Will Pipes Freeze in Gratiot County, MI? 70 nights a Year
Freeze nights in Gratiot County
In a normal year Gratiot County, MI gets 70 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 77% 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 | 156 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 70 nights |
| Insulated pipe in unheated space | 10°F | 31 nights |
| Inside the heated house | 0°F | 10 nights |
Foam-sleeving a bare pipe in unheated space takes it from 70 nights of risk to 31 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 05/01. For 20°F: 11/19 to 03/31.
How cold Gratiot County nights get
Average winter (Dec-Feb) low: 18°F; the coldest month, January, averages 15°F overnight. 9 months normally bring at least one night below 32°F (Jan, Feb, Mar, Apr, May, Sep, Oct, Nov, Dec). Nights below 10°F, cold enough to freeze insulated pipe in an unheated space, come in January, February, March, December: 31 nights a year, and 10 nights below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 15°F | 16°F | 23°F | 34°F | 46°F | 56°F | 59°F | 58°F | 50°F | 40°F | 30°F | 22°F |
Gratiot County next to its neighbours
Montcalm County, MI, 44 km west, gets 73 nights below 20°F to Gratiot County's 70 nights. Clinton County, MI, 38 km south, gets 62 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Gratiot County, MI | - | 156 nights | 70 nights | 15°F |
| Clinton County, MI | 38 km south | 144 nights | 62 nights | 18°F |
| Midland County, MI | 44 km northeast | 147 nights | 63 nights | 15°F |
| Isabella County, MI | 44 km northwest | 150 nights | 65 nights | 16°F |
| Montcalm County, MI | 44 km west | 159 nights | 73 nights | 14°F |
| Saginaw County, MI | 45 km east | 143 nights | 61 nights | 16°F |
| Shiawassee County, MI | 53 km southeast | 152 nights | 66 nights | 15°F |
Gratiot County within MI
Gratiot County ranks 40 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 786 ft, Gratiot County sits close to 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 Alma, MI, 11 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.