St. Petersburg, PA 16054 Frost Dates
When can you plant in St. Petersburg, PA?
The last spring frost here typically falls around 05/10, about 255 days from today. The first fall frost typically arrives around 10/12, about 155 frost-free days later.
The USDA Plant Hardiness Zone Map puts St. Petersburg in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 6 weeks of growing season left in St. Petersburg before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around St. Petersburg's last frost
05/10 is the middle of 30 years of NOAA records, not a promise. Plant by 04/24 and you're betting against frost in roughly 9 years out of 10. 05/28 is the safer bet, historically only a 1-in-10 chance of frost that late.
How St. Petersburg compares
St. Petersburg's growing season runs about 155 days, ranking 34,119 of 40,283 US ZIP codes measured here, longest to shortest. Within PA, it ranks 1,831 of 2,088.
Learn more
the frost range covers how to read the range around St. Petersburg's dates instead of trusting one. local microclimates covers what one yard in St. Petersburg can differ from the 16054 normal.