Photo: Traveller2020 at English Wikipedia · CC BY-SA 3.0Keller reaches 100° on about 28 days a year, more than 97% of U.S. towns
Midwinter brings lows of about 35°. By January nights alone, it runs milder than 81% of U.S. towns. Since 1901–2000, the year has warmed by 0.8°, most of all in January. The frost-free window for a garden runs roughly March 12 to November 17.
A year in Keller at a glance
Each month’s typical high and low, and what it brings.
What stands out about Keller’s climate
Compared with towns across the U.S., with Keller’s place in Texas beside it.
What a year in Keller feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 249 frost-free days a year
In half of years the last 32° night comes by March 12 and the first by November 17. Frost and day counts come from NOAA’s station at Ft Worth Alliance Airport, 6 miles from the town’s center, at about the same height.
The 2023 USDA map puts Keller’s center in zone 8b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 17°. 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 38 inches of rain a year
May is the wettest month and January the driest. Rain falls on about 70 days a year. Snow is rare: about 0.1" in a normal year at Roanoke, TX, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Keller
43% of the work is heating, so air conditioning is the bigger bill. Months averaging under 55° run from December through February.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Ft Worth Alliance Airport.
Living with Keller’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
249 frost-free days in zone 8b. The last frost comes by Mar 12 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 17.
Months with highs of 62–84° and lows of 40° or more: March, April, May, October and November. 6.9 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Keller from natural hazards, river flooding is the largest share (47%); heat waves, cold waves, winter storms and ice storms together are 11%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Keller and its neighbors
Every town next door is within a degree of Keller in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Keller’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 |
|---|---|---|---|---|
| Keller, TX | 35° | 96° | 38" | 0.1" |
| Chico, CA | 38° | 96° | 31" | 0.0" |
| Cayce, SC | 35° | 93° | 46" | 1.2" |
| Tecumseh, OK | 28° | 93° | 40" | 1.4" |
| Evans, GA | 35° | 92° | 45" | 0.8" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Keller averaged 0.8° warmer than the 1900s. The biggest change is in January (+2.0°).
A smaller shift than in 88% 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 Keller compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Keller’s place among Texas’.
Keller weather by month
Highs, lows and precipitation from NOAA’s grid at Keller’s center; snow, wet days and snow on the ground from Roanoke, TX. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 56° | 35° | 2.2" | 0.0" | 6 | 0 | 41° – 54° |
| February | 61° | 39° | 2.6" | 0.1" | 6 | 0 | 41° – 59° |
| March | 68° | 47° | 3.3" | 0.0" | 7 | 0 | 52° – 64° |
| April | 76° | 54° | 3.2" | 0.0" | 6 | 0 | 60° – 71° |
| May | 83° | 63° | 4.5" | 0.0" | 8 | 0 | 70° – 79° |
| June | 91° | 71° | 4.0" | 0.0" | 6 | 0 | 78° – 86° |
| July | 96° | 75° | 2.3" | 0.0" | 4 | 0 | 81° – 91° |
| August | 96° | 75° | 2.5" | 0.0" | 5 | 0 | 79° – 93° |
| September | 89° | 67° | 3.2" | 0.0" | 5 | 0 | 74° – 85° |
| October | 78° | 56° | 4.5" | 0.0" | 6 | 0 | 62° – 72° |
| November | 66° | 46° | 2.7" | 0.0" | 6 | 0 | 50° – 62° |
| December | 58° | 37° | 2.7" | 0.0" | 5 | 0 | 40° – 52° |
| Year | 76° | 55° | 37.5" | 0.1" | 70 | 0 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 41° to 59°. June is the most reliable, staying within 8°.
Where Keller’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 Keller’s center.
- Snow: Roanoke, TX.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Ft Worth Alliance Airport, 6 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 Keller’s climate
What is the weather like in Keller?
A typical July afternoon reaches 96°, a January night drops to 35°, and snow is almost unheard of. Milder January nights than 81% of U.S. towns; hotter July afternoons than 96% of U.S. towns.
How cold does it get in Keller in winter?
January nights average 35°. About 45 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 41°.
How much snow does Keller get?
About 0.1 inches in a normal winter at Roanoke, TX, so most winters see none.
How hot does it get in Keller?
July, with a typical high of 96° and a low of 75°. About 108 days a year reach 90° and 28 reach 100° (Ft Worth Alliance Airport).
When is the first and last frost in Keller?
In half of years the last spring frost (32°) comes by March 12 and the first fall frost by November 17, about 249 frost-free days, at Ft Worth Alliance Airport.
What growing zone is Keller in?
Zone 8b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 17°.
What is the best time of year to visit Keller?
By one simple rule (highs of 62–84° and lows of 40° or more), March, April, May, October and November. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Keller getting warmer?
Yes: 1991–2020 averaged 0.8° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 88% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Keller.
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.