Glassboro New Jersey Climate Data

Monthly Average Climate Data for Glassboro New Jersey

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-4.1 °C5.2 °C99.57 mm
February-3.3 °C6.6 °C74.17 mm
March0.3 °C10.8 °C116.84 mm
April6.1 °C17.7 °C92.2 mm
May11.3 °C23.1 °C97.03 mm
June16.6 °C28.1 °C110.49 mm
July19.7 °C30.3 °C120.9 mm
August18.7 °C29.3 °C118.11 mm
September15 °C25.8 °C104.14 mm
October8.3 °C19.2 °C101.35 mm
November2.7 °C13.2 °C76.96 mm
December-1.2 °C7.9 °C108.97 mm
Annual7.5 °C18.1 °C1220.73 mm

Climate Data for Glassboro New Jersey

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7b : -15°C to -12.2°C
Plant Hardiness Zone - 2012Zone 7a : -17.8°C to -15°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate
2024 plantmaps.com