Frost Dates for Fredericktown, MO

Elevation: 232 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 21
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 16

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 29
First Fall Frost October 10

Hard Freeze (28°F)

Last Spring Hard Freeze April 10
First Fall Hard Freeze October 26
37.57°N, 90.31°W © OpenStreetMap

Growing Season

178 Days April 21 to October 16

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 6b

Avg. annual minimum: −5 to 0°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
January42°31°21°
February47°35°24°
March57°44°32°
April68°55°42°
May76°64°52°
June84°72°61°
July88°76°65°
August87°75°62°
September80°67°54°
October69°55°42°
November56°44°32°
December45°35°24°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January5.5
February5.0
March6.6
April8.2
May8.4
June7.6
July8.3
August9.5
September7.8
October7.6
November7.9
December6.1

Sunrise / Sunset

Daylight Central Time (CT) Longest: 14h 36m · Shortest: 9h 24m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Central Time (CT))
Month Sunrise Sunset Daylight
January7:20 AM5:01 PM9h 41m
February6:58 AM5:34 PM10h 36m
March7:20 AM7:02 PM11h 43m
April6:32 AM7:31 PM12h 59m
May5:57 AM7:58 PM14h 01m
June5:44 AM8:19 PM14h 35m
July5:56 AM8:17 PM14h 21m
August6:22 AM7:49 PM13h 27m
September6:49 AM7:03 PM12h 14m
October7:16 AM6:16 PM11h 00m
November6:48 AM4:44 PM9h 56m
December7:15 AM4:40 PM9h 25m

Nearby Stations

Farmington, MO April 13 - October 21 Perryville Wtp, MO April 19 - October 20 Marble Hill, MO April 12 - October 23 Kaskaskia Rvr Navigation Lock, IL April 8 - October 30 Potosi 4 Sw, MO April 11 - October 28 Jackson, MOApril 7 - October 29

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