USDA Hardiness Zone 13a
Frost Dates for 00646 — Dorado, Puerto Rico
NOAA 1991–2020 normals from Dorado 2 WNW, PR (5 ft), 3 miles northwest.
Updated
No night at or below 32°F was recorded at Dorado 2 WNW, PR in 1991–2020, not even 36°F, so Dorado has no frost dates to plan around; the coolest month, January, averages a low of 67°F.
- Winters with a freeze
- 0%
- Winters with 36°F
- 0%
- Coldest month low
- 67°F
- Hardiness zone
- 13a
32°F or below, 1991–2020
frost possible on leaves
average, January
60 to 65°F (15.6 to 18.3°C) coldest night
Frost risk by date in Dorado
Dorado 2 WNW, PR, 3 miles northwest of Dorado, did not record a night at or below 32°F in 1991–2020. All 25 other Puerto Rico stations behind this site's ZIP pages recorded no 32°F night either.
Freeze probabilities 1991–2020 at Dorado 2 WNW, PR, 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 00646 →Compare Dorado with another place →
Weather by month in Dorado
August is the warmest month at Dorado 2 WNW, PR, averaging 88°F by day and 74°F at night; January is the coldest at 79°F and 67°F. Not one month recorded a 32°F night; the lowest monthly average low is 67°F.
Warmth for growing adds up to 10,016 growing degree days a year (base 50°F), fewer than at 64% of the 25 Puerto Rico stations. 47% of them (4,752) have built up by the end of June, and August adds the most, 955. Precipitation totals 66.0 inches a year, most in November (8.2") and least in March (2.4"); May to September bring 46% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 79 | 67 | 5.6 | 0% | 0 | 722 |
| Feb | 80 | 67 | 3.6 | 0% | 0 | 665 |
| Mar | 82 | 68 | 2.4 | 0% | 0 | 770 |
| Apr | 84 | 70 | 3.9 | 0% | 0 | 809 |
| May | 86 | 72 | 6.3 | 0% | 0 | 902 |
| Jun | 86 | 73 | 4.4 | 0% | 0 | 884 |
| Jul | 86 | 73 | 7.1 | 0% | 0 | 918 |
| Aug | 88 | 74 | 6.3 | 0% | 0 | 955 |
| Sep | 87 | 73 | 6.5 | 0% | 0 | 894 |
| Oct | 86 | 72 | 6.4 | 0% | 0 | 899 |
| Nov | 84 | 71 | 8.2 | 0% | 0 | 822 |
| Dec | 82 | 69 | 5.3 | 0% | 0 | 777 |
Monthly normals 1991–2020 at Dorado 2 WNW, PR (5 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, Toa Baja Levittown, PR, 7 miles east of Dorado, has no 32°F night on record either, and a coolest-month low 2°F warmer (69°F).
Where these figures come from
ZIP 00646 is 3 miles from Dorado 2 WNW, PR, which stands at 5 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 00646 in zone 13a, the band where the coldest night of the year averaged 60 to 65°F (15.6 to 18.3°C) over 1991–2020; a zone describes winter lows, not frost dates.
Frost dates across Puerto Rico →
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.