Dill City, OK 73641 Frost Dates
Frost dates for Dill City, OK, ZIP 73641
Around 04/05 is the usual last spring frost, about 220 days away. The first fall frost typically arrives around 11/04, about 210 frost-free days later.
Dill City 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
Zone 7b around Dill City has about 10 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
04/05 is the middle of 30 years of NOAA records, not a promise. Plant by 03/19 and you're betting against frost in roughly 9 years out of 10. 04/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Dill City compares
At roughly 210 frost-free days, Dill City places 15,097 of 40,283 ZIP codes in this dataset. Within OK, it ranks 484 of 764.
Learn more
zone vs. frost date explains why Zone 7b and Dill City's frost date answer different questions, and the frost range explains how to read the range around Dill City's dates instead of trusting one.