Frost Dates for Scappoose Ind AP, OR

Elevation: 17 m

Frost Dates

Last Spring Frost (50%) A 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. April 10
First Fall Frost (50%) A 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. November 2

30% Probability

Only a 30% chance of frost remaining by this date. Use these dates for a safer planting window, especially for tender plants sensitive to cold.
Last Spring Frost April 19
First Fall Frost October 26

Hard Freeze (28°F)

Last Spring Hard Freeze March 3
First Fall Hard Freeze November 19
45.77°N, 122.86°W © OpenStreetMap

Growing Season

206 Days April 10 to November 2

USDA Hardiness Zone

Hardiness zones indicate which perennial plants can survive winter in your area. For annual vegetables, frost dates and growing season length matter more than hardiness zone.
Zone 8a

Avg. annual minimum: 10 to 15°F

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Csb Warm-Summer Mediterranean

Warm, dry summers and mild, wet winters. Similar to hot-summer Mediterranean but cooler. Great for a wide range of vegetables and fruit trees with moderate water needs.

Köppen climate map

Temperature

Avg High Avg Temp Avg Low Light Frost (32°F)
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January47°40°34°
February51°43°34°
March56°47°37°
April61°51°40°
May68°57°46°
June73°62°51°
July81°68°55°
August82°68°54°
September76°63°50°
October64°53°43°
November53°45°37°
December46°40°34°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January5.3
February4.2
March4.3
April3.4
May3.3
June2.3
July1.1
August1.3
September2.4
October3.6
November5.1
December5.9

Sunrise / Sunset

Daylight Pacific Time (PT) Longest: 15h 32m · Shortest: 8h 28m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Pacific Time (PT))
Month Sunrise Sunset Daylight
January7:55 AM4:47 PM8h 51m
February7:22 AM5:30 PM10h 08m
March7:33 AM7:09 PM11h 37m
April6:32 AM7:51 PM13h 18m
May5:46 AM8:30 PM14h 44m
June5:27 AM8:57 PM15h 30m
July5:41 AM8:53 PM15h 11m
August6:17 AM8:14 PM13h 57m
September6:57 AM7:15 PM12h 18m
October7:37 AM6:17 PM10h 40m
November7:20 AM4:33 PM9h 13m
December7:52 AM4:22 PM8h 30m

Nearby Stations

Saint Helens Rfd, OR April 18 - November 7 Vancouver 4 Nne, WA April 26 - October 18 Vancouver Pearson AP, WA March 29 - November 9 Battle Ground, WA April 26 - October 16 Portland-Hillsboro AP, OR April 16 - October 23 Vernonia #2, ORMay 8 - October 1

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