Frost Dates for Harlem, FL

Based on data from Clewiston #2 weather station, 6 miles away

Elevation: 20 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. January 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. January 13

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 5
First Fall Frost January 3

Hard Freeze (28°F)

Last Spring Hard Freeze January 18
First Fall Hard Freeze January 11
26.74°N, 80.95°W © OpenStreetMap

Growing Season

352 Days January 27 to January 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 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.
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
January74°62°51°
February77°66°54°
March80°68°57°
April85°73°62°
May88°78°67°
June90°81°72°
July92°83°74°
August92°83°74°
September90°82°73°
October87°77°68°
November81°70°59°
December76°65°54°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January8.0
February7.9
March7.9
April10.2
May11.8
June10.2
July9.5
August9.5
September8.6
October7.3
November4.5
December5.6

Sunrise / Sunset

Daylight Eastern Time (ET) Longest: 13h 41m · Shortest: 10h 19m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Eastern Time (ET))
Month Sunrise Sunset Daylight
January7:19 AM5:48 PM10h 30m
February7:06 AM6:11 PM11h 05m
March7:40 AM7:28 PM11h 49m
April7:05 AM7:44 PM12h 38m
May6:41 AM7:60 PM13h 19m
June6:34 AM8:15 PM13h 40m
July6:44 AM8:16 PM13h 32m
August6:60 AM7:57 PM12h 57m
September7:14 AM7:23 PM12h 09m
October7:29 AM6:50 PM11h 21m
November6:50 AM5:29 PM10h 39m
December7:10 AM5:30 PM10h 20m

Nearby Stations

Devils Garden, FL January 25 - January 13 Moore Haven Lock 1, FL January 23 - January 11 Ortona Lock 2, FL January 27 - January 11 Brighton Rsvn, FL January 31 - January 12 La Belle, FL February 2 - January 8 Belle Glade, FL January 27 - January 16

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