Frost Dates for Brisbane, CA

Based on data from San Francisco Intl AP weather station, 5 miles away

Elevation: 108 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. December 29
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 26

This location has a nearly year-round growing season with a brief frost risk period in winter.

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 January 3
First Fall Frost December 21
37.68°N, 122.40°W © OpenStreetMap

Growing Season

362 Days December 29 to December 26

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 10b

Avg. annual minimum: 35 to 40°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
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January58°51°45°
February61°54°46°
March63°56°48°
April66°57°49°
May68°60°52°
June72°63°54°
July73°64°55°
August73°65°56°
September75°65°56°
October72°63°53°
November64°56°49°
December58°51°45°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January5.8
February5.7
March4.7
April3.3
May1.6
June0.0
July0.0
August0.0
September0.0
October1.4
November4.3
December5.6

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
January7:29 AM5:09 PM9h 40m
February7:06 AM5:42 PM10h 36m
March7:28 AM7:10 PM11h 43m
April6:40 AM7:39 PM12h 59m
May6:05 AM8:07 PM14h 02m
June5:52 AM8:27 PM14h 35m
July6:04 AM8:26 PM14h 22m
August6:30 AM7:57 PM13h 27m
September6:57 AM7:11 PM12h 14m
October7:25 AM6:25 PM11h 00m
November6:57 AM4:53 PM9h 56m
December7:23 AM4:48 PM9h 25m

Nearby Stations

Pacifica 4 Sse, CA January 11 - January 10 Oakland Metro Intl AP, CA January 7 - December 23 San Francisco Oceanside, CA December 30 - December 25 San Francisco Dwtn, CA Half Moon Bay, CA February 6 - December 17 Redwood City, CA January 17 - December 12

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