Last Frost Day

Frost history / Newport State Ap, RI

Newport State Ap, RI: frost dates by year

Last spring and first fall frost at NOAA station USW00014787, 1996 to 2024, measured from daily minimum temperatures.

Elevation 172 ft, 41.533, -71.283. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 16Nov 5
EarliestMar 28 (2010)Oct 19 (2001)
LatestMay 1 (2000)Nov 19 (2000)
Trend2.0 days earlier per decadelittle change (less than half a day per decade)
Years with data2829

At 28°F (hard freeze) the median last spring date is Mar 27 and the median first fall date is Nov 17.

The trend is a straight-line fit through the years with a freeze. A positive spring trend means the last frost now comes later. Short or patchy records give noisy trends.

Chart

Last spring frost (32°F)

Mar 16Mar 31Apr 15Apr 30May 152000201020201997: Apr 161998: Apr 121999: Apr 112000: May 12001: Apr 202002: Apr 272003: Apr 252004: Apr 62005: Apr 172006: Apr 222007: Apr 202008: Apr 162009: Apr 12010: Mar 282011: Apr 152012: Apr 12013: Apr 72014: Apr 212015: Apr 62016: Apr 102017: Apr 32018: Apr 112019: Apr 22020: Apr 212021: Apr 222022: Apr 182023: Apr 92024: Apr 26

First fall frost (32°F)

Oct 12Oct 27Nov 11Nov 262000201020201996: Nov 21997: Nov 131998: Nov 41999: Nov 82000: Nov 192001: Oct 192002: Nov 22003: Oct 202004: Nov 42005: Nov 182006: Nov 52007: Nov 82008: Oct 232009: Nov 72010: Nov 22011: Oct 312012: Nov 62013: Oct 262014: Nov 152015: Nov 182016: Nov 52017: Nov 102018: Oct 262019: Nov 82020: Oct 302021: Nov 52022: Nov 142023: Nov 22024: Nov 4

Dots are single years. The gray line is the median, the green line the fitted trend.

Year by year

YearLast spring 32°FFirst fall 32°FLast spring 28°FFirst fall 28°F
2024Apr 26Nov 4Mar 24Dec 2
2023Apr 9Nov 2Apr 3Nov 12
2022Apr 18Nov 14Mar 29Nov 15
2021Apr 22Nov 5Apr 4Nov 24
2020Apr 21Oct 30Mar 2Nov 18
2019Apr 2Nov 8Apr 2Nov 9
2018Apr 11Oct 26Apr 11Nov 14
2017Apr 3Nov 10Mar 24Nov 10
2016Apr 10Nov 5Apr 6Dec 4
2015Apr 6Nov 18Apr 2Nov 24
2014Apr 21Nov 15Mar 27Nov 16
2013Apr 7Oct 26Mar 22Nov 4
2012Apr 1Nov 6Mar 27Dec 6
2011Apr 15Oct 31Mar 28Dec 11
2010Mar 28Nov 2Mar 27Nov 29
2009Apr 1Nov 7Mar 24Dec 11
2008Apr 16Oct 23Mar 30Nov 19
2007Apr 20Nov 8Apr 7Nov 11
2006Apr 22Nov 5Mar 21Dec 5
2005Apr 17Nov 18Mar 27Nov 19
2004Apr 6Nov 4Mar 23Nov 9
2003Apr 25Oct 20Apr 1Oct 25
2002Apr 27Nov 2Apr 7Nov 3
2001Apr 20Oct 19Mar 29Nov 12
2000May 1Nov 19Mar 19Nov 23
1999Apr 11Nov 8Mar 27Nov 30
1998Apr 12Nov 4Mar 25Nov 10
1997Apr 16Nov 13Apr 10Nov 17
1996no dataNov 2no dataNov 13

"none" means the station recorded no freeze at that threshold in that half of the year. "no data" means more than 10% of the season's daily readings were missing. Years with no usable data are left out. See the methodology for the rules, and the ZIP lookup for 1991 to 2020 frost probabilities.