Frost Dates for Fairmont, CA

Elevation: 933 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. April 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. November 29

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 25
First Fall Frost November 19

Hard Freeze (28°F)

Last Spring Hard Freeze February 25
First Fall Hard Freeze December 10
34.70°N, 118.43°W © OpenStreetMap

Growing Season

237 Days April 6 to November 29

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.
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)
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January56°47°38°
February58°49°39°
March63°53°43°
April68°57°46°
May76°65°53°
June86°74°62°
July92°80°68°
August93°81°68°
September88°75°62°
October77°65°53°
November65°54°44°
December55°46°37°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January6.3
February6.5
March4.9
April2.3
May0.0
June0.0
July0.0
August0.0
September0.0
October0.0
November2.5
December5.0

Sunrise / Sunset

Daylight Longest: 14h 20m · Shortest: 9h 40m
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 55m
February6:38 AM5:22 PM10h 45m
March6:08 AM5:52 PM11h 44m
April5:34 AM6:26 PM12h 53m
May5:05 AM6:55 PM13h 49m
June4:51 AM7:09 PM14h 19m
July4:57 AM7:03 PM14h 07m
August5:21 AM6:39 PM13h 18m
September5:54 AM6:06 PM12h 12m
October6:27 AM5:33 PM11h 06m
November6:56 AM5:04 PM10h 09m
December7:10 AM4:50 PM9h 41m

Nearby Stations

Lancaster Wm J Fox Fld, CA April 3 - November 1 Sandberg, CA April 15 - November 26 Palmdale AP, CA March 18 - November 15 Palmdale, CA March 10 - November 19 Newhall 5nw, CA January 8 - January 1 Tehachapi 4 Se, CA April 28 - October 26

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