USDA Hardiness Zone 11b
Frost Dates for 33036 — Islamorada, Florida
NOAA 1991–2020 normals from Islamorada, FL (6 ft), under a mile southeast.
Updated
No night at or below 32°F was recorded at Islamorada, FL in 1991–2020, not even 36°F, so Islamorada has no frost dates to plan around; the coolest month, January, averages a low of 65°F.
- Winters with a freeze
- 0%
- Winters with 36°F
- 0%
- Coldest month low
- 65°F
- Hardiness zone
- 11b
32°F or below, 1991–2020
frost possible on leaves
average, January
45 to 50°F (7.2 to 10.0°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 19 observed
NOAA normal
Frost risk by date in Islamorada
Islamorada, FL, in Islamorada, did not record a night at or below 32°F in 1991–2020. 13 of the 158 other Florida stations behind this site's ZIP pages recorded no 32°F night either.
Freeze probabilities 1991–2020 at Islamorada, 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 33036 →Compare Islamorada with another place →
Weather by month in Islamorada
July is the warmest month at Islamorada, FL, averaging 89°F by day and 80°F at night; January is the coldest at 75°F and 65°F. Not one month recorded a 32°F night; the lowest monthly average low is 65°F.
Warmth for growing adds up to 10,199 growing degree days a year (base 50°F), more than at 98% of the 158 Florida stations. 46% of them (4,654) have built up by the end of June, and July adds the most, 1,057. Precipitation totals 38.8 inches a year, most in September (8.1") and least in January (1.0"); May to September bring 65% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 75 | 65 | 1.0 | 0% | 0 | 616 |
| Feb | 77 | 67 | 1.3 | 0% | 0 | 608 |
| Mar | 78 | 69 | 1.3 | 0% | 0 | 729 |
| Apr | 81 | 72 | 2.8 | 0% | 0 | 801 |
| May | 84 | 76 | 2.4 | 0% | 0 | 927 |
| Jun | 87 | 78 | 5.1 | 0% | 0 | 974 |
| Jul | 89 | 80 | 3.9 | 0% | 0 | 1057 |
| Aug | 89 | 79 | 5.6 | 0% | 0 | 1057 |
| Sep | 88 | 79 | 8.1 | 0% | 0 | 1004 |
| Oct | 85 | 76 | 4.5 | 0% | 0 | 950 |
| Nov | 80 | 71 | 1.6 | 0% | 0 | 773 |
| Dec | 78 | 68 | 1.2 | 0% | 0 | 705 |
Monthly normals 1991–2020 at Islamorada, FL (6 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, Tavernier, FL, 9 miles northeast of Islamorada, has no 32°F night on record either, and a coolest-month low 1°F colder (64°F).
When it snows in Islamorada, Florida
Measurable snow is rare here: only 0 of 19 winters from 1991 to 2020 recorded 0.1 inch or more at Tavernier, FL, 9.5 miles away, so there is no typical first-snow date to plan around.
Where these figures come from
ZIP 33036 is under a mile from Islamorada, FL, which stands at 6 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 33036 in zone 11b, the band where the coldest night of the year averaged 45 to 50°F (7.2 to 10.0°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.