Will Pipes Freeze in Pearl River County, MS? 2 nights a Year
Freeze nights in Pearl River County
In a normal year Pearl River County, MS 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 9% of US counties.
Risk level: Rare. The risk season runs January to January, worst in January.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 27 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 11/21, last around 03/10. For 20°F: 01/07 to 01/23.
How cold Pearl River County nights get
Average winter (Dec-Feb) low: 40°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 | 54°F | 62°F | 69°F | 71°F | 71°F | 67°F | 56°F | 46°F | 41°F |
Pearl River County next to its neighbours
Stone County, MS, 45 km east, gets 3 nights below 20°F to Pearl River County's 2 nights. Hancock County, MS, 44 km south, gets 1 night.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Pearl River County, MS | - | 27 nights | 2 nights | 39°F |
| Hancock County, MS | 44 km south | 26 nights | 1 night | 40°F |
| Washington Parish, LA | 45 km west | 31 nights | 2 nights | 38°F |
| Stone County, MS | 45 km east | 38 nights | 3 nights | 37°F |
| Lamar County, MS | 48 km north | 33 nights | 2 nights | 38°F |
| St. Tammany Parish, LA | 54 km southwest | 24 nights | under 1 night | 41°F |
| Marion County, MS | 56 km northwest | 37 nights | 2 nights | 38°F |
Pearl River County within MS
Pearl River County ranks 78 of 82 MS counties for nights below 20°F. The most is Tishomingo County, MS at 24 nights, with a 30°F average winter low. The fewest is Harrison County, MS: under 1 night, winter lows near 45°F. At 194 ft, Pearl River County sits 108 ft below the state's median county elevation of 302 ft.
What to do here
- Watch the forecast for a sub-threshold night.
- That night: drip the faucet on an outside wall, open the sink cabinet.
A few nights a year catches houses that were never built for it: pipes in places that rarely freeze.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Poplarville Experiment Station, MS, 8 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.