Will Pipes Freeze in Hardin County, OH? 49 nights a Year
Freeze nights in Hardin County
In a normal year Hardin County, OH 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 March, worst in January.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 124 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 49 nights |
| Insulated pipe in unheated space | 10°F | 17 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 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 10/24, last around 04/22. For 20°F: 11/26 to 03/22.
How cold Hardin County nights get
Average winter (Dec-Feb) low: 21°F; the coldest month, January, averages 18°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: 17 nights a year, and 4 nights below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 18°F | 21°F | 29°F | 39°F | 50°F | 60°F | 64°F | 62°F | 54°F | 43°F | 33°F | 24°F |
Hardin County next to its neighbours
Logan County, OH, 32 km south, gets 51 nights below 20°F to Hardin County's 49 nights. Hancock County, OH, 38 km north, gets 43 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Hardin County, OH | - | 124 nights | 49 nights | 18°F |
| Logan County, OH | 32 km south | 127 nights | 51 nights | 18°F |
| Wyandot County, OH | 36 km northeast | 130 nights | 50 nights | 17°F |
| Hancock County, OH | 38 km north | 117 nights | 43 nights | 20°F |
| Allen County, OH | 39 km west | 120 nights | 46 nights | 19°F |
| Marion County, OH | 43 km east | 128 nights | 51 nights | 18°F |
| Union County, OH | 48 km southeast | 115 nights | 41 nights | 20°F |
Hardin County within OH
Hardin County ranks 26 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 987 ft, Hardin County sits 72 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.
At this many nights, foam alone is not the answer: insulate or heat tape?.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Kenton, OH, 5 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.