John and Carolena Heimuller Farmstead · Photo: Jon Roanhaus · CC BY-SA 3.0Scappoose’s winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 81°, a January night drops to 34°, and snow is almost unheard of.
A year in Scappoose at a glance
Each month’s typical high and low, and what it brings.
What stands out about Scappoose’s climate
Compared with towns across the U.S., with Scappoose’s place in Oregon beside it.
What a year in Scappoose feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 209 frost-free days a year
In half of years the last 32° night comes by April 10 and the first by November 2. Frost and day counts come from NOAA’s station at Scappoose Ind Airport, 1.2 miles from the town’s center, at about the same height.
The 2023 USDA map puts Scappoose’s center in zone 8b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 18°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 41 inches of rain a year
December is the wettest month and July the driest. Rain falls on about 163 days a year. Snow is rare: about 0.8" in a normal year at Vancouver 4 Nne, WA, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Scappoose
93% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Scappoose Ind Airport.
Living with Scappoose’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
209 frost-free days in zone 8b. The last frost comes by Apr 10 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 2.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August, September and October. 1.2 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Scappoose from natural hazards, earthquakes are the largest share (51%); heat waves, cold waves, winter storms and ice storms together are 17%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Scappoose and similar climates
TownRatings has no climate map of the towns around Scappoose yet.
Climates most like Scappoose’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Scappoose, OR | 34° | 81° | 41" | 0.8" |
| Scotts Valley, CA | 39° | 79° | 37" | 0.0" |
| Swannanoa, NC | 27° | 83° | 48" | 2.1" |
| Brigantine, NJ | 28° | 83° | 45" | 10" |
| Marysville, WA | 36° | 75° | 44" | 3.0" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Scappoose averaged 1.3° warmer than the 1900s. The biggest change is in January (+2.9°).
A smaller shift than in 56% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Scappoose compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Scappoose’s place among Oregon’s.
Scappoose weather by month
Highs, lows and precipitation from NOAA’s grid at Scappoose’s center; snow, wet days and snow on the ground from Vancouver 4 Nne, WA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 46° | 34° | 6.1" | 0.5" | 20 | 1 | 33° – 45° |
| February | 51° | 35° | 4.4" | 0.1" | 16 | 0 | 38° – 48° |
| March | 56° | 37° | 4.3" | 0.0" | 18 | 0 | 43° – 52° |
| April | 61° | 41° | 3.2" | 0.0" | 17 | 0 | 46° – 55° |
| May | 68° | 46° | 2.3" | 0.0" | 14 | 0 | 52° – 61° |
| June | 73° | 51° | 1.5" | 0.0" | 10 | 0 | 58° – 68° |
| July | 81° | 55° | 0.4" | 0.0" | 4 | 0 | 62° – 71° |
| August | 82° | 54° | 0.6" | 0.0" | 4 | 0 | 65° – 72° |
| September | 76° | 50° | 1.5" | 0.0" | 8 | 0 | 59° – 65° |
| October | 63° | 43° | 3.5" | 0.0" | 14 | 0 | 49° – 58° |
| November | 52° | 38° | 6.2" | 0.0" | 19 | 0 | 39° – 50° |
| December | 46° | 34° | 7.0" | 0.2" | 20 | 0 | 35° – 43° |
| Year | 63° | 43° | 40.9" | 0.8" | 163 | 1 |
How much a month can swing
A normal is an average. January swings the most: from 1991 to 2020 its average ranged from 33° to 45°. September is the most reliable, staying within 6°.
Where Scappoose’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Scappoose’s center.
- Snow: Vancouver 4 Nne, WA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Scappoose Ind Airport, 1.2 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Scappoose’s climate
What is the weather like in Scappoose?
A typical July afternoon reaches 81°, a January night drops to 34°, and snow is almost unheard of. Milder January nights than 79% of U.S. towns; cooler July afternoons than 89% of U.S. towns.
How cold does it get in Scappoose in winter?
December nights average 34°. About 61 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 35°.
How much snow does Scappoose get?
About 0.8 inches in a normal winter at Vancouver 4 Nne, WA, so most winters see none.
How hot does it get in Scappoose?
July, with a typical high of 81° and a low of 55°. About 14 days a year reach 90° and 1 reach 100° (Scappoose Ind Airport).
When is the first and last frost in Scappoose?
In half of years the last spring frost (32°) comes by April 10 and the first fall frost by November 2, about 209 frost-free days, at Scappoose Ind Airport.
What growing zone is Scappoose in?
Zone 8b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 18°.
What is the best time of year to visit Scappoose?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Scappoose getting warmer?
Yes: 1991–2020 averaged 1.3° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 56% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Scappoose.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.