Marlboro weather by month
What a typical year looks like in Marlboro, New Jersey: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Seabrook Farms, 9 km from Marlboro; records cover 1963–2026.
The year at a glance
- Precipitation a year
- 47.7 in1212 mm
- Snow a year
- 12 in30 cm
- Last spring freeze
- Apr 7
- First fall freeze
- Nov 4
- Heating degree days
- 4,784
- Cooling degree days
- 1,135
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 11°−12° (heating, 99%) and 95°35° (cooling, 1%).
Month by month
Marlboro in January
Highs average 41°5° and lows 25°−4°, with 3.4 in86 mm of precipitation and 4 in10 cm of snow in a typical January.
- Record high
- 70°21° (1967)
- Record low
- −24°−31° (1985)
- Heating degree days
- 990
- Cooling degree days
- 0
Marlboro in February
Highs average 44°6° and lows 27°−3°, with 2.7 in69 mm of precipitation and 4 in9 cm of snow in a typical February.
- Record high
- 76°24° (2018)
- Record low
- −4°−20° (1967)
- Heating degree days
- 836
- Cooling degree days
- 0
Marlboro in March
Highs average 51°11° and lows 33°1°, with 4.6 in116 mm of precipitation and 1.8 in4.6 cm of snow in a typical March.
- Record high
- 86°30° (1998)
- Record low
- 4°−16° (2015)
- Heating degree days
- 706
- Cooling degree days
- 1
Marlboro in April
Highs average 63°17° and lows 42°6°, with 3.7 in93 mm of precipitation and 0.2 in0.5 cm of snow in a typical April.
- Record high
- 95°35° (2002)
- Record low
- 22°−6° (1965)
- Heating degree days
- 378
- Cooling degree days
- 12
Marlboro in May
Highs average 73°23° and lows 52°11°, with 3.6 in92 mm of precipitation in a typical May.
- Record high
- 95°35° (1991)
- Record low
- 30°−1° (1966)
- Heating degree days
- 142
- Cooling degree days
- 64
Marlboro in June
Highs average 82°28° and lows 62°17°, with 4.4 in112 mm of precipitation in a typical June.
- Record high
- 100°38° (1988)
- Record low
- 41°5° (1972)
- Heating degree days
- 18
- Cooling degree days
- 220
Marlboro in July
Highs average 86°30° and lows 67°20°, with 4.6 in116 mm of precipitation in a typical July.
- Record high
- 103°39° (2010)
- Record low
- 49°9° (1971)
- Heating degree days
- 0
- Cooling degree days
- 364
Marlboro in August
Highs average 84°29° and lows 65°19°, with 4.9 in125 mm of precipitation in a typical August.
- Record high
- 100°38° (1988)
- Record low
- 44°7° (1976)
- Heating degree days
- 1
- Cooling degree days
- 306
Marlboro in September
Highs average 78°26° and lows 59°15°, with 4.3 in108 mm of precipitation in a typical September.
- Record high
- 98°37° (1973)
- Record low
- 36°2° (1974)
- Heating degree days
- 42
- Cooling degree days
- 147
Marlboro in OctoberThis month
Highs average 67°19° and lows 47°8°, with 4 in102 mm of precipitation in a typical October.
- Record high
- 94°34° (2019)
- Record low
- 23°−5° (1969)
- Heating degree days
- 277
- Cooling degree days
- 20
Marlboro in November
Highs average 56°13° and lows 38°3°, with 3.2 in81 mm of precipitation and 0.1 in0.3 cm of snow in a typical November.
- Record high
- 82°28° (2024)
- Record low
- 15°−9° (1976)
- Heating degree days
- 554
- Cooling degree days
- 1
Marlboro in December
Highs average 46°8° and lows 30°−1°, with 4.4 in112 mm of precipitation and 2.2 in5.6 cm of snow in a typical December.
- Record high
- 74°23° (1998)
- Record low
- 3°−16° (1967)
- Heating degree days
- 840
- Cooling degree days
- 0