Will Pipes Freeze in Johnson County, GA? 5 nights a Year
Freeze nights in Johnson County
In a normal year Johnson County, GA gets 5 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 17% 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 | 49 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 5 nights |
| Insulated pipe in unheated space | 10°F | none |
| Inside the heated house | 0°F | none |
Foam-sleeving a bare pipe in unheated space takes it from 5 nights of risk to none. 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 11/08, last around 03/21. For 20°F: 01/01 to 02/02.
How cold Johnson County nights get
Average winter (Dec-Feb) low: 36°F; the coldest month, January, averages 35°F overnight. 7 months normally bring at least one night below 32°F (Jan, Feb, Mar, Apr, Oct, Nov, Dec).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 35°F | 37°F | 43°F | 50°F | 58°F | 67°F | 70°F | 69°F | 63°F | 52°F | 42°F | 36°F |
Johnson County next to its neighbours
Washington County, GA, 33 km north, gets 4 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Johnson County, GA | - | 49 nights | 5 nights | 35°F |
| Treutlen County, GA | 33 km south | 48 nights | 4 nights | 35°F |
| Washington County, GA | 33 km north | 47 nights | 4 nights | 35°F |
| Emanuel County, GA | 36 km east | 39 nights | 3 nights | 36°F |
| Laurens County, GA | 42 km southwest | 45 nights | 3 nights | 35°F |
| Jefferson County, GA | 46 km northeast | 47 nights | 4 nights | 34°F |
| Wilkinson County, GA | 49 km west | 38 nights | 3 nights | 35°F |
Johnson County within GA
Johnson County ranks 73 of 159 GA counties for nights below 20°F. The most is Union County, GA at 28 nights, with a 27°F average winter low. The fewest is Glynn County, GA: under 1 night, winter lows near 46°F. At 341 ft, Johnson County sits 79 ft below the state's median county elevation of 420 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.
Few hard nights means pipes are rarely built for them; see freezes in warm places.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Kite, GA, 12 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.