Delta Junction, AK 99776 Frost Dates

Delta Junction, AK: when does the frost end?

The NOAA station nearest to 99776 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 1b (-55 to -50°F average annual minimum).

Delta Junction against the rest of the dataset

Delta Junction's growing season runs about 64 days, ranking 40,155 of 40,283 US ZIP codes measured here, longest to shortest. Within AK, it ranks 257 of 269.

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Before leaning on 99776's figures: local microclimates explains what one yard in Delta Junction can differ from the 99776 normal, while the methodology explains exactly which NOAA and USDA figures feed 99776's numbers.