Victory Seeds®

An informational resource of the Victory Seed Company


Victory Heirloom Seed Company - Preserving the future, one seed at a time!

 "Preserving the future,
one seed at a time." ™

• U.S. Frost Dates

• Canadian Frost Dates

• Hardiness Zone Maps

• Garden Planting Guide

• U.S. Ag Extension Links

• "Why Heirlooms?" FAQ

• "A Case for Heirlooms"

• Glossary of Terms

• Seed Saving Tips

• Vegetable Origins

• Scoville Units

• Other Useful Links

• Measurement Conversion

Average Last and First Frost Dates
for Northwest Territory and the Yukon, Canada

Based on statistics, there is a 10% chance that a frost will occur outside of the dates listed.  Whether or not a specific plant will be damaged depends on the type of plant, the maturity of the plant, the temperature, the duration, as well as many other variables.

City Spring Fall
Whitehorse 6/11 8/25
Yellowknife 5/27 9/15

Source: Environment Canada.  Dates are calculated based on a 30 year rolling average of the last spring and first fall frosts from station data compiled between the years 1961 to 1990.

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Updated on March 09, 2016