Will Pipes Freeze in Berrien County, MI? 46 nights a Year
Freeze nights in Berrien County
In a normal year Berrien County, MI gets 46 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 61% 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 | 120 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 46 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 46 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 10/27, last around 04/19. For 20°F: 11/27 to 03/18.
How cold Berrien 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 5 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 | 59°F | 64°F | 63°F | 55°F | 44°F | 33°F | 24°F |
Berrien County next to its neighbours
LaPorte County, IN, 27 km south, gets 49 nights below 20°F to Berrien County's 46 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Berrien County, MI | - | 120 nights | 46 nights | 18°F |
| LaPorte County, IN | 27 km south | 123 nights | 49 nights | 17°F |
| Porter County, IN | 42 km southwest | 125 nights | 48 nights | 18°F |
| St. Joseph County, IN | 42 km southeast | 133 nights | 51 nights | 16°F |
| Starke County, IN | 57 km south | 137 nights | 56 nights | 16°F |
| Cass County, MI | 63 km east | 134 nights | 53 nights | 18°F |
| Lake County, IN | 63 km southwest | 128 nights | 53 nights | 16°F |
Berrien County within MI
Berrien County ranks 81 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 640 ft, Berrien County sits 167 ft below 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.
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 Laporte, IN, 20 km away (fair match). A normal year, not tonight's forecast: check the forecast low for the night itself. Why elevation is part of the blend: how county numbers are made.