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
The transition from March to April brings a temperature rise, with average high-temperatures increasing from an enjoyable 62.1°F (16.7°C) to a pleasant 71.2°F (21.8°C). The average temperature in Rock Island during April nights dips to a fresh 50.7°F (10.4°C).Humidity
The average relative humidity in April is 75%.Rainfall
In Rock Island, during April, the rain falls for 14.7 days and regularly aggregates up to 3.74" (95mm) of precipitation. Throughout the year, in Rock Island, Oklahoma, there are 149.7 rainfall days, and 35.08" (891mm) of precipitation is accumulated.Snowfall
In Rock Island, Oklahoma, snow does not fall in April through October.Daylight
In Rock Island, the average length of the day in April is 13h and 6min.On the first day of April in Rock Island, sunrise is at 7:03 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 8:03 pm CDT.
Sunshine
The average sunshine in April in Rock Island is 8.4h.UV index
In April, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 5 during April translates into these guidelines:
Act with care - Obligation to protect against skin and eye damage is highlighted. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the usual temperature for Rock Island in April?
What is the average humidity in April in Rock Island?
How much does it rain in Rock Island in April?
When it does not snow in Rock Island?
Does it snow in Rock Island in April?
How many hours of daylight does Rock Island have in April?
When is the sunrise / sunset in April in Rock Island?
How many hours of sunshine does Rock Island have in April?
How high is the UV index in April in Rock Island?
Average temperature in April
Rock Island, OK
- Average high temperature in April: 71.2°F
The warmest month (with the highest average high temperature) is July (93.4°F).
The month with the lowest average high temperature is January (48°F).
- Average low temperature in April: 50.7°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).
Average pressure in April
Rock Island, OK
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Rock Island, OK
- Average wind speed in April: 7.8mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in April
Rock Island, OK
- Average humidity in April: 75%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is August (69%).
Average rainfall in April
Rock Island, OK
- Average rainfall in April: 3.74"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in April
Rock Island, OK
- Average rainfall days in April: 14.7 days
The month with the highest number of rainy days is March (15.4 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in April
Rock Island, OK
- Average snowfall in April: 0"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Rock Island, OK
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Rock Island, OK
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in April: 8h and 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in April
Rock Island, OK
- Average sunshine days in April: 13.7 days
The months with the most sunshine days are November and December (19.3 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in April
Rock Island, OK
- Average UV index in April: 5
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in April
Rock Island, OK
- Average cloud cover in April: 39
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in April
Rock Island, OK
- 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).
Rock Island, Oklahoma, USA
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