Best year time to visit Waterloo

General weather information about Waterloo

Average annual temperature is 14.4 °C

Absolute maximum temperature: 37.9 °C

Absolute minimum temperature: -9.1 °C

Number of sunny days: 197

Number of rainy days: 167

Number of snow days: 1

Average annual precipitation: 847 mm

Look at detailed online map of Waterloo

* Weather data for Waterloo United States is based on climate observations for 2023 year

Waterloo air temperature forecast for each month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Absolute maximum temperature (°C) 18.5 24.4 27.2 31.5 30 32.6 37.9 35.3 36.9 28.4 25.7 17.8
Average daytime temperature (°C) 10.1 12.9 14.1 22.5 23.2 27.6 32.7 31.1 27 21.5 13.7 10.7
Average temperature (°C) 5.4 7 7.5 15 16.6 21 25.9 24.5 21 15.3 7.6 5.5
Average night temperature (°C) 1.6 2.2 2.2 9 10.7 15.2 20.6 19.5 16.3 10.3 2.9 1.7
Absolute minimum temperature (°C) -3.7 -9.1 -5.2 0.2 5.8 10 17.5 15.3 9.7 5.3 -6.2 -4.4

Waterloo monthly weather indicators

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight maximum duration (h) 10.2 11.3 12.6 13.8 14.7 14.9 14.8 14.2 13 11.8 10.6 9.7
Daylight mean duration (h) 9.8 10.8 12 13.2 14.3 14.8 14.6 13.7 12.5 11.2 10.1 9.5
Daylight minimum duration (h) 9.5 10.3 11.3 12.6 13.8 14.7 14.2 13.1 11.8 10.6 9.7 9.5
Sunshine mean duration (h) 6.7 7.2 8.2 10.1 10.2 11.8 12 10.8 9.9 8.8 8.4 6.8
Precipitation (mm) 62 70 61 93 39 92 82 39 89 20 74 125
Sunny days 13 16 16 17 18 13 13 14 18 20 24 15
Rainy days 17 12 15 13 13 17 18 17 12 11 6 16
Snow days 1

Waterloo - weather forecast by months

January February March April May June July August September October November December

Best time to visit Waterloo:

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

  • June — 11.8(h)
  • July — 12(h)

The largest precipitation sum in Waterloo is at

  • April — 93(mm)
  • June — 92(mm)
  • September — 89(mm)
  • December — 125(mm)

Weather forecast in the closest to Waterloo admin centers