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

12.8°C

across all months

Warmest month

29.5°C

Jul average high

Coolest month

-4.5°C

Jan average low

Annual rainfall

1179mm

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

35.4°C

5 July 2022

Coldest day

-27.4°C

2 January 2018

Wettest day

89.3mm

8 September 2018

Windiest day

8.7m/s

24 February 2019