Frost Dates for Hortonville, WI

Based on data from New London weather station, 4 miles away

Elevation: 794 ft

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. May 4
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 6

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 May 10
First Fall Frost October 1

Hard Freeze (28°F)

Last Spring Hard Freeze April 24
First Fall Hard Freeze October 18
44.33°N, 88.64°W © OpenStreetMap

Growing Season

155 Days May 4 to October 6

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 5a

Avg. annual minimum: −20 to −15°F

Learn more

Köppen Climate

The 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.

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
January25°17°8°
February29°20°11°
March41°31°22°
April54°44°33°
May68°56°45°
June77°66°55°
July81°70°59°
August79°68°58°
September72°60°49°
October58°48°38°
November43°35°26°
December30°23°15°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January3.1
February3.4
March4.7
April5.3
May5.9
June7.2
July6.5
August6.3
September5.1
October4.1
November3.4
December3.1

Sunrise / Sunset

Daylight Central Time (CT) Longest: 15h 21m · Shortest: 8h 39m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Central Time (CT))
Month Sunrise Sunset Daylight
January7:34 AM4:35 PM9h 01m
February7:03 AM5:16 PM10h 13m
March7:16 AM6:53 PM11h 38m
April6:18 AM7:32 PM13h 15m
May5:33 AM8:09 PM14h 35m
June5:15 AM8:35 PM15h 19m
July5:30 AM8:31 PM15h 01m
August6:04 AM7:55 PM13h 51m
September6:41 AM6:58 PM12h 17m
October7:18 AM6:02 PM10h 44m
November6:59 AM4:21 PM9h 21m
December7:31 AM4:11 PM8h 40m

Nearby Stations

Plan Your Garden with Planter

Now that you know your frost dates, use Planter to plan your veggie garden! Planter is an easy drag-and-drop garden planner with personalized planting schedules.

Try Planter For Free

Available everywhere: iOS, Android, web, and more!

Planter app garden planner preview