Ponderay, ID 83865 Frost Dates
Ponderay, ID: when does the frost end?
The last spring frost here typically falls around 05/08, about 253 days from today. Fall's first freeze usually shows up around 09/28, roughly 141 days after the last spring frost.
Ponderay 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 4 weeks until Ponderay's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Ponderay's last frost
05/08 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/25 and only about 1 year in 10 sees frost after that.
Ponderay against the rest of the dataset
About 141 days separate Ponderay's last and first frost, putting it 36,915 of 40,283 ZIP codes nationally. Within ID, it ranks 146 of 320.
Learn more
Before leaning on 83865's figures: local microclimates explains what one yard in Ponderay can differ from the 83865 normal, while zone vs. frost date explains why Zone 6b and Ponderay's frost date answer different questions.