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 sea temperature 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 onset of April brings a rise in the average high-temperature, elevating from a wintry 41.5°F (5.3°C) in March to a fresh 51.6°F (10.9°C). During April, Rocky River records a consistent average nighttime temperature of 39.9°F (4.4°C).Humidity
In Rocky River, Ohio, the average relative humidity in April is 78%.Rainfall
In Rocky River, in April, during 17.3 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. In Rocky River, during the entire year, the rain falls for 172.7 days and collects up to 33.27" (845mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows in Rocky River, Ohio. During 2.8 snowfall days, in April, Rocky River aggregates 1.26" (32mm) of snow. In Rocky River, during the entire year, snow falls for 59.9 days and aggregates up to 17.91" (455mm) of snow.Ocean temperature
In Rocky River, Ohio, the average seawater temperature in April is 40.6°F (4.8°C).Note: Regarding swimming, this is extremely cold, hazardous, and can lead to death. Hypothermia sets in rapidly without the protection of insulating waterproof gear.
Daylight
The average length of the day in April in Rocky River is 13h and 22min.On the first day of the month, sunrise is at 7:08 am and sunset at 7:53 pm. On the last day of April, sunrise is at 6:24 am and sunset at 8:24 pm EDT.
Sunshine
In Rocky River, the average sunshine in April is 7.4h.UV index
In Rocky River, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 3 during April leads to these instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
What are the temperatures in Rocky River in April?
What is the average humidity in April in Rocky River?
How many days does it rain in April in Rocky River?
What is the last month it snows in Rocky River?
What is the ocean temperature in April in Rocky River?
How many hours of daylight does Rocky River have in April?
What time are sunrise and sunset in April in Rocky River?
How long on average sun shines in April in Rocky River?
What is the UV index reading in April in Rocky River?
Average temperature in April
Rocky River, OH
- Average high temperature in April: 51.6°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in April: 39.9°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in April
Rocky River, OH
- Average pressure in April: 29.97"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Rocky River, OH
- Average wind speed in April: 9.8mph
The windiest month (with the highest average wind speed) is January (11.6mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in April
Rocky River, OH
- Average humidity in April: 78%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is August (74%).
Average rainfall in April
Rocky River, OH
- Average rainfall in April: 3.07"
The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is February (2.17").
Average rainfall days in April
Rocky River, OH
- Average rainfall days in April: 17.3 days
The month with the highest number of rainy days is April (17.3 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in April
Rocky River, OH
- Average snowfall in April: 1.26"
The month with the highest snowfall is February (4.84").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Rocky River, OH
- Average snowfall days in April: 2.8 days
The month with the highest number of snowfall days is January (16.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in April
Rocky River, OH
- Average sea temperature in April: 40.6°F
The best month for swimming (with the highest average sea temperature) is August (76.3°F).
The coldest month (with the lowest average sea temperature) is February (33.2°F).
Average daylight in April /
Average sunshine in April
Rocky River, OH
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 7h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in April
Rocky River, OH
- Average sunshine days in April: 10.1 days
The month with the most sunshine days is October (12 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in April
Rocky River, OH
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in April
Rocky River, OH
- Average cloud cover in April: 48
The month with the most cloud cover is January (Cloud cover 73).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in April
Rocky River, OH
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Rocky River, Ohio, USA
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