Photo: Doug Kerr · CC BY-SA 2.0Clarksville gets about 103 inches of snow a winter, more than 97% of U.S. towns
Expect July afternoons of about 79°. In July, afternoons here are cooler than in 95% of U.S. towns. Since 1901–2000, the year has warmed by 1.1°, most of all in December. The heating season runs October to April: each of those months averages under 50°.
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 New York 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 144 frost-free days a year
In half of years the last 32° night comes by May 14 and the first by October 6. Day counts come from NOAA’s station at Wellsville Muni Airport, 13 miles from the town’s center, 140 ft higher; frost dates and degree days from Franklinville, NY, 17 miles away.
The 2023 USDA map puts Clarksville’s center in zone 5b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −13°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
About 103 inches of snow a winter
Snow, measured at Friendship 7 Sw, NY, falls mostly in January. Precipitation (rain plus melted snow) adds up to 43 inches a year; July is the wettest month and February the driest. Rain or snow falls on about 176 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Clarksville
96% of the work is heating, so the furnace matters far more than the air conditioner. 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 Franklinville, NY.
Living with Clarksville’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
144 frost-free days in zone 5b. The last frost comes by May 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 6.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August and September. 6.0 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Clarksville from natural hazards, river flooding is the largest share (84%); heat waves, cold waves, winter storms and ice storms together are 3%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Clarksville and its neighbors
Portville the hottest July afternoons (81°, 2° warmer). Differences under a degree are within what the 5 km grid can tell apart. Tap a town to see its climate.
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, NY | 14° | 79° | 43" | 103" |
| Winslow, ME | 10° | 79° | 45" | 86" |
| Chardon, OH | 18° | 81° | 45" | 114" |
| Williston, VT | 10° | 80° | 41" | 86" |
| Adams, MA | 13° | 81° | 45" | 77" |
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 Clarksville averaged 1.1° warmer than the 1900s. The biggest change is in December (+2.7°).
A smaller shift than in 72% 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 New York’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 Friendship 7 Sw, NY. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 31° | 14° | 3.0" | 26.7" | 19 | 24 | 14° – 32° |
| February | 34° | 15° | 2.3" | 17.4" | 14 | 21 | 10° – 33° |
| March | 43° | 22° | 2.8" | 18.8" | 15 | 15 | 25° – 45° |
| April | 56° | 32° | 3.5" | 4.5" | 15 | 2 | 38° – 50° |
| May | 68° | 42° | 3.7" | 0.0" | 14 | 0 | 48° – 62° |
| June | 76° | 51° | 4.3" | 0.0" | 14 | 0 | 59° – 67° |
| July | 79° | 55° | 4.4" | 0.0" | 13 | 0 | 62° – 72° |
| August | 78° | 54° | 4.1" | 0.0" | 12 | 0 | 62° – 71° |
| September | 71° | 48° | 4.1" | 0.0" | 12 | 0 | 56° – 65° |
| October | 59° | 37° | 4.0" | 1.1" | 14 | 1 | 44° – 54° |
| November | 46° | 29° | 3.2" | 12.2" | 16 | 7 | 32° – 43° |
| December | 36° | 21° | 3.3" | 22.6" | 18 | 19 | 18° – 39° |
| Year | 56° | 35° | 42.6" | 103.3" | 176 | 89 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 10° to 33°. June is the most reliable, staying within 8°.
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: Friendship 7 Sw, NY (NOAA station in town).
- Frost dates, heating and cooling: Franklinville, NY, 17 miles away.
- Freezing nights, 90° and 100° days: Wellsville Muni Airport, 13 miles from the town’s center, 140 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 79°, a January night drops to 14°, and about 103 inches of snow falls in a normal winter. Colder January nights than 87% of U.S. towns; cooler July afternoons than 95% of U.S. towns.
How cold does it get in Clarksville in winter?
January nights average 14°. About 145 nights a year reach 32° or below and 6 reach 0° or below. In the coldest January of the last 30 years the month averaged 14°.
How much snow does Clarksville get?
About 103 inches in a normal winter at Friendship 7 Sw, NY, most of it in January, with snow on the ground about 89 days a year.
How hot does it get in Clarksville?
July, with a typical high of 79°. 90° days are rare: none in a normal year at Franklinville, NY.
When is the first and last frost in Clarksville?
In half of years the last spring frost (32°) comes by May 14 and the first fall frost by October 6, about 144 frost-free days, at Franklinville, NY.
What growing zone is Clarksville in?
Zone 5b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −13°.
What is the best time of year to visit Clarksville?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Clarksville getting warmer?
Yes: 1991–2020 averaged 1.1° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 72% 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.