Frost Dates for Jacksonville, OR

Based on data from Medford Rogue Vly AP weather station, 7 miles away

Elevation: 1565 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. April 8
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. October 29

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 18
First Fall Frost October 23

Hard Freeze (28°F)

Last Spring Hard Freeze March 10
First Fall Hard Freeze November 13
42.31°N, 122.97°W © OpenStreetMap

Growing Season

204 Days April 8 to October 29

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.
Csa Hot-Summer Mediterranean

Hot, dry summers and mild, wet winters. Classic Mediterranean climate ideal for grapes, olives, tomatoes, and herbs. Summer irrigation is usually necessary.

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
January48°40°33°
February54°44°34°
March59°48°37°
April65°53°41°
May74°60°47°
June82°67°52°
July92°75°59°
August91°75°58°
September84°68°51°
October70°56°42°
November54°45°36°
December46°39°33°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January3.5
February2.4
March2.5
April2.4
May2.7
June2.2
July0.0
August0.0
September1.0
October2.6
November3.0
December3.4

Sunrise / Sunset

Daylight Pacific Time (PT) Longest: 15h 07m · Shortest: 8h 54m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Pacific Time (PT))
Month Sunrise Sunset Daylight
January7:44 AM4:58 PM9h 14m
February7:16 AM5:36 PM10h 20m
March7:31 AM7:11 PM11h 39m
April6:37 AM7:47 PM13h 10m
May5:55 AM8:20 PM14h 25m
June5:39 AM8:44 PM15h 05m
July5:53 AM8:41 PM14h 49m
August6:24 AM8:07 PM13h 43m
September6:58 AM7:14 PM12h 16m
October7:32 AM6:21 PM10h 49m
November7:11 AM4:43 PM9h 32m
December7:40 AM4:35 PM8h 55m

Nearby Stations

Ruch, ORMay 4 - October 13 Ashland, ORMay 6 - October 8 Lost Creek Dam, OR April 29 - October 17 Grants Pass, OR April 8 - October 28 Howard Prairie Dam, OR June 8 - September 24 Sexton Summit, OR May 16 - October 30

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