Frost Dates for Wrightwood, CA

Elevation: 1829 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 16
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 13

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 29
First Fall Frost October 5

Hard Freeze (28°F)

Last Spring Hard Freeze April 25
First Fall Hard Freeze October 30
34.36°N, 117.64°W © OpenStreetMap

Growing Season

150 Days May 16 to October 13

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 7a

Avg. annual minimum: 0 to 5°F

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Csb Warm-Summer Mediterranean

Warm, dry summers and mild, wet winters. Similar to hot-summer Mediterranean but cooler. Great for a wide range of vegetables and fruit trees with moderate water needs.

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
January48°37°26°
February48°37°25°
March54°42°29°
April60°46°32°
May69°54°39°
June78°61°44°
July83°68°53°
August82°67°51°
September75°61°46°
October64°51°37°
November55°42°29°
December48°36°25°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January10.2
February7.7
March5.5
April3.5
May0.0
June0.0
July0.0
August0.0
September0.0
October1.4
November6.0
December8.3

Sunrise / Sunset

Daylight Pacific Time (PT) Longest: 14h 18m · Shortest: 9h 42m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Pacific Time (PT))
Month Sunrise Sunset Daylight
January7:02 AM4:58 PM9h 57m
February6:42 AM5:28 PM10h 46m
March7:08 AM6:52 PM11h 45m
April6:25 AM7:17 PM12h 52m
May5:53 AM7:41 PM13h 48m
June5:42 AM7:59 PM14h 17m
July5:54 AM7:59 PM14h 05m
August6:16 AM7:33 PM13h 17m
September6:39 AM6:51 PM12h 12m
October7:02 AM6:09 PM11h 07m
November6:31 AM4:41 PM10h 10m
December6:55 AM4:38 PM9h 43m

Nearby Stations

El Mirage, CA March 21 - November 12 Pearblossom, CA March 13 - December 1 Pomona/Fairplex, CA January 8 - December 28 Ontario Intl AP, CA January 4 - December 30 Hesperia 2e, CA February 28 - December 1 Victorville, CA March 18 - November 11

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