Will Pipes Freeze in Lamoille County, VT? 98 nights a Year
Freeze nights in Lamoille County
In a normal year Lamoille County, VT gets 98 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 91% of US counties.
Risk level: Severe. The risk season runs October to April, worst in January.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 179 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 98 nights |
| Insulated pipe in unheated space | 10°F | 59 nights |
| Inside the heated house | 0°F | 32 nights |
Foam-sleeving a bare pipe in unheated space takes it from 98 nights of risk to 59 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 09/28, last around 05/20. For 20°F: 11/02 to 04/13.
How cold Lamoille County nights get
Average winter (Dec-Feb) low: 8°F; the coldest month, January, averages 4°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, November, December: 59 nights a year, and 32 nights below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4°F | 6°F | 16°F | 29°F | 40°F | 50°F | 55°F | 53°F | 45°F | 35°F | 25°F | 13°F |
Lamoille County next to its neighbours
Orleans County, VT, 39 km northeast, gets 103 nights below 20°F to Lamoille County's 98 nights. Franklin County, VT, 35 km northwest, gets 88 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Lamoille County, VT | - | 179 nights | 98 nights | 4°F |
| Franklin County, VT | 35 km northwest | 165 nights | 88 nights | 6°F |
| Washington County, VT | 37 km south | 172 nights | 92 nights | 6°F |
| Chittenden County, VT | 38 km southwest | 151 nights | 78 nights | 11°F |
| Orleans County, VT | 39 km northeast | 185 nights | 103 nights | 2°F |
| Caledonia County, VT | 44 km east | 176 nights | 92 nights | 6°F |
| Grand Isle County, VT | 57 km west | 150 nights | 79 nights | 11°F |
Lamoille County within VT
Lamoille County ranks 3 of 14 VT counties for nights below 20°F. The most is Essex County, VT at 106 nights, with a 5°F average winter low. The fewest is Windham County, VT: 77 nights, winter lows near 13°F. At 804 ft, Lamoille County sits 170 ft below the state's median county elevation of 974 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.
The dates to be done by: when freeze season starts and ends.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Morrisville Stowe State Airport, VT, 9 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.