Frost dates / Rhode Island / East Providence

Frost dates in East Providence, RI

The station on this page is PROVIDENCE T F GREEN AP, RI US (USW00014765), 6.6 miles from the city point. Population in the Census 2024 estimate is 47,961.

Zone 7aUSDA average annual extreme minimum 0°F to 5°F, from ZIP 02914 (1 miles from the city point used on this page).

Median last 32°F is April 11. Median first 32°F is October 30. The 50% growing-season length is 199 days. The green band runs from the median last frost to the median first frost. Thin ticks mark the 10%, 50%, and 90% dates.

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

Last 32°F in spring

NCEI’s probability is the chance the last spring minimum of 32°F or lower occurs on or after the date.

Probability	Date	How to read it
90%	April 1	Earlier date. A last 32°F on or after this day is common.
50%	April 11	Median.
10%	April 23	Later date. A last 32°F on or after this day is uncommon.

First 32°F in fall

NCEI’s probability is the chance the first autumn minimum of 32°F or lower occurs on or before the date.

Probability	Date	How to read it
10%	October 16	Earlier date. A first 32°F on or before this day is uncommon.
50%	October 30	Median.
90%	November 12	Later date. A first 32°F on or before this day is common.

32°F growing-season length

Days between the last spring 32°F and the first autumn 32°F. The figure is a length the season meets or exceeds at that probability, from NCEI, not a subtraction done on this site.

Probability the season is at least this long	Days
10%	216
50%	199
90%	183

28°F threshold

	10%	50%	90%
Last, on or after	April 11	April 1	March 18
First, on or before	October 29	November 9	November 26
Season at least	242 days	221 days	205 days

36°F threshold

	10%	50%	90%
Last, on or after	May 7	April 26	April 14
First, on or before	October 5	October 18	November 1
Season at least	191 days	175 days	159 days

Station PROVIDENCE T F GREEN AP, RI US (USW00014765). Completeness flag S, 30 years used for the 32°F dates. NCEI’s annual probability of at least one day at or below 32°F is 100%. Freeze dates are conditional on that threshold occurring. Elevation 18.3 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.

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East Providence, RI

Zone 7aAverage annual extreme minimum 0°F to 5°F

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

Rhode Island. Nearest qualified station: PROVIDENCE T F GREEN AP, RI US (USW00014765), 6.6 miles. Median last 32°F April 11. Median first 32°F October 30. The 50% growing-season length is 199 days.

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32°F probabilities at this station

	10%	50%	90%
Last 32°F on or after	April 23	April 11	April 1
First 32°F on or before	October 16	October 30	November 12

Column order matches the NCEI file: for the last freeze, 10% is the later date and 90% is the earlier date. How to read the probabilities.

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Planting calendar

Frost dates for Rhode Island are above. Planting windows appear for states with a cited extension guide. The fall and seed tools use the numbers you enter and the station dates.

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