Photo: peggydavis66 · CC BY-SA 2.0Coolville’s winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 85°, a January night drops to 23°, and about 9 inches of snow falls in a normal winter.
A year in Coolville at a glance
Each month’s typical high and low, and what it brings.
What stands out about Coolville’s climate
Compared with towns across the U.S., with Coolville’s place in Ohio beside it.
What a year in Coolville feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 197 frost-free days a year
In half of years the last 32° night comes by April 14 and the first by October 30. Frost and day counts come from NOAA’s station at Parkersburg, WV, 14 miles from the town’s center, at about the same height.
The 2023 USDA map puts Coolville’s center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −2°. 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 9 inches of snow a winter
Snow, measured at Belleville L&d, OH, falls mostly in March. Precipitation (rain plus melted snow) adds up to 44 inches a year; June is the wettest month and November the driest. Rain or snow falls on about 120 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Coolville
80% of the work is heating. Months averaging under 55° run from November 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 Parkersburg, WV.
Living with Coolville’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
197 frost-free days in zone 6b. The last frost comes by Apr 14 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 30.
Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October.
Parks & trails →Of the yearly building losses FEMA expects in Coolville from natural hazards, river flooding is the largest share (85%); heat waves, cold waves, winter storms and ice storms together are 6%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Coolville and similar climates
TownRatings has no climate map of the towns around Coolville yet.
Climates most like Coolville’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 |
|---|---|---|---|---|
| Coolville, OH | 23° | 85° | 44" | 8.5" |
| Waynesboro, VA | 25° | 85° | 43" | 11" |
| Ocean Acres, NJ | 25° | 85° | 47" | 10" |
| Batesville, IN | 21° | 84° | 46" | 13" |
| Robinson, IL | 22° | 87° | 45" | 12" |
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 Coolville averaged 1.1° warmer than the 1900s. The biggest change is in December (+2.3°).
A smaller shift than in 71% 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 Coolville compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Coolville’s place among Ohio’s.
Coolville weather by month
Highs, lows and precipitation from NOAA’s grid at Coolville’s center; snow, wet days and snow on the ground from Belleville L&d, OH. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 40° | 23° | 3.2" | 2.3" | 12 | 23° – 41° |
| February | 44° | 25° | 3.1" | 0.6" | 10 | 23° – 44° |
| March | 54° | 32° | 4.1" | 3.9" | 12 | 37° – 54° |
| April | 67° | 41° | 3.9" | 0.1" | 12 | 48° – 60° |
| May | 75° | 50° | 4.4" | 0.0" | 12 | 57° – 70° |
| June | 82° | 59° | 4.5" | 0.0" | 10 | 66° – 73° |
| July | 85° | 63° | 4.3" | 0.0" | 10 | 70° – 78° |
| August | 85° | 62° | 3.6" | 0.0" | 8 | 68° – 78° |
| September | 79° | 55° | 3.6" | 0.0" | 7 | 63° – 72° |
| October | 67° | 43° | 3.0" | 0.0" | 8 | 52° – 61° |
| November | 55° | 34° | 2.9" | 0.1" | 9 | 37° – 50° |
| December | 44° | 28° | 3.4" | 1.5" | 12 | 25° – 47° |
| Year | 65° | 43° | 44.0" | 8.5" | 120 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 25° to 47°. June is the most reliable, staying within 7°.
Where Coolville’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 Coolville’s center.
- Snow: Belleville L&d, OH.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Parkersburg, WV, 14 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 Coolville’s climate
What is the weather like in Coolville?
A typical July afternoon reaches 85°, a January night drops to 23°, and about 9 inches of snow falls in a normal winter. Milder January nights than 55% of U.S. towns; cooler July afternoons than 50% of U.S. towns.
How cold does it get in Coolville in winter?
January nights average 23°. About 105 nights a year reach 32° or below and 1 reach 0° or below. In the coldest January of the last 30 years the month averaged 23°.
How much snow does Coolville get?
About 8.5 inches in a normal winter at Belleville L&d, OH, most of it in March.
How hot does it get in Coolville?
July, with a typical high of 85° and a low of 63°. About 29 days a year reach 90° (Parkersburg, WV).
When is the first and last frost in Coolville?
In half of years the last spring frost (32°) comes by April 14 and the first fall frost by October 30, about 197 frost-free days, at Parkersburg, WV.
What growing zone is Coolville in?
Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −2°.
What is the best time of year to visit Coolville?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Coolville getting warmer?
Yes: 1991–2020 averaged 1.1° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 71% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Coolville.
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.