Will Pipes Freeze in Fairfield County, OH? 41 nights a Year
Freeze nights in Fairfield County
In a normal year Fairfield County, OH gets 41 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 57% 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 | 118 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 41 nights |
| Insulated pipe in unheated space | 10°F | 13 nights |
| Inside the heated house | 0°F | 5 nights |
Foam-sleeving a bare pipe in unheated space takes it from 41 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 10/13, last around 04/26. For 20°F: 11/17 to 03/21.
How cold Fairfield County nights get
Average winter (Dec-Feb) low: 23°F; the coldest month, January, averages 21°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: 13 nights a year, and 5 nights below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 21°F | 23°F | 31°F | 40°F | 51°F | 60°F | 63°F | 60°F | 53°F | 42°F | 32°F | 26°F |
Fairfield County next to its neighbours
Hocking County, OH, 31 km southeast, gets 46 nights below 20°F to Fairfield County's 41 nights. Pickaway County, OH, 38 km west, gets 38 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Fairfield County, OH | - | 118 nights | 41 nights | 21°F |
| Hocking County, OH | 31 km southeast | 130 nights | 46 nights | 19°F |
| Perry County, OH | 33 km east | 138 nights | 52 nights | 18°F |
| Pickaway County, OH | 38 km west | 112 nights | 38 nights | 22°F |
| Licking County, OH | 40 km north | 126 nights | 45 nights | 19°F |
| Franklin County, OH | 41 km northwest | 112 nights | 36 nights | 21°F |
| Vinton County, OH | 56 km south | 125 nights | 44 nights | 21°F |
Fairfield County within OH
Fairfield County ranks 61 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 917 ft, Fairfield County sits close to 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 Lancaster Fairfield Airport, OH, 3 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.