Deer Lodge, MT 59731 Frost Dates
Frost dates for Deer Lodge, MT, ZIP 59731
The NOAA station nearest to 59731 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 4b (-25 to -20°F average annual minimum).
How Deer Lodge compares
Deer Lodge's growing season runs about 65 days, ranking 40,151 of 40,283 US ZIP codes measured here, longest to shortest. Within MT, it ranks 375 of 392.
Learn more
local microclimates explains what one yard in Deer Lodge can differ from the 59731 normal, and the methodology explains exactly which NOAA and USDA figures feed 59731's numbers.