Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
With the onset of April, Royal's weather sees a temperature rise, transitioning from a wintry 42.4°F (5.8°C) in March to a moderate 55.6°F (13.1°C). Throughout April, the temperature falls to an average low of 39.7°F (4.3°C).Humidity
In Royal, the average relative humidity in April is 69%.Rainfall
In Royal, Iowa, in April, it is raining for 13.3 days, with typically 1.61" (41mm) of accumulated precipitation. In Royal, Iowa, during the entire year, the rain falls for 112.3 days and collects up to 15.31" (389mm) of precipitation.Snowfall
Months with snowfall in Royal are January through May, October through December. In April, in Royal, it is snowing for 2.3 days. Throughout April, 0.79" (20mm) of snow is accumulated. Throughout the year, there are 45.5 snowfall days, and 11.14" (283mm) of snow is accumulated.Daylight
In Royal, the average length of the day in April is 13h and 26min.On the first day of April in Royal, sunrise is at 7:01 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:21 pm CDT.
Sunshine
The average sunshine in April is 7.9h.UV index
In Royal, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 3 during April, leads to the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
What is the usual temperature for Royal in April?
What is the average humidity in April in Royal?
How much does it rain in Royal in April?
How many days does it snow in April in Royal?
What is the average length of the day in April in Royal?
When is the sunrise / sunset in April in Royal?
How many hours of sunshine does Royal have in April?
What is the UV index reading in April in Royal?
Average temperature in April
Royal, IA
- Average high temperature in April: 55.6°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 April: 39.7°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 April
Royal, IA
- Average pressure in April: 29.93"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 April
Royal, IA
- Average wind speed in April: 11.1mph
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 April
Royal, IA
- Average humidity in April: 69%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (68%).
Average rainfall in April
Royal, IA
- Average rainfall in April: 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 April
Royal, IA
- Average rainfall days in April: 13.3 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 April
Royal, IA
- Average snowfall in April: 0.79"
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 April
Royal, IA
- Average snowfall days in April: 2.3 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 April /
Average sunshine in April
Royal, IA
- Average daylight in April: 13h and 2min
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 April: 7h and 5min
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 April
Royal, IA
- Average sunshine days in April: 13.7 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 April
Royal, IA
- Average UV index in April: 3
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 April
Royal, IA
- Average cloud cover in April: 45
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 April
Royal, IA
- Average visibility in April: 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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