Phillipsburg, New Jersey climate: Normal weather by month, frost dates and records
Phillipsburg's normal year runs from 22°F January nights to 86°F July afternoons, with 51.0 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 11.2°C, January lows of −6°C, July highs of 30°C, 1,296 mm of precipitation a year.
- NOAA stationPhillipsburg-Easton Bridge
- Station IDUSC00286979
- Location40.70°N 75.20°W
- Elevation232 ft (71 m)
- Population15,393
On October 14, the normal high in Phillipsburg is 65°F and the normal low 44°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Phillipsburg.
- Jan 38° 22°
- Feb 40° 22°
- Mar 49° 29°
- Apr 62° 39°
- May 72° 49°
- Jun 81° 59°
- Jul 86° 64°
- Aug 83° 62°
- Sep 77° 55°
- Oct 65° 44°
- Nov 53° 33°
- Dec 43° 26°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Phillipsburg each month?
July is the warmest month, with normal highs of 86°F; January the coldest, with normal lows of 22°F. The most precipitation falls in July (5.57 in), the least in February (2.97 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 38°F | 22°F | 29.6°F | 3.67 | – | <1 | 28 | 9 h 30 min |
| February | 40°F | 22°F | 31.3°F | 2.97 | – | <1 | 24 | 10 h 40 min |
| March | 49°F | 29°F | 39.1°F | 3.65 | – | <1 | 21 | 11 h 50 min |
| April | 62°F | 39°F | 50.9°F | 3.94 | – | <1 | 6 | 13 h 20 min |
| May | 72°F | 49°F | 60.6°F | 4.27 | – | 1 | <1 | 14 h 20 min |
| June | 81°F | 59°F | 70.0°F | 4.82 | – | 3 | <1 | 15 h |
| July | 86°F | 64°F | 74.7°F | 5.57 | – | 10 | <1 | 14 h 50 min |
| August | 83°F | 62°F | 72.3°F | 5.18 | – | 4 | <1 | 13 h 50 min |
| September | 77°F | 55°F | 65.7°F | 4.72 | – | 3 | <1 | 12 h 30 min |
| October | 65°F | 44°F | 54.1°F | 4.48 | – | <1 | 1 | 11 h 10 min |
| November | 53°F | 33°F | 43.0°F | 3.37 | – | <1 | 16 | 10 h |
| December | 43°F | 26°F | 34.2°F | 4.37 | – | <1 | 23 | 9 h 20 min |
| Year (annual) | 62°F | 42°F | 52.1°F | 51.01 | – | 21 | 119 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 3°C | −6°C | −1.3°C | 93 mm |
| February | 5°C | −5°C | −0.4°C | 75 mm |
| March | 9°C | −1°C | 3.9°C | 93 mm |
| April | 17°C | 4°C | 10.5°C | 100 mm |
| May | 22°C | 10°C | 15.9°C | 108 mm |
| June | 27°C | 15°C | 21.1°C | 122 mm |
| July | 30°C | 18°C | 23.7°C | 141 mm |
| August | 28°C | 17°C | 22.4°C | 132 mm |
| September | 25°C | 13°C | 18.7°C | 120 mm |
| October | 18°C | 6°C | 12.3°C | 114 mm |
| November | 12°C | 0°C | 6.1°C | 86 mm |
| December | 6°C | −3°C | 1.2°C | 111 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Springtown (1 mi NNE) (10 miles away), gets 41 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00286979; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Phillipsburg?
Normal highs sit between 65°F and 85°F in May, June, August and September.
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00286979.
When is the last frost in Phillipsburg?
In Phillipsburg, the last spring frost (32°F) comes after April 18 in half of years and after May 5 in one year in ten; the first autumn frost comes before October 25 in half of years and before October 11 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 181 year in 10 after May 5; 9 in 10 after April 5
- First autumn frost, half of years before
- October 251 year in 10 before October 11; 9 in 10 before November 5
NOAA puts the median frost-free season at 188 days, and the season without a hard freeze (28°F) at 212 days.
A hard freeze (28°F) comes after April 4 in half of springs and before November 4 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Phillipsburg in zone 7a in ZIP code 08865, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Phillipsburg's NOAA station is in zone 7a: the coldest night of a typical year reaches 2°F (17 complete years).
Frost dates for every NOAA station in New Jersey · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00286979; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Phillipsburg?
In a normal year in Phillipsburg, 21 days a year reach 90°F and 119 nights fall to 32°F or colder.
- Days at 90°F or more
- 21a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 119a normal year
- Days that stay below freezing
- 21high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00286979.
How sunny is Phillipsburg?
