Dewey Beach Delaware Climate Data

Monthly Average Climate Data for Dewey Beach Delaware

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January29.6 °F43.8 °F3.46 in.
February30.4 °F45.3 °F3.13 in.
March36.8 °F51.1 °F4.2 in.
April46.1 °F61.8 °F3.45 in.
May55.3 °F70.3 °F3.58 in.
June65.1 °F79.4 °F3.76 in.
July70.2 °F84.8 °F4.61 in.
August69.3 °F83.1 °F4.58 in.
September64.0 °F77.7 °F4.13 in.
October52.6 °F67.9 °F4.45 in.
November41.8 °F57.1 °F3.44 in.
December34.2 °F48.8 °F4.15 in.
Annual49.6 °F64.3 °F46.94 in.

Climate Data for Dewey Beach 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 8a : 10°F to 15°F
Plant Hardiness Zone - 2012Zone 7b : 5°F to 10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate