Grant County climate

Grant County Weather in May

NOAA 1991-2020 normals for Morris W Cntrl Rsch & Outreach, 39.7 km from Grant County

Average highs run from 61°F on May 1 to 73°F on May 31, and lows from 38°F to 52°F. Normal precipitation for the month is 3.10 in over about 11 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 Grant 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
3.10 in
Record high
105°FMay 30, 1934
Record low
19°FMay 2, 1967
Chance of a freeze
65%
Days of 90°F or more
0.8
Daylight
14 h 21 min to 15 h 28 min
Cloud cover
66%
Humidity
64%
Dew point
44°F
Wind
12.1 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 161°F38°F97°F 195921°F 190933%2%
May 261°F39°F94°F 195919°F 196733%2%
May 362°F39°F95°F 194920°F 190734%2%
May 462°F40°F95°F 192622°F 196734%2%
May 563°F40°F94°F 192621°F 192934%2%
May 663°F41°F95°F 200021°F 192534%1%
May 764°F41°F87°F 189625°F 192534%1%
May 864°F42°F91°F 193425°F 190735%1%
May 965°F42°F89°F 192825°F 192335%1%
May 1065°F43°F87°F 190025°F 190735%1%
May 1166°F43°F88°F 190022°F 194635%1%
May 1266°F43°F90°F 190020°F 191835%0%
May 1367°F44°F90°F 193226°F 195335%0%
May 1467°F44°F94°F 193228°F 192135%0%
May 1567°F45°F96°F 193126°F 195935%0%
May 1668°F45°F93°F 193423°F 192935%0%
May 1768°F46°F92°F 197223°F 193035%0%
May 1869°F46°F90°F 191729°F 191535%0%
May 1969°F47°F89°F 193432°F 190735%0%
May 2069°F47°F91°F 199225°F 192935%0%
May 2170°F48°F96°F 196424°F 192935%0%
May 2270°F48°F95°F 192528°F 192436%0%
May 2371°F48°F97°F 192831°F 192436%0%
May 2471°F49°F88°F 200627°F 192436%0%
May 2571°F49°F89°F 192627°F 192436%0%
May 2672°F50°F92°F 193130°F 194736%0%
May 2772°F50°F97°F 196930°F 190736%0%
May 2872°F51°F101°F 193431°F 194736%0%
May 2973°F51°F95°F 200630°F 194737%0%
May 3073°F51°F105°F 193430°F 194737%0%
May 3173°F52°F105°F 193429°F 189737%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Grant 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 6:11 AM, sunset 8:32 PM
May 31
sunrise 5:38 AM, sunset 9:06 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00215638 (Morris W Cntrl Rsch & Outreach), public domain. Records: NOAA GHCN-Daily, station USC00212768, 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.