Afton climate

Afton Weather in May

NOAA 1991-2020 normals for River Falls, 14.5 km from Afton

Average highs run from 62°F on May 1 to 73°F on May 31, and lows from 38°F to 49°F. Normal precipitation for the month is 4.29 in.

May day by day

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

Normal daily high and low temperature at Afton, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
68°F
Average low
43°F
Precipitation
4.29 in
Snowfall
0.8 in
Record high
97°FMay 29, 2018
Record low
28°FMay 3, 2011
Chance of a freeze
81%
Days of 90°F or more
0.6
Daylight
14 h 16 min to 15 h 21 min
Cloud cover
65%
Humidity
71%
Dew point
47°F
Wind
9.4 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
May 162°F38°F82°F 201833°F 20113%
May 263°F38°F86°F 202132°F 20113%
May 363°F39°F79°F 201228°F 20112%
May 463°F39°F86°F 201531°F 20112%
May 564°F39°F81°F 202534°F 20132%
May 664°F40°F82°F 201833°F 20262%
May 765°F40°F89°F 201630°F 20262%
May 865°F40°F84°F 201833°F 20101%
May 965°F41°F78°F 201329°F 20201%
May 1066°F41°F83°F 202535°F 20191%
May 1166°F42°F86°F 200732°F 20211%
May 1266°F42°F88°F 202530°F 20201%
May 1367°F42°F91°F 202233°F 20131%
May 1467°F43°F88°F 202533°F 20161%
May 1567°F43°F94°F 201331°F 20161%
May 1668°F44°F85°F 202638°F 20090%
May 1768°F44°F85°F 201837°F 20090%
May 1868°F44°F82°F 201838°F 20090%
May 1969°F45°F90°F 201236°F 20150%
May 2069°F45°F91°F 200936°F 20150%
May 2169°F45°F90°F 200939°F 20080%
May 2270°F46°F82°F 200740°F 20250%
May 2370°F46°F83°F 201241°F 20220%
May 2470°F46°F85°F 201037°F 20130%
May 2571°F47°F92°F 201042°F 20250%
May 2671°F47°F87°F 201044°F 20110%
May 2771°F48°F91°F 201838°F 20080%
May 2872°F48°F88°F 201237°F 20210%
May 2972°F48°F97°F 201838°F 20210%
May 3072°F49°F91°F 201846°F 20150%
May 3173°F49°F86°F 201140°F 20150%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Afton, in percent, and of at least 0.1 inch of snowfall.01231102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

May 1
sunrise 6:01 AM, sunset 8:17 PM
May 31
sunrise 5:29 AM, sunset 8:50 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00477226 (River Falls), public domain. Records: NOAA GHCN-Daily, station USC00218039, 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.