Frost Dates for Morristown Wfo, TN

Elevation: 402 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. March 31
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. November 4

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 April 6
First Fall Frost October 31

Hard Freeze (28°F)

Last Spring Hard Freeze March 21
First Fall Hard Freeze November 14
36.17°N, 83.40°W © OpenStreetMap

Growing Season

218 Days March 31 to November 4

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 7b

Avg. annual minimum: 5 to 10°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 Light Frost (32°F) Hard Frost (28°F)
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January46°38°29°
February50°41°32°
March59°49°40°
April69°58°48°
May76°66°56°
June83°74°64°
July86°77°68°
August85°76°67°
September80°70°61°
October70°60°50°
November58°48°39°
December49°41°33°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January5.0
February5.0
March6.1
April6.4
May5.3
June4.9
July6.0
August4.8
September5.3
October5.4
November5.4
December6.0

Sunrise / Sunset

Daylight Eastern Time (ET) Longest: 14h 28m · Shortest: 9h 32m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Eastern Time (ET))
Month Sunrise Sunset Daylight
January7:49 AM5:37 PM9h 48m
February7:28 AM6:08 PM10h 40m
March7:52 AM7:35 PM11h 43m
April7:06 AM8:02 PM12h 56m
May6:32 AM8:27 PM13h 55m
June6:20 AM8:47 PM14h 27m
July6:32 AM8:46 PM14h 14m
August6:56 AM8:19 PM13h 23m
September7:22 AM7:35 PM12h 13m
October7:47 AM6:50 PM11h 03m
November7:18 AM5:20 PM10h 02m
December7:43 AM5:16 PM9h 33m

Nearby Stations

Morristown Radio Wcrk, TN April 10 - October 28 Jefferson City, TN April 24 - October 17 Newport 1 Nw, TN April 7 - October 29 Sevierville, TN April 6 - October 29 Tazewell, TNApril 23 - October 19 Rogersville 1 Ne, TN April 14 - October 24

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