Frost Dates for Evanston, WY

Based on data from Evanston 1 E weather station, 1 miles away

Elevation: 6749 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. June 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 12

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 June 20
First Fall Frost September 6

Hard Freeze (28°F)

Last Spring Hard Freeze May 24
First Fall Hard Freeze September 24
41.27°N, 110.96°W © OpenStreetMap

Growing Season

92 Days June 12 to September 12

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.
Dfb Warm-Summer Continental

Warm summers and cold, snowy winters. A shorter growing season than hot-summer continental. Hardy vegetables, root crops, and cool-season greens do well. Season extension is valuable.

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
January33°22°11°
February35°24°13°
March44°33°21°
April53°40°27°
May63°49°35°
June73°57°41°
July81°64°48°
August80°63°47°
September71°55°39°
October58°44°30°
November43°31°19°
December33°22°11°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January2.3
February1.4
March2.1
April3.0
May3.9
June3.2
July3.2
August3.1
September3.7
October3.4
November2.7
December2.4

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
January7:53 AM5:13 PM9h 20m
February7:26 AM5:51 PM10h 24m
March7:43 AM7:24 PM11h 40m
April6:51 AM7:58 PM13h 07m
May6:11 AM8:30 PM14h 19m
June5:55 AM8:53 PM14h 58m
July6:08 AM8:50 PM14h 42m
August6:38 AM8:18 PM13h 39m
September7:11 AM7:26 PM12h 16m
October7:43 AM6:35 PM10h 52m
November7:20 AM4:58 PM9h 38m
December7:49 AM4:51 PM9h 02m

Nearby Stations

Evanston Burns Fld, WY June 3 - September 25 Woodruff, UT Coalville 13 E, UT Randolph, UTJune 14 - September 1 Mtn View, WYJune 14 - September 9 Echo Dam, UTMay 30 - September 18

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