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Place guide

Planting zones in Guayama, PR

Every ZIP code in this metro is USDA zone 13a. That is unusual — most metros span several zones — and it means the one number people usually look up is the same wherever you are here.

USDA zone 13a The same in all 3 ZIP codes
ZIP codes 3 3 have a NOAA station within range
Weather stations 1 NOAA 1991–2020 normals, across 127 sq mi

Your ZIP code

Get the exact answer for your address

Everything above describes Guayama, PR as a whole. Hardiness zones and freeze dates are published per ZIP code, so yours is exact — enter it and this page will tell you your zone, which NOAA station it comes from and how far away that station is.

Works for all 40,502 US ZIP codes. Freeze dates need a NOAA station within 100 km; where there is none, the page says so rather than estimating one.

What you can sow in Guayama, PR now

32 of 32 crops that every one of the 1 NOAA station serving this metro area agrees still has time to mature — with a week in hand, so this holds until the page is next rebuilt.

No station serving this metro area records a freeze at any probability, so frost is not what limits the list — heat and day length are.

No station serving this metro area records a freeze at any probability, so there is no season boundary to draw — the growing season here is the whole year.

Your freeze dates

No freeze range is shown for Guayama, PR, because at least one station here records no freeze at any probability, so there is no date to average. The tools below still answer for individual ZIP codes here, and will say what applies.

Your growing season

NOAA publishes a growing-season length for each station, and across the 1 station serving Guayama, PR it runs 365 days . That figure is published, not computed from the two freeze dates — subtracting one from the other gives the wrong answer wherever a season crosses New Year. Mean summer high (June–August) runs 90 °F , below the 90 °F point where cool-season crops reliably bolt. Summer rain over the same months runs 17.1" across that station, against the rough inch a week — about 13 inches over the same 92 days — that a vegetable garden is usually reckoned to want. At the middle station that is covered, so watering in Guayama, PR is for the gaps between storms rather than the whole season. The inches are NOAA's published normals; the inch a week is a rule of thumb, and it takes no account of a 90 °F summer afternoon drying the soil faster than a cool one.

What lives through a zone 13a winter

Winter hardiness runs on the zone alone, so this one is exact for the whole of Guayama, PR rather than a range. Of 74 perennial fruits, nuts, berries, vegetables and herbs, 14 come through a zone 13a winter — and 60 of the failures are not about cold at all, but about winters too mild to break dormancy or summers too hot.

Among them: Mint, Globe Artichoke, Rosemary, Taro, Bay Laurel, Banana, Lemon & Lime, Orange & Grapefruit. See the full list with reasons.

With no freeze recorded at any probability, there are no dates to be uncertain about — the question this chart answers does not arise here.

The 1 station behind these numbers

This metro area cites too few stations to place on a sketch; they are listed with their identifiers below.

Every figure above comes from these, and each is named so you can check it. Which station serves a given ZIP code, and how far away it is, varies across the metro — the table below gives it per ZIP code rather than this page averaging it.

Station NOAA ID Last spring freeze First fall freeze Season
Guayama 2E, PR RQC00664193 no freeze recorded no freeze recorded 365 days

These are medians, not averages — NOAA publishes freeze dates as a probability distribution, and half of years freeze later than the date shown.

Every ZIP code in Guayama, PR

Zones are published per ZIP code, not per metro area, so this is the exact answer rather than the metro area's average. The station column is the nearest one to that ZIP code's centroid and how far away it is — the same figure the tools use, shown here so you can see which ZIP codes are well covered and which are reaching.

ZIP code USDA zone Nearest NOAA station Distance
00714 13a Guayama 2E, PR 3.9 km
00723 13a Guayama 2E, PR 10.1 km
00784 13a Guayama 2E, PR 6.1 km

ZIP-code positions are area centroids, so a large rural ZIP code's listed distance is measured from the middle of its area rather than from any particular address in it.

Your own ZIP

Work out your own dates

Each of these takes a ZIP code and answers for that ZIP alone, citing the station it used and how far away it is. There is a ZIP box in the header of every page.

Other places to compare

Gardening in Puerto Rico — zones 11b– 13b covers the whole state: how its 132 ZIP codes divide between 5 hardiness zones, and the freeze dates across every NOAA station in it.

Other metro areas in PR:

All 388 metro areas, by state

Gear

If you want to act on this

Each link opens an Amazon search rather than a product we picked. We have not tested these and do not rank them — the search is the honest version, and you choose.

As an Amazon Associate we earn from qualifying purchases. That costs you nothing extra, and it buys no influence over anything on this site: the dates come from NOAA normals and the zones from the USDA, and no product affects either.

Sources

Where these numbers come from

The hardiness zone is the USDA 2023 Plant Hardiness Zone Map, published per ZIP code by PRISM at Oregon State. The freeze dates are NOAA's 1991–2020 Climate Normals, read from every station whose normals cover a ZIP code in this metro. Nothing here is estimated, and no station stands in for another.

This page names no single station on purpose. Picking one to represent a metro sounds reasonable and is not: the station serving the most ZIP codes is an artifact of where ZIP centroids happen to fall, and it selects a lock on the Monongahela for Pittsburgh and a far southern suburb for Chicago. A range across every station is true; a single cited date for a whole metro is not.

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