Los Fresnos, TX climate
Los Fresnos has warm winters and hot summers. A typical July afternoon reaches 94°, a January night drops to 51°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decade5° warmer than normal today. The forecast high is 94°, and a typical Oct 2 in Los Fresnos peaks around 89°.Live forecast: National Weather Service · Normal: NOAA 1991–2020
What a year in Los Fresnos feels like
Winter
Spring
Summer
Fall
Los Fresnos 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 | 71° | 51° | 1.1" | 0 | 7 | 0 | 55° – 67° |
| February | 75° | 56° | 1.1" | 0 | 5 | 0 | 58° – 73° |
| March | 80° | 61° | 1.4" | 0 | 5 | 0 | 64° – 77° |
| April | 85° | 66° | 1.4" | 0 | 5 | 0 | 70° – 80° |
| May | 90° | 72° | 2.2" | 0 | 5 | 0 | 76° – 84° |
| June | 93° | 76° | 2.9" | 0 | 6 | 0 | 82° – 88° |
| July | 94° | 76° | 1.9" | 0 | 5 | 0 | 82° – 88° |
| August | 96° | 76° | 2.0" | 0 | 6 | 0 | 84° – 89° |
| September | 91° | 73° | 5.4" | 0 | 11 | 0 | 79° – 85° |
| October | 87° | 67° | 3.3" | 0 | 8 | 0 | 74° – 80° |
| November | 79° | 59° | 1.8" | 0 | 7 | 0 | 64° – 75° |
| December | 73° | 53° | 1.3" | 0 | 8 | 0 | 57° – 67° |
| Year | 84° | 66° | 25.8" | 0.0" | 77 | 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 Los Fresnos
Los Fresnos gets 26 inches of rain and melted snow a year. September is the wettest month and February the driest. Rain or snow falls on about 77 days a year.
A year-round growing season
Heating and cooling a home in Los Fresnos
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Los Fresnos, 9% of that work is heating and 91% 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.
Los Fresnos and its neighbors
Los Fresnos borders 1 town with climate data. January nights across them vary by 0.2°. Brownsville has both the coldest January nights (52°) and the hottest July afternoons (94°). Los Fresnos’s January low is 51° and its July high 94°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Los Fresnos 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 Los Fresnos averaged 1.2° warmer than the 1900s. The biggest change is in February (+2.3°). The shift is larger than in 50% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Los Fresnos’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 58° to 73°. August is the most reliable, staying within 5°.
Common questions about Los Fresnos’s climate
What is the coldest month in Los Fresnos?
January, with a typical high of 71° and a low of 51°.
What is the hottest month in Los Fresnos?
August, with a typical high of 96° and a low of 76°. About 141 days a year reach 90°.
How much snow does Los Fresnos get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Los Fresnos?
Frost is uncommon. Only 26% of years see a night at 32° or below.
What is the rainiest month in Los Fresnos?
September, with 5.4 inches of rain and melted snow. The year totals 26 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Los Fresnos itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Brownsville, TX (12 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.