Over a year 72% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Phillipsburg, 3.9 kWh per square metre a day. July is the sunniest month (79%) and December the cloudiest (63%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 65% | 1.9 |
| February | 68% | 2.7 |
| March | 67% | 3.6 |
| April | 70% | 4.8 |
| May | 69% | 5.3 |
| June | 74% | 5.9 |
| July | 79% | 6.0 |
| August | 77% | 5.2 |
| September | 75% | 4.2 |
| October | 69% | 3.0 |
| November | 70% | 2.1 |
| December | 63% | 1.6 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Phillipsburg need?
A normal year in Phillipsburg brings 5,516 heating degree days, 3% more than the median U.S. place (5,373), and 848 cooling degree days, 7% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,197 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,097 | 0 |
| February | 945 | 0 |
| March | 805 | 0 |
| April | 430 | 5 |
| May | 174 | 38 |
| June | 22 | 170 |
| July | 1 | 299 |
| August | 4 | 228 |
| September | 78 | 98 |
| October | 345 | 9 |
| November | 662 | 0 |
| December | 955 | 0 |
| Year (annual) | 5,516 | 848 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00286979. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Phillipsburg been warmer than normal lately?
2024 averaged 54.2°F, 2.1°F above the 1991-2020 normal of 52.1°F. 2 of the 2 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 53.2°F | +1.1°F | – |
| 2024 | 54.2°F | +2.1°F | 43.53 |
Source: observed years: ACIS, station USC00286979. A year counts only with all twelve months complete.
How does Phillipsburg's climate compare?
Phillipsburg is warmer than 6 of the other 32 places with their own NOAA record in New Jersey, and wetter than 27. Across the 7,247 U.S. stations with normals, its annual mean of 52.1°F is warmer than 50%.
In the Köppen classification computed from these normals, Phillipsburg is Dfa: continental, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Phillipsburg share this climate record?
28 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Bethlehem, PAalso near: Allentown (5 mi, 53.1°F a year); Springtown (1 mi NNE) (6 mi, 50.9°F a year)79,453 people · 10 mi SW
- Easton, PA30,432 people · 1 mi SW
- Wilson, PA8,169 people · 2 mi W
- Middletown, PA7,620 people · 7 mi SW
- Chestnut Hill, PA6,774 people · 2 mi N
- Hellertown, PA6,145 people · 11 mi SW
- Nazareth, PA6,088 people · 7 mi NW
- Fountain Hill, PA4,880 people · 12 mi SW
- Palmer Heights, PA3,963 people · 4 mi W
- Eastlawn Gardens, PA3,671 people · 6 mi NW
- Freemansburg, PA2,973 people · 9 mi SW
- Bath, PA2,905 people · 10 mi W
- Coopersburg, PA2,534 people · 16 mi SW
- Old Orchard, PA1,829 people · 4 mi SW
- Morgan Hill, PA1,412 people · 2 mi S
- Tatamy, PA1,390 people · 4 mi NW
- West Easton, PA1,246 people · 2 mi SW
- Belfast, PA1,239 people · 7 mi NW
- Raubsville, PA1,042 people · 5 mi S
- DeSales University, PA994 people · 14 mi SW
- Stockertown, PA913 people · 5 mi NW
- Riegelsville, PA842 people · 7 mi S
- Glendon, PA370 people · 3 mi SW
- Martins Creek, PA346 people · 6 mi N
- Delaware Park, NJ305 people · 1 mi NE
- Harmony, NJ302 people · 5 mi NE
- Chapman, PA220 people · 11 mi NW
- Brainards, NJ172 people · 5 mi N
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Phillipsburg's climate
What is the coldest month in Phillipsburg?
January, with a normal high of 38°F and a normal low of 22°F. The warmest is July (86°F by day, 64°F at night).
Does it snow in Phillipsburg?
Yes. NOAA publishes no 1991-2020 snowfall normal for Phillipsburg's NOAA station; the nearest record that keeps one, Springtown (1 mi NNE) (10 miles away), records 41 inches of snow in a normal year.
What is the rainiest month in Phillipsburg?
July, with 5.57 in of precipitation in a normal year; the driest is February with 2.97 in.
What plant hardiness zone is Phillipsburg in?
The USDA's 2023 map puts Phillipsburg in zone 7a in ZIP code 08865, the nearest ZIP area. By the same method at Phillipsburg's NOAA station, the coldest night of a typical year reaches 2°F (17 years, 1991-2020): zone 7a.
How late can frost come in Phillipsburg?
In half of years the last 32°F night comes after April 18; in one year in ten it comes after May 5. Waiting until May 5 leaves about a one-in-ten chance of a later frost.
Nearby and next
- New Jersey climateThe statewide normals and every place in the state
- Springtown (1 mi NNE), PA9 miles from this station, 50.9°F a year
- Belvidere, NJ11 miles from this station, 50.1°F a year
- Allentown, PA14 miles from this station, 53.1°F a year
- Bucksville, PA14 miles from this station, 51.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made