Wilmington Delaware Climate Data

Monthly Average Climate Data for Wilmington Delaware

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January25.1 °F40.3 °F3.53 in.
February26.2 °F42.7 °F2.91 in.
March33.3 °F50.6 °F4.38 in.
April43.9 °F62.6 °F3.84 in.
May53.5 °F72.0 °F3.81 in.
June62.8 °F81.1 °F4.63 in.
July68.3 °F85.6 °F4.82 in.
August66.6 °F83.8 °F4.34 in.
September59.6 °F77.6 °F4.37 in.
October47.5 °F65.8 °F3.84 in.
November37.3 °F54.9 °F3.09 in.
December30.2 °F45.1 °F4.26 in.
Annual46.2 °F63.5 °F47.82 in.

Climate Data for Wilmington Delaware

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 : 5°F to 10°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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