Delmar climate

Delmar Weather in August

NOAA 1991-2020 normals for Maquoketa, 9.6 km from Delmar

Average highs run from 82°F on August 1 to 79°F on August 31, and lows from 63°F to 58°F. Normal precipitation for the month is 4.18 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 Delmar, 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
61°F
Precipitation
4.18 in
Record high
106°FAug 18, 1936
Record low
39°FAug 28, 1986
Chance of a freeze
0%
Days of 90°F or more
1.9
Daylight
14 h 25 min to 13 h 11 min
Cloud cover
53%
Humidity
73%
Dew point
62°F
Wind
7.6 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 182°F63°F101°F 198850°F 189530%0%
Aug 282°F62°F100°F 193043°F 191230%0%
Aug 382°F62°F103°F 193045°F 191230%0%
Aug 482°F62°F99°F 198845°F 191230%0%
Aug 582°F62°F102°F 191846°F 189430%0%
Aug 681°F62°F99°F 191846°F 191030%0%
Aug 781°F62°F99°F 191848°F 190330%0%
Aug 881°F62°F100°F 189442°F 190430%0%
Aug 981°F62°F101°F 191345°F 192730%0%
Aug 1081°F62°F97°F 194446°F 191730%0%
Aug 1181°F62°F100°F 194146°F 190430%0%
Aug 1281°F62°F101°F 191846°F 190230%0%
Aug 1381°F61°F99°F 191847°F 193130%0%
Aug 1481°F61°F104°F 193644°F 196430%0%
Aug 1581°F61°F101°F 191345°F 192930%0%
Aug 1681°F61°F102°F 191346°F 199230%0%
Aug 1781°F61°F101°F 198848°F 199230%0%
Aug 1881°F61°F106°F 193643°F 196330%0%
Aug 1981°F60°F99°F 194747°F 192729%0%
Aug 2080°F60°F98°F 191642°F 189729%0%
Aug 2180°F60°F100°F 193645°F 195029%0%
Aug 2280°F60°F103°F 193644°F 190429%0%
Aug 2380°F60°F100°F 194748°F 190429%0%
Aug 2480°F59°F100°F 194743°F 190829%0%
Aug 2580°F59°F95°F 194841°F 191729%0%
Aug 2680°F59°F94°F 191342°F 193429%0%
Aug 2780°F59°F97°F 193043°F 191529%0%
Aug 2879°F58°F97°F 195539°F 198629%0%
Aug 2979°F58°F97°F 198439°F 193429%0%
Aug 3079°F58°F98°F 195340°F 189329%0%
Aug 3179°F58°F100°F 195340°F 191529%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Delmar, 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 5:56 AM, sunset 8:21 PM
August 31
sunrise 6:27 AM, sunset 7:38 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00135131 (Maquoketa), public domain. Records: NOAA GHCN-Daily, station USC00131635, 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.