Hayden Lake, ID 83835 Frost Dates
Hayden Lake, ID: when does the frost end?
Typically, the last spring freeze lands around 04/22, roughly 237 days out. Fall's first freeze usually shows up around 10/18, roughly 179 days after the last spring frost.
Hayden Lake sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 7 weeks until Hayden Lake's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Hayden Lake's last frost
04/22 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/04 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.
Hayden Lake against the rest of the dataset
Hayden Lake's growing season runs about 179 days, ranking 25,423 of 40,283 US ZIP codes measured here, longest to shortest. Within ID, it ranks 42 of 320.
Learn more
Before leaning on 83835's figures: local microclimates explains what one yard in Hayden Lake can differ from the 83835 normal, while zone vs. frost date explains why Zone 6b and Hayden Lake's frost date answer different questions.