New Haven climate

Typical historical weather for New Haven, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.

Want today's actual conditions instead? See the current forecast for New Haven.

Annual average

14°C

across all months

Warmest month

31.1°C

Jul average high

Coolest month

-3.8°C

Jan average low

Annual rainfall

1119mm

total per year

Monthly averages

Average daily high/low temperature (band) and monthly rainfall (bars).

● Avg high● Avg low▮ Rainfall

Records on file

Hottest day

39.3°C

22 July 2017

Coldest day

-21.4°C

14 January 2024

Wettest day

93.2mm

29 April 2017

Windiest day

7.6m/s

5 March 2025