Bield:Farm
Frost dates · Rhode Island

Rhode Island frost dates,
county by county.

Last spring frost and first fall frost probability data for all 5 counties in Rhode Island, computed from the NOAA 1991–2020 Climate Normals. Every county page surfaces the full probability table at three temperature thresholds plus crop-specific planting guidance.

Variation across Rhode Island

18 days separate the earliest and latest counties.

The median last spring frost in Newport County is March 31 18 days earlier than Washington County at April 18. Statewide averages aren't useful planting tools; pick your county below for the data that actually applies to your fields.

By geography

Rhode Island counties on the map.

Each dot is a county. Click for full frost-date detail. Color shows last-spring-frost timing — sage = earliest, amber = latest.

Alphabetical

All Rhode Island counties — A to Z.