Frost Dates for Mccammon, ID

Elevation: 1454 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 23
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 24

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 31
First Fall Frost September 18

Hard Freeze (28°F)

Last Spring Hard Freeze May 4
First Fall Hard Freeze October 4
42.65°N, 112.19°W © OpenStreetMap

Growing Season

124 Days May 23 to September 24

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.
Dfa Hot-Summer Continental

Hot summers and cold winters with year-round precipitation. Moderate growing season supports warm-season crops like tomatoes, peppers, and corn. Winter protection extends the harvest.

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
January32°23°15°
February37°28°18°
March49°38°26°
April58°45°32°
May68°54°39°
June77°62°46°
July87°70°52°
August86°68°51°
September76°59°42°
October61°47°32°
November46°35°24°
December34°25°17°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January2.8
February2.2
March2.2
April2.2
May3.6
June3.4
July2.6
August3.0
September3.2
October2.7
November2.4
December2.8

Sunrise / Sunset

Daylight Longest: 15h 08m · Shortest: 8h 52m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January7:24 AM4:36 PM9h 12m
February6:50 AM5:10 PM10h 19m
March6:10 AM5:50 PM11h 39m
April5:25 AM6:35 PM13h 10m
May4:47 AM7:13 PM14h 26m
June4:26 AM7:34 PM15h 07m
July4:35 AM7:25 PM14h 50m
August5:08 AM6:52 PM13h 44m
September5:52 AM6:08 PM12h 16m
October6:36 AM5:24 PM10h 48m
November7:15 AM4:45 PM9h 31m
December7:34 AM4:26 PM8h 53m

Nearby Stations

Lava Hot Springs, ID May 21 - September 21 Downey, IDMay 31 - September 18 Pocatello 2 Ne, ID May 16 - October 2 Pocatello City, ID May 2 - October 11 Grace, IDMay 29 - September 17 Pocatello Rgnl AP, ID May 23 - September 18

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