Oilton, OK 74052 Frost Dates
74052, near Oilton, OK: the frost window
Typically, the last spring freeze lands around 04/05, roughly 220 days out. Fall's first freeze usually shows up around 10/30, roughly 206 days after the last spring frost.
Oilton sits in USDA Zone 7a (0 to 5°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
Oilton's growing season runs out in roughly 9 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/05 isn't a guarantee
04/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/21 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/21 and only about 1 year in 10 sees frost after that.
Oilton against the rest of the dataset
Oilton's growing season runs about 206 days, ranking 16,069 of 40,283 US ZIP codes measured here, longest to shortest. Within OK, it ranks 559 of 764.
Learn more
Two guides worth reading on 74052: local microclimates, on what one yard in Oilton can differ from the 74052 normal, and zone vs. frost date, on why Zone 7a and Oilton's frost date answer different questions.