Monthly Historical AveragesNew Canaan, CT
Average Temperature
High
21°
Feels 21
Low
10°
Feels 9
Average Precipitation
12 Days
88.3mm
0cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, May 17, 2026
Day
31°Feels 31
Wind
17 km/h W
Gust
37 km/h
Humidity
34%
P.O.P
10%
Night
17°Feels 17
Wind
12 km/h E
Gust
23 km/h
Humidity
83%
P.O.P
20%
Historical AveragesMay 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity