Will Pipes Freeze in Washington County, VT? 92 nights a Year
Freeze nights in Washington County
In a normal year Washington County, VT gets 92 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 88% 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 | 172 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 92 nights |
| Insulated pipe in unheated space | 10°F | 55 nights |
| Inside the heated house | 0°F | 27 nights |
Foam-sleeving a bare pipe in unheated space takes it from 92 nights of risk to 55 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 10/09, last around 05/05. For 20°F: 11/14 to 04/04.
How cold Washington County nights get
Average winter (Dec-Feb) low: 10°F; the coldest month, January, averages 6°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: 55 nights a year, and 27 nights below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 6°F | 8°F | 17°F | 30°F | 42°F | 52°F | 56°F | 55°F | 47°F | 36°F | 26°F | 15°F |
Washington County next to its neighbours
Orange County, VT, 36 km southeast, gets 96 nights below 20°F to Washington County's 92 nights. Chittenden County, VT, 42 km northwest, gets 78 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Washington County, VT | - | 172 nights | 92 nights | 6°F |
| Orange County, VT | 36 km southeast | 178 nights | 96 nights | 6°F |
| Lamoille County, VT | 37 km north | 179 nights | 98 nights | 4°F |
| Chittenden County, VT | 42 km northwest | 151 nights | 78 nights | 11°F |
| Caledonia County, VT | 45 km northeast | 176 nights | 92 nights | 6°F |
| Addison County, VT | 50 km southwest | 159 nights | 82 nights | 9°F |
| Orleans County, VT | 68 km northeast | 185 nights | 103 nights | 2°F |
Washington County within VT
Washington County ranks 6 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 911 ft, Washington County sits 64 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.
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 Montpelier 2, VT, 2 km away (close 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.