Waterloo climate

Typical historical weather for Waterloo, 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 Waterloo.

Annual average

10.9°C

across all months

Warmest month

28.1°C

Jul average high

Coolest month

-5.9°C

Jan average low

Annual rainfall

1087mm

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

35.6°C

21 June 2022

Coldest day

-29.3°C

31 January 2019

Wettest day

73.4mm

11 January 2020

Windiest day

10.2m/s

23 December 2022