Will Pipes Freeze in Calhoun County, MS? 9 nights a Year
Freeze nights in Calhoun County
In a normal year Calhoun County, MS gets 9 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 25% 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 | 65 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 9 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 9 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 11/05, last around 03/28. For 20°F: 12/21 to 02/11.
How cold Calhoun County nights get
Average winter (Dec-Feb) low: 34°F; the coldest month, January, averages 32°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: under 1 night a year, and none below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 32°F | 35°F | 42°F | 50°F | 60°F | 68°F | 71°F | 70°F | 63°F | 51°F | 40°F | 35°F |
Calhoun County next to its neighbours
Yalobusha County, MS, 35 km west, gets 12 nights below 20°F to Calhoun County's 9 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Calhoun County, MS | - | 65 nights | 9 nights | 32°F |
| Yalobusha County, MS | 35 km west | 73 nights | 12 nights | 30°F |
| Chickasaw County, MS | 36 km east | 69 nights | 13 nights | 32°F |
| Webster County, MS | 36 km south | 70 nights | 11 nights | 32°F |
| Pontotoc County, MS | 42 km northeast | 61 nights | 10 nights | 32°F |
| Grenada County, MS | 47 km southwest | 70 nights | 11 nights | 31°F |
| Lafayette County, MS | 48 km north | 68 nights | 12 nights | 31°F |
Calhoun County within MS
Calhoun County ranks 20 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 365 ft, Calhoun County sits 64 ft above the state's median county elevation of 302 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.
Which pipe gets which threshold: the 32, 20, 10 and 0 rule.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Calhoun City, MS, 9 km away (close match). A normal year, not tonight's forecast: check the forecast low for the night itself. Why elevation is part of the blend: how county numbers are made.