Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
The start of August marks an average high-temperature of a still moderately hot 77.4°F (25.2°C), hardly distinguishable from the conditions in July. During the month of August, the nighttime temperature falls to an average of 59.5°F (15.3°C).Humidity
In August, the average relative humidity is 83%.Rainfall
In Waterloo, in August, it is raining for 13.8 days, with typically 2.13" (54mm) of accumulated precipitation. Throughout the year, in Waterloo, there are 132.3 rainfall days, and 21.38" (543mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In August, the average length of the day in Waterloo, Wisconsin, is 13h and 54min.On the first day of August in Waterloo, sunrise is at 5:47 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 7:32 pm CDT.
Sunshine
The average sunshine in August in Waterloo is 9.7h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 5 in August translates into the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Waterloo in August?
What is the average humidity in August in Waterloo?
How many days does it rain in August in Waterloo?
When it does not snow in Waterloo?
What is the average length of the day in August in Waterloo?
When is the sunrise / sunset in August in Waterloo?
How many hours of sunshine does Waterloo have in August?
When is the highest UV index in Waterloo?
How high is the UV index in August in Waterloo?
Average temperature in August
Waterloo, WI
- Average high temperature in August: 77.4°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (23.7°F).
- Average low temperature in August: 59.5°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (11.1°F).
Average pressure in August
Waterloo, WI
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Waterloo, WI
- Average wind speed in August: 6.6mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in August
Waterloo, WI
- Average humidity in August: 83%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in August
Waterloo, WI
- Average rainfall in August: 2.13"
The wettest month (with the highest rainfall) is June (2.87").
The driest month (with the least rainfall) is December (0.87").
Average rainfall days in August
Waterloo, WI
- Average rainfall days in August: 13.8 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in August
Waterloo, WI
- Average snowfall in August: 0"
The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Waterloo, WI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Waterloo, WI
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in August: 9h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in August
Waterloo, WI
- Average sunshine days in August: 13.3 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in August
Waterloo, WI
- Average UV index in August: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in August
Waterloo, WI
- Average cloud cover in August: 35
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in August
Waterloo, WI
- Average visibility in August: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Waterloo, Wisconsin, USA
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