Frost Dates for Mammoth Lakes, CA

Based on data from Mammoth Lakes Rs weather station, 1 miles away

Elevation: 7881 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. June 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. September 17

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 17
First Fall Frost September 10

Hard Freeze (28°F)

Last Spring Hard Freeze May 31
First Fall Hard Freeze October 1
37.65°N, 118.97°W © OpenStreetMap

Growing Season

99 Days June 10 to September 17

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.
Dsb Warm-Summer Continental (Dry Summer)

Warm, dry summers and cold, snowy winters. Common in mountain regions. Moderate growing season with irrigation needs in summer.

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
January41°29°17°
February41°29°18°
March46°34°22°
April51°39°27°
May60°48°35°
June70°56°42°
July78°63°49°
August77°62°47°
September71°56°40°
October61°46°30°
November49°36°23°
December41°29°17°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January7.3
February5.5
March4.6
April3.1
May3.0
June0.6
July1.4
August0.6
September0.0
October1.0
November5.6
December7.0

Sunrise / Sunset

Daylight Pacific Time (PT) Longest: 14h 36m · Shortest: 9h 24m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Pacific Time (PT))
Month Sunrise Sunset Daylight
January7:15 AM4:55 PM9h 40m
February6:52 AM5:28 PM10h 36m
March7:14 AM6:57 PM11h 43m
April6:27 AM7:25 PM12h 59m
May5:51 AM7:53 PM14h 02m
June5:38 AM8:14 PM14h 35m
July5:51 AM8:12 PM14h 22m
August6:16 AM7:44 PM13h 27m
September6:44 AM6:57 PM12h 14m
October7:11 AM6:11 PM11h 00m
November6:43 AM4:39 PM9h 56m
December7:09 AM4:34 PM9h 24m

Nearby Stations

Lee Vining, CAMay 23 - October 9 Tuolumne Meadows Rs, CA Huntington Lake, CA June 1 - October 6 Yosemite Park Hq, CA April 21 - October 27 So Entrance Yosemite Np, CA May 24 - October 10 Bishop AP, CA April 29 - October 15

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