Glenville Connecticut Climate Data

Monthly Average Climate Data for Glenville Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.8 °F38.6 °F3.98 in.
February24.7 °F40.8 °F2.9 in.
March31.4 °F47.8 °F4.15 in.
April41.3 °F60.0 °F4.04 in.
May51.1 °F70.0 °F3.79 in.
June60.6 °F78.9 °F4.58 in.
July66.1 °F84.3 °F3.99 in.
August65.4 °F82.2 °F4.62 in.
September58.5 °F75.7 °F4.8 in.
October47.8 °F64.6 °F4.49 in.
November38.2 °F53.7 °F3.91 in.
December30.3 °F44.0 °F4.41 in.
Annual44.9 °F61.7 °F49.66 in.

Climate Data for Glenville Connecticut

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation