Frost Dates for Council, ID

Elevation: 897 m

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 10
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 2

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 May 16
First Fall Frost September 28

Hard Freeze (28°F)

Last Spring Hard Freeze April 22
First Fall Hard Freeze October 16
44.74°N, 116.43°W © OpenStreetMap

Growing Season

145 Days May 10 to October 2

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.
Dsa Hot-Summer Continental (Dry Summer)

Hot, dry summers and cold, wet winters. A continental version of Mediterranean climate. Summer irrigation is essential; cold-hardy crops grow well in the wet season.

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
January33°26°18°
February40°31°22°
March52°41°29°
April61°48°35°
May72°57°42°
June80°64°49°
July92°75°57°
August91°73°55°
September80°63°45°
October64°50°35°
November47°37°26°
December36°28°19°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January7.1
February5.3
March5.1
April4.1
May4.1
June3.5
July0.3
August0.0
September2.7
October3.2
November4.6
December6.7

Sunrise / Sunset

Daylight Longest: 15h 24m · Shortest: 8h 36m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January7:31 AM4:29 PM8h 58m
February6:54 AM5:06 PM10h 12m
March6:11 AM5:49 PM11h 38m
April5:22 AM6:38 PM13h 16m
May4:41 AM7:19 PM14h 38m
June4:19 AM7:41 PM15h 22m
July4:28 AM7:32 PM15h 04m
August5:04 AM6:56 PM13h 53m
September5:51 AM6:09 PM12h 18m
October6:39 AM5:21 PM10h 43m
November7:21 AM4:39 PM9h 19m
December7:41 AM4:19 PM8h 37m

Nearby Stations

Cambridge, ID May 15 - September 27 New Meadows Rs, ID Mccall, IDJune 22 - September 2 Mccall AP, ID June 10 - September 10 Brownlee Dam, ID April 2 - November 5 Cascade 1 Nw, ID May 30 - September 19

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