Rhode Island frost dates
The typical last spring frost is around Apr 11 in all 4 Rhode Island cities with frost dates.
4 of the 4 Rhode Island cities listed have typical frost dates. The longest frost-free season is 206 days in Newport; the shortest is 199 days in Cranston. For a single address, look up your ZIP code: rural ZIPs use their nearest suitable station.
| City | Last spring frost | 1 in 10 after | First fall frost | 1 in 10 before | Hard freeze (28°F) | Season |
|---|---|---|---|---|---|---|
| Cranston | Apr 11 | Apr 23 | Oct 30 | Oct 16 | Apr 1 / Nov 9 | 199 days |
| Newport | Apr 11 | Apr 24 | Nov 4 | Oct 22 | Mar 31 / Nov 16 | 206 days |
| Providence | Apr 11 | Apr 23 | Oct 30 | Oct 16 | Apr 1 / Nov 9 | 199 days |
| Warwick | Apr 11 | Apr 23 | Oct 30 | Oct 16 | Apr 1 / Nov 9 | 199 days |
Reading the table: Providence
In Providence, the last spring frost typically comes around Apr 11: in half of years it is earlier, in half later. In 1 year in 10 it comes after Apr 23, 12 days later, so tender plants set out after that date have a 90% chance of escaping frost. In fall, the first frost typically arrives around Oct 30, and in 1 year in 10 before Oct 16. Hard freezes (28°F) usually end earlier in spring and start later in fall: around Apr 1 and Nov 9 in Providence.
Frost dates at more Rhode Island weather stations
NOAA stations across Rhode Island used by our ZIP code lookup, named for the town they are in.
| Station | Elevation | Last spring frost | First fall frost |
|---|---|---|---|
| Kingston | 117 ft | May 3 (1 in 10 after May 16) | Oct 8 (before Sep 30) |
| N Foster 1 E | 630 ft | Apr 25 (1 in 10 after May 9) | Oct 19 (before Oct 4) |
| Tiverton | 90 ft | Apr 11 (1 in 10 after Apr 22) | Nov 2 (before Oct 20) |
| Westerly State Airport | 81 ft | Apr 11 (1 in 10 after Apr 26) | Oct 31 (before Oct 16) |
| Woonsocket | 110 ft | Apr 22 (1 in 10 after May 6) | Oct 19 (before Oct 5) |
32°F dates from NOAA 1991-2020 freeze probabilities for each city's station. "1 in 10 after": a 10% chance of a later spring frost (planting is 90% safe after it). How to read frost dates.