Sussex County, New Jersey · Frost dates

Sussex County frost dates.

First-frost, last-frost, and growing-season length for Sussex County, New Jersey. Sourced from NOAA 1991-2020 Climate Normals.

Data confidence: high · USDA zone: 7a

32°F — light freeze

Last spring frost

10%
05-18
20%
05-11
50%
05-01
80%
04-23
90%
04-19

First fall frost

10%
09-30
20%
10-03
50%
10-12
80%
10-23
90%
10-28

28°F — killing freeze

Last spring freeze

10%
05-04
20%
04-29
50%
04-19
80%
04-09
90%
04-04

First fall freeze

10%
10-09
20%
10-14
50%
10-25
80%
11-03
90%
11-07

Growing season length (days, 28°F threshold)

Short year
158
Median
189
Long year
217

Source NOAA station

SUSSEX AP, NJ US

5.6 mi · 30 yrs of record (19912020) · 421 ft elev.

Data from SUSSEX AP, NJ US, 5.6 miles away with 30-year NOAA record (1991-2020).

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