Will Pipes Freeze in Jackson County, MI? 57 nights a Year
Freeze nights in Jackson County
In a normal year Jackson County, MI gets 57 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 70% 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 | 57 nights |
| Insulated pipe in unheated space | 10°F | 23 nights |
| Inside the heated house | 0°F | 7 nights |
Foam-sleeving a bare pipe in unheated space takes it from 57 nights of risk to 23 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 10/14, last around 05/01. For 20°F: 11/21 to 03/29.
How cold Jackson County nights get
Average winter (Dec-Feb) low: 20°F; the coldest month, January, averages 17°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: 23 nights a year, and 7 nights below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 17°F | 19°F | 27°F | 37°F | 48°F | 57°F | 61°F | 59°F | 52°F | 41°F | 32°F | 24°F |
Jackson County next to its neighbours
Ingham County, MI, 40 km north, gets 62 nights below 20°F to Jackson County's 57 nights. Lenawee County, MI, 49 km southeast, gets 53 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Jackson County, MI | - | 137 nights | 57 nights | 17°F |
| Ingham County, MI | 40 km north | 144 nights | 62 nights | 17°F |
| Hillsdale County, MI | 40 km southwest | 148 nights | 66 nights | 15°F |
| Washtenaw County, MI | 48 km east | 150 nights | 66 nights | 15°F |
| Lenawee County, MI | 49 km southeast | 135 nights | 53 nights | 17°F |
| Calhoun County, MI | 49 km west | 135 nights | 57 nights | 17°F |
| Eaton County, MI | 52 km northwest | 148 nights | 65 nights | 15°F |
Jackson County within MI
Jackson County ranks 66 of 83 MI counties for nights below 20°F. The most is Iron County, MI at 120 nights, with a 3°F average winter low. The fewest is Allegan County, MI: 38 nights, winter lows near 24°F. At 998 ft, Jackson County sits 191 ft above the state's median county elevation of 808 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 Jackson Reynolds Field, MI, 4 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.