Three Rivers, TX climate
Three Rivers has warm winters and hot summers. A typical July afternoon reaches 96°, a January night drops to 44°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Three Rivers feels like
Winter
Spring
Summer
Fall
Three Rivers 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 | 67° | 44° | 1.6" | 0 | 6 | 0 | 50° – 61° |
| February | 71° | 48° | 1.5" | 0 | 5 | 0 | 52° – 67° |
| March | 77° | 55° | 2.3" | 0 | 6 | 0 | 59° – 72° |
| April | 84° | 60° | 2.0" | 0 | 4 | 0 | 66° – 78° |
| May | 89° | 68° | 3.2" | 0 | 5 | 0 | 74° – 83° |
| June | 95° | 73° | 2.6" | 0 | 5 | 0 | 81° – 89° |
| July | 96° | 74° | 2.6" | 0 | 4 | 0 | 81° – 89° |
| August | 98° | 74° | 2.0" | 0 | 4 | 0 | 83° – 90° |
| September | 92° | 70° | 3.8" | 0 | 5 | 0 | 79° – 85° |
| October | 85° | 62° | 2.6" | 0 | 4 | 0 | 71° – 78° |
| November | 75° | 52° | 1.6" | 0 | 4 | 0 | 58° – 70° |
| December | 68° | 45° | 1.5" | 0.3" | 5 | 0 | 50° – 61° |
| Year | 83° | 60° | 27.2" | 0.3" | 57 | 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 Three Rivers
Three Rivers gets 27 inches of rain and melted snow a year. September is the wettest month and February the driest. Rain or snow falls on about 57 days a year.
About 302 frost-free days a year
In half of years the last 32° night comes by February 8 and the first one by December 6. That leaves about 302 frost-free days for gardens, longer than 95% of U.S. towns.
Heating and cooling a home in Three Rivers
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Three Rivers, 28% of that work is heating and 72% 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 Three Rivers 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 Three Rivers averaged 1.1° warmer than the 1900s. The biggest change is in February (+2.6°). The shift is smaller than in 57% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Three Rivers’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 52° to 67°. August is the most reliable, staying within 7°.
Common questions about Three Rivers’s climate
What is the coldest month in Three Rivers?
January, with a typical high of 67° and a low of 44°.
What is the hottest month in Three Rivers?
August, with a typical high of 98° and a low of 74°. About 138 days a year reach 90°.
How much snow does Three Rivers get?
Almost none. A normal year brings 0.3 inches.
When is the first frost in Three Rivers?
In half of years the first 32° night comes by December 6, and the last spring frost by February 8.
What is the rainiest month in Three Rivers?
September, with 3.8 inches of rain and melted snow. The year totals 27 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Three Rivers itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Three Rivers 8 Ne, TX (8 mi, snow) and Choke Canyon Dam, TX (5 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.