Will Pipes Freeze in Jasper County, SC? 2 nights a Year
Freeze nights in Jasper County
In a normal year Jasper County, SC gets 2 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 11% of US counties.
Risk level: Occasional. The risk season runs December to February, worst in January.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 26 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 2 nights |
| Insulated pipe in unheated space | 10°F | under 1 night |
| Inside the heated house | 0°F | none |
Foam-sleeving a bare pipe in unheated space takes it from 2 nights of risk to under 1 night. 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 12/03, last around 02/28. For 20°F: 01/12 to 01/16.
How cold Jasper County nights get
Average winter (Dec-Feb) low: 41°F; the coldest month, January, averages 39°F overnight. 5 months normally bring at least one night below 32°F (Jan, Feb, Mar, Nov, Dec).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 39°F | 42°F | 48°F | 55°F | 63°F | 70°F | 73°F | 73°F | 68°F | 58°F | 48°F | 42°F |
Jasper County next to its neighbours
Colleton County, SC, 58 km northeast, gets 3 nights below 20°F to Jasper County's 2 nights. Effingham County, GA, 31 km west, gets 1 night.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Jasper County, SC | - | 26 nights | 2 nights | 39°F |
| Effingham County, GA | 31 km west | 27 nights | 1 night | 38°F |
| Beaufort County, SC | 32 km east | 13 nights | under 1 night | 41°F |
| Hampton County, SC | 40 km north | 30 nights | 2 nights | 39°F |
| Chatham County, GA | 50 km south | 21 nights | under 1 night | 40°F |
| Colleton County, SC | 58 km northeast | 44 nights | 3 nights | 35°F |
| Bryan County, GA | 60 km southwest | 22 nights | under 1 night | 40°F |
Jasper County within SC
Jasper County ranks 39 of 46 SC counties for nights below 20°F. The most is Cherokee County, SC at 18 nights, with a 28°F average winter low. The fewest is Charleston County, SC: under 1 night, winter lows near 45°F. At 48 ft, Jasper County sits 213 ft below the state's median county elevation of 260 ft.
What to do here
- Keep a night-of routine: drip, open cabinets, keep the heat at 55F or above.
- Foam-sleeve any pipe in the garage or crawlspace once; it is cheap and lasts years.
Few hard nights means pipes are rarely built for them; see freezes in warm places.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Beaufort McAs, SC, 29 km away (fair 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.