Frost dates for Phillipsburg-Easton Brg, New Jersey
Half of years have their last spring frost by April 18, but 1 year in 10 still frosts after May 5.
A frost date is really a percentile from 30 years of records at a nearby weather station: in about half of years a frost still comes after the median date. Both numbers are below, so you can choose the risk yourself.
The odds
Last spring frost
How often a frost still comes on or after each date.
- 1 year in 10
- May 5
- 1 year in 5
- April 29
- 3 years in 10
- April 24
- 2 years in 5
- April 21
- Half of years (the median)
- April 18
First fall freeze
How often the first freeze comes on or before each date.
- 1 year in 10
- October 11
- 1 year in 5
- October 16
- 3 years in 10
- October 19
- 2 years in 5
- October 22
- Half of years (the median)
- October 25
- Growing season
- about 188 days
- Hardiness zones nearby
- 6b, 7a
- Summer days
- a usual high of about 28 °C83 °F
- Lettuce and spinach run to seed
- June to September, in hot, long days (how we know)
Summer and rain
A growing garden needs about 25 mm1 in of water a week, rain and watering together. Here is what a normal month brings.
Month by month
- January
- high ~3 °C38 °F · low ~-6 °C22 °F · rain ~93 mm3.7 in
- February
- high ~5 °C40 °F · low ~-6 °C22 °F · rain ~75 mm3 in
- March
- high ~9 °C49 °F · low ~-2 °C29 °F · rain ~93 mm3.6 in
- April
- high ~17 °C62 °F · low ~4 °C39 °F · rain ~100 mm3.9 in
- May
- high ~22 °C72 °F · low ~10 °C49 °F · rain ~108 mm4.3 in
- June
- high ~27 °C81 °F · low ~15 °C59 °F · rain ~122 mm4.8 in
- July
- high ~30 °C86 °F · low ~18 °C64 °F · rain ~142 mm5.6 in
- August
- high ~28 °C83 °F · low ~17 °C62 °F · rain ~132 mm5.2 in
- September
- high ~25 °C77 °F · low ~12 °C54 °F · rain ~120 mm4.7 in
- October
- high ~18 °C65 °F · low ~6 °C44 °F · rain ~114 mm4.5 in
- November
- high ~12 °C53 °F · low ~0 °C33 °F · rain ~86 mm3.4 in
- December
- high ~6 °C42 °F · low ~-3 °C26 °F · rain ~111 mm4.4 in
Where these numbers come from
NOAA NCEI 1991–2020 Climate Normals, the Phillipsburg-Easton Brg station (listed by NOAA as Phillipsburg-Easton Brg, USC00286979), at 40.70, -75.20. These are that station’s own records, unshifted. The further your garden is from it, the less exactly they describe your ground. The planner finds the nearest station to your garden and lowers its confidence with distance, so no number is presented as if it were measured in your garden.
Cold air also pools in low ground on the clear, still nights when frost happens, so a hollow can freeze while a slope a few hundred feet away does not. No table can know that about your garden. A few seasons of your own logged frosts can.
ZIP codes nearest this station
07823, 07825, 07832, 07833, 07838, 07863, 07880, 07882, 08802, 08804, 08808, 08827…
+22 moreShow fewer
08865, 08886, 18013, 18014, 18016, 18017, 18018, 18020, 18032, 18040, 18042, 18045, 18063, 18064, 18072, 18083, 18085, 18091, 18109, 18343, 18351, 18353.
Nearby stations
The nearest stations and how their last-frost dates compare. Together they show how frost varies across your area.
- Lehighton 1 SSW, PA, last frost by April 21
- Somerville Somerset Airport, NJ, last frost by April 26
- Rodale Rsch Center, PA, last frost by April 26
- Mt Pocono Mountains Airport, PA, last frost by May 6
- Willow Grove Naval Air Station, PA, last frost by April 11
- Trenton State College, NJ, last frost by April 17
Other stations in New Jersey.
- Plainfield, NJ, last frost by April 11
- Boonton 1 SE, NJ, last frost by April 17
- Sussex 3 WNW, NJ, last frost by April 30
- Wanaque Raymond Dam, NJ, last frost by April 19
- Harrison, NJ, last frost by April 4
- Freehold-Marlboro, NJ, last frost by April 17
- Teterboro Airport, NJ, last frost by April 3
- Indian Mills 2 W, NJ, last frost by April 28
When do I plant? · Where the dates come from
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