Photo: StationNT5Bmedia · CC BY-SA 3.0Few U.S. towns get more rain and snow than Dayton: 58 inches a year
On a normal January night the air cools to about 43°. Winters are mild: January nights here are milder than in 92% of U.S. towns. The latest 30-year average runs 1.3° warmer than 1901–2000’s, with February up the most. For walks and days out, the stretch from October to April brings highs of 63–82°.
A year in Dayton at a glance
Each month’s typical high and low, and what it brings.
What stands out about Dayton’s climate
Compared with towns across the U.S., with Dayton’s place in Texas beside it.
What a year in Dayton feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 286 frost-free days a year
In half of years the last 32° night comes by February 21 and the first by December 1. Frost and day counts come from NOAA’s station at Liberty, TX, 9 miles from the town’s center, at about the same height.
The 2023 USDA map puts Dayton’s center in zone 9b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 26°. 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 58 inches of rain a year
June is the wettest month and February the driest. Rain falls on about 102 days a year. Snow is rare: about 0.2" in a normal year at Liberty, TX, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Dayton
33% of the work is heating, so air conditioning is the bigger bill. Months averaging under 55°: December and January.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Liberty, TX.
Living with Dayton’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
286 frost-free days in zone 9b. The last frost comes by Feb 21 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Dec 1.
Months with highs of 62–84° and lows of 40° or more: January, February, March, April, October, November and December. 0.8 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Dayton from natural hazards, river flooding is the largest share (28%); heat waves, cold waves, winter storms and ice storms together are 14%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Dayton and similar climates
TownRatings has no climate map of the towns around Dayton yet.
Climates most like Dayton’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 |
|---|---|---|---|---|
| Dayton, TX | 43° | 93° | 58" | 0.2" |
| Paradise, CA | 40° | 93° | 57" | 0.1" |
| Crawfordville, FL | 41° | 92° | 57" | 0.0" |
| Eunice, LA | 41° | 92° | 60" | 0.0" |
| Dothan, AL | 39° | 92° | 56" | 0.1" |
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 Dayton averaged 1.3° warmer than the 1900s. The biggest change is in February (+2.3°).
A smaller shift than in 57% 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 Dayton compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Dayton’s place among Texas’.
Dayton weather by month
Highs, lows and precipitation from NOAA’s grid at Dayton’s center; snow, wet days and snow on the ground from Liberty, TX. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 63° | 43° | 4.6" | 0.0" | 10 | 0 | 47° – 60° |
| February | 67° | 47° | 3.5" | 0.0" | 9 | 0 | 48° – 65° |
| March | 73° | 53° | 3.8" | 0.0" | 8 | 0 | 57° – 70° |
| April | 79° | 59° | 4.1" | 0.0" | 8 | 0 | 64° – 73° |
| May | 85° | 67° | 5.2" | 0.0" | 7 | 0 | 73° – 79° |
| June | 91° | 73° | 5.8" | 0.0" | 9 | 0 | 79° – 85° |
| July | 93° | 74° | 4.6" | 0.0" | 9 | 0 | 81° – 86° |
| August | 94° | 74° | 5.6" | 0.0" | 9 | 0 | 80° – 88° |
| September | 89° | 70° | 5.6" | 0.0" | 9 | 0 | 77° – 83° |
| October | 82° | 60° | 5.6" | 0.0" | 7 | 0 | 67° – 77° |
| November | 72° | 51° | 4.7" | 0.0" | 7 | 0 | 55° – 67° |
| December | 65° | 45° | 4.7" | 0.2" | 10 | 0 | 48° – 60° |
| Year | 79° | 60° | 57.8" | 0.2" | 102 | 0 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 48° to 65°. July is the most reliable, staying within 5°.
Where Dayton’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 Dayton’s center.
- Snow: Liberty, TX.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Liberty, TX, 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 Dayton’s climate
What is the weather like in Dayton?
A typical July afternoon reaches 93°, a January night drops to 43°, and snow is almost unheard of. Milder January nights than 92% of U.S. towns; hotter July afternoons than 91% of U.S. towns.
How cold does it get in Dayton in winter?
January nights average 43°. About 14 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 47°.
How much snow does Dayton get?
About 0.2 inches in a normal winter at Liberty, TX, so most winters see none.
How hot does it get in Dayton?
July, with a typical high of 93° and a low of 74°. About 101 days a year reach 90° and 3 reach 100° (Liberty, TX).
When is the first and last frost in Dayton?
In half of years the last spring frost (32°) comes by February 21 and the first fall frost by December 1, about 286 frost-free days, at Liberty, TX.
What growing zone is Dayton in?
Zone 9b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 26°.
What is the best time of year to visit Dayton?
By one simple rule (highs of 62–84° and lows of 40° or more), January, February, March, April, October, November and December. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Dayton getting warmer?
Yes: 1991–2020 averaged 1.3° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 57% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Dayton.
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.