Cascade Locks, OR 97014 Frost Dates
97014, near Cascade Locks, OR: the frost window
Typically, the last spring freeze lands around 03/24, roughly 208 days out. Fall's first freeze usually shows up around 11/20, roughly 242 days after the last spring frost.
Cascade Locks sits in USDA Zone 8a (10 to 15°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
Cascade Locks's growing season runs out in roughly 12 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
03/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/28 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/16 and only about 1 year in 10 sees frost after that.
Cascade Locks against the rest of the dataset
At roughly 242 frost-free days, Cascade Locks places 8,382 of 40,283 ZIP codes in this dataset. Within OR, it ranks 116 of 463.
Learn more
Two guides worth reading on 97014: the frost range, on how to read the range around Cascade Locks's dates instead of trusting one, and local microclimates, on what one yard in Cascade Locks can differ from the 97014 normal.