April weather forecastWilliston, NY
April
Weather in April
April is a cool spring month in Williston, New York, with temperature in the range of an average high of 52.7°F (11.5°C) and an average low of 36°F (2.2°C).Temperature
In April, the meteorological conditions change with the average high-temperature moving from a wintry 40.6°F (4.8°C) in March to a fresh 52.7°F (11.5°C). Williston records a steady low-temperature average of 36°F (2.2°C) during April.Humidity
In Williston, the average relative humidity in April is 78%.Rainfall
In Williston, in April, it is raining for 15.9 days, with typically 2.13" (54mm) of accumulated precipitation. Throughout the year, there are 161.8 rainfall days, and 21.93" (557mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Williston, during April, snow falls for 4.8 days and regularly aggregates up to 2.09" (53mm) of snow. In Williston, during the entire year, snow falls for 78.6 days and aggregates up to 25.24" (641mm) of snow.Daylight
In April, the average length of the day is 13h and 25min.On the first day of April, sunrise is at 6:54 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:14 pm EDT.
Sunshine
In Williston, the average sunshine in April is 7.1h.UV index
In Williston, 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: The UV index of 3 during April leads to these advisories:
Undertake precautions - Obligation exists to protect against skin and eye damage. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Williston, NY
- Average high temperature in April: 52.7°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in April: 36°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in April
Williston, NY
- Average pressure in April: 29.97"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Williston, NY
- Average wind speed in April: 8.9mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).
Average humidity in April
Williston, NY
- Average humidity in April: 78%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are May, July and August (77%).
Average rainfall in April
Williston, NY
- Average rainfall in April: 2.13"
The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is September (1.34").
Average rainfall days in April
Williston, NY
- Average rainfall days in April: 15.9 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in April
Williston, NY
- Average snowfall in April: 2.09"
The month with the highest snowfall is February (6.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Williston, NY
- Average snowfall days in April: 4.8 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Williston, NY
- Average daylight in April: 13h and 24min
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 6min).
- Average sunshine in April: 7h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in April
Williston, NY
- Average sunshine days in April: 9.8 days
The month with the most sunshine days is June (13.4 days).
The month with the least sunshine days is February (6.7 days).
Average UV index in April
Williston, 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
Williston, NY
- Average cloud cover in April: 53
The month with the most cloud cover is January (Cloud cover 78).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in April
Williston, NY
- Average visibility in April: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
