Best year time to visit Waterloo

General weather information about Waterloo

Average annual temperature is 10.2 °C

Absolute maximum temperature: 35.8 °C

Absolute minimum temperature: -26.1 °C

Number of sunny days: 194 days

Number of rainy days: 144 days

Number of snow days: 27 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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	7.8	10.0	19.6	25.7	31.8	32.9	33.1	35.8	33.7	28.4	18.0	12.6
Average daytime temperature (°C)	1.1	2.7	6.0	14.8	22.6	27.9	28.5	27.3	24.3	15.7	8.2	5.4
Average temperature (°C)	-2.6	-2.5	0.7	8.6	15.4	21.1	22.9	21.8	19.1	11.6	3.5	1.8
Average night temperature (°C)	-5.1	-6.7	-3.8	3.3	9.3	14.9	17.6	17.3	15.1	7.9	-0.1	-0.8
Absolute minimum temperature (°C)	-26.1	-23.7	-14.9	-3.3	0.0	6.8	12.8	9.5	8.0	-2.9	-12.3	-7.8

Waterloo monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	9.0	11.0	12.0	14.0	15.0	15.0	15.0	14.0	13.0	11.0	10.0	9.0
Daylight mean duration (h)	9.4	10.5	11.9	13.4	14.7	15.3	15.0	13.9	12.5	11.0	9.7	9.0
Daylight minimum duration (h)	9.0	9.0	11.0	12.0	14.0	15.0	14.0	13.0	11.0	10.0	9.0	8.0
Sunshine mean duration (h)	3.5	6.7	7.0	8.2	10.8	12.2	12.6	11.3	9.0	7.0	6.7	4.2
Precipitation (mm)	50	74	84	113	46	53	80	105	91	89	34	52
Sunny days	12	16	13	17	20	21	15	16	14	13	22	15
Rainy days	12	8	9	13	11	9	16	15	16	16	6	13
Snow days	7	4	9	0	0	0	0	0	0	2	2	3

Waterloo - weather forecast by months

Waterloo weather in january Waterloo weather in february Waterloo weather in march Waterloo weather in april Waterloo weather in may Waterloo weather in june Waterloo weather in july Waterloo weather in august Waterloo weather in september Waterloo weather in october Waterloo weather in november Waterloo weather in december

Best time to visit Waterloo:

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

May — 10.8(h)
June — 12.2(h)
July — 12.6(h)
August — 11.3(h)

Months with the longest average daylight duration in Waterloo:

June — 15.3(h)

The largest precipitation sum in Waterloo is at

April — 113(mm)

August — 105(mm)

Weather forecast in the closest to Waterloo admin centers