Bristol Connecticut Climate Data

Monthly Average Climate Data for Bristol Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.2 °F36.2 °F3.69 in.
February19.4 °F39.0 °F3.37 in.
March26.8 °F46.9 °F4.64 in.
April37.2 °F59.7 °F4.1 in.
May47.5 °F70.7 °F4.05 in.
June56.8 °F79.2 °F4.57 in.
July62.2 °F84.4 °F4.5 in.
August60.5 °F82.5 °F4.43 in.
September53.2 °F75.3 °F4.84 in.
October41.8 °F63.2 °F5.49 in.
November32.2 °F51.6 °F4.06 in.
December24.4 °F41.3 °F4.68 in.
Annual40 °F60.8 °F52.42 in.

Climate Data for Bristol Connecticut

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
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 ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation