Stamford Connecticut Climate Data

Monthly Average Climate Data for Stamford Connecticut

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January24.2 °F38.8 °F4.01 in.
February24.7 °F40.6 °F2.98 in.
March31.6 °F47.2 °F4.22 in.
April41.4 °F59.1 °F4.06 in.
May51.0 °F68.9 °F3.82 in.
June60.8 °F78.0 °F4.67 in.
July66.6 °F83.8 °F3.84 in.
August65.8 °F81.7 °F4.56 in.
September58.5 °F76.0 °F4.77 in.
October48.4 °F64.4 °F4.49 in.
November38.5 °F53.7 °F4.01 in.
December30.5 °F44.1 °F4.56 in.
Annual45.2 °F61.4 °F49.99 in.

Climate Data for Stamford 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