Frost Dates for Sherwood, OR

Based on data from Rex 1 S weather station, 5 miles away

Elevation: 197 ft

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. March 21
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 22

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 2
First Fall Frost November 12

Hard Freeze (28°F)

Last Spring Hard Freeze February 15
First Fall Hard Freeze December 10
45.36°N, 122.84°W © OpenStreetMap

Growing Season

246 Days March 21 to November 22

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
January45°40°35°
February50°43°36°
March55°47°38°
April61°51°41°
May66°57°47°
June72°62°51°
July81°68°56°
August81°69°56°
September75°63°52°
October62°54°45°
November51°45°39°
December44°39°34°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January6.4
February4.8
March5.5
April4.8
May4.5
June3.0
July1.1
August1.6
September3.7
October5.7
November6.8
December7.0

Sunrise / Sunset

Daylight Pacific Time (PT) Longest: 15h 28m · Shortest: 8h 32m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Pacific Time (PT))
Month Sunrise Sunset Daylight
January7:54 AM4:48 PM8h 55m
February7:21 AM5:31 PM10h 10m
March7:33 AM7:10 PM11h 37m
April6:33 AM7:50 PM13h 17m
May5:47 AM8:28 PM14h 41m
June5:29 AM8:55 PM15h 27m
July5:43 AM8:51 PM15h 08m
August6:18 AM8:13 PM13h 55m
September6:57 AM7:15 PM12h 18m
October7:36 AM6:17 PM10h 41m
November7:19 AM4:35 PM9h 16m
December7:51 AM4:24 PM8h 33m

Nearby Stations

Aurora State AP, OR March 16 - November 14 N Willamette Exp Stn, OR March 18 - November 13 Beaverton 2 Ssw, OR April 1 - November 6 Mcminnville Muni AP, OR April 15 - October 26 Mc Minnville, OR April 5 - November 7 Nature Park-Beaverton, OR February 11 - December 5

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