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's arrival brings a slight change in high-temperatures, adjusting from a frosty 44.2°F (6.8°C) in March to a fresh 52.9°F (11.6°C). Rockville Centre sustains a near constant temperature throughout April, with nighttime averages of 45.1°F (7.3°C).Humidity
The average relative humidity in April is 74%.Rainfall
In Rockville Centre, in April, it is raining for 14.8 days, with typically 3.11" (79mm) of accumulated precipitation. Throughout the year, there are 159.2 rainfall days, and 37.17" (944mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Rockville Centre. April is the last month it regularly snows in Rockville Centre, New York. During 0.3 snowfall days, in April, Rockville Centre aggregates 0.04" (1mm) of snow. Throughout the year, there are 15.3 snowfall days, and 5.04" (128mm) of snow is accumulated.Daylight
In Rockville Centre, the average length of the day in April is 13h and 19min.On the first day of the month, sunrise is at 6:36 am and sunset at 7:19 pm. On the last day of April, sunrise is at 5:53 am and sunset at 7:49 pm EDT.
Sunshine
In Rockville Centre, the average sunshine in April is 8.6h.UV index
In Rockville Centre, New York, the average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In April, the maximum UV index of 4 suggests these recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
What are the temperatures in Rockville Centre in April?
What is the average humidity in April in Rockville Centre?
How much does it rain in Rockville Centre in April?
What is the last month it snows in Rockville Centre?
What is the average length of the day in April in Rockville Centre?
What time are sunrise and sunset in April in Rockville Centre?
How many hours of sunshine does Rockville Centre have in April?
How high is the UV index in April in Rockville Centre?
Average temperature in April
Rockville Centre, NY
- Average high temperature in April: 52.9°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in April: 45.1°F
The month with the highest average low temperature is August (71.8°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in April
Rockville Centre, NY
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Rockville Centre, NY
- Average wind speed in April: 11.8mph
The windiest month (with the highest average wind speed) is January (13.6mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).
Average humidity in April
Rockville Centre, NY
- Average humidity in April: 74%
The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is November (71%).
Average rainfall in April
Rockville Centre, NY
- Average rainfall in April: 3.11"
The wettest month (with the highest rainfall) is July (4.17").
The driest month (with the least rainfall) is January (2.17").
Average rainfall days in April
Rockville Centre, NY
- Average rainfall days in April: 14.8 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in April
Rockville Centre, NY
- Average snowfall in April: 0.04"
The month with the highest snowfall is March (1.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Rockville Centre, NY
- Average snowfall days in April: 0.3 days
The months with the highest number of snowfall days are January and February (4.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Rockville Centre, NY
- 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 18min).
- Average sunshine in April: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in April
Rockville Centre, NY
- Average sunshine days in April: 14.4 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in April
Rockville Centre, NY
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover in April
Rockville Centre, NY
- Average cloud cover in April: 43
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in April
Rockville Centre, NY
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Rockville Centre, New York, USA
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