South Windsor Connecticut Climate Data

Monthly Average Climate Data for South Windsor Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.0 °F36.0 °F3.49 in.
February20.4 °F38.6 °F3.09 in.
March28.3 °F46.8 °F4.2 in.
April38.8 °F59.6 °F4.04 in.
May49.0 °F70.5 °F3.58 in.
June58.3 °F78.9 °F4.45 in.
July63.8 °F84.3 °F4.13 in.
August62.1 °F82.7 °F4.22 in.
September54.6 °F75.6 °F4.52 in.
October43.1 °F63.4 °F4.93 in.
November33.3 °F51.7 °F3.79 in.
December25.3 °F41.3 °F4.37 in.
Annual41.3 °F60.8 °F48.81 in.

Climate Data for South Windsor Connecticut

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost125-150 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