USDA Hardiness Zone 10a
Frost Dates for 34120 — Naples, Florida
NOAA 1991–2020 normals from Naples, FL (40 ft), 9 miles southwest.
Updated
Frost is not a yearly event in Naples: a night at or below 32°F came in 33% of the winters of 1991–2020 at Naples, FL, and a 36°F night, cold enough for frost on exposed leaves, in 75%. There is no reliable "last frost date" here; most years have none.
- Winters with a freeze
- 33%
- Winters with 36°F
- 75%
- Coldest month low
- 52°F
- Hardiness zone
- 10a
32°F or below, 1991–2020
frost possible on leaves
average, January
30 to 35°F (-1.1 to 1.7°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 Naples
At Naples, FL, 9 miles southwest of Naples, 33% of the winters of 1991–2020 had at least one night at or below 32°F, 7% reached 28°F. Nights of 36°F, enough for frost on exposed leaves, are more common (75% of winters) and, when they come, fall between about January 10 and January 31. January is the month most likely to bring one: a 23% 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.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F75% of yrs | Jan 3 | Jan 10 | Jan 16 | Jan 23 | Jan 31 | Feb 3 | Feb 9 | Feb 21 | Mar 2 |
| 32°F33% of yrs | too rare for a date | ||||||||
| 28°F7% of yrs | too rare for a date | ||||||||
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F75% of yrs | Dec 19 | Dec 29 | Jan 3 | Jan 6 | Jan 10 | Jan 15 | Jan 21 | Jan 30 | Feb 8 |
| 32°F33% of yrs | too rare for a date | ||||||||
| 28°F7% of yrs | too rare for a date | ||||||||
Freeze probabilities 1991–2020 at Naples, 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 34120 →Compare Naples with another place →
Weather by month in Naples
August is the warmest month at Naples, FL, averaging 91°F by day and 73°F at night; January is the coldest at 74°F and 52°F. From February to December the chance of a 32°F night stays under 10% each month.
Warmth for growing adds up to 8,606 growing degree days a year (base 50°F), more than at 63% of the 158 Florida stations. 44% of them (3,785) have built up by the end of June, and August adds the most, 987. Precipitation totals 61.4 inches a year, most in August (10.8") and least in March (1.9"); May to September bring 72% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 74 | 52 | 2.7 | 23% | <1 | 408 |
| Feb | 77 | 54 | 2.1 | 8% | <1 | 428 |
| Mar | 79 | 57 | 1.9 | 1% | 0 | 555 |
| Apr | 83 | 61 | 2.5 | 0% | 0 | 665 |
| May | 87 | 66 | 4.0 | 0% | 0 | 825 |
| Jun | 89 | 71 | 9.6 | 0% | 0 | 905 |
| Jul | 91 | 72 | 9.8 | 0% | 0 | 973 |
| Aug | 91 | 73 | 10.8 | 0% | 0 | 987 |
| Sep | 90 | 72 | 10.0 | 0% | 0 | 924 |
| Oct | 86 | 68 | 3.9 | 0% | 0 | 829 |
| Nov | 81 | 60 | 1.9 | 0% | 0 | 615 |
| Dec | 76 | 55 | 2.2 | 5% | 0 | 492 |
Monthly normals 1991–2020 at Naples, FL (40 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, 14 miles southwest of Naples, has a 32°F night in 6% of winters against 33% here, and a coolest-month low 4°F warmer (56°F).
When it snows in Naples, Florida
Measurable snow is rare here: only 0 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Naples, FL, 9.4 miles away, so there is no typical first-snow date to plan around.
Where these figures come from
ZIP 34120 is 9 miles from Naples, FL, which stands at 40 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 3 other ZIP codes share the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 34120 in zone 10a, the band where the coldest night of the year averaged 30 to 35°F (-1.1 to 1.7°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.