New Port Richey, FL 34637 Frost Dates
When can you plant in New Port Richey, FL?
Typically, the last spring freeze lands around 01/31, roughly 156 days out. The first fall frost typically arrives around 01/08, about 336 frost-free days later.
New Port Richey sits in USDA Zone 9b (25 to 30°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 19 weeks of growing season left in New Port Richey before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 01/31 isn't a guarantee
01/31 is the middle of 30 years of NOAA records, not a promise. Plant by 01/03 and you're betting against frost in roughly 9 years out of 10. 02/28 is the safer bet, historically only a 1-in-10 chance of frost that late.
How New Port Richey compares
At roughly 336 frost-free days, New Port Richey places 2,723 of 40,283 ZIP codes in this dataset. Within FL, it ranks 1,092 of 1,609.
Learn more
zone vs. frost date covers why Zone 9b and New Port Richey's frost date answer different questions. the frost range covers how to read the range around New Port Richey's dates instead of trusting one.