3059°F37°F87°F 19507°F 192527%0%
Oct 3158°F37°F85°F 195014°F 192527%1%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Delavan, 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).

October 1
sunrise 6:55 AM, sunset 6:40 PM
October 31
sunrise 7:27 AM, sunset 5:56 PM

Every day of October: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00115413 (Mason City 4SE), public domain. Records: NOAA GHCN-Daily, station USC00115079, 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.