USDA Hardiness Zone 10b
Frost Dates for 34145 — Marco Island, Florida
NOAA 1991–2020 normals from Marco Is, FL (10 ft), under a mile north.
Updated
Frost is not a yearly event in Marco Island: a night at or below 32°F came in 4% of the winters of 1991–2020 at Marco Is, FL, and a 36°F night, cold enough for frost on exposed leaves, in 28%. There is no reliable "last frost date" here; most years have none.
- Winters with a freeze
- 4%
- Winters with 36°F
- 28%
- Coldest month low
- 55°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 20 observed
NOAA normal
Frost risk by date in Marco Island
At Marco Is, FL, in Marco Island, 4% 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 28% of winters. January is the month most likely to bring one: a 4% 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 Marco Is, 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 34145 →Compare Marco Island with another place →
Weather by month in Marco Island
August is the warmest month at Marco Is, FL, averaging 92°F by day and 76°F at night; January is the coldest at 74°F and 55°F. Every month stays under a 10% chance of a 32°F night; January is the likeliest at 4%.
Warmth for growing adds up to 9,261 growing degree days a year (base 50°F), more than at 80% of the 158 Florida stations. 44% of them (4,094) have built up by the end of June, and August adds the most, 1,049. Precipitation totals 53.4 inches a year, most in September (9.9") and least in December (1.7"); May to September bring 70% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 74 | 55 | 2.5 | 4% | <1 | 453 |
| Feb | 76 | 57 | 1.9 | 0% | <1 | 467 |
| Mar | 79 | 60 | 2.1 | 0% | 0 | 602 |
| Apr | 83 | 65 | 2.5 | 0% | 0 | 722 |
| May | 88 | 70 | 3.4 | 0% | 0 | 887 |
| Jun | 90 | 74 | 8.4 | 0% | 0 | 965 |
| Jul | 91 | 76 | 6.6 | 0% | 0 | 1037 |
| Aug | 92 | 76 | 9.2 | 0% | 0 | 1049 |
| Sep | 90 | 75 | 9.9 | 0% | 0 | 978 |
| Oct | 87 | 71 | 3.2 | 0% | 0 | 893 |
| Nov | 81 | 63 | 2.0 | 0% | 0 | 659 |
| Dec | 77 | 59 | 1.7 | 0% | <1 | 551 |
Monthly normals 1991–2020 at Marco Is, FL (10 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, Naples Municipal Airport, FL, 15 miles north of Marco Island, has a 32°F night in 6% of winters against 4% here, and a coolest-month low 1°F warmer (56°F).
When it snows in Marco Island, Florida
Measurable snow is rare here: only 0 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Naples, FL, 15.7 miles away, so there is no typical first-snow date to plan around.
Where these figures come from
ZIP 34145 is under a mile from Marco Is, FL, which stands at 10 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station; its figures are presented in full for 34114 (Naples). The 2023 USDA Plant Hardiness Zone Map lists ZIP 34145 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.