Frost Dates for Livermore Muni AP, CA

Elevation: 120 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. February 27
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 1

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 10
First Fall Frost November 23

Hard Freeze (28°F)

Last Spring Hard Freeze January 19
First Fall Hard Freeze December 15
37.69°N, 121.81°W © OpenStreetMap

Growing Season

278 Days February 27 to December 1

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.
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)
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January57°48°38°
February61°50°40°
March65°54°42°
April69°57°45°
May75°62°49°
June83°68°54°
July88°72°57°
August88°72°57°
September85°70°55°
October78°64°49°
November66°54°42°
December58°48°38°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January3.7
February3.7
March4.0
April3.2
May1.4
June0.0
July0.0
August0.0
September0.0
October1.4
November2.9
December4.1

Sunrise / Sunset

Daylight Longest: 14h 37m · Shortest: 9h 23m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January7:10 AM4:50 PM9h 40m
February6:42 AM5:18 PM10h 36m
March6:09 AM5:51 PM11h 43m
April5:31 AM6:29 PM12h 59m
May4:59 AM7:01 PM14h 02m
June4:42 AM7:18 PM14h 36m
July4:49 AM7:11 PM14h 22m
August5:16 AM6:44 PM13h 27m
September5:53 AM6:07 PM12h 14m
October6:30 AM5:30 PM10h 60m
November7:02 AM4:58 PM9h 56m
December7:18 AM4:42 PM9h 24m

Nearby Stations

Livermore, CA February 15 - December 2 Mt Diablo Junction, CA March 8 - December 22 Tracy Pumping Plt, CA January 19 - December 10 Fremont, CA January 7 - December 22 Hayward Air Terminal, CA January 2 - December 25 Newark, CAJanuary 1 - December 27

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