Dimmitt, Texas climate: Normal weather by month, frost dates and records
Dimmitt's normal year runs from 22°F January nights to 92°F July afternoons, with 21.0 inches of precipitation and 10 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 13.9°C, January lows of −5°C, July highs of 33°C, 533 mm of precipitation a year.
- NOAA stationDimmitt (2 mi N)
- Station IDUSC00412464
- Location34.59°N 102.31°W
- Elevation3,850 ft (1,174 m)
- Population4,119
On October 23, the normal high in Dimmitt is 70°F and the normal low 40°F, and the chance of measurable rain or snow is 15%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Dimmitt.
- Jan 51° 22°
- Feb 56° 25°
- Mar 64° 31°
- Apr 72° 39°
- May 81° 49°
- Jun 90° 60°
- Jul 92° 63°
- Aug 90° 62°
- Sep 83° 55°
- Oct 73° 43°
- Nov 61° 31°
- Dec 51° 24°
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 Dimmitt each month?
July is the warmest month, with normal highs of 92°F; January the coldest, with normal lows of 22°F. The most precipitation falls in June (3.59 in), the least in February (0.54 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 51°F | 22°F | 36.8°F | 0.57 | 1.9 | 3 | <1 | 29 | 10 h |
| February | 56°F | 25°F | 40.2°F | 0.54 | 2.1 | 3 | <1 | 24 | 11 h |
| March | 64°F | 31°F | 47.8°F | 1.03 | 1.4 | 4 | <1 | 18 | 11 h 50 min |
| April | 72°F | 39°F | 55.4°F | 1.25 | 0.1 | 5 | 1 | 8 | 13 h |
| May | 81°F | 49°F | 65.2°F | 2.64 | 0.0 | 7 | 7 | 1 | 14 h |
| June | 90°F | 60°F | 74.8°F | 3.59 | 0.0 | 7 | 16 | <1 | 14 h 30 min |
| July | 92°F | 63°F | 77.6°F | 2.35 | 0.0 | 7 | 21 | <1 | 14 h 20 min |
| August | 90°F | 62°F | 76.2°F | 3.10 | 0.0 | 8 | 19 | <1 | 13 h 30 min |
| September | 83°F | 55°F | 68.9°F | 2.41 | 0.0 | 6 | 8 | <1 | 12 h 30 min |
| October | 73°F | 43°F | 57.7°F | 2.10 | 0.4 | 6 | 1 | 5 | 11 h 20 min |
| November | 61°F | 31°F | 45.7°F | 0.70 | 1.1 | 3 | <1 | 19 | 10 h 20 min |
| December | 51°F | 24°F | 37.5°F | 0.72 | 2.8 | 4 | <1 | 28 | 9 h 50 min |
| Year (annual) | 72°F | 42°F | 57.0°F | 21.00 | 9.8 | 63 | 72 | 131 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 11°C | −5°C | 2.7°C | 14 mm | 5 cm |
| February | 13°C | −4°C | 4.6°C | 14 mm | 5 cm |
| March | 18°C | 0°C | 8.8°C | 26 mm | 4 cm |
| April | 22°C | 4°C | 13.0°C | 32 mm | 0 cm |
| May | 27°C | 10°C | 18.4°C | 67 mm | 0 cm |
| June | 32°C | 16°C | 23.8°C | 91 mm | 0 cm |
| July | 33°C | 17°C | 25.3°C | 60 mm | 0 cm |
| August | 32°C | 17°C | 24.6°C | 79 mm | 0 cm |
| September | 29°C | 13°C | 20.5°C | 61 mm | 0 cm |
| October | 23°C | 6°C | 14.3°C | 53 mm | 1 cm |
| November | 16°C | −1°C | 7.6°C | 18 mm | 3 cm |
| December | 11°C | −5°C | 3.1°C | 18 mm | 7 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00412464; 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 Dimmitt?
Normal highs sit between 65°F and 85°F in April, May, September and October. Of those, April has the fewest days with rain (5).
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 USC00412464.
When is the last frost in Dimmitt?
