Houston climate

Houston Weather in May

NOAA 1991-2020 normals for Houston, 1 km from Houston

Average highs run from 72°F on May 1 to 79°F on May 31, and lows from 50°F to 59°F. Normal precipitation for the month is 5.43 in over about 11 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 Houston, 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
5.43 in
Record high
95°FMay 5, 2014
Record low
32°FMay 4, 2013
Chance of a freeze
12%
Days of 90°F or more
0.7
Daylight
13 h 45 min to 14 h 33 min
Cloud cover
62%
Humidity
80%
Dew point
57°F
Wind
4.5 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 172°F50°F86°F 200736°F 201535%0%
May 272°F50°F83°F 200739°F 201436%0%
May 372°F51°F86°F 202034°F 201336%0%
May 473°F51°F83°F 201432°F 201336%0%
May 573°F51°F95°F 201432°F 201336%0%
May 673°F51°F94°F 201437°F 201636%0%
May 773°F52°F89°F 201436°F 202636%0%
May 874°F52°F86°F 201438°F 202636%0%
May 974°F52°F86°F 202336°F 202036%0%
May 1074°F52°F89°F 202236°F 202036%0%
May 1174°F53°F90°F 202237°F 202037%0%
May 1274°F53°F93°F 202236°F 201337%0%
May 1375°F53°F94°F 202235°F 200837%0%
May 1475°F54°F92°F 202241°F 201337%0%
May 1575°F54°F89°F 201340°F 201637%0%
May 1675°F54°F87°F 202537°F 201437%0%
May 1776°F54°F88°F 201937°F 201437%0%
May 1876°F55°F85°F 201938°F 201437%0%
May 1976°F55°F87°F 201238°F 200937%0%
May 2076°F55°F88°F 201239°F 200937%0%
May 2176°F56°F86°F 201243°F 200737%0%
May 2277°F56°F86°F 201439°F 201536%0%
May 2377°F56°F85°F 201042°F 201536%0%
May 2477°F57°F88°F 202047°F 200936%0%
May 2577°F57°F90°F 201246°F 201336%0%
May 2678°F57°F91°F 201247°F 201336%0%
May 2778°F58°F95°F 201246°F 202335%0%
May 2878°F58°F91°F 201850°F 202235%0%
May 2978°F58°F92°F 201246°F 202135%0%
May 3079°F58°F90°F 201238°F 202135%0%
May 3179°F59°F86°F 202342°F 202135%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Houston, 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 7:58 PM
May 31
sunrise 5:49 AM, sunset 8:22 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00234019 (Houston), public domain. Records: NOAA GHCN-Daily, station USC00232981, 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.