Settled science?: Current growing season in Fairbanks is 123 days, or 105 days: It's 38 days longer than a century ago, but only five days longer than two decades ago?

Fairbanks Daily News-Miner - Higher temperatures are causing Alaskas growing season to become longer

These changes have stretched the growing season from 85 to 123 days in the past century.
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And while warming might produce more potatoes and pumpkins in cold-climate regions, it could eradicate tree populations.
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“The thing about agriculture is we can have really high temperatures or long seasons, but if you have a hard frost in the middle of August that wipes out everything, you can have another month that’s really good but you can’t take advantage of it because the crops are dead,” said Meriam Karlsson, professor of horticulture at UAF who has observed 20 years of growing seasons in Fairbanks.

Karlsson said the growing season has increased in the past couple of decades from 100 to about 105 days. Though summers typically contain more frost-free days, it’s still risky to plant before June.
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In the past 100 years, temperatures climbed the most in winter but rose in every season except fall.