Will Pipes Freeze in Hillsborough County, FL? No Normal Risk Nights
Freeze nights in Hillsborough County
A normal winter in Hillsborough County, FL never drops to 20°F, the point where bare pipes in unheated space start to freeze.
Risk level: No normal risk nights.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | under 1 night |
| Bare pipe in garage, attic or outside wall | 20°F | none |
| 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 01/12, last around 01/20.
How cold Hillsborough County nights get
Average winter (Dec-Feb) low: 54°F; the coldest month, January, averages 52°F overnight. 1 month normally bring at least one night below 32°F (Jan).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 52°F | 55°F | 59°F | 64°F | 70°F | 74°F | 76°F | 76°F | 75°F | 69°F | 60°F | 56°F |
Hillsborough County next to its neighbours
The six closest counties all sit within a night of Hillsborough County.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Hillsborough County, FL | - | under 1 night | none | 52°F |
| Pinellas County, FL | 41 km west | under 1 night | none | 53°F |
| Manatee County, FL | 46 km south | 2 nights | none | 52°F |
| Pasco County, FL | 48 km north | 10 nights | under 1 night | 46°F |
| Polk County, FL | 68 km east | 2 nights | none | 51°F |
| Hardee County, FL | 71 km southeast | 5 nights | none | 48°F |
| Sarasota County, FL | 74 km south | 2 nights | none | 51°F |
Hillsborough County within FL
Hillsborough County ranks 58 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 9 ft, Hillsborough County sits close to the state's median county elevation of 54 ft.
What to do here
- Disconnect hoses in a cold snap; no routine prep needed.
Why the rare freeze catches houses unprepared: freezes in warm places.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Tampa International Airport, FL, 18 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.