Zone 4b Almanac

What growers in zone 4b actually recorded

Every row below comes from real plantings and harvest logs kept by growers in zone 4b. Nothing is published until enough growers have recorded it, so the gaps are real gaps, not guesses.

Last frost: May 15

First frost: September 25

These two frost dates are the conventional zone-wide averages for zone 4b, not a reading from a station near you, so treat them as plus or minus about two weeks until you enter your own. Crop rows below are medians of member records, each published only after enough growers logged it. See the full method, sources, and confidence bands.

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See how your season compares

Log a planting and its harvests and Harvestead will tell you whether you came in ahead of or behind zone 4b, crop by crop.

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