Shell Valley climate

Shell Valley Weather in May

NOAA 1991-2020 normals for Belcourt Keya Radio, 9.6 km from Shell Valley

Average highs run from 58°F on May 1 to 69°F on May 31, and lows from 33°F to 46°F. Normal precipitation for the month is 2.85 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 Shell Valley, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
64°F
Average low
40°F
Precipitation
2.85 in
Record high
94°FMay 23, 1980
Record low
11°FMay 3, 1967
Chance of a freeze
98%
Daylight
14 h 36 min to 15 h 53 min
Cloud cover
64%
Humidity
63%
Dew point
39°F
Wind
10.3 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
May 158°F33°F84°F 193912°F 1958
May 259°F34°F85°F 195213°F 1967
May 359°F34°F88°F 195211°F 1967
May 460°F34°F85°F 198019°F 1967
May 560°F35°F86°F 193919°F 1944
May 661°F35°F83°F 195318°F 1989
May 761°F36°F87°F 199219°F 1943
May 861°F36°F81°F 195319°F 1947
May 962°F37°F86°F 198714°F 2009
May 1062°F37°F85°F 199218°F 1946
May 1162°F38°F93°F 190620°F 1946
May 1263°F38°F85°F 194915°F 1946
May 1363°F38°F89°F 197719°F 2004
May 1464°F39°F90°F 197720°F 1983
May 1564°F39°F87°F 200120°F 1997
May 1664°F40°F89°F 198720°F 1983
May 1765°F40°F88°F 197025°F 2002
May 1865°F40°F91°F 194125°F 2002
May 1965°F41°F92°F 194827°F 1906
May 2066°F41°F91°F 196423°F 2002
May 2166°F42°F91°F 196424°F 1963
May 2266°F42°F92°F 198024°F 1963
May 2367°F43°F94°F 198029°F 1949
May 2467°F43°F86°F 198027°F 1949
May 2567°F43°F87°F 197730°F 1905
May 2667°F44°F89°F 196927°F 1906
May 2768°F44°F88°F 196927°F 1965
May 2868°F45°F86°F 194621°F 1947
May 2968°F45°F91°F 193927°F 1945
May 3069°F45°F92°F 198829°F 1947
May 3169°F46°F89°F 198628°F 1947

Chance of rain

Sunrise and sunset

Times for 2026, local time (CDT).

May 1
sunrise 6:19 AM, sunset 8:55 PM
May 31
sunrise 5:41 AM, sunset 9:34 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00320626 (Belcourt Keya Radio), public domain. Records: NOAA GHCN-Daily, station USC00327664, 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.