Frost Dates for Mitchell Caverns, CA

Elevation: 1326 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. March 6
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. December 8

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 March 21
First Fall Frost November 28

Hard Freeze (28°F)

Last Spring Hard Freeze February 1
First Fall Hard Freeze December 25
34.94°N, 115.55°W © OpenStreetMap

Growing Season

277 Days March 6 to December 8

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 9a

Avg. annual minimum: 20 to 25°F

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
BWk Cold Desert

Dry with hot summers and cold winters. Rainfall is minimal year-round. Short growing seasons and large temperature swings require careful timing. Cold-hardy, drought-tolerant plants are best suited.

Köppen climate map

Temperature

Avg High Avg Temp Avg Low Light Frost (32°F)
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January54°47°40°
February55°48°41°
March62°53°45°
April68°59°50°
May77°68°58°
June87°78°69°
July92°83°73°
August91°82°72°
September85°76°68°
October74°65°57°
November62°55°47°
December53°46°40°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January5.0
February5.0
March3.7
April0.0
May0.0
June0.0
July0.0
August1.4
September1.6
October0.0
November0.0
December2.4

Sunrise / Sunset

Daylight Longest: 14h 21m · Shortest: 9h 39m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January7:03 AM4:57 PM9h 54m
February6:38 AM5:22 PM10h 44m
March6:08 AM5:52 PM11h 44m
April5:33 AM6:27 PM12h 53m
May5:05 AM6:55 PM13h 50m
June4:50 AM7:10 PM14h 20m
July4:56 AM7:04 PM14h 08m
August5:21 AM6:39 PM13h 19m
September5:54 AM6:06 PM12h 12m
October6:27 AM5:33 PM11h 06m
November6:56 AM5:04 PM10h 08m
December7:10 AM4:50 PM9h 40m

Nearby Stations

Baker, CA February 14 - November 27 Searchlight, NV March 7 - November 29 Needles AP, CA January 6 - January 2 Laughlin, NV January 5 - December 24 Bullhead City, AZ January 4 - December 23 Iron Mtn, CA January 3 - December 31

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