Frost Dates for Thompson, MB

Based on data from Thompson Zoo weather station, 1 miles away

Elevation: 205 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 9
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 8

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 13
First Fall Frost September 5

Hard Freeze (−2°C)

Last Spring Hard Freeze May 23
First Fall Hard Freeze September 23
55.74°N, 97.86°W © OpenStreetMap

Growing Season

91 Days June 9 to September 8

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 2a

Avg. annual minimum: −46 to −43°C

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Dfc Subarctic

Short, cool summers and long, very cold winters. Growing seasons of 3–4 months require fast-maturing varieties. Root vegetables, potatoes, and cold-hardy greens are the most reliable.

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-18°-23°-29°
February-13°-19°-26°
March-4°-12°-20°
April5°-2°-9°
May13°6°0°
June20°13°7°
July24°17°11°
August22°16°9°
September14°9°4°
October5°1°-3°
November-7°-11°-15°
December-14°-19°-24°

Precipitation

Precipitation table
Average monthly precipitation (millimeters)
MonthPrecipitation
January10
February5
March15
April23
May46
June81
July81
August84
September74
October46
November23
December5

Sunrise / Sunset

Daylight Central Time (CT) Longest: 17h 17m · Shortest: 6h 44m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Central Time (CT))
Month Sunrise Sunset Daylight
January9:00 AM4:21 PM7h 21m
February8:07 AM5:25 PM9h 18m
March7:58 AM7:25 PM11h 27m
April6:35 AM8:28 PM13h 53m
May5:28 AM9:28 PM15h 60m
June4:55 AM10:09 PM17h 14m
July5:16 AM9:59 PM16h 43m
August6:11 AM9:00 PM14h 49m
September7:13 AM7:39 PM12h 26m
October8:14 AM6:19 PM10h 05m
November8:19 AM4:14 PM7h 55m
December9:05 AM3:50 PM6h 45m

Nearby Stations

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