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
Royal records an average high-temperature of a still warm 78.3°F (25.7°C) as August arrives, nearly mirroring the previous month's climate. Royal experiences a consistent average temperature of 59.5°F (15.3°C) throughout the nights in August.Humidity
In August, the average relative humidity is 79%.Rainfall
In Royal, during August, the rain falls for 12.6 days and regularly aggregates up to 1.61" (41mm) of precipitation. In Royal, during the entire year, the rain falls for 112.3 days and collects up to 15.31" (389mm) of precipitation.Snowfall
In Royal, snow does not fall in June through September.Daylight
In Royal, the average length of the day in August is 13h and 53min.On the first day of the month, sunrise is at 6:12 am and sunset at 8:42 pm. On the last day of August, sunrise is at 6:45 am and sunset at 7:57 pm CDT.
Sunshine
In August, the average sunshine is 9.6h.UV index
The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In August, a regular UV index of 5 translates into these guidelines:
Be vigilant - Preventing sunburn is recommended. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in August?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
How many hours of daylight does Royal have in August?
What time are sunrise and sunset in August?
How many hours of sunshine does Royal have in August?
What is the UV index intensity in August?
Average temperature in August
Royal, IA
- Average high temperature in August: 78.3°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.8°F).
- Average low temperature in August: 59.5°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure in August
Royal, IA
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in August
Royal, IA
- Average wind speed in August: 7.8mph
The windiest months (with the highest average wind speed) are January and April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in August
Royal, IA
- Average humidity in August: 79%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (68%).
Average rainfall in August
Royal, IA
- Average rainfall in August: 1.61"
The wettest month (with the highest rainfall) is June (2.44").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in August
Royal, IA
- Average rainfall days in August: 12.6 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in August
Royal, IA
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Royal, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Royal, IA
- 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 6min).
- Average sunshine in August: 9h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in August
Royal, IA
- Average sunshine days in August: 15.3 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in August
Royal, IA
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in August
Royal, IA
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in August
Royal, IA
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Royal, Iowa, USA
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