Dunkerton climate

Dunkerton Weather in August

NOAA 1991-2020 normals for Waterloo Muni AP, 19.8 km from Dunkerton

Average highs run from 84°F on August 1 to 81°F on August 31, and lows from 63°F to 58°F. Normal precipitation for the month is 4.17 in over about 9 wet days.

August day by day

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

Normal daily high and low temperature at Dunkerton, in °F, with the record for each date.406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
83°F
Average low
61°F
Precipitation
4.17 in
Record high
96°FAug 27, 2024
Record low
44°FAug 31, 2009
Chance of a freeze
0%
Days of 90°F or more
3.0
Daylight
14 h 28 min to 13 h 11 min
Cloud cover
52%
Humidity
74%
Dew point
61°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 184°F63°F91°F 200652°F 200928%0%
Aug 284°F63°F89°F 201249°F 200928%0%
Aug 384°F63°F91°F 201252°F 200928%0%
Aug 484°F63°F91°F 201250°F 201728%0%
Aug 584°F63°F91°F 202350°F 202028%0%
Aug 684°F63°F87°F 201953°F 200928%0%
Aug 784°F63°F93°F 202254°F 201228%0%
Aug 884°F62°F90°F 201254°F 201328%0%
Aug 984°F62°F89°F 202049°F 202428%0%
Aug 1084°F62°F88°F 201048°F 202428%0%
Aug 1184°F62°F90°F 202148°F 202428%0%
Aug 1283°F62°F90°F 202152°F 201328%0%
Aug 1383°F62°F89°F 201052°F 201328%0%
Aug 1483°F62°F88°F 201854°F 202128%0%
Aug 1583°F61°F88°F 201550°F 201328%0%
Aug 1683°F61°F86°F 201554°F 201328%0%
Aug 1783°F61°F86°F 201547°F 201228%0%
Aug 1883°F61°F85°F 201647°F 201228%0%
Aug 1983°F61°F88°F 201649°F 201228%0%
Aug 2083°F61°F89°F 202149°F 201228%0%
Aug 2183°F60°F87°F 202150°F 201228%0%
Aug 2282°F60°F88°F 202047°F 200928%0%
Aug 2382°F60°F90°F 201447°F 200928%0%
Aug 2482°F60°F92°F 202047°F 201528%0%
Aug 2582°F60°F94°F 202047°F 201529%0%
Aug 2682°F59°F94°F 202047°F 201529%0%
Aug 2782°F59°F96°F 202449°F 201529%0%
Aug 2882°F59°F95°F 202053°F 201529%0%
Aug 2981°F58°F92°F 202049°F 200929%0%
Aug 3081°F58°F90°F 201248°F 200929%0%
Aug 3181°F58°F93°F 201344°F 200929%0%

Chance of rain

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

August 1
sunrise 6:01 AM, sunset 8:29 PM
August 31
sunrise 6:33 AM, sunset 7:44 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00094910 (Waterloo Muni AP), public domain. Records: NOAA GHCN-Daily, station USC00136199, 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.