Will Pipes Freeze in Northwest Hills Planning Region, CT? 69 nights a Year
Freeze nights in Northwest Hills Planning Region
In a normal year Northwest Hills Planning Region, CT gets 69 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 76% 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 | 153 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 69 nights |
| Insulated pipe in unheated space | 10°F | 30 nights |
| Inside the heated house | 0°F | 9 nights |
Foam-sleeving a bare pipe in unheated space takes it from 69 nights of risk to 30 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 10/11, last around 05/03. For 20°F: 11/17 to 03/31.
How cold Northwest Hills Planning Region nights get
Average winter (Dec-Feb) low: 17°F; the coldest month, January, averages 14°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: 30 nights a year, and 9 nights below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 14°F | 15°F | 23°F | 34°F | 45°F | 54°F | 59°F | 58°F | 51°F | 39°F | 30°F | 21°F |
Northwest Hills Planning Region next to its neighbours
Berkshire County, MA, 57 km north, gets 75 nights below 20°F to Northwest Hills Planning Region's 69 nights. Naugatuck Valley Planning Region, CT, 39 km south, gets 48 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Northwest Hills Planning Region, CT | - | 153 nights | 69 nights | 14°F |
| Naugatuck Valley Planning Region, CT | 39 km south | 131 nights | 48 nights | 19°F |
| Dutchess County, NY | 44 km west | 144 nights | 59 nights | 16°F |
| Capitol Planning Region, CT | 54 km east | 123 nights | 45 nights | 20°F |
| Columbia County, NY | 55 km northwest | 149 nights | 67 nights | 15°F |
| Berkshire County, MA | 57 km north | 161 nights | 75 nights | 13°F |
| Hampden County, MA | 58 km northeast | 141 nights | 58 nights | 16°F |
Northwest Hills Planning Region within CT
Northwest Hills Planning Region ranks 1 of 9 CT counties for nights below 20°F. The fewest is Greater Bridgeport Planning Region, CT: 28 nights, winter lows near 26°F. At 1,371 ft, Northwest Hills Planning Region sits 1,078 ft above the state's median county elevation of 293 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 Norfolk (2 mi SW), CT, 13 km away (close match). A normal year, not tonight's forecast: check the forecast low for the night itself. What a "fair" or "distant" station match means is in the method guide.