Frost Dates for Clinton, IN

Based on data from Rockville weather station, 11 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 30
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 12
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 May 6
First Fall Frost October 7

Hard Freeze (28°F)

Last Spring Hard Freeze April 18
First Fall Hard Freeze October 22
39.66°N, -87.40°W © OpenStreetMap

Growing Season

165 Days April 30 to October 12

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 6a

Avg. annual minimum: −10 to −5°F (−23 to −21°C)

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

Dfa Hot-Summer Continental

Hot summers and cold winters with year-round precipitation. Moderate growing season supports warm-season crops like tomatoes, peppers, and corn. Winter protection extends the harvest.

Köppen climate map

Temperature

10° 30° 50° 70° 90°
27°
High: 36°F
Avg: 27°F
Low: 17°F
Jan
31°
High: 41°F
Avg: 31°F
Low: 21°F
Feb
41°
High: 52°F
Avg: 41°F
Low: 29°F
Mar
53°
High: 66°F
Avg: 53°F
Low: 40°F
Apr
63°
High: 76°F
Avg: 63°F
Low: 50°F
May
71°
High: 84°F
Avg: 71°F
Low: 58°F
Jun
74°
High: 86°F
Avg: 74°F
Low: 62°F
Jul
72°
High: 85°F
Avg: 72°F
Low: 60°F
Aug
66°
High: 79°F
Avg: 66°F
Low: 53°F
Sep
54°
High: 67°F
Avg: 54°F
Low: 42°F
Oct
42°
High: 52°F
Avg: 42°F
Low: 31°F
Nov
31°
High: 40°F
Avg: 31°F
Low: 22°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" 9.9"
7.0"
7.03"
Jan
7.0"
6.97"
Feb
8.1"
8.14"
Mar
8.8"
8.78"
Apr
8.5"
8.52"
May
9.3"
9.29"
Jun
9.9"
9.87"
Jul
8.6"
8.64"
Aug
7.6"
7.62"
Sep
8.0"
7.96"
Oct
7.4"
7.39"
Nov
6.8"
6.80"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9.5h10.5h11.5h13h14h15h14.5h13.5h12h11h10h9h
Jan: 7:16 AM – 4:44 PM · 9h 29m
Feb: 6:45 AM – 5:15 PM · 10h 29m
Mar: 6:09 AM – 5:51 PM · 11h 41m
Apr: 5:28 AM – 6:32 PM · 13h 03m
May: 4:54 AM – 7:06 PM · 14h 12m
Jun: 4:36 AM – 7:24 PM · 14h 48m
Jul: 4:43 AM – 7:17 PM · 14h 33m
Aug: 5:13 AM – 6:47 PM · 13h 34m
Sep: 5:53 AM – 6:07 PM · 12h 15m
Oct: 6:32 AM – 5:28 PM · 10h 55m
Nov: 7:07 AM – 4:53 PM · 9h 46m
Dec: 7:24 AM – 4:36 PM · 9h 12m
Daylight Longest: 14h 49m · Shortest: 9h 11m

Nearby Stations

Greencastle 1 W, IN April 27 - October 15 Terre Haute Hulman Rgnl AP, IN April 16 - October 18 Terre Haute Caa AP, IN April 14 - October 24 Terre Haute Indiana State, IN April 15 - October 19 Paris Stp, IL April 21 - October 20 Perrysville 4 Wnw, IN April 23 - October 14

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