Will Pipes Freeze in Amador County, CA? 1 night a Year
Freeze nights in Amador County
In a normal year Amador County, CA 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 6% of US counties.
Risk level: Rare.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 31 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 12/11, last around 03/04.
How cold Amador County nights get
Average winter (Dec-Feb) low: 37°F; the coldest month, December, averages 36°F overnight. 6 months normally bring at least one night below 32°F (Jan, Feb, Mar, Apr, Nov, Dec).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 37°F | 39°F | 40°F | 43°F | 49°F | 55°F | 61°F | 60°F | 57°F | 50°F | 41°F | 36°F |
Amador County next to its neighbours
El Dorado County, CA, 39 km north, gets 5 nights below 20°F to Amador County's 1 night. Sacramento County, CA, 60 km west, gets none.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Amador County, CA | - | 31 nights | 1 night | 37°F |
| Calaveras County, CA | 29 km south | 35 nights | under 1 night | 36°F |
| El Dorado County, CA | 39 km north | 87 nights | 5 nights | 33°F |
| Sacramento County, CA | 60 km west | 10 nights | none | 40°F |
| Placer County, CA | 69 km north | 58 nights | 2 nights | 35°F |
| Tuolumne County, CA | 76 km southeast | 91 nights | 11 nights | 31°F |
| Alpine County, CA | 77 km east | 189 nights | 58 nights | 22°F |
Amador County within CA
Amador County ranks 25 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 2,302 ft, Amador County sits 1,004 ft above 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.
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 Sutter Hill Cdf, CA, 15 km away (fair 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.