Deconstruct SunRhode Island Hardiness Zones
Rhode Island covers USDA plant hardiness zones 6b to 7b on the 2023 map, so its coldest areas average −5 to 0 °F on the coldest winter night. Find your zone by ZIP code, or pick a city below for its zone, sunrise and daylight by month.
Rhode Island hardiness zone map
Source: USDA Plant Hardiness Zone Map, 2023. Agricultural Research Service, U.S. Department of Agriculture, planthardiness.ars.usda.gov. Underlying data © PRISM Group, Oregon State University, prism.oregonstate.edu, accessed 2026-08-30.
Zones and daylight by city
| City | Zone | Coldest night | Longest day | Shortest day |
|---|---|---|---|---|
| Providence | 7a | 0 to 5 °F | 15h 13m | 9h 08m |
| Warwick | 7a | 0 to 5 °F | 15h 13m | 9h 09m |
| Cranston | 7a | 0 to 5 °F | 15h 13m | 9h 08m |
| Newport | 7a | 0 to 5 °F | 15h 11m | 9h 10m |
Gardening in Rhode Island?
Your zone says what survives winter. Deconstruct Sun measures how many hours of direct sun your exact spot gets, so you can pick plants that thrive. Free on iPhone.
Questions
What hardiness zones are in Rhode Island?
Rhode Island spans USDA zones 6b to 7b on the 2023 map. Providence is in zone 7a.
How do I find my exact zone in Rhode Island?
Enter your ZIP code in the hardiness zone lookup on this site. It reads the 2023 USDA data for that ZIP and warns you if you are near a zone boundary.
How much sun do gardens in Rhode Island get?
In Providence, an open spot gets up to 15.2 hours of daylight in June but only 9.1 in December. Trees and buildings cut that down, especially in winter. The Deconstruct Sun app measures the real direct-sun hours for one exact spot.