Port Mansfield, TX climate
Port Mansfield has warm winters and warm summers. A typical July afternoon reaches 91°, a January night drops to 51°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Port Mansfield feels like
Winter
Spring
Summer
Fall
Port Mansfield 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 | 68° | 51° | 1.1" | 0 | 6 | 0 | 53° – 66° |
| February | 71° | 56° | 1.2" | 0 | 5 | 0 | 56° – 71° |
| March | 76° | 61° | 1.5" | 0 | 4 | 0 | 62° – 75° |
| April | 81° | 67° | 1.4" | 0 | 4 | 0 | 69° – 79° |
| May | 86° | 74° | 2.6" | 0 | 4 | 0 | 75° – 82° |
| June | 90° | 77° | 3.0" | 0 | 4 | 0 | 81° – 87° |
| July | 91° | 78° | 1.9" | 0 | 4 | 0 | 82° – 87° |
| August | 92° | 78° | 1.8" | 0 | 3 | 0 | 83° – 88° |
| September | 89° | 75° | 4.9" | 0 | 9 | 0 | 79° – 85° |
| October | 84° | 69° | 3.2" | 0 | 6 | 0 | 74° – 80° |
| November | 76° | 61° | 1.8" | 0 | 5 | 0 | 62° – 74° |
| December | 70° | 53° | 1.4" | 0.1" | 6 | 0 | 55° – 65° |
| Year | 81° | 67° | 25.8" | 0.1" | 59 | 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 Port Mansfield
Port Mansfield gets 26 inches of rain and melted snow a year. September is the wettest month and January the driest. Rain or snow falls on about 59 days a year.
A year-round growing season
Heating and cooling a home in Port Mansfield
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Port Mansfield, 15% of that work is heating and 85% is cooling, so air conditioning is the bigger bill.
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 Port Mansfield 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 Port Mansfield averaged 1.5° warmer than the 1900s. The biggest change is in February (+2.6°). The shift is larger than in 72% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Port Mansfield’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 56° to 71°. August is the most reliable, staying within 5°.
Common questions about Port Mansfield’s climate
What is the coldest month in Port Mansfield?
January, with a typical high of 68° and a low of 51°.
What is the hottest month in Port Mansfield?
August, with a typical high of 92° and a low of 78°. About 68 days a year reach 90°.
How much snow does Port Mansfield get?
Almost none. A normal year brings 0.1 inches.
When is the first frost in Port Mansfield?
Frost is uncommon. Only 56% of years see a night at 32° or below.
What is the rainiest month in Port Mansfield?
September, with 4.9 inches of rain and melted snow. The year totals 26 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Port Mansfield itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Port Mansfield, TX (1 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.