Thompson Connecticut Climate Data

Monthly Average Climate Data for Thompson Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.0 °F35.3 °F3.96 in.
February18.1 °F37.8 °F3.43 in.
March25.5 °F45.4 °F4.51 in.
April35.6 °F57.9 °F4.5 in.
May45.9 °F68.6 °F3.52 in.
June55.0 °F76.6 °F4.37 in.
July61.1 °F81.8 °F3.95 in.
August59.3 °F80.0 °F4.31 in.
September52.2 °F73.2 °F4.2 in.
October40.8 °F61.5 °F4.9 in.
November31.4 °F50.8 °F4.02 in.
December23.1 °F40.5 °F4.73 in.
Annual38.8 °F59.1 °F50.4 in.

Climate Data for Thompson Connecticut

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year