Frost Dates for Lethbridge, NL

Elevation: 15 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. June 15
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 2

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 August 19

Hard Freeze (−2°C)

Last Spring Hard Freeze May 21
First Fall Hard Freeze October 13
48.35°N, 53.90°W © OpenStreetMap

Growing Season

79 Days June 15 to September 2

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: −29 to −26°C

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 (0°C) Hard Frost (−2°C)
Temperature table
Average monthly temperatures (°C)
Month Avg High Avg Temp Avg Low
January-1°-6°-10°
February-1°-6°-10°
March2°-2°-7°
April7°3°-2°
May13°7°2°
June18°12°6°
July23°17°11°
August23°17°12°
September18°13°8°
October12°8°3°
November6°3°-1°
December2°-2°-5°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January107
February102
March99
April97
May97
June89
July97
August91
September122
October130
November114
December119

Sunrise / Sunset

Daylight Newfoundland Time (NT) Longest: 15h 54m · Shortest: 8h 07m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Newfoundland Time (NT))
Month Sunrise Sunset Daylight
January7:59 AM4:31 PM8h 32m
February7:22 AM5:19 PM9h 57m
March7:28 AM7:03 PM11h 35m
April6:23 AM7:49 PM13h 26m
May5:32 AM8:32 PM14h 60m
June5:10 AM9:02 PM15h 52m
July5:26 AM8:56 PM15h 31m
August6:06 AM8:14 PM14h 08m
September6:50 AM7:10 PM12h 20m
October7:35 AM6:07 PM10h 32m
November7:23 AM4:19 PM8h 56m
December7:57 AM4:05 PM8h 08m

Nearby Stations

Terra Nova Nat Park Cs, NL May 27 - October 11 Goobies, NLJune 12 - September 2 Swift Current, NL June 15 - September 21 Indian Bay B.B., NL June 15 - September 6 Gander Int'L A, NL May 30 - October 21 Butlerville, NL June 13 - September 21

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