Tower, MN 55782 Frost Dates
55782, near Tower, MN: the frost window
The NOAA station nearest to 55782 does not report a usable frost-date normal for either event, so no last-frost or first-frost figure is shown here. The USDA hardiness zone below is still real: Zone 3a (-40 to -35°F average annual minimum).
Tower against the rest of the dataset
Tower's growing season runs about 89 days, ranking 39,928 of 40,283 US ZIP codes measured here, longest to shortest. Within MN, it ranks 932 of 943.
Learn more
Two guides worth reading on 55782: the methodology, on exactly which NOAA and USDA figures feed 55782's numbers, and zone vs. frost date, on why Zone 3a and Tower's frost date answer different questions.