In Dimmitt, the last spring frost (32°F) comes after April 22 in half of years and after May 4 in one year in ten; the first autumn frost comes before October 23 in half of years and before October 9 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 4; 9 in 10 after April 8
- First autumn frost, half of years before
- October 231 year in 10 before October 9; 9 in 10 before November 4
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 November 1 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Dimmitt in zone 7a in ZIP code 79027, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Dimmitt's NOAA station is in zone 7a: the coldest night of a typical year reaches 2°F (29 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 USC00412464; 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 Dimmitt?
In a normal year in Dimmitt, 72 days a year reach 90°F (8 of them 100°F or more), 131 nights fall to 32°F or colder and 63 days bring measurable precipitation.
- Days at 90°F or more
- 72a normal year
- Days at 100°F or more
- 8a normal year
- Nights at 32°F or colder
- 131a normal year
- Days that stay below freezing
- 9high of 32°F or less
- Days with 0.01 inch of precipitation
- 63a normal year
- Days with 1 inch of snow or more
- 4a normal year
The highest temperature in this station's record (since 1962) is 109°F, on June 27, 2011; the lowest is −12°F, on February 16, 2021.
The wettest calendar year on that record is 2017, with 40.26 in; the snowiest season is 1960–61, with 29.3 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00412464; records: ACIS (NOAA Regional Climate Centers), station USC00412464. Records use complete months only; a month missing more than three days is left out.
How sunny is Dimmitt?
Over a year 86% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Dimmitt, 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 Dimmitt need?
A normal year in Dimmitt brings 4,235 heating degree days, 21% fewer than the median U.S. place (5,373), and 1,340 cooling degree days, 48% more than the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 4,111 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 873 | 0 |
| February | 694 | 0 |
| March | 536 | 1 |
| April | 298 | 12 |
| May | 100 | 104 |
| June | 5 | 299 |
| July | 1 | 390 |
| August | 2 | 350 |
| September | 43 | 160 |
| October | 251 | 23 |
| November | 580 | 1 |
| December | 854 | 0 |
| Year (annual) | 4,235 | 1,340 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00412464. 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 Dimmitt been warmer than normal lately?
2025 averaged 59.6°F, 2.6°F above the 1991-2020 normal of 57.0°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 57.7°F | +0.7°F | 15.45 | 8.1 |
| 2022 | 58.4°F | +1.4°F | 13.19 | 8.7 |
| 2023 | 59.7°F | +2.7°F | 17.87 | 8.1 |
| 2024 | 60.5°F | +3.5°F | 19.78 | 10.0 |
| 2025 | 59.6°F | +2.6°F | 21.64 | 13.9 |
Over 51 complete years from 1963 to 2025, the station's annual mean temperature rose at a fitted 4.0°F per century (+0.22°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00412464; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Dimmitt's climate compare?
Dimmitt is warmer than 11 of the other 320 places with their own NOAA record in Texas, and wetter than 65. Across the 7,247 U.S. stations with normals, its annual mean of 57.0°F is warmer than 66%.
In the Köppen classification computed from these normals, Dimmitt 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.
Questions about Dimmitt's climate
What is the coldest month in Dimmitt?
January, with a normal high of 51°F and a normal low of 22°F. The warmest is July (92°F by day, 63°F at night).
Does it snow in Dimmitt?
Yes: 10 inches in a normal year, falling on 6 days with 0.1 inch or more, the most in December (2.8 inches).
What is the rainiest month in Dimmitt?
June, with 3.59 in of precipitation in a normal year; the driest is February with 0.54 in.
What plant hardiness zone is Dimmitt in?
The USDA's 2023 map puts Dimmitt in zone 7a in ZIP code 79027, the nearest ZIP area. By the same method at Dimmitt's NOAA station, the coldest night of a typical year reaches 2°F (29 years, 1991-2020): zone 7a.
How late can frost come in Dimmitt?
In half of years the last 32°F night comes after April 22; in one year in ten it comes after May 4. Waiting until May 4 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Texas climateThe statewide normals and every place in the state
- Hereford, TX17 miles from this station, 57.4°F a year
- Hart, TX19 miles from this station, 55.9°F a year
- Friona, TX24 miles from this station, 56.8°F a year
- Olton, TX30 miles from this station, 58.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made