Will Pipes Freeze in Greene County, OH? 36 nights a Year
Freeze nights in Greene County
In a normal year Greene County, OH gets 36 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 52% of US counties.
Risk level: Regular. The risk season runs November to March, worst in January.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 106 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 36 nights |
| Insulated pipe in unheated space | 10°F | 13 nights |
| Inside the heated house | 0°F | 3 nights |
Foam-sleeving a bare pipe in unheated space takes it from 36 nights of risk to 13 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 10/24, last around 04/18. For 20°F: 11/30 to 03/17.
How cold Greene County nights get
Average winter (Dec-Feb) low: 25°F; the coldest month, January, averages 22°F overnight. 7 months normally bring at least one night below 32°F (Jan, Feb, Mar, Apr, Oct, Nov, Dec). Nights below 10°F, cold enough to freeze insulated pipe in an unheated space, come in January, February, March, December: 13 nights a year, and 3 nights below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 22°F | 25°F | 33°F | 43°F | 53°F | 62°F | 64°F | 62°F | 56°F | 45°F | 35°F | 28°F |
Greene County next to its neighbours
Clark County, OH, 27 km north, gets 48 nights below 20°F to Greene County's 36 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Greene County, OH | - | 106 nights | 36 nights | 22°F |
| Clark County, OH | 27 km north | 126 nights | 48 nights | 18°F |
| Clinton County, OH | 31 km south | 108 nights | 37 nights | 22°F |
| Montgomery County, OH | 35 km west | 107 nights | 37 nights | 21°F |
| Warren County, OH | 37 km southwest | 110 nights | 37 nights | 22°F |
| Fayette County, OH | 40 km east | 115 nights | 39 nights | 20°F |
| Madison County, OH | 48 km northeast | 128 nights | 48 nights | 19°F |
Greene County within OH
Greene County ranks 80 of 88 OH counties for nights below 20°F. The most is Williams County, OH at 61 nights, with a 19°F average winter low. The fewest is Scioto County, OH: 28 nights, winter lows near 24°F. At 1,024 ft, Greene County sits 108 ft above the state's median county elevation of 916 ft.
What to do here
- Insulate every pipe in unheated space before the season starts.
- Heat tape on the runs you cannot insulate well.
- Shut off and drain outdoor spigots for the season.
What insulating actually removes here, and when heat tape is needed: insulate or heat tape?.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Xenia (6 mi SSE), OH, 9 km away (close match). A normal year, not tonight's forecast: check the forecast low for the night itself. What a "fair" or "distant" station match means is in the method guide.