Will Pipes Freeze in McMinn County, TN? 17 nights a Year
Freeze nights in McMinn County
In a normal year McMinn County, TN gets 17 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 34% 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 | 85 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 17 nights |
| Insulated pipe in unheated space | 10°F | 3 nights |
| Inside the heated house | 0°F | under 1 night |
Foam-sleeving a bare pipe in unheated space takes it from 17 nights of risk to 3 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 10/31, last around 04/06. For 20°F: 12/08 to 02/25.
How cold McMinn County nights get
Average winter (Dec-Feb) low: 30°F; the coldest month, January, averages 28°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: 3 nights a year, and under 1 night below zero.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 28°F | 31°F | 37°F | 45°F | 55°F | 63°F | 68°F | 66°F | 60°F | 47°F | 36°F | 31°F |
McMinn County next to its neighbours
Meigs County, TN, 20 km northwest, gets 19 nights below 20°F to McMinn County's 17 nights. Bradley County, TN, 37 km southwest, gets 17 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| McMinn County, TN | - | 85 nights | 17 nights | 28°F |
| Meigs County, TN | 20 km northwest | 85 nights | 19 nights | 28°F |
| Monroe County, TN | 34 km east | 86 nights | 19 nights | 28°F |
| Rhea County, TN | 36 km northwest | 80 nights | 17 nights | 28°F |
| Polk County, TN | 36 km south | 83 nights | 18 nights | 29°F |
| Bradley County, TN | 37 km southwest | 80 nights | 17 nights | 29°F |
| Loudon County, TN | 44 km northeast | 76 nights | 13 nights | 28°F |
McMinn County within TN
McMinn County ranks 65 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 885 ft, McMinn County sits close to 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 Athens, TN, 3 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.