Photo: Billy Hathorn · CC BY-SA 3.0Precipitation in Dimmitt trails that of 90% of U.S. towns: 20 inches a year
In July the day’s top temperature is typically 91°. Only 68° separates winter nights from summer afternoons. Summer afternoons here are warmer than in 84% of U.S. towns. Garden planting can start around April 22; autumn frost returns near October 23.
A year in Dimmitt at a glance
Each month’s typical high and low, and what it brings.
What stands out about Dimmitt’s climate
Compared with towns across the U.S., with Dimmitt’s place in Texas beside it.
What a year in Dimmitt feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 182 frost-free days a year
In half of years the last 32° night comes by April 22 and the first by October 23. Frost and day counts come from NOAA’s station at Dimmitt 2 N, TX, 2.9 miles from the town’s center, at about the same height.
The 2023 USDA map puts Dimmitt’s center in zone 7a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 3°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 10 inches of snow a winter
Snow, measured at Dimmitt 2 N, TX, falls mostly in December. Precipitation (rain plus melted snow) adds up to 20 inches a year; June is the wettest month and February the driest. Rain or snow falls on about 63 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Dimmitt
76% of the work is heating. Months averaging under 55° run from November through March.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Dimmitt 2 N, TX.
Living with Dimmitt’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
182 frost-free days in zone 7a. The last frost comes by Apr 22 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 23.
Months with highs of 62–84° and lows of 40° or more: April, May, September and October. 0.1 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Dimmitt from natural hazards, tornadoes are the largest share (28%); heat waves, cold waves, winter storms and ice storms together are 26%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Dimmitt and similar climates
TownRatings has no climate map of the towns around Dimmitt yet.
Climates most like Dimmitt’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Dimmitt, TX | 24° | 91° | 20" | 9.8" |
| Prescott, AZ | 26° | 90° | 15" | 10" |
| Yreka, CA | 29° | 91° | 20" | 12" |
| Liberal, KS | 21° | 94° | 20" | 14" |
| Sunset, UT | 22° | 92° | 18" | 23" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Dimmitt averaged 1.2° warmer than the 1900s. The biggest change is in March (+2.5°).
A smaller shift than in 59% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Dimmitt compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Dimmitt’s place among Texas’.
Dimmitt weather by month
Highs, lows and precipitation from NOAA’s grid at Dimmitt’s center; snow, wet days and snow on the ground from Dimmitt 2 N, TX. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 52° | 24° | 0.6" | 1.9" | 3 | 2 | 31° – 43° |
| February | 56° | 27° | 0.5" | 2.1" | 3 | 2 | 34° – 47° |
| March | 65° | 34° | 1.1" | 1.4" | 4 | 1 | 45° – 54° |
| April | 72° | 40° | 1.1" | 0.1" | 5 | 0 | 50° – 62° |
| May | 81° | 51° | 2.3" | 0.0" | 7 | 0 | 62° – 73° |
| June | 90° | 61° | 3.1" | 0.0" | 7 | 0 | 70° – 81° |
| July | 91° | 64° | 2.5" | 0.0" | 7 | 0 | 75° – 83° |
| August | 90° | 63° | 2.6" | 0.0" | 8 | 0 | 72° – 83° |
| September | 83° | 56° | 2.2" | 0.0" | 6 | 0 | 65° – 75° |
| October | 73° | 44° | 1.9" | 0.4" | 6 | 0 | 52° – 63° |
| November | 61° | 32° | 0.7" | 1.1" | 3 | 1 | 40° – 52° |
| December | 52° | 25° | 0.8" | 2.8" | 4 | 2 | 33° – 42° |
| Year | 72° | 43° | 19.5" | 9.8" | 63 | 8 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 34° to 47°. July is the most reliable, staying within 8°.
Where Dimmitt’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Dimmitt’s center.
- Snow: Dimmitt 2 N, TX.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Dimmitt 2 N, TX, 2.9 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Dimmitt’s climate
What is the weather like in Dimmitt?
A typical July afternoon reaches 91°, a January night drops to 24°, and about 10 inches of snow falls in a normal winter. Milder January nights than 59% of U.S. towns; hotter July afternoons than 84% of U.S. towns.
How cold does it get in Dimmitt in winter?
January nights average 24°. About 131 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 31°.
How much snow does Dimmitt get?
About 9.8 inches in a normal winter at Dimmitt 2 N, TX, most of it in December, with snow on the ground about 8 days a year.
How hot does it get in Dimmitt?
July, with a typical high of 91° and a low of 64°. About 72 days a year reach 90° and 8 reach 100° (Dimmitt 2 N, TX).
When is the first and last frost in Dimmitt?
In half of years the last spring frost (32°) comes by April 22 and the first fall frost by October 23, about 182 frost-free days, at Dimmitt 2 N, TX.
What growing zone is Dimmitt in?
Zone 7a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 3°.
What is the best time of year to visit Dimmitt?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Dimmitt getting warmer?
Yes: 1991–2020 averaged 1.2° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 59% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Dimmitt.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.