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
April shows a rise in the average high-temperature, moving from March's chilly 48.7°F (9.3°C) to an enjoyable 61.2°F (16.2°C). An average nighttime temperature of 44.1°F (6.7°C) is observed during April.Humidity
The months with the lowest humidity are April, July and August, with an average relative humidity of 72%.Rainfall
In Roslyn, during April, the rain falls for 11.9 days and regularly aggregates up to 0.98" (25mm) of precipitation. In Roslyn, during the entire year, the rain falls for 122.4 days and collects up to 12.68" (322mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows. During 0.1 snowfall days, in April, Roslyn aggregates 0.04" (1mm) of snow. In Roslyn, during the entire year, snow falls for 16.3 days and aggregates up to 4.72" (120mm) of snow.Daylight
The average length of the day in April is 13h and 18min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:25 pm. On the last day of April, in Roslyn, sunrise is at 6:00 am and sunset at 7:54 pm EDT.
Sunshine
The average sunshine in April is 8.4h.UV index
The average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In April, a daily UV index of 4 turns into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
What are April temperatures in Roslyn?
What are the least humid months in Roslyn?
What is the average humidity in April in Roslyn?
How much does it rain in Roslyn in April?
What is the last month it snows in Roslyn?
How many hours of daylight does Roslyn have in April?
When is the sunrise / sunset in April in Roslyn?
How long on average sun shines in April in Roslyn?
What is the UV index intensity in April in Roslyn?
Average temperature in April
Roslyn, PA
- Average high temperature in April: 61.2°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in April: 44.1°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in April
Roslyn, PA
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Roslyn, PA
- Average wind speed in April: 8.3mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in April
Roslyn, PA
- Average humidity in April: 72%
The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April, July and August (72%).
Average rainfall in April
Roslyn, PA
- Average rainfall in April: 0.98"
The wettest month (with the highest rainfall) is August (1.54").
The driest month (with the least rainfall) is September (0.75").
Average rainfall days in April
Roslyn, PA
- Average rainfall days in April: 11.9 days
The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is November (6.4 days).
Average snowfall in April
Roslyn, PA
- Average snowfall in April: 0.04"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Roslyn, PA
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is January (5.1 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
Roslyn, PA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in April: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in April
Roslyn, PA
- Average sunshine days in April: 15.4 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (14.4 days).
Average UV index in April
Roslyn, PA
- Average UV index in April: 4
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in April
Roslyn, PA
- Average cloud cover in April: 44
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in April
Roslyn, PA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Roslyn, Pennsylvania, USA
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