Frost Dates for Dublin, CA

Based on data from Livermore weather station, 7 miles away

Elevation: 367 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. February 15
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 2

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 February 28
First Fall Frost November 25

Hard Freeze (28°F)

Last Spring Hard Freeze January 10
First Fall Hard Freeze December 18
37.70°N, 121.94°W © OpenStreetMap

Growing Season

291 Days February 15 to December 2

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 9b

Avg. annual minimum: 25 to 30°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°39°
February61°51°41°
March66°55°43°
April71°58°46°
May77°63°50°
June84°69°54°
July89°73°57°
August89°73°57°
September86°70°55°
October77°64°50°
November65°54°43°
December57°48°39°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January4.9
February4.7
March4.4
April3.2
May1.8
June0.0
July0.0
August0.0
September0.0
October1.1
November3.8
December5.0

Sunrise / Sunset

Daylight Pacific Time (PT) Longest: 14h 37m · Shortest: 9h 23m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Pacific Time (PT))
Month Sunrise Sunset Daylight
January7:27 AM5:07 PM9h 40m
February7:04 AM5:40 PM10h 36m
March7:26 AM7:08 PM11h 43m
April6:38 AM7:37 PM12h 59m
May6:03 AM8:04 PM14h 02m
June5:50 AM8:25 PM14h 36m
July6:02 AM8:24 PM14h 22m
August6:28 AM7:55 PM13h 27m
September6:55 AM7:09 PM12h 14m
October7:22 AM6:22 PM10h 60m
November6:55 AM4:50 PM9h 56m
December7:21 AM4:45 PM9h 24m

Nearby Stations

Livermore Muni AP, CA February 27 - December 1 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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