Last Frost Day

Frost history / Sussex 8 Nnw, NJ

Sussex 8 Nnw, NJ: frost dates by year

Last spring and first fall frost at NOAA station USC00288648, 1992 to 2003, measured from daily minimum temperatures.

Elevation 1,020 ft, 41.325, -74.645. Download the data (JSON), NOAA daily records

Summary at 32°F

Last spring frostFirst fall frost
MedianApr 18Oct 5
EarliestMar 25 (1998)Sep 29 (2000)
LatestMay 19 (2002)Nov 4 (1995)
Trend7.6 days later per decade0.7 days earlier per decade
Years with data1212

At 28°F (hard freeze) the median last spring date is Apr 8 and the median first fall date is Oct 31.

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 15May 3020001992: Apr 151993: Apr 271994: Apr 221995: Apr 171996: Apr 151997: Apr 181998: Mar 251999: Apr 242000: Apr 182001: Apr 192002: May 192003: Apr 18

First fall frost (32°F)

Sep 12Sep 27Oct 12Oct 27Nov 1120001992: Oct 11993: Oct 11994: Oct 111995: Nov 41996: Oct 41997: Oct 21998: Nov 31999: Oct 72000: Sep 292001: Oct 72002: Oct 152003: Oct 3

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
2003Apr 18Oct 3Apr 8Nov 8
2002May 19Oct 15Apr 7Oct 22
2001Apr 19Oct 7Apr 19Oct 9
2000Apr 18Sep 29Apr 14Nov 18
1999Apr 24Oct 7Apr 5Oct 28
1998Mar 25Nov 3Mar 25Nov 3
1997Apr 18Oct 2Apr 10Oct 23
1996Apr 15Oct 4Apr 9Nov 3
1995Apr 17Nov 4Apr 10Nov 5
1994Apr 22Oct 11Apr 8Nov 12
1993Apr 27Oct 1Mar 23Oct 11
1992Apr 15Oct 1Apr 14Oct 6

"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.