Blanchard, OK 73010 Frost Dates
When can you plant in Blanchard, OK?
Around 03/31 is the usual last spring frost, about 215 days away. The first fall frost typically arrives around 11/03, about 217 frost-free days later.
Blanchard 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 10 weeks of growing season left in Blanchard before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Blanchard's last frost
03/31 is the middle of 30 years of NOAA records, not a promise. Plant by 03/12 and you're betting against frost in roughly 9 years out of 10. 04/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Blanchard compares
Blanchard's growing season runs about 217 days, ranking 13,447 of 40,283 US ZIP codes measured here, longest to shortest. Within OK, it ranks 252 of 764.
Learn more
zone vs. frost date covers why Zone 7b and Blanchard's frost date answer different questions. the frost range covers how to read the range around Blanchard's dates instead of trusting one.