Frost Dates for Harrisville, UT

Based on data from Ogden Pioneer Ph weather station, 3 miles away

Elevation: 4291 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. 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 23

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 28
First Fall Frost October 17

Hard Freeze (28°F)

Last Spring Hard Freeze April 5
First Fall Hard Freeze November 3
41.28°N, 111.99°W © OpenStreetMap

Growing Season

185 Days April 21 to October 23

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 7b

Avg. annual minimum: 5 to 10°F

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Dsa Hot-Summer Continental (Dry Summer)

Hot, dry summers and cold, wet winters. A continental version of Mediterranean climate. Summer irrigation is essential; cold-hardy crops grow well in the wet season.

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
January38°30°22°
February44°34°24°
March55°44°33°
April62°50°39°
May73°60°48°
June83°70°56°
July92°78°64°
August90°77°63°
September80°67°53°
October66°54°41°
November51°41°31°
December39°31°23°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January5.5
February5.2
March5.7
April5.2
May5.9
June6.0
July2.0
August3.8
September4.0
October5.0
November4.9
December4.5

Sunrise / Sunset

Daylight Mountain Time (MT) Longest: 14h 59m · Shortest: 9h 01m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Mountain Time (MT))
Month Sunrise Sunset Daylight
January7:57 AM5:17 PM9h 20m
February7:30 AM5:55 PM10h 24m
March7:47 AM7:28 PM11h 40m
April6:55 AM8:01 PM13h 07m
May6:15 AM8:33 PM14h 19m
June5:59 AM8:57 PM14h 58m
July6:12 AM8:54 PM14h 42m
August6:42 AM8:22 PM13h 39m
September7:15 AM7:30 PM12h 16m
October7:47 AM6:39 PM10h 52m
November7:24 AM5:02 PM9h 38m
December7:53 AM4:55 PM9h 02m

Nearby Stations

Ogden Ne Bench, UT April 19 - October 22 Ogden Sugar Factory, UT April 22 - October 18 Ogden Hinkley AP, UT April 22 - October 22 Pineview Dam, UT May 22 - September 26 Eden-Liberty, UT May 25 - September 26 Weber Basin Pump Plt 3, UT April 29 - October 20

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