Will Pipes Freeze in Tangipahoa Parish, LA? 1 night a Year
Freeze nights in Tangipahoa Parish
In a normal year Tangipahoa Parish, LA gets 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 7% of US counties.
Risk level: Rare. The risk season runs January to January, worst in January.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 33 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 1 night |
| 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 1 night 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 11/19, last around 03/08. For 20°F: 01/08 to 01/19.
How cold Tangipahoa Parish nights get
Average winter (Dec-Feb) low: 40°F; the coldest month, January, averages 39°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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 39°F | 42°F | 49°F | 55°F | 62°F | 69°F | 71°F | 71°F | 67°F | 56°F | 46°F | 41°F |
Tangipahoa Parish next to its neighbours
St. Helena Parish, LA, 37 km northwest, gets 2 nights below 20°F to Tangipahoa Parish's 1 night. St. John the Baptist Parish, LA, 54 km south, gets under 1 night.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Tangipahoa Parish, LA | - | 33 nights | 1 night | 39°F |
| St. Helena Parish, LA | 37 km northwest | 34 nights | 2 nights | 38°F |
| Livingston Parish, LA | 37 km southwest | 29 nights | 1 night | 39°F |
| Washington Parish, LA | 43 km northeast | 31 nights | 2 nights | 38°F |
| St. Tammany Parish, LA | 49 km southeast | 24 nights | under 1 night | 41°F |
| St. John the Baptist Parish, LA | 54 km south | 13 nights | under 1 night | 43°F |
| Pike County, MS | 62 km north | 31 nights | 2 nights | 38°F |
Tangipahoa Parish within LA
Tangipahoa Parish ranks 30 of 64 LA counties for nights below 20°F. The most is Claiborne Parish, LA at 5 nights, with a 34°F average winter low. The fewest is Plaquemines Parish, LA: none, winter lows near 49°F. At 116 ft, Tangipahoa Parish sits close to the state's median county elevation of 70 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.
Why rare cold catches people out - freezes 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 Hammond (5 mi E), LA, 13 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.