Frost Dates for Corydon, IN

Based on data from Brandenburg weather station, 18 miles away

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 19
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 24
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 25
First Fall Frost October 18

Hard Freeze (28°F)

Last Spring Hard Freeze April 6
First Fall Hard Freeze November 2
38.21°N, -86.12°W © OpenStreetMap

Growing Season

188 Days April 19 to October 24

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.

Köppen climate map

Temperature

20° 40° 60° 80°
33°
High: 43°F
Avg: 33°F
Low: 23°F
Jan
36°
High: 47°F
Avg: 36°F
Low: 25°F
Feb
45°
High: 57°F
Avg: 45°F
Low: 33°F
Mar
56°
High: 69°F
Avg: 56°F
Low: 42°F
Apr
65°
High: 76°F
Avg: 65°F
Low: 53°F
May
72°
High: 83°F
Avg: 72°F
Low: 61°F
Jun
76°
High: 86°F
Avg: 76°F
Low: 65°F
Jul
75°
High: 86°F
Avg: 75°F
Low: 63°F
Aug
68°
High: 80°F
Avg: 68°F
Low: 56°F
Sep
57°
High: 69°F
Avg: 57°F
Low: 44°F
Oct
45°
High: 56°F
Avg: 45°F
Low: 34°F
Nov
37°
High: 46°F
Avg: 37°F
Low: 27°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 3" 6" 9" 10.0"
6.7"
6.69"
Jan
8.1"
8.05"
Feb
9.2"
9.16"
Mar
10.0"
10.04"
Apr
9.7"
9.70"
May
9.3"
9.32"
Jun
9.7"
9.66"
Jul
8.5"
8.52"
Aug
8.4"
8.41"
Sep
8.9"
8.92"
Oct
7.5"
7.50"
Nov
8.9"
8.90"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9.5h10.5h11.5h13h14h14.5h14.5h13.5h12h11h10h9.5h
Jan: 7:11 AM – 4:49 PM · 9h 39m
Feb: 6:42 AM – 5:18 PM · 10h 35m
Mar: 6:09 AM – 5:51 PM · 11h 42m
Apr: 5:30 AM – 6:30 PM · 12h 59m
May: 4:58 AM – 7:02 PM · 14h 03m
Jun: 4:41 AM – 7:19 PM · 14h 37m
Jul: 4:48 AM – 7:12 PM · 14h 23m
Aug: 5:16 AM – 6:44 PM · 13h 28m
Sep: 5:53 AM – 6:07 PM · 12h 14m
Oct: 6:30 AM – 5:30 PM · 10h 59m
Nov: 7:03 AM – 4:57 PM · 9h 54m
Dec: 7:19 AM – 4:41 PM · 9h 23m
Daylight Longest: 14h 38m · Shortest: 9h 22m

Nearby Stations

Corners, KYApril 25 - October 16 Elizabethtown Wp Cs, KY April 16 - October 25 Bernheim Forest, KY April 18 - October 25 Louisville Intl AP, KY March 31 - November 7 Mcdaniels, KY April 11 - October 26 Louisville Wfo, KY April 6 - November 1

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