Frost Window: 30 years of weather and a laptop-sized Gemma tell you what to do outside this week

Automated excerpt

Most apps answer with a single "average first frost" date. It works out, for every one of those years, the last spring frost and the first fall frost. It turns that into four plain sentences: the chance of frost by next week, the typical and the early first frost, whether it is bulb-planting season, and the date seedlings are safe next spring in 9 of 10 years.

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