Thompson Connecticut Climate Data

Monthly Average Climate Data for Thompson Connecticut

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.3 °C1.8 °C100.58 mm
February-7.7 °C3.2 °C87.12 mm
March-3.6 °C7.4 °C114.55 mm
April2 °C14.4 °C114.3 mm
May7.7 °C20.3 °C89.41 mm
June12.8 °C24.8 °C111 mm
July16.2 °C27.7 °C100.33 mm
August15.2 °C26.7 °C109.47 mm
September11.2 °C22.9 °C106.68 mm
October4.9 °C16.4 °C124.46 mm
November-0.3 °C10.4 °C102.11 mm
December-4.9 °C4.7 °C120.14 mm
Annual3.8 °C15.1 °C1280.15 mm

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 : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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