Harrison County climate

Harrison County Weather in May

NOAA 1991-2020 normals for Gulfport - Biloxi AP, 0.5 km from Harrison County

Average highs run from 80°F on May 1 to 87°F on May 31, and lows from 62°F to 71°F. Normal precipitation for the month is 4.74 in over about 7 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 Harrison County, in °F, with the record for each date.406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
84°F
Average low
66°F
Precipitation
4.74 in
Record high
98°FMay 14, 2018
Record low
43°FMay 4, 2013
Chance of a freeze
0%
Days of 90°F or more
2.5
Daylight
13 h 21 min to 13 h 58 min
Cloud cover
48%
Humidity
76%
Dew point
67°F
Wind
8.7 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 180°F62°F86°F 200248°F 199923%0%
May 280°F63°F85°F 200248°F 199922%0%
May 381°F63°F90°F 201047°F 202622%0%
May 481°F63°F92°F 201043°F 201322%0%
May 581°F63°F90°F 202048°F 201722%0%
May 681°F64°F88°F 199947°F 201323%0%
May 782°F64°F89°F 201852°F 201623%0%
May 882°F64°F92°F 201853°F 199923%0%
May 982°F64°F91°F 201854°F 199923%0%
May 1082°F65°F92°F 202458°F 202023%0%
May 1183°F65°F91°F 200750°F 202024%0%
May 1283°F65°F91°F 200750°F 200824%0%
May 1383°F66°F91°F 201852°F 200624%0%
May 1483°F66°F98°F 201853°F 200225%0%
May 1584°F66°F94°F 202353°F 201125%0%
May 1684°F66°F95°F 201850°F 200625%0%
May 1784°F67°F93°F 201849°F 201126%0%
May 1884°F67°F90°F 201847°F 201126%0%
May 1984°F67°F91°F 202450°F 200227%0%
May 2085°F68°F91°F 201250°F 200227%0%
May 2185°F68°F93°F 201250°F 200227%0%
May 2285°F68°F91°F 201055°F 200228%0%
May 2385°F68°F94°F 200549°F 200128%0%
May 2486°F69°F96°F 200556°F 200229%0%
May 2586°F69°F92°F 201054°F 201729%0%
May 2686°F69°F94°F 201257°F 200130%0%
May 2786°F70°F97°F 201262°F 200230%0%
May 2886°F70°F97°F 202458°F 200331%0%
May 2987°F70°F96°F 201258°F 200331%0%
May 3087°F70°F93°F 201260°F 202132%0%
May 3187°F71°F93°F 200662°F 200132%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Harrison County, 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 6:13 AM, sunset 7:34 PM
May 31
sunrise 5:55 AM, sunset 7:53 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00093874 (Gulfport - Biloxi AP), public domain. Records: NOAA GHCN-Daily, station USW00093874, 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.