May, TX climate
May has mild winters and hot summers. A typical July afternoon reaches 95°, a January night drops to 33°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in May feels like
Winter
Spring
Summer
Fall
May weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 58° | 33° | 1.4" | 0.3" | 4 | 0 | 41° – 53° |
| February | 62° | 37° | 1.8" | 0 | 4 | 0 | 42° – 57° |
| March | 70° | 45° | 2.4" | 0 | 4 | 0 | 51° – 63° |
| April | 78° | 51° | 2.4" | 0 | 3 | 0 | 58° – 71° |
| May | 84° | 61° | 4.3" | 0 | 6 | 0 | 69° – 78° |
| June | 91° | 68° | 3.8" | 0 | 5 | 0 | 76° – 86° |
| July | 95° | 71° | 2.1" | 0 | 3 | 0 | 78° – 89° |
| August | 95° | 71° | 2.3" | 0 | 4 | 0 | 77° – 89° |
| September | 88° | 64° | 2.8" | 0 | 4 | 0 | 71° – 82° |
| October | 79° | 53° | 3.2" | 0 | 5 | 0 | 62° – 71° |
| November | 67° | 43° | 2.2" | 0 | 4 | 0 | 49° – 61° |
| December | 59° | 35° | 1.4" | 0.4" | 3 | 0 | 41° – 50° |
| Year | 77° | 53° | 30.3" | 0.7" | 49 | 0 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in May
May gets 30 inches of rain and melted snow a year. May is the wettest month and January the driest. Rain or snow falls on about 49 days a year.
About 230 frost-free days a year
In half of years the last 32° night comes by March 26 and the first one by November 10. That leaves about 230 frost-free days for gardens, longer than 86% of U.S. towns.
Heating and cooling a home in May
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In May, 54% of that work is heating and 46% is cooling.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
How May compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in May averaged 0.9° warmer than the 1900s. The biggest change is in March (+2.0°). The shift is smaller than in 81% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at May’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 42° to 57°. October is the most reliable, staying within 9°.
Common questions about May’s climate
What is the coldest month in May?
January, with a typical high of 58° and a low of 33°.
What is the hottest month in May?
August, with a typical high of 95° and a low of 71°. About 92 days a year reach 90°.
How much snow does May get?
Almost none. A normal year brings 0.7 inches.
When is the first frost in May?
In half of years the first 32° night comes by November 10, and the last spring frost by March 26.
What is the rainiest month in May?
May, with 4.3 inches of rain and melted snow. The year totals 30 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for May itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Rising Star 1s, TX (7 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.