West Salem climate

West Salem Weather in May

NOAA 1991-2020 normals for Olney 2S, 21 km from West Salem

Average highs run from 71°F on May 1 to 80°F on May 31, and lows from 48°F to 58°F. Normal precipitation for the month is 5.60 in over about 13 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 West Salem, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
75°F
Average low
53°F
Precipitation
5.60 in
Record high
95°FMay 28, 2012
Record low
32°FMay 1, 1963
Chance of a freeze
13%
Days of 90°F or more
0.8
Daylight
13 h 49 min to 14 h 40 min
Cloud cover
64%
Humidity
79%
Dew point
58°F
Wind
9.6 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 171°F48°F89°F 200732°F 196342%0%
May 271°F49°F85°F 200735°F 199442%0%
May 371°F49°F90°F 201235°F 199442%0%
May 472°F49°F89°F 201235°F 202242%0%
May 572°F50°F88°F 200136°F 199542%0%
May 672°F50°F87°F 200137°F 199242%0%
May 772°F50°F88°F 201237°F 199242%0%
May 873°F51°F85°F 200437°F 199242%0%
May 973°F51°F88°F 196339°F 201042%0%
May 1073°F51°F87°F 196336°F 202142%0%
May 1174°F52°F91°F 201839°F 199742%0%
May 1274°F52°F91°F 201839°F 202142%0%
May 1374°F52°F92°F 201840°F 201342%0%
May 1474°F53°F92°F 201838°F 199641%0%
May 1575°F53°F92°F 201840°F 201641%0%
May 1675°F53°F92°F 200135°F 199741%0%
May 1775°F54°F94°F 200135°F 199741%0%
May 1876°F54°F88°F 199837°F 200241%0%
May 1976°F54°F90°F 199637°F 200240%0%
May 2076°F55°F92°F 199839°F 200240%0%
May 2177°F55°F92°F 201243°F 202340%0%
May 2277°F55°F90°F 201839°F 199740%0%
May 2377°F56°F90°F 200439°F 199739%0%
May 2478°F56°F91°F 201044°F 196339%0%
May 2578°F56°F93°F 201844°F 199939%0%
May 2678°F57°F93°F 201245°F 199239%0%
May 2779°F57°F93°F 201242°F 199239%0%
May 2879°F57°F95°F 201242°F 199238%0%
May 2979°F58°F95°F 201844°F 199438%0%
May 3080°F58°F91°F 199841°F 202138%0%
May 3180°F58°F91°F 200748°F 202138%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at West Salem, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

May 1
sunrise 5:55 AM, sunset 7:44 PM
May 31
sunrise 5:30 AM, sunset 8:10 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00116446 (Olney 2S), public domain. Records: NOAA GHCN-Daily, station USC00114957, 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.