Will Pipes Freeze in Gloucester County, NJ? 24 nights a Year
Freeze nights in Gloucester County
In a normal year Gloucester County, NJ gets 24 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 40% of US counties.
Risk level: Regular. 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 | 99 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 24 nights |
| Insulated pipe in unheated space | 10°F | 3 nights |
| Inside the heated house | 0°F | under 1 night |
Foam-sleeving a bare pipe in unheated space takes it from 24 nights of risk to 3 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 11/01, last around 04/08. For 20°F: 12/10 to 03/04.
How cold Gloucester County nights get
Average winter (Dec-Feb) low: 27°F; the coldest month, January, averages 25°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: 3 nights a year, and under 1 night below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 25°F | 26°F | 33°F | 42°F | 52°F | 62°F | 67°F | 66°F | 60°F | 46°F | 37°F | 30°F |
Gloucester County next to its neighbours
Camden County, NJ, 18 km northeast, gets 27 nights below 20°F to Gloucester County's 24 nights. Salem County, NJ, 25 km southwest, gets 22 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Gloucester County, NJ | - | 99 nights | 24 nights | 25°F |
| Camden County, NJ | 18 km northeast | 104 nights | 27 nights | 25°F |
| Salem County, NJ | 25 km southwest | 94 nights | 22 nights | 25°F |
| Delaware County, PA | 31 km northwest | 74 nights | 15 nights | 26°F |
| Philadelphia County, PA | 32 km north | 77 nights | 18 nights | 27°F |
| Cumberland County, NJ | 44 km south | 106 nights | 29 nights | 24°F |
| Burlington County, NJ | 45 km northeast | 108 nights | 30 nights | 24°F |
Gloucester County within NJ
Gloucester County ranks 18 of 21 NJ counties for nights below 20°F. The most is Sussex County, NJ at 58 nights, with a 20°F average winter low. The fewest is Hudson County, NJ: 20 nights, winter lows near 28°F. At 138 ft, Gloucester County sits close to the state's median county elevation of 89 ft.
What to do here
- Insulate every pipe in unheated space before the season starts.
- Heat tape on the runs you cannot insulate well.
- Shut off and drain outdoor spigots for the season.
When to have the house ready: when freeze season starts.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Glassboro (2 mi NE), NJ, 5 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.