Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Rhode Island planting zones

Rhode Island spans USDA zones 6b to 7b on the 2023 map; the most common is 7a. The typical last spring frost is around Apr 22 and the first fall frost around Oct 20.

Zone map of Rhode Island

Outside Rhode Island is dimmed · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

ZIP codes per zone

6b−5 to 0 °F407a0 to 5 °F477b5 to 10 °F1

At a glance

ZIP codes88
Zones6b–7b
Typical last frostApr 22
Typical first frostOct 20

Largest cities in Rhode Island

Providence6b 7a
Last frost Apr 11 · first Oct 30 · 12 ZIPs
Warwick7a
Last frost Apr 11 · first Oct 30 · 4 ZIPs
Cranston6b 7a
Last frost Apr 11 · first Oct 30 · 3 ZIPs
Pawtucket7a
Last frost Apr 22 · first Oct 19 · 3 ZIPs
Newport7a
Last frost Apr 7 · first Nov 13 · 2 ZIPs
Wakefield7a
Last frost May 1 · first Oct 12 · 2 ZIPs

Rhode Island extremes

From the 2023 zone data and NOAA 1991–2020 normals of the nearest station. One entry per town.

Mildest winters

highest zone

  1. Block Island 028077b
  2. Adamsville 028017a
  3. Barrington 028067a
  4. Bradford 028087a
  5. Bristol 028097a
  6. Charlestown 028137a

Coldest winters

lowest zone

  1. Ashaway 028046b
  2. Carolina 028126b
  3. Chepachet 028146b
  4. Clayville 028156b
  5. Coventry 028166b
  6. West Greenwich 028176b

Longest growing season

median frost-free days

  1. Jamestown 02835216 d
  2. Newport 02840216 d
  3. Adamsville 02801206 d
  4. Little Compton 02837206 d
  5. Middletown 02842206 d
  6. Prudence Island 02872206 d

Shortest growing season

median frost-free days

  1. Carolina 02812159 d
  2. Hope Valley 02832159 d
  3. Rockville 02873159 d
  4. West Kingston 02892159 d
  5. Wyoming 02898159 d
  6. Kenyon 02836163 d

Wettest

precipitation per year

  1. Chepachet 0281453.8 in
  2. Clayville 0281553.8 in
  3. Foster 0282553.8 in
  4. North Scituate 0285753.8 in
  5. Pascoag 0285953.8 in
  6. Greene 0282753.4 in

Snowiest

snowfall per year

  1. Chepachet 0281462 in
  2. Clayville 0281562 in
  3. Foster 0282562 in
  4. North Scituate 0285762 in
  5. Pascoag 0285962 in
  6. Manville 0283842 in

Hottest summers

days at 90 °F or more

  1. Coventry 0281622 d
  2. West Greenwich 0281722 d
  3. East Greenwich 0281822 d
  4. Fiskeville 0282322 d
  5. Greene 0282722 d
  6. Hope 0283122 d

All places in Rhode Island

A

Adamsville · Ashaway

B

Barrington · Block Island · Bradford · Bristol

C

Carolina · Central Falls · Charlestown · Chepachet · Clayville · Coventry · Cranston · Cumberland

E

East Greenwich · East Providence · Exeter

F

Fiskeville · Forestdale · Foster

G

Glendale · Greene · Greenville

H

Harmony · Harrisville · Hope · Hope Valley · Hopkinton

J

Jamestown · Johnston

K

Kenyon · Kingston

L

Lincoln · Little Compton

M

Manville · Mapleville · Middletown

N

Narragansett · Newport · North Kingstown · North Providence · North Scituate · North Smithfield

O

Oakland

P

Pascoag · Pawtucket · Peace Dale · Portsmouth · Providence · Prudence Island

R

Riverside · Rockville · Rumford

S

Saunderstown · Shannock · Slatersville · Smithfield

T

Tiverton

W

Wakefield · Warren · Warwick · West Greenwich · West Kingston · West Warwick · Westerly · Wood River Junction · Woonsocket · Wyoming

Questions

What planting zones are in Rhode Island?

Rhode Island spans USDA hardiness zones 6b to 7b on the 2023 map. The most common zone is 7a (47 of 88 ZIP codes).

When is the last frost in Rhode Island?

Across Rhode Island, the median last spring frost ranges from about Apr 7 to May 3 depending on location; the typical ZIP code sees it around Apr 22. Look up your ZIP code for a local date.