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 start of April signals an increase in the average high-temperature, moving from an icy 37°F (2.8°C) in March to a cool 50.5°F (10.3°C). In April, the temperature drops to an average of 35.4°F (1.9°C) at night.Humidity
April and September, with an average relative humidity of 77%, are the least humid months.Rainfall
In April, the rain falls for 16.3 days. Throughout April, 3.27" (83mm) of precipitation is accumulated. In Black River, during the entire year, the rain falls for 163.9 days and collects up to 33.19" (843mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In April, it is snowing for 5.3 days. Throughout April, 2.05" (52mm) of snow is accumulated. Throughout the year, there are 84.4 snowfall days, and 43.58" (1107mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 29min.On the first day of April, sunrise is at 6:42 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:05 pm EDT.
Sunshine
In April, the average sunshine is 7.1h.UV index
In Black River, New York, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 3 during April translates into the following directions:
Be vigilant - Preventing sunburn is recommended. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Black River in April?
What is the least humid month?
What is the average humidity in April?
How many days does it rain in April?
How much does it snow in April?
How many hours of daylight does Black River have in April?
When is the sunrise / sunset in April in Black River?
How long on average sun shines in April in Black River?
What is the UV index intensity in April?
Average temperature in April
Black River, NY
- Average high temperature in April: 50.5°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in April: 35.4°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in April
Black River, NY
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Black River, NY
- Average wind speed in April: 9.8mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).
Average humidity in April
Black River, NY
- Average humidity in April: 77%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and September (77%).
Average rainfall in April
Black River, NY
- Average rainfall in April: 3.27"
The wettest month (with the highest rainfall) is October (3.54").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in April
Black River, NY
- Average rainfall days in April: 16.3 days
The month with the highest number of rainy days is October (17.7 days).
The month with the least rainy days is February (7 days).
Average snowfall in April
Black River, NY
- Average snowfall in April: 2.05"
The month with the highest snowfall is January (10.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Black River, NY
- Average snowfall days in April: 5.3 days
The month with the highest number of snowfall days is January (19.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Black River, NY
- Average daylight in April: 13h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in April: 7h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 2h and 42min).
Average sunshine days in April
Black River, NY
- Average sunshine days in April: 10 days
The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is February (6.7 days).
Average UV index in April
Black River, NY
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Black River, NY
- Average cloud cover in April: 53
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in April
Black River, NY
- Average visibility in April: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Black River, New York, USA
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