Hartly Delaware Climate Data

Monthly Average Climate Data for Hartly Delaware

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January24.8 °F42.8 °F3.36 in.
February25.9 °F44.8 °F2.99 in.
March33.2 °F52.6 °F4.12 in.
April43.4 °F64.1 °F3.6 in.
May53.1 °F73.1 °F3.93 in.
June62.1 °F81.9 °F4.51 in.
July67.1 °F86.5 °F4.32 in.
August65.1 °F84.7 °F4.36 in.
September58.4 °F78.9 °F4.19 in.
October46.3 °F67.7 °F3.93 in.
November36.2 °F56.7 °F3.15 in.
December29.6 °F47.2 °F3.89 in.
Annual45.4 °F65.1 °F46.35 in.

Climate Data for Hartly Delaware

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 11 - Apr. 20
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 ConditionsExtreme Drought
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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