Will Pipes Freeze in Colusa County, CA? under 1 night a Year
Freeze nights in Colusa County
In a normal year Colusa County, CA 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 2% of US counties.
Risk level: Rare.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 17 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 12/01, last around 02/14.
How cold Colusa County nights get
Average winter (Dec-Feb) low: 39°F; the coldest month, December, averages 38°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 | 41°F | 44°F | 47°F | 54°F | 59°F | 61°F | 59°F | 56°F | 49°F | 42°F | 38°F |
Colusa County next to its neighbours
Lake County, CA, 44 km west, gets 2 nights below 20°F to Colusa County's under 1 night.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Colusa County, CA | - | 17 nights | under 1 night | 39°F |
| Lake County, CA | 44 km west | 64 nights | 2 nights | 33°F |
| Sutter County, CA | 49 km east | 16 nights | under 1 night | 39°F |
| Glenn County, CA | 49 km north | 52 nights | 1 night | 35°F |
| Yolo County, CA | 63 km southeast | 12 nights | none | 38°F |
| Napa County, CA | 75 km south | 17 nights | none | 39°F |
| Butte County, CA | 77 km northeast | 22 nights | under 1 night | 39°F |
Colusa County within CA
Colusa County ranks 40 of 58 CA counties for nights below 20°F. The most is Mono County, CA at 130 nights, with a 13°F average winter low. The fewest is Orange County, CA: none, winter lows near 46°F. At 118 ft, Colusa County sits 1,180 ft below the state's median county elevation of 1,298 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 Colusa (2 mi SSW), CA, 18 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.