Frost Dates for Saint Augustine South, FL

Based on data from St Augustine Lighthouse weather station, 3 miles away

Elevation: 23 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 1
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. January 5

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 February 15
First Fall Frost December 26

Hard Freeze (28°F)

Last Spring Hard Freeze January 25
First Fall Hard Freeze January 10
29.84°N, 81.31°W © OpenStreetMap

Growing Season

339 Days February 1 to January 5

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.
Cfa Humid Subtropical

Hot, humid summers and mild winters with rain year-round. Long growing seasons support a wide variety of vegetables, fruits, and ornamentals. The most common climate in the eastern US.

Köppen climate map

Temperature

Avg High Avg Temp Avg Low
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January68°58°48°
February70°60°50°
March74°65°55°
April80°70°61°
May85°76°67°
June89°81°72°
July91°82°74°
August90°82°74°
September87°80°73°
October82°74°67°
November75°66°58°
December69°60°51°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January3.8
February4.4
March4.8
April4.8
May6.5
June7.3
July6.7
August7.1
September6.3
October5.7
November3.4
December3.1

Sunrise / Sunset

Daylight Eastern Time (ET) Longest: 13h 55m · Shortest: 10h 05m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Eastern Time (ET))
Month Sunrise Sunset Daylight
January7:26 AM5:43 PM10h 17m
February7:11 AM6:09 PM10h 58m
March7:41 AM7:28 PM11h 47m
April7:04 AM7:47 PM12h 44m
May6:36 AM8:07 PM13h 30m
June6:28 AM8:23 PM13h 55m
July6:38 AM8:23 PM13h 45m
August6:57 AM8:02 PM13h 05m
September7:15 AM7:25 PM12h 10m
October7:33 AM6:48 PM11h 15m
November6:56 AM5:24 PM10h 28m
December7:18 AM5:24 PM10h 05m

Nearby Stations

Hastings 4ne, FL February 14 - December 30 Federal Pt, FL January 31 - January 4 Palm Coast 6ne, FL January 24 - January 11 Jacksonville Beach, FL January 31 - January 10 Jacksonville Nas, FL February 1 - January 5 Jacksonville Craig Muni AP, FL February 9 - December 31

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