Photo: Aesopposea · CC BY-SA 3.0In Clarksville, July heat, January chill and rainfall all sit near the middle of U.S. towns
Nights in January average 22°. Warming shows here too: 1.4° more than in 1901–2000, led by December. Garden planting can start around April 17; autumn frost returns near October 22.
A year in Clarksville at a glance
Each month’s typical high and low, and what it brings.
What stands out about Clarksville’s climate
Compared with towns across the U.S., with Clarksville’s place in Ohio beside it.
What a year in Clarksville feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 187 frost-free days a year
In half of years the last 32° night comes by April 17 and the first by October 22. Frost and day counts come from NOAA’s station at Wfo Wilmington, OH, 9 miles from the town’s center, 250 ft higher.
The 2023 USDA map puts Clarksville’s center in zone 6b: 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 27 inches of snow a winter
Snow, measured at Wfo Wilmington, OH, falls mostly in January. Precipitation (rain plus melted snow) adds up to 44 inches a year; June is the wettest month and February the driest. Rain or snow falls on about 142 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Clarksville
83% of the work is heating. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Wfo Wilmington, OH.
Living with Clarksville’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
187 frost-free days in zone 6b. The last frost comes by Apr 17 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 22.
Months with highs of 62–84° and lows of 40° or more: April, May, June, August, September and October.
Parks & trails →Of the yearly building losses FEMA expects in Clarksville from natural hazards, river flooding is the largest share (62%); heat waves, cold waves, winter storms and ice storms together are 12%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Clarksville and similar climates
TownRatings has no climate map of the towns around Clarksville yet.
Climates most like Clarksville’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 |
|---|---|---|---|---|
| Clarksville, OH | 22° | 85° | 44" | 27" |
| Elizabethtown, PA | 22° | 85° | 45" | 24" |
| New Martinsville, WV | 22° | 85° | 46" | 27" |
| Westminster, MD | 22° | 86° | 45" | 28" |
| Melville, NY | 24° | 84° | 45" | 32" |
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 Clarksville averaged 1.4° warmer than the 1900s. The biggest change is in December (+2.8°).
A smaller shift than in 50% 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 Clarksville compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Clarksville’s place among Ohio’s.
Clarksville weather by month
Highs, lows and precipitation from NOAA’s grid at Clarksville’s center; snow, wet days and snow on the ground from Wfo Wilmington, OH. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 38° | 22° | 3.2" | 8.9" | 14 | 22° – 41° |
| February | 42° | 24° | 2.7" | 7.4" | 12 | 20° – 43° |
| March | 52° | 32° | 3.8" | 4.1" | 12 | 35° – 54° |
| April | 65° | 42° | 4.5" | 0.4" | 13 | 47° – 59° |
| May | 74° | 52° | 4.7" | 0.0" | 14 | 57° – 70° |
| June | 82° | 61° | 4.7" | 0.0" | 13 | 67° – 74° |
| July | 85° | 64° | 4.2" | 0.0" | 11 | 70° – 79° |
| August | 84° | 62° | 3.3" | 0.0" | 10 | 68° – 78° |
| September | 78° | 55° | 3.1" | 0.0" | 9 | 63° – 72° |
| October | 66° | 44° | 3.1" | 0.1" | 10 | 52° – 61° |
| November | 53° | 34° | 3.0" | 1.1" | 11 | 37° – 49° |
| December | 42° | 27° | 3.4" | 4.6" | 13 | 22° – 45° |
| Year | 63° | 43° | 43.8" | 26.6" | 142 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 22° to 45°. June is the most reliable, staying within 7°.
Where Clarksville’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 Clarksville’s center.
- Snow: Wfo Wilmington, OH.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Wfo Wilmington, OH, 9 miles from the town’s center, 250 ft higher; 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 Clarksville’s climate
What is the weather like in Clarksville?
A typical July afternoon reaches 85°, a January night drops to 22°, and about 27 inches of snow falls in a normal winter. Milder January nights than 51% of U.S. towns; cooler July afternoons than 52% of U.S. towns.
How cold does it get in Clarksville in winter?
January nights average 22°. About 105 nights a year reach 32° or below and 3 reach 0° or below. In the coldest January of the last 30 years the month averaged 22°.
How much snow does Clarksville get?
About 27 inches in a normal winter at Wfo Wilmington, OH, most of it in January.
How hot does it get in Clarksville?
July, with a typical high of 85° and a low of 64°. About 17 days a year reach 90° (Wfo Wilmington, OH).
When is the first and last frost in Clarksville?
In half of years the last spring frost (32°) comes by April 17 and the first fall frost by October 22, about 187 frost-free days, at Wfo Wilmington, OH.
What growing zone is Clarksville in?
Zone 6b 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 Clarksville?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Clarksville getting warmer?
Yes: 1991–2020 averaged 1.4° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 50% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Clarksville.
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.