Hamden Connecticut Climate Data

Monthly Average Climate Data for Hamden Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.7 °F36.7 °F3.87 in.
February21.0 °F39.3 °F3.4 in.
March28.2 °F47.0 °F4.45 in.
April38.3 °F59.0 °F4.39 in.
May48.2 °F69.9 °F4.16 in.
June57.7 °F78.3 °F4.59 in.
July63.3 °F83.9 °F4.19 in.
August61.8 °F82.0 °F4.16 in.
September54.6 °F75.4 °F4.65 in.
October42.8 °F63.5 °F5.36 in.
November33.2 °F52.0 °F3.99 in.
December25.5 °F41.8 °F4.65 in.
Annual41.2 °F60.7 °F51.86 in.

Climate Data for Hamden Connecticut

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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