June weather forecastRoyal, IA
June
Weather in June
The first month of the summer, June, is a warm month in Royal, Iowa, with an average temperature varying between 77.4°F (25.2°C) and 61.2°F (16.2°C).Temperature
An increase in the average high-temperature marks June, moving from May's refreshing 67.8°F (19.9°C) to a moderately hot 77.4°F (25.2°C). During June, Royal's temperature averages to a refreshing 61.2°F (16.2°C) at night.Humidity
The average relative humidity in June is 77%.Rainfall
June is the month with the most rainfall. Rain falls for 15.4 days and accumulates 2.44" (62mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
With an average of 15h and 18min of daylight, June has the longest days of the year.On the first day of June, sunrise is at 5:44 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 9:04 pm CDT.
Sunshine
The average sunshine in June is 9.7h.UV index
The months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: A typical high UV index of 6 in June suggests the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Royal, IA
- Average high temperature in June: 77.4°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 June: 61.2°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 June
Royal, IA
- Average pressure in June: 29.87"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 June
Royal, IA
- Average wind speed in June: 8.7mph
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 June
Royal, IA
- Average humidity in June: 77%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (68%).
Average rainfall in June
Royal, IA
- Average rainfall in June: 2.44"
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 June
Royal, IA
- Average rainfall days in June: 15.4 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 June
Royal, IA
- Average snowfall in June: 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 June
Royal, IA
- Average snowfall days in June: 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 June /
Average sunshine in June
Royal, IA
- Average daylight in June: 15h and 18min
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 June: 9h and 42min
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 June
Royal, IA
- Average sunshine days in June: 10.8 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 June
Royal, IA
- Average UV index in June: 6
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 June
Royal, IA
- Average cloud cover in June: 36
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 June
Royal, IA
- Average visibility in June: 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).
