August weather forecast
Royalton, WI

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Weather in August

The last month of the summer, August, is also a moderately hot month in Royalton, Wisconsin, with an average temperature ranging between max 77.4°F (25.2°C) and min 58.8°F (14.9°C).

Temperature

August's weather displays an average high-temperature of a still warm 77.4°F (25.2°C), slightly varied from July's 78.4°F (25.8°C). During August, the nighttime temperature averages of 58.8°F (14.9°C).

Humidity

In Royalton, the average relative humidity in August is 79%.

Rainfall

In Royalton, in August, it is raining for 13.8 days, with typically 1.93" (49mm) of accumulated precipitation. Throughout the year, there are 132 rainfall days, and 25.79" (655mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In Royalton, the average length of the day in August is 13h and 59min.
On the first day of the month, sunrise is at 5:43 am and sunset at 8:20 pm. On the last day of August, sunrise is at 6:17 am and sunset at 7:33 pm CDT.

Sunshine

The average sunshine in August is 9.8h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 5 during August translates into these guidelines:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Royalton in August?

In Royalton, 77.4°F (25.2°C) is the average high-temperature and 58.8°F (14.9°C) is the average low-temperature during August.

What is the average humidity in August in Royalton?

In Royalton, Wisconsin, the average relative humidity in August is 79%.

How many days does it rain in August in Royalton?

In Royalton, Wisconsin, in August, it is raining for 13.8 days, with typically 1.93" (49mm) of accumulated precipitation.

When it does not snow in Royalton?

In Royalton, snow does not fall in June through September.

How many hours of daylight does Royalton have in August?

In August, the average day length in Royalton, Wisconsin, is 13h and 59min.

When are sunrise and sunset in August in Royalton?

In August, on the first day of the month, sunrise is at 5:43 am and sunset at 8:20 pm. On the last day of the month, in Royalton, Wisconsin, sunrise is at 6:17 am and sunset at 7:33 pm CDT.

How long on average sun shines in August in Royalton?

In Royalton, the average sunshine duration in August is 9.8h.

What is the month with the highest UV index in Royalton?

May through August, with an average maximum UV index of 5, are months with the highest UV index.

How high is the UV index in August in Royalton?

The average daily maximum UV index in August in Royalton is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Royalton, WI

Average temperature in August - Royalton, WI
  • Average high temperature in August: 77.4°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (21.9°F).

  • Average low temperature in August: 58.8°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).

Average pressure in August
Royalton, WI

Average pressure in August - Royalton, WI
  • Average pressure in August: 29.96"Hg

The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Royalton, WI

Average wind speed in August - Royalton, WI
  • Average wind speed in August: 7mph

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (7mph).

Average humidity in August
Royalton, WI

Average humidity in August - Royalton, WI
  • Average humidity in August: 79%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).

Average rainfall in August
Royalton, WI

Average rainfall in August - Royalton, WI
  • Average rainfall in August: 1.93"

The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is January (1.18").

Average rainfall days in August
Royalton, WI

Average rainfall days in August - Royalton, WI
  • Average rainfall days in August: 13.8 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is January (4 days).

Average snowfall in August
Royalton, WI

Average snowfall in August - Royalton, WI
  • Average snowfall in August: 0"

The month with the highest snowfall is January (6.06").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Royalton, WI

Average snowfall days in August - Royalton, WI
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (13 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Royalton, WI

Average daylight in August / Average sunshine in August - Royalton, WI
  • Average daylight in August: 14h and 0min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in August
Royalton, WI

Average sunshine days in August - Royalton, WI
  • Average sunshine days in August: 14.2 days

The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is April (11.7 days).

Average UV index in August
Royalton, WI

Average UV index in August - Royalton, 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
Royalton, WI

Average cloud cover in August - Royalton, WI
  • Average cloud cover in August: 34

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in August
Royalton, WI

Average visibility in August - Royalton, WI
  • Average visibility in August: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).

Royalton, Wisconsin, USA

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