Heartland, TX climate
Heartland has mild winters and hot summers. A typical July afternoon reaches 95°, a January night drops to 36°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Heartland feels like
Winter
Spring
Summer
Fall
Heartland 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 | 56° | 36° | 2.8" | 0 | 6 | 0 | 42° – 54° |
| February | 61° | 40° | 3.0" | 0 | 6 | 0 | 41° – 58° |
| March | 68° | 47° | 3.7" | 0 | 7 | 0 | 52° – 64° |
| April | 75° | 54° | 3.6" | 0 | 5 | 0 | 60° – 71° |
| May | 83° | 63° | 4.9" | 0 | 7 | 0 | 69° – 78° |
| June | 90° | 71° | 4.0" | 0 | 5 | 0 | 78° – 85° |
| July | 95° | 74° | 2.0" | 0 | 4 | 0 | 80° – 90° |
| August | 95° | 73° | 2.5" | 0 | 4 | 0 | 78° – 92° |
| September | 89° | 66° | 2.9" | 0 | 5 | 0 | 73° – 84° |
| October | 78° | 55° | 4.7" | 0 | 6 | 0 | 62° – 72° |
| November | 67° | 45° | 3.1" | 0.1" | 5 | 0 | 50° – 61° |
| December | 58° | 38° | 3.5" | 0 | 6 | 0 | 40° – 52° |
| Year | 76° | 55° | 40.5" | 0.1" | 64 | 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 Heartland
Heartland gets 40 inches of rain and melted snow a year. May is the wettest month and July the driest. Rain or snow falls on about 64 days a year.
About 250 frost-free days a year
In half of years the last 32° night comes by March 11 and the first one by November 18. That leaves about 250 frost-free days for gardens, longer than 90% of U.S. towns.
Heating and cooling a home in Heartland
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Heartland, 45% of that work is heating and 55% 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.
Heartland and its neighbors
Heartland borders 1 town with climate data. January nights across them vary by 0.2°. Mesquite has both the coldest January nights (36°) and the hottest July afternoons (95°). Heartland’s January low is 36° and its July high 95°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Heartland 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 Heartland averaged 0.5° warmer than the 1900s. The biggest change is in January (+1.7°). The shift is smaller than in 97% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Heartland’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 41° to 58°. June is the most reliable, staying within 8°.
Common questions about Heartland’s climate
What is the coldest month in Heartland?
January, with a typical high of 56° and a low of 36°.
What is the hottest month in Heartland?
August, with a typical high of 95° and a low of 73°. About 103 days a year reach 90°.
How much snow does Heartland get?
Almost none. A normal year brings 0.1 inches.
When is the first frost in Heartland?
In half of years the first 32° night comes by November 18, and the last spring frost by March 11.
What is the rainiest month in Heartland?
May, with 4.9 inches of rain and melted snow. The year totals 40 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Heartland itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Terrell, TX (9 mi, snow) and Terrell Municipal Airport, TX (11 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.