Best year time to visit Waterloo

General weather information about Waterloo

Average annual temperature is 8.0 °C

Absolute maximum temperature: 34.6 °C

Absolute minimum temperature: -29.0 °C

Number of sunny days: 202 days

Number of rainy days: 107 days

Number of snow days: 56 days

Look at detailed online map of Waterloo

* Weather data for Waterloo United States is based on climate observations for 2026 year

Waterloo air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)6.35.67.521.926.327.333.834.628.023.414.413.0
Average daytime temperature (°C)-0.60.81.69.119.720.929.227.922.614.38.65.5
Average temperature (°C)-4.0-3.4-3.33.413.815.222.120.815.98.54.42.0
Average night temperature (°C)-7.2-6.5-7.6-1.18.410.514.914.910.44.21.6-0.5
Absolute minimum temperature (°C)-27.0-29.0-16.4-14.32.54.28.611.33.5-15.4-7.7-7.6

Waterloo monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.08.0
Daylight mean duration (h)9.110.411.913.514.915.615.314.112.510.99.58.7
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.08.08.0
Sunshine mean duration (h)5.87.57.510.312.011.313.611.310.17.97.06.4
Precipitation (mm)22164753548635450261112
Sunny days16181317610201920192123
Rainy days13352420111210873
Snow days14715810000425

Waterloo - weather forecast by months

Waterloo weather in januaryWaterloo weather in februaryWaterloo weather in marchWaterloo weather in aprilWaterloo weather in mayWaterloo weather in juneWaterloo weather in julyWaterloo weather in augustWaterloo weather in septemberWaterloo weather in octoberWaterloo weather in novemberWaterloo weather in december

Best time to visit Waterloo:

The best time to visit Waterloo during the most sunny months:

  • May — 12.0(h)
  • July — 13.6(h)

Months with the longest average daylight duration in Waterloo:

  • June — 15.6(h)
  • July — 15.3(h)

The largest precipitation sum in Waterloo is at

  • March — 47(mm)
  • April — 53(mm)
  • May — 54(mm)
  • June — 86(mm)
  • August — 54(mm)
  • September — 50(mm)

    • Weather forecast in the closest to Waterloo admin centers

    Weather forecast in the closest towns to Waterloo

    Explore Waterloo

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

    When is the best time to visit Waterloo?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Waterloo.
    What is the weather like in Waterloo?
    See average temperature, rainfall and daylight hours for Waterloo by month in the table above.
    How many sunny days does Waterloo have?
    The monthly weather statistics above show sunshine and rainfall patterns for Waterloo throughout the year.