Will Pipes Freeze in Nassau County, FL? under 1 night a Year
Freeze nights in Nassau County
In a normal year Nassau County, FL gets under 1 night at or below 20°F, the point where bare pipes in a garage, attic or outside wall start to freeze. That is more than 4% of US counties.
Risk level: Rare.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 14 nights |
| Bare pipe in garage, attic or outside wall | 20°F | under 1 night |
| Insulated pipe in unheated space | 10°F | none |
| Inside the heated house | 0°F | none |
Month by month
Nights at or below 20°F in a normal year.
First 32°F night is usually around 12/07, last around 02/25. For 20°F: 01/20 to 01/24.
How cold Nassau County nights get
Average winter (Dec-Feb) low: 45°F; the coldest month, January, averages 43°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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 43°F | 46°F | 51°F | 57°F | 64°F | 71°F | 73°F | 73°F | 71°F | 62°F | 52°F | 46°F |
Nassau County next to its neighbours
Camden County, GA, 36 km north, gets 2 nights below 20°F to Nassau County's under 1 night.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Nassau County, FL | - | 14 nights | under 1 night | 43°F |
| Duval County, FL | 32 km south | 7 nights | under 1 night | 46°F |
| Camden County, GA | 36 km north | 27 nights | 2 nights | 39°F |
| Charlton County, GA | 41 km northwest | 17 nights | under 1 night | 44°F |
| Baker County, FL | 60 km southwest | 26 nights | 1 night | 40°F |
| Brantley County, GA | 69 km north | 40 nights | 4 nights | 37°F |
| Clay County, FL | 70 km south | 14 nights | under 1 night | 45°F |
Nassau County within FL
Nassau County ranks 26 of 67 FL counties for nights below 20°F. The most is Holmes County, FL at 2 nights, with a 40°F average winter low. The fewest is Broward County, FL: none, winter lows near 60°F. At 20 ft, Nassau County sits close to the state's median county elevation of 54 ft.
What to do here
- Watch the forecast for a sub-threshold night.
- That night: drip the faucet on an outside wall, open the sink cabinet.
A few nights a year catches houses that were never built for it: pipes in places that rarely freeze.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Jacksonville, FL, 15 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.