Monona climate

Monona Weather in April

NOAA 1991-2020 normals for Postville, 14.4 km from Monona

Average highs run from 51°F on April 1 to 63°F on April 30, and lows from 29°F to 40°F. Normal precipitation for the month is 4.14 in over about 10 wet days.

April day by day

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

Normal daily high and low temperature at Monona, in °F, with the record for each date.-20020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

April at a glance

Average high
58°F
Average low
34°F
Precipitation
4.14 in
Snowfall
1.6 in
Record high
96°FApr 22, 1980
Record low
0°FApr 8, 1972
Chance of a freeze
100%
Daylight
12 h 45 min to 14 h 05 min
Cloud cover
66%
Humidity
76%
Dew point
38°F
Wind
12.3 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
Apr 151°F29°F81°F 198612°F 192428%5%
Apr 252°F29°F82°F 201014°F 189928%5%
Apr 352°F30°F80°F 189313°F 195428%5%
Apr 453°F30°F82°F 19109°F 197529%4%
Apr 553°F30°F80°F 192912°F 190629%4%
Apr 654°F31°F87°F 19912°F 198230%4%
Apr 754°F31°F84°F 199111°F 198230%4%
Apr 854°F31°F86°F 19310°F 197231%4%
Apr 955°F32°F80°F 193116°F 199731%4%
Apr 1055°F32°F90°F 193017°F 190932%4%
Apr 1156°F32°F86°F 193014°F 197332%3%
Apr 1256°F33°F84°F 197719°F 193933%3%
Apr 1357°F33°F86°F 202317°F 197333%3%
Apr 1457°F33°F84°F 189919°F 190733%3%
Apr 1557°F34°F87°F 189618°F 192834%3%
Apr 1658°F34°F88°F 200218°F 194934%3%
Apr 1758°F34°F86°F 197722°F 198334%3%
Apr 1859°F35°F90°F 198521°F 198335%3%
Apr 1959°F35°F90°F 198520°F 198335%2%
Apr 2060°F36°F88°F 198523°F 201835%2%
Apr 2160°F36°F90°F 198024°F 201836%2%
Apr 2260°F36°F96°F 198023°F 198636%2%
Apr 2361°F37°F94°F 198022°F 189336%2%
Apr 2461°F37°F88°F 193921°F 191036%2%
Apr 2561°F38°F87°F 200922°F 193436%2%
Apr 2662°F38°F86°F 196223°F 190736%2%
Apr 2762°F38°F86°F 197726°F 193337%1%
Apr 2863°F39°F88°F 191029°F 195037%1%
Apr 2963°F39°F92°F 191024°F 201837%1%
Apr 3063°F40°F94°F 189525°F 190537%1%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Monona, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

April 1
sunrise 6:47 AM, sunset 7:32 PM
April 30
sunrise 6:01 AM, sunset 8:06 PM

Every day of April: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00136766 (Postville), public domain. Records: NOAA GHCN-Daily, station USC00476827, 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.