Westminster, VT 03608 Frost Dates
When can you plant in Westminster, VT?
Around 05/08 is the usual last spring frost, about 253 days away. The first fall frost typically arrives around 10/03, about 149 frost-free days later.
The USDA Plant Hardiness Zone Map puts Westminster in Zone 5b (-15 to -10°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 5 weeks of growing season left in Westminster before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Westminster's last frost
05/08 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. 05/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Westminster compares
At roughly 149 frost-free days, Westminster places 35,569 of 40,283 ZIP codes in this dataset. Within VT, it ranks 80 of 330.
Learn more
zone vs. frost date covers why Zone 5b and Westminster's frost date answer different questions. the frost range covers how to read the range around Westminster's dates instead of trusting one.