Delavan climate

Delavan Weather in August

NOAA 1991-2020 normals for Delavan Wwtp, 1.4 km from Delavan

Average highs run from 83°F on August 1 to 79°F on August 31, and lows from 61°F to 56°F. Normal precipitation for the month is 3.87 in.

August 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.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
81°F
Average low
59°F
Precipitation
3.87 in
Record high
102°FAug 2, 1988
Record low
35°FAug 30, 1999
Chance of a freeze
0%
Days of 90°F or more
2.5
Daylight
14 h 28 min to 13 h 11 min
Cloud cover
52%
Humidity
76%
Dew point
62°F
Wind
7.8 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
Aug 183°F61°F95°F 200648°F 19900%
Aug 283°F61°F102°F 198849°F 20190%
Aug 383°F61°F99°F 198849°F 19760%
Aug 483°F61°F100°F 198846°F 19720%
Aug 583°F61°F98°F 198844°F 19720%
Aug 683°F61°F91°F 196545°F 19920%
Aug 782°F61°F95°F 196846°F 19900%
Aug 882°F60°F96°F 198845°F 19760%
Aug 982°F60°F96°F 198343°F 19640%
Aug 1082°F60°F95°F 200548°F 19720%
Aug 1182°F60°F94°F 195846°F 19670%
Aug 1282°F60°F94°F 198842°F 19670%
Aug 1382°F60°F94°F 198840°F 19670%
Aug 1482°F60°F93°F 196540°F 19640%
Aug 1581°F59°F94°F 198840°F 19640%
Aug 1681°F59°F96°F 200040°F 19790%
Aug 1781°F59°F101°F 198843°F 19790%
Aug 1881°F59°F100°F 198842°F 19620%
Aug 1981°F59°F96°F 195545°F 19530%
Aug 2081°F58°F99°F 195544°F 19530%
Aug 2181°F58°F100°F 195543°F 20040%
Aug 2280°F58°F94°F 200343°F 20040%
Aug 2380°F58°F94°F 196844°F 19520%
Aug 2480°F58°F95°F 196245°F 19520%
Aug 2580°F57°F94°F 202339°F 19580%
Aug 2680°F57°F94°F 200341°F 19640%
Aug 2779°F57°F96°F 195344°F 19680%
Aug 2879°F57°F96°F 197340°F 19680%
Aug 2979°F56°F95°F 195341°F 19650%
Aug 3079°F56°F96°F 198435°F 19990%
Aug 3179°F56°F96°F 195340°F 20090%

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.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

August 1
sunrise 5:47 AM, sunset 8:15 PM
August 31
sunrise 6:19 AM, sunset 7:30 PM

Every day of August: 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 USC00471205, 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.