USDA Hardiness Zone 10b
Frost Dates for 33433 — Boca Raton, Florida
NOAA 1991–2020 normals from Pompano Beach Airpark, FL (21 ft), 7 miles southeast.
Updated
Frost is not a yearly event in Boca Raton: a night at or below 32°F came in 1% of the winters of 1991–2020 at Pompano Beach Airpark, FL, and a 36°F night, cold enough for frost on exposed leaves, in 10%. There is no reliable "last frost date" here; most years have none.
- Winters with a freeze
- 1%
- Winters with 36°F
- 10%
- Coldest month low
- 60°F
- Hardiness zone
- 10b
32°F or below, 1991–2020
frost possible on leaves
average, January
35 to 40°F (1.7 to 4.4°C) coldest night
- First snow
- Rare
- Last snow
- Rare
- Winters with snow
- 0%
- Snow per year
- 0"
median, 1991–2020
median, 1991–2020
0 of 17 observed
NOAA normal
Frost risk by date in Boca Raton
At Pompano Beach Airpark, FL, 7 miles southeast of Boca Raton, 1% of the winters of 1991–2020 had at least one night at or below 32°F, and none reached 28°F. Even a 36°F night came in only 10% of winters. December is the month most likely to bring one: a 1% chance in a given year. 56 of the 158 other Florida stations behind this site's ZIP pages freeze in fewer than half of winters too.
Freeze probabilities 1991–2020 at Pompano Beach Airpark, FL, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.
Frost risk on any date in 33433 →Compare Boca Raton with another place →
Weather by month in Boca Raton
August is the warmest month at Pompano Beach Airpark, FL, averaging 91°F by day and 78°F at night; January is the coldest at 76°F and 60°F. Every month stays under a 10% chance of a 32°F night; December is the likeliest at 1%.
Warmth for growing adds up to 9,951 growing degree days a year (base 50°F), more than at 94% of the 158 Florida stations. 46% of them (4,533) have built up by the end of June, and August adds the most, 1,060. Precipitation totals 55.9 inches a year, most in June (8.1") and least in January (1.9"); May to September bring 59% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 76 | 60 | 1.9 | 0% | 0 | 570 |
| Feb | 78 | 62 | 2.0 | 0% | 0 | 567 |
| Mar | 80 | 65 | 2.9 | 0% | 0 | 699 |
| Apr | 84 | 70 | 3.4 | 0% | 0 | 797 |
| May | 86 | 73 | 5.5 | 0% | 0 | 922 |
| Jun | 89 | 76 | 8.1 | 0% | 0 | 978 |
| Jul | 91 | 78 | 5.3 | 0% | 0 | 1054 |
| Aug | 91 | 78 | 6.3 | 0% | 0 | 1060 |
| Sep | 89 | 77 | 7.6 | 0% | 0 | 987 |
| Oct | 86 | 74 | 6.7 | 0% | 0 | 928 |
| Nov | 81 | 68 | 3.7 | 0% | 0 | 737 |
| Dec | 78 | 64 | 2.5 | 1% | 0 | 652 |
Monthly normals 1991–2020 at Pompano Beach Airpark, FL (21 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.
Compared with the next station
The nearest other station, Coral Springs, FL, 9 miles southwest of Boca Raton, has a 32°F night in 3% of winters against 1% here, and a coolest-month low 2°F colder (58°F).
When it snows in Boca Raton, Florida
Measurable snow is rare here: only 0 of 17 winters from 1991 to 2020 recorded 0.1 inch or more at Loxahatchee Nwr, FL, 11.1 miles away, so there is no typical first-snow date to plan around.
Where these figures come from
ZIP 33433 is 7 miles from Pompano Beach Airpark, FL, which stands at 21 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 9 other ZIP codes share the station; its figures are presented in full for 33064 (Pompano Beach). The 2023 USDA Plant Hardiness Zone Map lists ZIP 33433 in zone 10b, the band where the coldest night of the year averaged 35 to 40°F (1.7 to 4.4°C) over 1991–2020; a zone describes winter lows, not frost dates.
Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.
Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.