Willow, OK 73673 Frost Dates
When can you plant in Willow, OK?
Around 04/08 is the usual last spring frost, about 223 days away. The first fall frost typically arrives around 11/02, about 207 frost-free days later.
Willow sits in USDA Zone 7b (5 to 10°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.
What to do before the first frost
About 9 weeks of growing season left in Willow before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/08 isn't a guarantee
04/08 is the middle of 30 years of NOAA records, not a promise. Plant by 03/21 and you're betting against frost in roughly 9 years out of 10. 04/24 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Willow compares
Willow's growing season runs about 207 days, ranking 15,892 of 40,283 US ZIP codes measured here, longest to shortest. Within OK, it ranks 538 of 764.
Learn more
the frost range covers how to read the range around Willow's dates instead of trusting one. local microclimates covers what one yard in Willow can differ from the 73673 normal.