Brown County climate

Brown County Weather in May

NOAA 1991-2020 normals for Columbia 8 N, 15.3 km from Brown County

Average highs run from 62°F on May 1 to 74°F on May 31, and lows from 38°F to 51°F. Normal precipitation for the month is 3.41 in over about 10 wet days.

May day by day

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

Normal daily high and low temperature at Brown County, in °F, with the record for each date.020406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
68°F
Average low
45°F
Precipitation
3.41 in
Record high
101°FMay 27, 2018
Record low
20°FMay 3, 2013
Chance of a freeze
76%
Daylight
14 h 20 min to 15 h 27 min
Cloud cover
63%
Humidity
62%
Dew point
43°F
Wind
11.6 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
May 162°F38°F84°F 202126°F 202629%3%
May 263°F38°F89°F 201526°F 201330%2%
May 363°F39°F78°F 202320°F 201330%2%
May 464°F39°F81°F 201827°F 202130%2%
May 564°F40°F88°F 201630°F 202631%2%
May 664°F40°F91°F 201632°F 201931%2%
May 765°F41°F87°F 201725°F 201931%1%
May 865°F41°F80°F 202530°F 202032%1%
May 966°F42°F83°F 202534°F 201932%1%
May 1066°F42°F86°F 202527°F 201932%1%
May 1166°F43°F90°F 202529°F 202032%1%
May 1267°F43°F91°F 202525°F 201332%1%
May 1367°F44°F91°F 201333°F 201432%1%
May 1468°F44°F88°F 202529°F 201632%1%
May 1568°F45°F83°F 201727°F 201432%0%
May 1668°F45°F90°F 201827°F 201433%0%
May 1769°F45°F93°F 201230°F 201433%0%
May 1869°F46°F92°F 201233°F 201533%0%
May 1970°F46°F82°F 202132°F 201533%0%
May 2070°F47°F80°F 201432°F 201933%0%
May 2170°F47°F81°F 202335°F 201733%0%
May 2271°F48°F88°F 201231°F 202234%0%
May 2371°F48°F87°F 201638°F 202534%0%
May 2471°F49°F91°F 201837°F 201734%0%
May 2572°F49°F93°F 201838°F 202434%0%
May 2672°F49°F97°F 201838°F 201234%0%
May 2772°F50°F101°F 201840°F 202135%0%
May 2873°F50°F90°F 202635°F 202135%0%
May 2973°F51°F89°F 201837°F 201235%0%
May 3073°F51°F90°F 201433°F 201235%0%
May 3174°F51°F89°F 201836°F 201735%0%

Chance of rain

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

May 1
sunrise 6:21 AM, sunset 8:41 PM
May 31
sunrise 5:48 AM, sunset 9:15 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00391873 (Columbia 8 N), public domain. Records: NOAA GHCN-Daily, station USC00390022, 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.