Frost Dates for Mendon, UT

Based on data from Logan 5 Sw Exp Farm weather station, 5 miles away

Elevation: 4495 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 12
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. September 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 May 18
First Fall Frost September 22

Hard Freeze (28°F)

Last Spring Hard Freeze April 28
First Fall Hard Freeze October 9
41.71°N, 111.98°W © OpenStreetMap

Growing Season

139 Days May 12 to September 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 5b

Avg. annual minimum: −15 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
January32°22°13°
February37°26°16°
March48°37°27°
April57°45°34°
May67°54°41°
June78°63°48°
July88°71°55°
August86°70°53°
September76°60°43°
October62°47°32°
November46°35°24°
December33°24°14°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January2.9
February3.0
March4.0
April3.6
May3.9
June3.3
July1.9
August2.1
September2.6
October3.3
November3.3
December3.0

Sunrise / Sunset

Daylight Mountain Time (MT) Longest: 15h 02m · Shortest: 8h 58m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Mountain Time (MT))
Month Sunrise Sunset Daylight
January7:58 AM5:16 PM9h 18m
February7:31 AM5:54 PM10h 23m
March7:47 AM7:27 PM11h 40m
April6:54 AM8:02 PM13h 08m
May6:13 AM8:34 PM14h 21m
June5:58 AM8:58 PM15h 00m
July6:11 AM8:55 PM14h 44m
August6:41 AM8:22 PM13h 41m
September7:14 AM7:30 PM12h 16m
October7:47 AM6:38 PM10h 51m
November7:25 AM5:01 PM9h 36m
December7:54 AM4:53 PM8h 59m

Nearby Stations

Logan Radio Kvnu, UT May 8 - October 2 Logan Utah St Univ, UT April 30 - October 16 Logan Cache AP, UT May 8 - October 2 Brigham City Waste Plt, UT May 5 - October 5 Cutler Dam, UTMay 3 - October 12 Tremonton, UT April 24 - October 17

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