Rising Sun, MD 21917 Frost Dates
When can you plant in Rising Sun, MD?
The last spring frost here typically falls around 04/03, about 218 days from today. The first fall frost typically arrives around 11/06, about 217 frost-free days later.
Rising Sun 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.
What to do before the first frost
About 10 weeks of growing season left in Rising Sun before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/03 is the middle of 30 years of NOAA records, not a promise. Plant by 03/22 and you're betting against frost in roughly 9 years out of 10. 04/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Rising Sun compares
About 217 days separate Rising Sun's last and first frost, putting it 13,501 of 40,283 ZIP codes nationally. Within MD, it ranks 300 of 583.
Learn more
local microclimates covers what one yard in Rising Sun can differ from the 21917 normal. zone vs. frost date covers why Zone 7a and Rising Sun's frost date answer different questions.