Johnston County climate

Johnston County Weather in May

NOAA 1991-2020 normals for Tishomingo 6N Mesonet, 2.4 km from Johnston County

Average highs run from 75°F on May 1 to 85°F on May 31, and lows from 53°F to 64°F.

May day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Johnston County, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
79°F
Average low
59°F
Record high
95°FMay 4, 2014
Record low
34°FMay 3, 2013
Chance of a freeze
0%
Days of 90°F or more
1.6
Daylight
13 h 34 min to 14 h 17 min
Cloud cover
59%
Humidity
78%
Dew point
62°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 175°F53°F87°F 202038°F 20140%
May 275°F54°F86°F 202038°F 20130%
May 375°F54°F91°F 201234°F 20130%
May 475°F54°F95°F 201437°F 20130%
May 576°F55°F91°F 201245°F 20130%
May 676°F55°F88°F 201444°F 20130%
May 776°F55°F90°F 201843°F 20260%
May 876°F56°F91°F 202247°F 20200%
May 977°F56°F90°F 201844°F 20200%
May 1077°F57°F91°F 201645°F 20190%
May 1177°F57°F88°F 202250°F 20200%
May 1278°F57°F89°F 202248°F 20130%
May 1378°F58°F91°F 201347°F 20210%
May 1478°F58°F95°F 202545°F 20110%
May 1579°F58°F94°F 202245°F 20110%
May 1679°F59°F88°F 201246°F 20110%
May 1780°F59°F89°F 201247°F 20110%
May 1880°F60°F91°F 201850°F 20090%
May 1980°F60°F90°F 202450°F 20090%
May 2081°F60°F90°F 202252°F 20090%
May 2181°F61°F90°F 202451°F 20170%
May 2281°F61°F90°F 201251°F 20130%
May 2382°F62°F92°F 201255°F 20170%
May 2482°F62°F91°F 201251°F 20170%
May 2583°F62°F91°F 201255°F 20220%
May 2683°F63°F95°F 201753°F 20220%
May 2783°F63°F95°F 201752°F 20220%
May 2884°F63°F94°F 201254°F 20090%
May 2984°F64°F93°F 201254°F 20090%
May 3084°F64°F93°F 201057°F 20090%
May 3185°F64°F94°F 202655°F 20150%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Johnston County, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

May 1
sunrise 6:37 AM, sunset 8:11 PM
May 31
sunrise 6:16 AM, sunset 8:33 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00348900 (Tishomingo 6N Mesonet), public domain. Records: NOAA GHCN-Daily, station USC00340313, 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.