Will Pipes Freeze in Coffee County, TN? 25 nights a Year
Freeze nights in Coffee County
In a normal year Coffee County, TN gets 25 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 41% 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 | 93 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 25 nights |
| Insulated pipe in unheated space | 10°F | 4 nights |
| Inside the heated house | 0°F | under 1 night |
Foam-sleeving a bare pipe in unheated space takes it from 25 nights of risk to 4 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 10/24, last around 04/13. For 20°F: 11/25 to 03/03.
How cold Coffee County nights get
Average winter (Dec-Feb) low: 28°F; the coldest month, January, averages 27°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, December: 4 nights a year, and under 1 night below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 27°F | 29°F | 36°F | 44°F | 53°F | 61°F | 65°F | 64°F | 57°F | 45°F | 34°F | 30°F |
Coffee County next to its neighbours
Grundy County, TN, 35 km east, gets 30 nights below 20°F to Coffee County's 25 nights. Warren County, TN, 34 km northeast, gets 14 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Coffee County, TN | - | 93 nights | 25 nights | 27°F |
| Moore County, TN | 34 km southwest | 93 nights | 25 nights | 27°F |
| Warren County, TN | 34 km northeast | 69 nights | 14 nights | 31°F |
| Bedford County, TN | 35 km west | 77 nights | 17 nights | 29°F |
| Grundy County, TN | 35 km east | 102 nights | 30 nights | 26°F |
| Cannon County, TN | 36 km north | 93 nights | 25 nights | 27°F |
| Franklin County, TN | 37 km south | 74 nights | 16 nights | 30°F |
Coffee County within TN
Coffee County ranks 23 of 95 TN counties for nights below 20°F. The most is Johnson County, TN at 41 nights, with a 25°F average winter low. The fewest is Hamilton County, TN: 9 nights, winter lows near 34°F. At 1,059 ft, Coffee County sits 192 ft above the state's median county elevation of 867 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.
Why 20°F is the line for a garage pipe: how cold before pipes freeze.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Manchester #2, TN, 3 km away (close 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.