Will Pipes Freeze in Clark County, OH? 48 nights a Year
Freeze nights in Clark County
In a normal year Clark County, OH gets 48 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 March, worst in January.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 126 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 48 nights |
| Insulated pipe in unheated space | 10°F | 17 nights |
| Inside the heated house | 0°F | 5 nights |
Foam-sleeving a bare pipe in unheated space takes it from 48 nights of risk to 17 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 10/19, last around 04/25. For 20°F: 11/20 to 03/25.
How cold Clark County nights get
Average winter (Dec-Feb) low: 21°F; the coldest month, January, averages 18°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: 17 nights a year, and 5 nights below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 18°F | 20°F | 29°F | 38°F | 49°F | 59°F | 62°F | 60°F | 52°F | 41°F | 32°F | 24°F |
Clark County next to its neighbours
Champaign County, OH, 24 km north, gets 45 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Clark County, OH | - | 126 nights | 48 nights | 18°F |
| Champaign County, OH | 24 km north | 121 nights | 45 nights | 19°F |
| Greene County, OH | 27 km south | 106 nights | 36 nights | 22°F |
| Madison County, OH | 33 km east | 128 nights | 48 nights | 19°F |
| Miami County, OH | 41 km west | 114 nights | 39 nights | 20°F |
| Montgomery County, OH | 47 km southwest | 107 nights | 37 nights | 21°F |
| Fayette County, OH | 49 km southeast | 115 nights | 39 nights | 20°F |
Clark County within OH
Clark County ranks 31 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 1,028 ft, Clark County sits 113 ft above the state's median county elevation of 916 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.
Interior pipes have a threshold too: the four freeze points.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Springfield Water Plant, OH, 7 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.