Middlesex County, New Jersey · Frost dates

Middlesex County frost dates.

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

Data confidence: high · USDA zone: 7a

32°F — light freeze

Last spring frost

10%
05-01
20%
04-25
50%
04-15
80%
04-06
90%
04-02

First fall frost

10%
10-11
20%
10-15
50%
10-26
80%
11-03
90%
11-08

28°F — killing freeze

Last spring freeze

10%
04-17
20%
04-10
50%
04-02
80%
03-24
90%
03-18

First fall freeze

10%
10-23
20%
10-28
50%
11-07
80%
11-17
90%
11-23

Growing season length (days, 28°F threshold)

Short year
189
Median
219
Long year
250

Source NOAA station

NEW BRUNSWICK 3 SE, NJ US

2.4 mi · 30 yrs of record (19912020) · 111 ft elev.

Data from NEW BRUNSWICK 3 SE, NJ US, 2.4 miles away with 30-year NOAA record (1991-2020).

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