Greenville climate

Greenville Weather in May

NOAA 1991-2020 normals for Vandalia, 28.4 km from Greenville

Average highs run from 71°F on May 1 to 79°F on May 31, and lows from 49°F to 59°F. Normal precipitation for the month is 5.30 in over about 12 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 Greenville, 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
54°F
Precipitation
5.30 in
Record high
99°FMay 31, 1895
Record low
28°FMay 10, 1966
Chance of a freeze
1%
Days of 90°F or more
1.0
Daylight
13 h 50 min to 14 h 42 min
Cloud cover
64%
Humidity
78%
Dew point
57°F
Wind
9.8 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°F49°F90°F 189529°F 190341%0%
May 271°F50°F93°F 189532°F 190741%0%
May 371°F50°F91°F 189531°F 196741%0%
May 472°F50°F92°F 195530°F 197141%0%
May 572°F51°F91°F 189532°F 191741%0%
May 672°F51°F90°F 192430°F 194441%0%
May 772°F51°F90°F 198631°F 190641%0%
May 873°F52°F92°F 198634°F 192341%0%
May 973°F52°F92°F 193432°F 196041%0%
May 1073°F52°F92°F 196328°F 196640%0%
May 1174°F53°F93°F 202233°F 190740%0%
May 1274°F53°F92°F 202232°F 196040%0%
May 1374°F53°F90°F 201834°F 196040%0%
May 1474°F54°F93°F 198732°F 192040%0%
May 1575°F54°F91°F 201335°F 192040%0%
May 1675°F54°F92°F 200135°F 192139%0%
May 1775°F55°F91°F 196235°F 201439%0%
May 1875°F55°F91°F 190636°F 200239%0%
May 1976°F55°F92°F 191136°F 192939%0%
May 2076°F56°F95°F 198738°F 198638%0%
May 2176°F56°F98°F 199235°F 192938%0%
May 2277°F56°F95°F 192533°F 192438%0%
May 2377°F57°F95°F 192536°F 193138%0%
May 2477°F57°F92°F 192140°F 192538%0%
May 2578°F57°F93°F 201028°F 192538%0%
May 2678°F57°F96°F 195333°F 192538%0%
May 2778°F58°F96°F 191135°F 196137%0%
May 2878°F58°F95°F 191137°F 190737%0%
May 2979°F58°F97°F 191140°F 194737%0%
May 3079°F59°F96°F 189538°F 194737%0%
May 3179°F59°F99°F 189535°F 193037%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Greenville, 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 6:00 AM, sunset 7:50 PM
May 31
sunrise 5:35 AM, sunset 8:17 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00118781 (Vandalia), public domain. Records: NOAA GHCN-Daily, station USC00114108, 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.