New Port Richey, FL 34638 Frost Dates
New Port Richey, FL: when does the frost end?
Typically, the last spring freeze lands around 03/01, roughly 185 days out. Fall's first freeze usually shows up around 12/05, roughly 281 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts New Port Richey in Zone 9b (25 to 30°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 14 weeks until New Port Richey's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around New Port Richey's last frost
03/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/27 and only about 1 year in 10 sees frost after that.
New Port Richey against the rest of the dataset
New Port Richey's growing season runs about 281 days, ranking 4,786 of 40,283 US ZIP codes measured here, longest to shortest. Within FL, it ranks 1,404 of 1,609.
Learn more
Before leaning on 34638's figures: the frost range explains how to read the range around New Port Richey's dates instead of trusting one, while local microclimates explains what one yard in New Port Richey can differ from the 34638 normal.