Will Pipes Freeze in Greene County, PA? 49 nights a Year
Freeze nights in Greene County
In a normal year Greene County, PA gets 49 nights at or below 20°F, the point where bare pipes in a garage, attic or outside wall start to freeze. That is more than 63% of US counties.
Risk level: Severe. The risk season runs November to April, worst in January.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 137 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 49 nights |
| Insulated pipe in unheated space | 10°F | 16 nights |
| Inside the heated house | 0°F | 4 nights |
Foam-sleeving a bare pipe in unheated space takes it from 49 nights of risk to 16 nights. A 12 ft heat-tape kit runs $17 to $37; an average burst-pipe repair is about $500.
Month by month
Nights at or below 20°F in a normal year.
First 32°F night is usually around 10/15, last around 05/03. For 20°F: 11/14 to 03/27.
How cold Greene County nights get
Average winter (Dec-Feb) low: 22°F; the coldest month, January, averages 19°F overnight. 8 months normally bring at least one night below 32°F (Jan, Feb, Mar, Apr, May, Oct, Nov, Dec). Nights below 10°F, cold enough to freeze insulated pipe in an unheated space, come in January, February, March, December: 16 nights a year, and 4 nights below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 19°F | 21°F | 27°F | 36°F | 47°F | 56°F | 61°F | 59°F | 52°F | 40°F | 30°F | 25°F |
Greene County next to its neighbours
Wetzel County, WV, 45 km southwest, gets 52 nights below 20°F to Greene County's 49 nights. Monongalia County, WV, 28 km southeast, gets 31 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Greene County, PA | - | 137 nights | 49 nights | 19°F |
| Monongalia County, WV | 28 km southeast | 106 nights | 31 nights | 23°F |
| Marion County, WV | 38 km south | 122 nights | 41 nights | 22°F |
| Marshall County, WV | 38 km west | 119 nights | 39 nights | 20°F |
| Washington County, PA | 39 km north | 121 nights | 48 nights | 20°F |
| Ohio County, WV | 44 km northwest | 108 nights | 36 nights | 22°F |
| Wetzel County, WV | 45 km southwest | 142 nights | 52 nights | 19°F |
Greene County within PA
Greene County ranks 37 of 67 PA counties for nights below 20°F. The most is Susquehanna County, PA at 80 nights, with a 15°F average winter low. The fewest is Delaware County, PA: 15 nights, winter lows near 28°F. At 1,069 ft, Greene County sits 72 ft below the state's median county elevation of 1,141 ft.
What to do here
- Treat it as a building fix, not a night-of routine: insulate, heat tape, seal crawlspace vents.
- An automatic leak shutoff pays for itself if one burst is avoided.
- Know where the main shutoff is before the first hard freeze.
The dates to be done by: when freeze season starts and ends.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Waynesburg (1 mi E), PA, 8 km away (close match). A normal year, not tonight's forecast: check the forecast low for the night itself. How a county figure is built from stations: how the numbers are made.