Will Pipes Freeze in Worcester County, MA? 58 nights a Year
Freeze nights in Worcester County
In a normal year Worcester County, MA gets 58 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 70% 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 | 137 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 58 nights |
| Insulated pipe in unheated space | 10°F | 22 nights |
| Inside the heated house | 0°F | 5 nights |
Foam-sleeving a bare pipe in unheated space takes it from 58 nights of risk to 22 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 10/21, last around 04/23. For 20°F: 11/25 to 03/25.
How cold Worcester County nights get
Average winter (Dec-Feb) low: 19°F; the coldest month, January, averages 16°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: 22 nights a year, and 5 nights below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 16°F | 18°F | 25°F | 36°F | 46°F | 55°F | 61°F | 60°F | 52°F | 41°F | 32°F | 23°F |
Worcester County next to its neighbours
Middlesex County, MA, 49 km northeast, gets 60 nights below 20°F to Worcester County's 58 nights. Providence County, RI, 57 km southeast, gets 49 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Worcester County, MA | - | 137 nights | 58 nights | 16°F |
| Middlesex County, MA | 49 km northeast | 143 nights | 60 nights | 16°F |
| Northeastern Connecticut Planning Region, CT | 52 km south | 147 nights | 60 nights | 17°F |
| Providence County, RI | 57 km southeast | 132 nights | 49 nights | 19°F |
| Hampshire County, MA | 60 km west | 151 nights | 66 nights | 14°F |
| Hampden County, MA | 60 km west | 141 nights | 58 nights | 16°F |
| Franklin County, MA | 61 km northwest | 154 nights | 66 nights | 14°F |
Worcester County within MA
Worcester County ranks 6 of 14 MA counties for nights below 20°F. The most is Berkshire County, MA at 75 nights, with a 16°F average winter low. The fewest is Nantucket County, MA: 18 nights, winter lows near 29°F. At 1,066 ft, Worcester County sits 913 ft above the state's median county elevation of 153 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 Worcester Regional Airport, MA, 7 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.