Hart, Texas climate: Normal weather by month, frost dates and records
Hart's normal year runs from 21°F January nights to 89°F July afternoons, with 17.7 inches of precipitation and 6 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 13.3°C, January lows of −6°C, July highs of 32°C, 451 mm of precipitation a year.
- NOAA stationHart
- Station IDUSC00413972
- Location34.37°N 102.12°W
- Elevation3,663 ft (1,117 m)
- From the center1 miles
- Population881
On October 23, the normal high in Hart is 70°F and the normal low 38°F, and the chance of measurable rain or snow is 14%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Hart.
- Jan 51° 21°
- Feb 55° 23°
- Mar 63° 31°
- Apr 72° 38°
- May 80° 49°
- Jun 88° 59°
- Jul 89° 62°
- Aug 88° 61°
- Sep 81° 54°
- Oct 72° 41°
- Nov 60° 30°
- Dec 51° 22°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Hart each month?
July is the warmest month, with normal highs of 89°F; January the coldest, with normal lows of 21°F. The most precipitation falls in June (2.56 in), the least in January (0.49 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 51°F | 21°F | 35.7°F | 0.49 | 1.2 | 3 | <1 | 29 | 10 h 10 min |
| February | 55°F | 23°F | 39.3°F | 0.49 | 1.8 | 3 | <1 | 24 | 11 h |
| March | 63°F | 31°F | 47.1°F | 0.99 | 0.6 | 5 | <1 | 16 | 11 h 50 min |
| April | 72°F | 38°F | 54.9°F | 1.18 | 0.0 | 4 | 1 | 5 | 13 h |
| May | 80°F | 49°F | 64.5°F | 2.46 | 0.0 | 6 | 7 | <1 | 14 h |
| June | 88°F | 59°F | 73.2°F | 2.56 | 0.0 | 7 | 15 | <1 | 14 h 30 min |
| July | 89°F | 62°F | 75.7°F | 2.13 | 0.0 | 6 | 19 | <1 | 14 h 20 min |
| August | 88°F | 61°F | 74.3°F | 2.35 | 0.0 | 7 | 16 | <1 | 13 h 30 min |
| September | 81°F | 54°F | 67.5°F | 1.91 | 0.0 | 6 | 6 | <1 | 12 h 30 min |
| October | 72°F | 41°F | 56.8°F | 1.64 | 0.1 | 5 | 1 | 3 | 11 h 20 min |
| November | 60°F | 30°F | 44.9°F | 0.82 | 0.7 | 3 | <1 | 18 | 10 h 20 min |
| December | 51°F | 22°F | 36.6°F | 0.72 | 1.8 | 3 | <1 | 28 | 9 h 50 min |
| Year (annual) | 71°F | 41°F | 55.9°F | 17.74 | 6.2 | 59 | 65 | 124 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 10°C | −6°C | 2.1°C | 12 mm | 3 cm |
| February | 13°C | −5°C | 4.1°C | 12 mm | 5 cm |
| March | 17°C | −1°C | 8.4°C | 25 mm | 2 cm |
| April | 22°C | 3°C | 12.7°C | 30 mm | 0 cm |
| May | 26°C | 10°C | 18.1°C | 62 mm | 0 cm |
| June | 31°C | 15°C | 22.9°C | 65 mm | 0 cm |
| July | 32°C | 17°C | 24.3°C | 54 mm | 0 cm |
| August | 31°C | 16°C | 23.5°C | 60 mm | 0 cm |
| September | 27°C | 12°C | 19.7°C | 49 mm | 0 cm |
| October | 22°C | 5°C | 13.8°C | 42 mm | 0 cm |
| November | 16°C | −1°C | 7.2°C | 21 mm | 2 cm |
| December | 11°C | −5°C | 2.6°C | 18 mm | 5 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00413972; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Hart?
Normal highs sit between 65°F and 85°F in April, May, September and October. Of those, April has the fewest days with rain (4).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00413972.
When is the last frost in Hart?
In Hart, the last spring frost (32°F) comes after April 22 in half of years and after May 3 in one year in ten; the first autumn frost comes before October 21 in half of years and before October 8 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 221 year in 10 after May 3; 9 in 10 after April 8
- First autumn frost, half of years before
- October 211 year in 10 before October 8; 9 in 10 before November 2
NOAA puts the median frost-free season at 182 days, and the season without a hard freeze (28°F) at 202 days.
