Frost Dates for Enterprise, OR

Based on data from Joseph weather station, 6 miles away

Elevation: 3753 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 24
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 1

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 7
First Fall Frost September 24

Hard Freeze (28°F)

Last Spring Hard Freeze May 4
First Fall Hard Freeze October 13
45.43°N, 117.28°W © OpenStreetMap

Growing Season

130 Days May 24 to October 1

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.
Dfb Warm-Summer Continental

Warm summers and cold, snowy winters. A shorter growing season than hot-summer continental. Hardy vegetables, root crops, and cool-season greens do well. Season extension is valuable.

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
January35°27°19°
February39°29°19°
March46°36°26°
April52°41°30°
May61°50°39°
June68°56°44°
July79°64°49°
August80°65°49°
September71°57°43°
October56°45°34°
November43°34°25°
December35°26°18°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January1.7
February1.9
March2.5
April2.5
May3.3
June2.4
July1.9
August2.5
September2.2
October1.9
November2.0
December1.9

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
January7:31 AM4:25 PM8h 54m
February6:59 AM5:08 PM10h 09m
March7:10 AM6:47 PM11h 37m
April6:10 AM7:28 PM13h 17m
May5:25 AM8:06 PM14h 41m
June5:06 AM8:33 PM15h 27m
July5:20 AM8:29 PM15h 08m
August5:56 AM7:51 PM13h 55m
September6:34 AM6:52 PM12h 18m
October7:13 AM5:55 PM10h 41m
November6:56 AM4:12 PM9h 15m
December7:28 AM4:01 PM8h 33m

Nearby Stations

Wallowa, ORJune 7 - September 9 Enterprise 20 Nne, OR June 8 - September 5 Union, ORMay 11 - September 26 Halfway, ORMay 15 - September 24 Elgin, ORMay 24 - September 18 Brownlee Dam, ID April 2 - November 5

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