Harker Heights, TX climate
Harker Heights has mild winters and hot summers. A typical July afternoon reaches 96°, a January night drops to 37°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Harker Heights feels like
Winter
Spring
Summer
Fall
Harker Heights 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 | 60° | 37° | 2.4" | 0 | 7 | 0 | 44° – 55° |
| February | 65° | 41° | 2.2" | 0 | 7 | 0 | 45° – 61° |
| March | 71° | 48° | 3.0" | 0 | 8 | 0 | 53° – 65° |
| April | 78° | 55° | 2.7" | 0 | 6 | 0 | 61° – 72° |
| May | 85° | 64° | 4.5" | 0 | 7 | 0 | 71° – 80° |
| June | 92° | 70° | 3.2" | 0 | 6 | 0 | 77° – 85° |
| July | 96° | 73° | 1.9" | 0 | 4 | 0 | 80° – 89° |
| August | 96° | 73° | 2.3" | 0 | 4 | 0 | 79° – 90° |
| September | 90° | 66° | 3.3" | 0 | 6 | 0 | 74° – 85° |
| October | 81° | 56° | 3.7" | 0 | 6 | 0 | 65° – 74° |
| November | 69° | 46° | 2.5" | 0 | 6 | 0 | 51° – 64° |
| December | 62° | 38° | 2.5" | 0 | 7 | 0 | 43° – 54° |
| Year | 79° | 56° | 34.1" | 0.0" | 75 | 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 Harker Heights
Harker Heights gets 34 inches of rain and melted snow a year. May is the wettest month and July the driest. Rain or snow falls on about 75 days a year.
About 247 frost-free days a year
In half of years the last 32° night comes by March 14 and the first one by November 17. That leaves about 247 frost-free days for gardens, longer than 90% of U.S. towns.
Heating and cooling a home in Harker Heights
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Harker Heights, 44% of that work is heating and 56% 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.
Harker Heights and its neighbors
Harker Heights borders 2 towns with climate data. January nights across them vary by 0.2°. Killeen has both the coldest January nights (37°) and the hottest July afternoons (96°). Harker Heights’s January low is 37° and its July high 96°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Harker Heights 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 Harker Heights averaged 1.3° warmer than the 1900s. The biggest change is in February (+2.3°). The shift is larger than in 56% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Harker Heights’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 45° to 61°. June is the most reliable, staying within 8°.
Common questions about Harker Heights’s climate
What is the coldest month in Harker Heights?
January, with a typical high of 60° and a low of 37°.
What is the hottest month in Harker Heights?
August, with a typical high of 96° and a low of 73°. About 105 days a year reach 90°.
How much snow does Harker Heights get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Harker Heights?
In half of years the first 32° night comes by November 17, and the last spring frost by March 14.
What is the rainiest month in Harker Heights?
May, with 4.5 inches of rain and melted snow. The year totals 34 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Harker Heights itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Killeen, TX (3 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.