Seaford Delaware Climate Data

Monthly Average Climate Data for Seaford Delaware

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January25.7 °F44.2 °F3.44 in.
February27.0 °F47.0 °F3.0 in.
March33.1 °F53.9 °F4.16 in.
April43.6 °F64.8 °F3.56 in.
May53.6 °F74.0 °F3.84 in.
June63.0 °F82.9 °F4.17 in.
July67.7 °F87.1 °F4.37 in.
August65.3 °F85.0 °F4.77 in.
September59.1 °F79.5 °F4.51 in.
October47.5 °F69.0 °F4.07 in.
November36.5 °F58.1 °F3.29 in.
December30.2 °F49.0 °F3.83 in.
Annual46 °F66.2 °F47.01 in.

Climate Data for Seaford Delaware

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
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 ClassificationCfa - Humid Subtropical Climate