Climateby Month

Conroe, TX weather in May

NOAA 1991-2020 normals and daily records · Conroe all year

Conroe is warm and oppressively humid in May, with some rain: highs average 87°F and nights drop to about 67°F. There are about 6 days with rain.

Normal high
87°F
Normal low
67°F
Wet days
6
5.5 in total
Muggy days
22
dew point 65°F+

How May changes from start to finish

Normal values at the start and end of May
May 1May 31
Normal high83°F90°F
Normal low63°F70°F
Chance of a wet day19%21%
Sunrise / sunset6:38 am / 7:59 pm6:20 am / 8:18 pm
Daylight13.3 h14.0 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).

A typical May day

  1. 6 am70°Fdew point 66°F
  2. 9 am77°Fdew point 67°F
  3. Noon83°Fdew point 66°F
  4. 3 pm84°Fdew point 66°F
  5. 6 pm81°Fdew point 66°F
  6. 9 pm75°Fdew point 67°F

NOAA hourly normals (local standard time) from Houston Intercont Airport (24 mi away); average wind 8 mph; clear or few clouds in 18% of daytime hours, mostly cloudy or overcast in 58%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F2 of 31
  • Hot dayshigh 90°F or more8 of 31
  • Muggy daysdaily mean dew point 65°F or more22 of 31
  • Wet daysat least 0.01 in of rain or melted snow6 of 31
  • Notable rainat least 0.10 in5 of 31
  • Freezing nightslow 32°F or below0 of 31

Average days per May, counted from daily records for each year 1991-2020.

Rain in May

Normal precipitation is 5.5 in; a dry May brings about 2.5 in and a wet one about 7.7 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 2 an inch or more.

How May varies from year to year

  • Warmest May, 1991-20201996: average high 91°F
  • Coolest May1993: average high 81°F
  • Wettest May2015: 14.1 in
  • Driest May1998: no measurable precipitation
  • Highest reading100°F (May 31, 1998)
  • Lowest reading41°F (May 4, 2013)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

May compared with April and June

AprilMayJune
Normal high80°F87°F92°F
Normal low59°F67°F73°F
Wet days667
Comfortable days920
Daylight12.9 h13.7 h14.1 h

Highs change by +7°F from April and +5°F into June.

How Conroe ranks in May

  • Normal high41st warmest of 378 cities; 14th of 38 in Texas
  • Wet days99th driest of 378
  • Comfortable days295th most of 339

What to pack for Conroe in May

  • Light, breathable clothing – highs near 87°F and about 22 muggy days

Heating and cooling

May has 3 heating degree days and 363 cooling degree days (base 65°F), 8% of the year's total heating and cooling demand.

Questions

How hot is Conroe in May?

The normal high is 87°F and the normal low is 67°F. From 1991 to 2020 the hottest May reading was 100°F (May 31, 1998).

Does it rain a lot in Conroe in May?

About 6 days in May have at least 0.01 in of precipitation, and the normal total is 5.5 in. The wettest May in 1991-2020 was in 2015 (14.1 in); the driest was in 1998, with no measurable precipitation.

Is May a good time to visit Conroe?

May ranks 8th of 12 months on our comfort score for Conroe (51 out of 100). It has about 2 comfortable days and about 8 days at 90°F or hotter. The best months are March and April.

Where the numbers come from

  • Temperature, rain and frost dates: Conroe (USC00411956), 2.0 mi NW of the city center, 245 ft . NOAA normals and daily records, 1991-2020.
  • Snowfall, snow depth, humidity and wind by hour and cloud cover: Houston Intercont Airport (USW00012960), 24 mi SSE of the city center, 95 ft (122 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: G Bush Intercontinental Airport/Houston Airport (722430-12960), 23 mi SSE of the city center, 90 ft (127 ft lower than the city). Hourly observations, 1991-2020.