Blaine County climate

Blaine County Weather in May

NOAA 1991-2020 normals for Ft Belknap 2 Sw, 13.7 km from Blaine County

Average highs run from 61°F on May 1 to 70°F on May 31, and lows from 34°F to 46°F. Normal precipitation for the month is 1.86 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 Blaine County, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
66°F
Average low
40°F
Precipitation
1.86 in
Record high
98°FMay 21, 1980
Record low
14°FMay 2, 2005
Chance of a freeze
97%
Daylight
14 h 34 min to 15 h 49 min
Cloud cover
66%
Humidity
55%
Dew point
37°F
Wind
11.0 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
May 161°F34°F86°F 200016°F 2013
May 261°F34°F86°F 198514°F 2005
May 362°F34°F90°F 199818°F 2005
May 462°F35°F84°F 201624°F 1967
May 562°F35°F91°F 201724°F 1967
May 663°F36°F90°F 199217°F 2026
May 763°F36°F86°F 198525°F 2015
May 863°F36°F85°F 198725°F 2010
May 964°F37°F87°F 198726°F 2015
May 1064°F37°F89°F 202525°F 2002
May 1164°F38°F88°F 199325°F 2012
May 1265°F38°F93°F 200124°F 1966
May 1365°F39°F92°F 200123°F 2004
May 1465°F39°F87°F 198427°F 2016
May 1566°F39°F87°F 197330°F 1971
May 1666°F40°F95°F 198828°F 1986
May 1766°F40°F90°F 200629°F 2004
May 1867°F41°F94°F 200627°F 2015
May 1967°F41°F90°F 196427°F 1963
May 2067°F42°F89°F 196430°F 2021
May 2167°F42°F98°F 198027°F 1969
May 2268°F42°F95°F 198022°F 2022
May 2368°F43°F92°F 198831°F 1995
May 2468°F43°F96°F 200130°F 2000
May 2569°F44°F90°F 200331°F 2012
May 2669°F44°F94°F 202631°F 1964
May 2769°F44°F94°F 196628°F 2005
May 2870°F45°F93°F 202632°F 1982
May 2970°F45°F93°F 196132°F 2016
May 3070°F45°F91°F 198433°F 1982
May 3170°F46°F94°F 197227°F 1982

Chance of rain

Sunrise and sunset

Times for 2026, local time (MDT).

May 1
sunrise 5:56 AM, sunset 8:30 PM
May 31
sunrise 5:19 AM, sunset 9:08 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00243118 (Ft Belknap 2 Sw), public domain. Records: NOAA GHCN-Daily, station USW00094012, 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.