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
April
Weather in April
Temperature
The shift into April brings an increase in the average high-temperature, moving from a cold 38.8°F (3.8°C) in March to a cool 50°F (10°C). In April, Clarkson reports a consistent average low-temperature of 37.6°F (3.1°C) during the nights.Humidity
In Clarkson, the average relative humidity in April is 78%.Rainfall
In Clarkson, in April, it is raining for 16.1 days, with typically 2.2" (56mm) of accumulated precipitation. In Clarkson, during the entire year, the rain falls for 163.5 days and collects up to 24.61" (625mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Clarkson, New York, in April, snow falls for 3.4 days, with typically accumulated 1.3" (33mm) of snow. In Clarkson, New York, during the entire year, snow falls for 67.2 days and aggregates up to 21.97" (558mm) of snow.Daylight
The average length of the day in April is 13h and 26min.On the first day of the month, sunrise is at 6:52 am and sunset at 7:38 pm. On the last day of April, sunrise is at 6:05 am and sunset at 8:12 pm EDT.
Sunshine
In April, the average sunshine is 7.7h.UV index
The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In April, the UV index of 3 transforms into the following advice:
Ensure safety - Sun damage prevention is strongly urged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Stay sun-safe with clothing that is both closely woven and worn loosely. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
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 Clarkson have in April?
What time are sunrise and sunset in April?
How long on average sun shines in April?
What is the UV index reading in April?
Average temperature in April
Clarkson, NY
- Average high temperature in April: 50°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in April: 37.6°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in April
Clarkson, NY
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Clarkson, NY
- Average wind speed in April: 10.7mph
The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in April
Clarkson, NY
- Average humidity in April: 78%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are August and September (76%).
Average rainfall in April
Clarkson, NY
- Average rainfall in April: 2.2"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days in April
Clarkson, NY
- Average rainfall days in April: 16.1 days
The months with the highest number of rainy days are August and October (17.3 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in April
Clarkson, NY
- Average snowfall in April: 1.3"
The month with the highest snowfall is February (5.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Clarkson, NY
- Average snowfall days in April: 3.4 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Clarkson, NY
- 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 0min).
- Average sunshine in April: 7h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and February (Average sunshine: 2h and 42min).
Average sunshine days in April
Clarkson, NY
- Average sunshine days in April: 10.3 days
The month with the most sunshine days is September (13.4 days).
The month with the least sunshine days is January (6.9 days).
Average UV index in April
Clarkson, 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
Clarkson, NY
- Average cloud cover in April: 50
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in April
Clarkson, NY
- 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).