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
April's onset witnesses a shift in the average high-temperature, moving from a wintry 41.5°F (5.3°C) in March to a cool 51.6°F (10.9°C). Rocky River reports an average nighttime low-temperature of 39.9°F (4.4°C) in April.Humidity
In Rocky River, the average relative humidity in April is 78%.Rainfall
In April, the rain falls for 17.3 days. Throughout April, 3.07" (78mm) of precipitation is 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. During 2.8 snowfall days, in April, Rocky River aggregates 1.26" (32mm) of snow. Throughout the year, there are 59.9 snowfall days, and 17.91" (455mm) of snow is accumulated.Ocean temperature
In April, the average ocean temperature is 40.6°F (4.8°C).Note: In swimming exercises, this state is seen as life-threatening and poses serious dangers. The painful sensation of the cold water induces immediate hyperventilation. A specialized swimsuit is required to limit thermal damage.
Daylight
In Rocky River, the average length of the day in April is 13h and 22min.On the first day of April, sunrise is at 7:08 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 8:24 pm EDT.
Sunshine
In Rocky River, Ohio, the average sunshine in April is 7.4h.UV index
The average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: During April, 3 as the daily maximum UV index converts into the following advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Rocky River in April?
What is the average humidity in April?
How many days does it rain in April?
What is the last month it snows?
How cold is the water in April?
What is the average length of the day in April?
When is the sunrise / sunset in April?
How many hours of sunshine does Rocky River have in April?
What is the UV index reading in April?
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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