Frost Dates for Baker City, OR

Based on data from Baker City Muni AP weather station, 5 miles away

Elevation: 3448 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. May 25
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. September 15

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 June 4
First Fall Frost September 9

Hard Freeze (28°F)

Last Spring Hard Freeze May 8
First Fall Hard Freeze September 27
44.77°N, 117.83°W © OpenStreetMap

Growing Season

113 Days May 25 to September 15

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 6a

Avg. annual minimum: −10 to −5°F

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Dsb Warm-Summer Continental (Dry Summer)

Warm, dry summers and cold, snowy winters. Common in mountain regions. Moderate growing season with irrigation needs in summer.

Köppen climate map

Temperature

Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January38°29°20°
February44°34°23°
March54°41°28°
April61°46°31°
May70°54°39°
June77°61°44°
July88°69°49°
August88°68°47°
September79°59°39°
October64°47°30°
November48°36°25°
December37°29°20°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January1.2
February1.3
March1.3
April1.6
May2.1
June2.1
July1.9
August1.9
September1.7
October1.5
November1.2
December1.2

Sunrise / Sunset

Daylight Pacific Time (PT) Longest: 15h 24m · Shortest: 8h 36m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Pacific Time (PT))
Month Sunrise Sunset Daylight
January7:32 AM4:29 PM8h 58m
February7:00 AM5:11 PM10h 11m
March7:12 AM6:50 PM11h 38m
April6:14 AM7:29 PM13h 16m
May5:28 AM8:07 PM14h 38m
June5:10 AM8:33 PM15h 23m
July5:24 AM8:29 PM15h 05m
August5:59 AM7:52 PM13h 53m
September6:37 AM6:55 PM12h 18m
October7:15 AM5:58 PM10h 43m
November6:57 AM4:16 PM9h 18m
December7:29 AM4:05 PM8h 37m

Nearby Stations

Union, ORMay 11 - September 26 Richland, ORMay 10 - October 1 Halfway, ORMay 15 - September 24 La Grande, ORMay 6 - October 1 Austin 3 S, OR Huntington, OR April 23 - 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