Frost Dates for Clinton, OK

Elevation: 479 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. April 13
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. October 28

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 19
First Fall Frost October 22

Hard Freeze (28°F)

Last Spring Hard Freeze April 1
First Fall Hard Freeze November 5
35.50°N, 98.98°W © OpenStreetMap

Growing Season

198 Days April 13 to October 28

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 7a

Avg. annual minimum: 0 to 5°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
January51°38°25°
February55°42°29°
March65°51°38°
April74°60°45°
May82°69°56°
June91°78°66°
July95°83°70°
August94°82°69°
September86°74°62°
October75°62°48°
November61°49°36°
December51°39°27°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January2.4
February3.1
March4.7
April5.6
May8.1
June8.7
July7.8
August7.9
September8.4
October6.6
November5.6
December5.3

Sunrise / Sunset

Daylight Longest: 14h 24m · Shortest: 9h 36m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January7:04 AM4:56 PM9h 51m
February6:39 AM5:21 PM10h 42m
March6:08 AM5:52 PM11h 44m
April5:33 AM6:27 PM12h 54m
May5:04 AM6:56 PM13h 52m
June4:48 AM7:12 PM14h 23m
July4:55 AM7:05 PM14h 11m
August5:20 AM6:40 PM13h 21m
September5:54 AM6:06 PM12h 13m
October6:28 AM5:32 PM11h 05m
November6:57 AM5:03 PM10h 05m
December7:12 AM4:48 PM9h 37m

Nearby Stations

Bessie 4wnw Mesonet, OK April 3 - November 1 Weatherford 4wsw Mesnt, OK April 6 - November 3 Weatherford, OK April 3 - November 3 Butler 5sw Mesonet, OK April 9 - October 28 Clinton Sherman AP, OK April 5 - November 4 Hammon 3 Ssw, OK April 16 - October 23

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