Photo: Nyttend · Public domainWeather without surprises: Blacksville keeps close to the norm for U.S. towns
On a normal January night the air cools to about 21°. By July afternoons alone, it runs cooler than 65% of U.S. towns. Since 1901–2000, the year has warmed by 1.0°, most of all in December. Garden chairs stay out from May to October, the months with highs of 65–84°.
A year in Blacksville at a glance
Each month’s typical high and low, and what it brings.
What stands out about Blacksville’s climate
Compared with towns across the U.S., with Blacksville’s place in West Virginia beside it.
What a year in Blacksville feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 164 frost-free days a year
In half of years the last 32° night comes by May 3 and the first by October 15. Frost and day counts come from NOAA’s station at Waynesburg 1 E, PA, 13 miles from the town’s center, 120 ft lower.
The 2023 USDA map puts Blacksville’s center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −4°. 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 30 inches of snow a winter
Snow, measured at Waynesburg 1 E, PA, falls mostly in January. Precipitation (rain plus melted snow) adds up to 44 inches a year; July is the wettest month and November the driest. Rain or snow falls on about 152 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Blacksville
90% 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 Waynesburg 1 E, PA.
Living with Blacksville’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
164 frost-free days in zone 6b. The last frost comes by May 3 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 15.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August, September and October.
Parks & trails →Of the yearly building losses FEMA expects in Blacksville from natural hazards, river flooding is the largest share (94%); heat waves, cold waves, winter storms and ice storms together are 1%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Blacksville and similar climates
TownRatings has no climate map of the towns around Blacksville yet.
Climates most like Blacksville’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 |
|---|---|---|---|---|
| Blacksville, WV | 21° | 84° | 44" | 30" |
| Wilmington, OH | 21° | 84° | 44" | 27" |
| Sunbury, PA | 20° | 84° | 43" | 29" |
| Essex, CT | 21° | 83° | 47" | 28" |
| Brookhaven, NY | 23° | 83° | 46" | 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 Blacksville averaged 1.0° warmer than the 1900s. The biggest change is in December (+2.4°).
A smaller shift than in 78% 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 Blacksville compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Blacksville’s place among West Virginia’s.
Blacksville weather by month
Highs, lows and precipitation from NOAA’s grid at Blacksville’s center; snow, wet days and snow on the ground from Waynesburg 1 E, PA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 39° | 21° | 3.6" | 9.5" | 15 | 12 | 22° – 39° |
| February | 42° | 23° | 3.0" | 8.1" | 13 | 8 | 20° – 41° |
| March | 52° | 30° | 3.8" | 5.6" | 13 | 4 | 35° – 52° |
| April | 65° | 39° | 3.7" | 0.4" | 14 | 0 | 47° – 57° |
| May | 73° | 48° | 4.4" | 0.0" | 14 | 0 | 54° – 67° |
| June | 80° | 57° | 4.3" | 0.0" | 13 | 0 | 65° – 71° |
| July | 84° | 61° | 4.8" | 0.0" | 11 | 0 | 68° – 76° |
| August | 82° | 60° | 3.7" | 0.0" | 11 | 0 | 67° – 76° |
| September | 77° | 53° | 3.5" | 0.0" | 10 | 0 | 62° – 70° |
| October | 65° | 42° | 3.2" | 0.2" | 11 | 0 | 50° – 59° |
| November | 53° | 32° | 2.9" | 0.7" | 12 | 1 | 36° – 48° |
| December | 43° | 26° | 3.5" | 5.6" | 14 | 6 | 24° – 45° |
| Year | 63° | 41° | 44.2" | 30.1" | 152 | 30 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 20° to 41°. June is the most reliable, staying within 7°.
Where Blacksville’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 Blacksville’s center.
- Snow: Waynesburg 1 E, PA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Waynesburg 1 E, PA, 13 miles from the town’s center, 120 ft lower; 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 Blacksville’s climate
What is the weather like in Blacksville?
A typical July afternoon reaches 84°, a January night drops to 21°, and about 30 inches of snow falls in a normal winter. Colder January nights than 53% of U.S. towns; cooler July afternoons than 65% of U.S. towns.
How cold does it get in Blacksville in winter?
January nights average 21°. About 138 nights a year reach 32° or below and 4 reach 0° or below. In the coldest January of the last 30 years the month averaged 22°.
How much snow does Blacksville get?
About 30 inches in a normal winter at Waynesburg 1 E, PA, most of it in January, with snow on the ground about 30 days a year.
How hot does it get in Blacksville?
July, with a typical high of 84° and a low of 61°. About 10 days a year reach 90° (Waynesburg 1 E, PA).
When is the first and last frost in Blacksville?
In half of years the last spring frost (32°) comes by May 3 and the first fall frost by October 15, about 164 frost-free days, at Waynesburg 1 E, PA.
What growing zone is Blacksville in?
Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −4°.
What is the best time of year to visit Blacksville?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Blacksville getting warmer?
Yes: 1991–2020 averaged 1.0° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 78% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Blacksville.
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.