Frost Dates for South Lebanon, OR

Based on data from Lebanon weather station, 2 miles away

Elevation: 374 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 14
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 18

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 March 25
First Fall Frost November 7

Hard Freeze (28°F)

Last Spring Hard Freeze February 15
First Fall Hard Freeze December 10
44.51°N, 122.90°W © OpenStreetMap

Growing Season

249 Days March 14 to November 18

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 8b

Avg. annual minimum: 15 to 20°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
January49°43°37°
February53°45°37°
March58°48°39°
April62°52°42°
May69°58°47°
June76°64°52°
July85°70°55°
August86°71°56°
September79°65°51°
October65°55°45°
November54°47°40°
December47°42°36°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January8.5
February7.0
March8.4
April7.1
May6.7
June5.3
July2.1
August2.5
September5.9
October7.4
November8.6
December9.4

Sunrise / Sunset

Daylight Pacific Time (PT) Longest: 15h 22m · Shortest: 8h 38m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Pacific Time (PT))
Month Sunrise Sunset Daylight
January7:51 AM4:51 PM8h 60m
February7:20 AM5:32 PM10h 13m
March7:32 AM7:10 PM11h 38m
April6:34 AM7:49 PM13h 15m
May5:50 AM8:26 PM14h 36m
June5:31 AM8:52 PM15h 21m
July5:46 AM8:48 PM15h 03m
August6:20 AM8:12 PM13h 52m
September6:57 AM7:15 PM12h 17m
October7:35 AM6:18 PM10h 43m
November7:17 AM4:37 PM9h 20m
December7:48 AM4:27 PM8h 39m

Nearby Stations

Lacomb 3 Nne, OR April 26 - October 24 Foster Dam, OR April 12 - October 28 Corvallis State Univ, OR April 17 - October 28 Stayton, ORMarch 29 - November 6 Corvallis 10 Ssw, OR April 11 - October 30 Cascadia, ORApril 29 - October 13

Plan Your Garden with Planter

Now that you know your frost dates, use Planter to plan your veggie garden! Planter is an easy drag-and-drop garden planner with personalized planting schedules.

Try Planter For Free

Available everywhere: iOS, Android, web, and more!

Planter app garden planner preview