Will Pipes Freeze in LaSalle Parish, LA? 3 nights a Year
Freeze nights in LaSalle Parish
In a normal year LaSalle Parish, LA gets 3 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 11% of US counties.
Risk level: Occasional. 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 | 41 nights |
| Bare pipe in garage, attic or outside wall | 20°F | 3 nights |
| Insulated pipe in unheated space | 10°F | under 1 night |
| Inside the heated house | 0°F | none |
Foam-sleeving a bare pipe in unheated space takes it from 3 nights of risk to under 1 night. 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 11/12, last around 03/19. For 20°F: 01/04 to 01/25.
How cold LaSalle Parish nights get
Average winter (Dec-Feb) low: 38°F; the coldest month, January, averages 36°F overnight. 6 months normally bring at least one night below 32°F (Jan, Feb, Mar, Oct, Nov, Dec).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 36°F | 40°F | 47°F | 53°F | 62°F | 69°F | 72°F | 71°F | 65°F | 54°F | 44°F | 38°F |
LaSalle Parish next to its neighbours
Catahoula Parish, LA, 30 km east, gets 2 nights.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| LaSalle Parish, LA | - | 41 nights | 3 nights | 36°F |
| Catahoula Parish, LA | 30 km east | 32 nights | 2 nights | 37°F |
| Grant Parish, LA | 39 km west | 22 nights | 1 night | 39°F |
| Caldwell Parish, LA | 47 km north | 38 nights | 2 nights | 37°F |
| Winn Parish, LA | 54 km northwest | 45 nights | 3 nights | 36°F |
| Concordia Parish, LA | 56 km southeast | 32 nights | 2 nights | 37°F |
| Rapides Parish, LA | 65 km southwest | 30 nights | 2 nights | 39°F |
LaSalle Parish within LA
LaSalle Parish ranks 13 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 190 ft, LaSalle Parish sits 120 ft above the state's median county elevation of 70 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.
Which pipe gets which threshold: the 32, 20, 10 and 0 rule.
Where this comes from
NOAA 1991-2020 climate normals, blended from 3 nearby stations and adjusted for elevation; closest is Jena, LA, 3 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.