A hard freeze (28°F) comes after April 10 in half of springs and before October 31 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Hart in zone 7a in ZIP code 79043, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Hart's NOAA station is in zone 7a: the coldest night of a typical year reaches 4°F (30 complete years).
Frost dates for every NOAA station in Texas · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00413972; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Hart?
In a normal year in Hart, 65 days a year reach 90°F (5 of them 100°F or more), 124 nights fall to 32°F or colder and 59 days bring measurable precipitation.
- Days at 90°F or more
- 65a normal year
- Days at 100°F or more
- 5a normal year
- Nights at 32°F or colder
- 124a normal year
- Days that stay below freezing
- 8high of 32°F or less
- Days with 0.01 inch of precipitation
- 59a normal year
- Days with 1 inch of snow or more
- 2a normal year
The highest temperature in this station's record (since 1986) is 110°F, on June 28, 1994; the lowest is −11°F, on February 16, 2021.
The wettest calendar year on that record is 2015, with 32.27 in; the snowiest season is 2004–05, with 30.3 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00413972; records: ACIS (NOAA Regional Climate Centers), station USC00413972. Records use complete months only; a month missing more than three days is left out.
How sunny is Hart?
Over a year 86% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Hart, 5.5 kWh per square metre a day. June is the sunniest month (91%) and February the cloudiest (81%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 84% | 3.3 |
| February | 81% | 4.1 |
| March | 83% | 5.4 |
| April | 86% | 6.7 |
| May | 86% | 7.3 |
| June | 91% | 7.8 |
| July | 90% | 7.5 |
| August | 89% | 6.7 |
| September | 87% | 5.6 |
| October | 85% | 4.5 |
| November | 85% | 3.5 |
| December | 81% | 2.9 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Hart need?
A normal year in Hart brings 4,415 heating degree days, 18% fewer than the median U.S. place (5,373), and 1,117 cooling degree days, 23% more than the median (908). Six months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,816 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 910 | 0 |
| February | 720 | 0 |
| March | 556 | 1 |
| April | 311 | 10 |
| May | 107 | 90 |
| June | 6 | 254 |
| July | 1 | 333 |
| August | 2 | 290 |
| September | 50 | 125 |
| October | 269 | 15 |
| November | 603 | 0 |
| December | 880 | 0 |
| Year (annual) | 4,415 | 1,117 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00413972. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Hart been warmer than normal lately?
2025 averaged 57.6°F, 1.7°F above the 1991-2020 normal of 55.9°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 56.3°F | +0.4°F | 19.16 | 8.5 |
| 2022 | 56.2°F | +0.3°F | 12.86 | 4.5 |
| 2023 | 57.6°F | +1.7°F | 19.73 | 4.5 |
| 2024 | 58.9°F | +3.0°F | 14.24 | 11.5 |
| 2025 | 57.6°F | +1.7°F | 19.67 | 4.3 |
Over 39 complete years from 1987 to 2025, the station's annual mean temperature rose at a fitted 4.7°F per century (+0.26°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00413972; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Hart's climate compare?
Hart is warmer than 1 of the other 320 places with their own NOAA record in Texas, and wetter than 31. Across the 7,247 U.S. stations with normals, its annual mean of 55.9°F is warmer than 63%.
In the Köppen classification computed from these normals, Hart is BSk: cold semi-arid steppe. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Hart share this climate record?
Nazareth has no NOAA station with 1991-2020 normals of its own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Nazareth, TX310 people · 12 mi N
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Hart's climate
What is the coldest month in Hart?
January, with a normal high of 51°F and a normal low of 21°F. The warmest is July (89°F by day, 62°F at night).
Does it snow in Hart?
Yes: 6 inches in a normal year, falling on 4 days with 0.1 inch or more, the most in February (1.8 inches).
What is the rainiest month in Hart?
June, with 2.56 in of precipitation in a normal year; the driest is January with 0.49 in.
What plant hardiness zone is Hart in?
The USDA's 2023 map puts Hart in zone 7a in ZIP code 79043, the nearest ZIP area. By the same method at Hart's NOAA station, the coldest night of a typical year reaches 4°F (30 years, 1991-2020): zone 7a.
How late can frost come in Hart?
In half of years the last 32°F night comes after April 22; in one year in ten it comes after May 3. Waiting until May 3 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Texas climateThe statewide normals and every place in the state
- Olton, TX13 miles from this station, 58.6°F a year
- Dimmitt, TX19 miles from this station, 57.0°F a year
- Tulia, TX24 miles from this station, 57.2°F a year
- Plainview, TX27 miles from this station, 59.7°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made