Frost Dates for Kuna, ID

Based on data from Boise Air Terminal weather station, 10 miles away

Elevation: 2694 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 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 21

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 30
First Fall Frost October 14

Hard Freeze (28°F)

Last Spring Hard Freeze April 2
First Fall Hard Freeze October 31
43.49°N, 116.42°W © OpenStreetMap

Growing Season

180 Days April 24 to October 21

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 7b

Avg. annual minimum: 5 to 10°F

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
BSk Cold Semi-Arid (Steppe)

Cool to cold with low rainfall and wide temperature swings. Common in the western Great Plains and central Asia. Short growing seasons benefit from season extension techniques.

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
January39°32°26°
February46°38°29°
March56°45°35°
April62°51°40°
May72°60°48°
June81°68°54°
July93°77°62°
August91°76°61°
September80°66°53°
October65°53°42°
November49°40°32°
December39°32°25°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January2.4
February2.0
March2.7
April2.5
May2.5
June2.1
July0.1
August0.0
September1.3
October2.0
November2.1
December2.2

Sunrise / Sunset

Daylight Mountain Time (MT) Longest: 15h 15m · Shortest: 8h 45m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Mountain Time (MT))
Month Sunrise Sunset Daylight
January8:21 AM5:27 PM9h 06m
February7:51 AM6:08 PM10h 16m
March8:05 AM7:44 PM11h 39m
April7:09 AM8:22 PM13h 13m
May6:26 AM8:57 PM14h 31m
June6:08 AM9:22 PM15h 14m
July6:22 AM9:19 PM14h 56m
August6:55 AM8:43 PM13h 48m
September7:31 AM7:48 PM12h 17m
October8:07 AM6:53 PM10h 46m
November7:47 AM5:13 PM9h 26m
December8:18 AM5:04 PM8h 46m

Nearby Stations

Boise Lucky Peak Dam, ID April 30 - October 22 Boise 7 N, IDMay 17 - October 12 Arrowrock Dam, ID April 28 - October 14 Nampa Sugar Factory, ID April 29 - October 13 Emmett 2 E, ID April 30 - October 17 Swan Falls Ph, ID April 12 - October 26

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