Collinsville climate

Collinsville Weather in May

NOAA 1991-2020 normals for Sand Mt Substn, 10.3 km from Collinsville

Average highs run from 74°F on May 1 to 82°F on May 31, and lows from 52°F to 61°F. Normal precipitation for the month is 4.53 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 Collinsville, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
78°F
Average low
57°F
Precipitation
4.53 in
Record high
94°FMay 27, 2012
Record low
38°FMay 4, 2004
Chance of a freeze
0%
Days of 90°F or more
0.6
Daylight
13 h 34 min to 14 h 17 min
Cloud cover
56%
Humidity
78%
Dew point
60°F
Wind
4.9 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 174°F52°F89°F 201240°F 202134%0%
May 275°F53°F89°F 201242°F 202333%0%
May 375°F53°F93°F 202440°F 200533%0%
May 475°F53°F89°F 202438°F 200433%0%
May 575°F54°F86°F 201038°F 200433%0%
May 675°F54°F92°F 202439°F 201733%0%
May 776°F54°F88°F 201040°F 202033%0%
May 876°F54°F87°F 200445°F 202033%0%
May 976°F55°F93°F 202540°F 202033%0%
May 1076°F55°F89°F 200438°F 202033%0%
May 1177°F55°F89°F 201138°F 202033%0%
May 1277°F56°F92°F 202444°F 202033%0%
May 1377°F56°F90°F 201839°F 201333%0%
May 1477°F56°F91°F 201842°F 200233%0%
May 1578°F57°F92°F 201842°F 200233%0%
May 1678°F57°F88°F 202247°F 200633%0%
May 1778°F57°F90°F 201744°F 201133%0%
May 1878°F57°F93°F 202543°F 200933%0%
May 1979°F58°F89°F 202540°F 200233%0%
May 2079°F58°F90°F 201739°F 200233%0%
May 2179°F58°F91°F 202241°F 200233%0%
May 2279°F59°F90°F 202242°F 200233%0%
May 2380°F59°F92°F 202546°F 200233%0%
May 2480°F59°F92°F 201050°F 201533%0%
May 2580°F59°F92°F 201948°F 200533%0%
May 2680°F60°F92°F 201949°F 200533%0%
May 2781°F60°F94°F 201253°F 200333%0%
May 2881°F60°F92°F 201246°F 200133%0%
May 2981°F60°F92°F 201254°F 200333%0%
May 3081°F61°F93°F 201251°F 200333%0%
May 3182°F61°F94°F 201155°F 202534%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Collinsville, 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 5:54 AM, sunset 7:28 PM
May 31
sunrise 5:33 AM, sunset 7:50 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00017207 (Sand Mt Substn), public domain. Records: NOAA GHCN-Daily, station USC00013043, 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.