Somerset County, New Jersey · Frost dates
Somerset County frost dates.
First-frost, last-frost, and growing-season length for Somerset County, New Jersey. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 7a
32°F — light freeze
Last spring frost
- 10%
- 05-14
- 20%
- 05-09
- 50%
- 04-30
- 80%
- 04-20
- 90%
- 04-15
First fall frost
- 10%
- 10-05
- 20%
- 10-10
- 50%
- 10-20
- 80%
- 11-01
- 90%
- 11-03
28°F — killing freeze
Last spring freeze
- 10%
- 05-01
- 20%
- 04-26
- 50%
- 04-15
- 80%
- 04-05
- 90%
- 04-01
First fall freeze
- 10%
- 10-15
- 20%
- 10-21
- 50%
- 10-31
- 80%
- 11-08
- 90%
- 11-12
Growing season length (days, 28°F threshold)
- Short year
- 167
- Median
- 199
- Long year
- 225
Source NOAA station
SOMERVILLE 4 NW, NJ US
3.9 mi · 30 yrs of record (1991–2020) · 134 ft elev.
Data from SOMERVILLE 4 NW, NJ US, 3.9 miles away with 30-year NOAA record (1991-2020).
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