Will Pipes Freeze in Humphreys County, MS? 4 nights a Year
Freeze nights in Humphreys County
In a normal year Humphreys County, MS gets 4 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 14% of US counties.
Risk level: Occasional. The risk season runs December to January, worst in January.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 39 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 4 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 4 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 03/03. For 20°F: 01/06 to 01/23.
How cold Humphreys County nights get
Average winter (Dec-Feb) low: 38°F; the coldest month, January, averages 36°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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 36°F | 40°F | 47°F | 54°F | 64°F | 71°F | 74°F | 72°F | 66°F | 55°F | 45°F | 39°F |
Humphreys County next to its neighbours
Holmes County, MS, 40 km east, gets 10 nights below 20°F to Humphreys County's 4 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Humphreys County, MS | - | 39 nights | 4 nights | 36°F |
| Sharkey County, MS | 39 km southwest | 42 nights | 3 nights | 37°F |
| Holmes County, MS | 40 km east | 60 nights | 10 nights | 31°F |
| Washington County, MS | 42 km west | 42 nights | 4 nights | 35°F |
| Yazoo County, MS | 43 km south | 42 nights | 3 nights | 37°F |
| Leflore County, MS | 51 km northeast | 44 nights | 4 nights | 35°F |
| Sunflower County, MS | 53 km north | 44 nights | 4 nights | 34°F |
Humphreys County within MS
Humphreys County ranks 57 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 105 ft, Humphreys County sits 197 ft below 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.
Whether foam sleeves are enough here: insulate or heat tape?.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Belzoni, MS, 6 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.