Frost Dates for Chattanooga, TN

Based on data from Lookout Mtn-Point Park weather station, 3 miles away

Elevation: 676 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. March 31
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. November 6
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 7
First Fall Frost November 1

Hard Freeze (28°F)

Last Spring Hard Freeze March 21
First Fall Hard Freeze November 17
35.05°N, -85.31°W © OpenStreetMap

Growing Season

220 Days March 31 to November 6

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 7b

Avg. annual minimum: 5 to 10°F (−15 to −12°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.

Köppen climate map

Temperature

20° 40° 60° 80°
37°
High: 46°F
Avg: 37°F
Low: 29°F
Jan
40°
High: 49°F
Avg: 40°F
Low: 31°F
Feb
48°
High: 58°F
Avg: 48°F
Low: 39°F
Mar
58°
High: 68°F
Avg: 58°F
Low: 47°F
Apr
66°
High: 74°F
Avg: 66°F
Low: 57°F
May
73°
High: 81°F
Avg: 73°F
Low: 65°F
Jun
76°
High: 84°F
Avg: 76°F
Low: 67°F
Jul
75°
High: 82°F
Avg: 75°F
Low: 67°F
Aug
70°
High: 78°F
Avg: 70°F
Low: 61°F
Sep
59°
High: 67°F
Avg: 59°F
Low: 51°F
Oct
48°
High: 57°F
Avg: 48°F
Low: 40°F
Nov
40°
High: 49°F
Avg: 40°F
Low: 32°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 3" 6" 8.9"
7.1"
7.11"
Jan
7.4"
7.44"
Feb
8.9"
8.93"
Mar
6.8"
6.83"
Apr
5.7"
5.73"
May
6.4"
6.44"
Jun
6.0"
6.02"
Jul
6.4"
6.36"
Aug
7.2"
7.21"
Sep
7.4"
7.41"
Oct
7.6"
7.61"
Nov
8.7"
8.66"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec10h10.5h11.5h13h14h14.5h14h13.5h12h11h10h9.5h
Jan: 7:54 AM – 5:47 PM · 9h 53m
Feb: 7:34 AM – 6:18 PM · 10h 44m
Mar: 7:59 AM – 7:43 PM · 11h 44m
Apr: 7:15 AM – 8:08 PM · 12h 53m
May: 6:42 AM – 8:33 PM · 13h 50m
Jun: 6:31 AM – 8:52 PM · 14h 21m
Jul: 6:43 AM – 8:51 PM · 14h 08m
Aug: 7:06 AM – 8:25 PM · 13h 19m
Sep: 7:30 AM – 7:42 PM · 12h 12m
Oct: 7:54 AM – 6:59 PM · 11h 06m
Nov: 7:23 AM – 5:30 PM · 10h 07m
Dec: 7:48 AM – 5:27 PM · 9h 39m
Daylight Eastern Time (ET) Longest: 14h 22m · Shortest: 9h 39m

Nearby Stations

Chickamauga Pk Larc, GA April 6 - October 30 Chattanooga Lovell AP, TN March 24 - November 9 Chickamauga 2 Sw, GA March 25 - November 9 Soddy Daisy-Mowbray Mtn, TN April 7 - October 29 Whitwell-Sequatchie Vly, TN March 26 - November 8 Bridgeport 5 Nw, AL April 7 - October 31

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