Riviera Beach, FL 33404 Frost Dates
Frost dates for Riviera Beach, FL, ZIP 33404
The last spring frost here typically falls around 01/26, about 151 days from today. The first fall frost typically arrives around 01/16, about 365 frost-free days later.
Zone 10b (35 to 40°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Riviera Beach, not a forecast for this year.
What to do before the first frost
Zone 10b around Riviera Beach has about 20 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
01/26 is the middle of 30 years of NOAA records, not a promise. Plant by 01/01 and you're betting against frost in roughly 9 years out of 10. 02/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Riviera Beach compares
At roughly 365 frost-free days, Riviera Beach places 984 of 40,283 ZIP codes in this dataset. Within FL, it ranks 403 of 1,609.
Learn more
zone vs. frost date explains why Zone 10b and Riviera Beach's frost date answer different questions, and the frost range explains how to read the range around Riviera Beach's dates instead of trusting one.