Will Pipes Freeze in Tillamook County, OR? under 1 night a Year
Freeze nights in Tillamook County
In a normal year Tillamook County, OR 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 4% of US counties.
Risk level: Rare.
It depends where the pipe is
| Pipe | Freezes near | Nights a year |
|---|---|---|
| Outdoor spigot, open crawlspace | 32°F | 34 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 11/04, last around 04/05. For 20°F: 12/29 to 12/31.
How cold Tillamook County nights get
Average winter (Dec-Feb) low: 38°F; the coldest month, February, averages 37°F overnight. 7 months normally bring at least one night below 32°F (Jan, Feb, Mar, Apr, Oct, Nov, Dec).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 38°F | 37°F | 38°F | 40°F | 44°F | 47°F | 50°F | 50°F | 48°F | 43°F | 40°F | 38°F |
Tillamook County next to its neighbours
Yamhill County, OR, 42 km southeast, gets 2 nights below 20°F to Tillamook County's under 1 night.
| County | Distance | Below 32°F | Below 20°F | Jan low |
|---|---|---|---|---|
| Tillamook County, OR | - | 34 nights | under 1 night | 38°F |
| Yamhill County, OR | 42 km southeast | 46 nights | 2 nights | 35°F |
| Washington County, OR | 53 km east | 60 nights | 4 nights | 33°F |
| Clatsop County, OR | 63 km north | 30 nights | under 1 night | 38°F |
| Polk County, OR | 68 km southeast | 64 nights | 3 nights | 34°F |
| Columbia County, OR | 75 km northeast | 85 nights | 7 nights | 32°F |
| Lincoln County, OR | 91 km south | 13 nights | under 1 night | 41°F |
Tillamook County within OR
Tillamook County ranks 35 of 36 OR counties for nights below 20°F. The most is Baker County, OR at 76 nights, with a 20°F average winter low. The fewest is Lincoln County, OR: under 1 night, winter lows near 40°F. At 191 ft, Tillamook County sits 1,826 ft below the state's median county elevation of 2,017 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 Tillamook (6 mi SE), OR, 3 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.