Frost Dates for Smyrna, TN

Based on data from Smyrna 6s weather station, 5 miles away

Elevation: 545 ft

Frost Dates

Last Spring Frost (50%) iA 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. April 13
First Fall Frost (50%) iA 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. October 21
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30% Probability iOnly 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 21
First Fall Frost October 16

Hard Freeze (28°F)

Last Spring Hard Freeze April 1
First Fall Hard Freeze October 30
35.98°N, -86.52°W © OpenStreetMap

Growing Season

191 Days April 13 to October 21

USDA Hardiness Zone iHardiness 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 7a

Avg. annual minimum: 0 to 5°F (−18 to −15°C)

Learn more

Köppen Climate iThe 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.

Temperature

20° 40° 60° 80°
37°
High: 48°F
Avg: 37°F
Low: 26°F
Jan
41°
High: 52°F
Avg: 41°F
Low: 29°F
Feb
48°
High: 61°F
Avg: 48°F
Low: 35°F
Mar
58°
High: 71°F
Avg: 58°F
Low: 44°F
Apr
66°
High: 79°F
Avg: 66°F
Low: 53°F
May
74°
High: 86°F
Avg: 74°F
Low: 61°F
Jun
78°
High: 90°F
Avg: 78°F
Low: 66°F
Jul
77°
High: 90°F
Avg: 77°F
Low: 64°F
Aug
71°
High: 85°F
Avg: 71°F
Low: 56°F
Sep
59°
High: 73°F
Avg: 59°F
Low: 44°F
Oct
47°
High: 61°F
Avg: 47°F
Low: 33°F
Nov
41°
High: 52°F
Avg: 41°F
Low: 30°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 6" 7.1"
5.1"
5.07"
Jan
5.7"
5.68"
Feb
7.1"
7.11"
Mar
6.6"
6.60"
Apr
6.2"
6.15"
May
6.3"
6.31"
Jun
6.6"
6.59"
Jul
6.1"
6.11"
Aug
5.4"
5.40"
Sep
4.7"
4.74"
Oct
5.2"
5.21"
Nov
5.9"
5.93"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec10h10.5h11.5h13h14h14.5h14h13.5h12h11h10h9.5h
Jan: 7:01 AM – 4:50 PM · 9h 49m
Feb: 6:40 AM – 5:21 PM · 10h 41m
Mar: 7:04 AM – 6:48 PM · 11h 44m
Apr: 6:19 AM – 7:14 PM · 12h 55m
May: 5:45 AM – 7:40 PM · 13h 54m
Jun: 5:34 AM – 7:59 PM · 14h 25m
Jul: 5:45 AM – 7:58 PM · 14h 13m
Aug: 6:09 AM – 7:31 PM · 13h 22m
Sep: 6:34 AM – 6:47 PM · 12h 13m
Oct: 6:60 AM – 6:03 PM · 11h 04m
Nov: 6:30 AM – 4:33 PM · 10h 03m
Dec: 6:55 AM – 4:29 PM · 9h 34m
Daylight Central Time (CT) Longest: 14h 26m · Shortest: 9h 34m

Nearby Stations

Plan Your Garden with Planter

Now that you know your frost dates, use Planter to plan your veggie garden! Planter is an easy drag-and-drop garden planner with personalized planting schedules.

Try Planter For Free

Available everywhere: iOS, Android, web, and more!

Planter app garden planner preview