Madill, OK 73446 Frost Dates
Madill, OK: when does the frost end?
Around 03/31 is the usual last spring frost, about 215 days away. Fall's first freeze usually shows up around 11/05, roughly 221 days after the last spring frost.
Zone 8a (10 to 15°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Madill, not a forecast for this year.
Stretching the season past the first frost
With roughly 10 weeks until Madill's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
03/31 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/18 and only about 1 year in 10 sees frost after that.
Madill against the rest of the dataset
At roughly 221 frost-free days, Madill places 12,510 of 40,283 ZIP codes in this dataset. Within OK, it ranks 128 of 764.
Learn more
Before leaning on 73446's figures: the frost range explains how to read the range around Madill's dates instead of trusting one, while local microclimates explains what one yard in Madill can differ from the 73446 normal.