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
Williamstown's transition into April is marked by a rise in the average high-temperature, advancing from a wintry 34.3°F (1.3°C) in March to a chilly 48.2°F (9°C). Throughout the nights in April, Williamstown experiences an average low-temperature of 31.5°F (-0.3°C).Humidity
In Williamstown, the average relative humidity in April is 78%.Rainfall
In Williamstown, Vermont, in April, during 16.3 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. In Williamstown, during the entire year, the rain falls for 166.6 days and collects up to 32.01" (813mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Williamstown, in April, during 8.7 snowfall days, 5.16" (131mm) of snow is typically accumulated. In Williamstown, Vermont, during the entire year, snow falls for 107.7 days and aggregates up to 58.82" (1494mm) of snow.Daylight
The average length of the day in April is 13h and 29min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:17 pm. On the last day of April, sunrise is at 5:41 am and sunset at 7:52 pm EDT.
Sunshine
The average sunshine in April is 6.4h.UV index
The average daily maximum UV index in April is 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: An average maximum UV index of 2 in April leads to these recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Around midday, solar radiation is most harmful; hence, exposure should be limited. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Williamstown in April?
What is the average humidity in April?
How many days does it rain in April in Williamstown?
How much does it snow in Williamstown in April?
How many hours of daylight does Williamstown have in April?
What time are sunrise and sunset in April?
How many hours of sunshine does Williamstown have in April?
What is the UV index reading in April?
Average temperature in April
Williamstown, VT
- Average high temperature in April: 48.2°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (23.2°F).
- Average low temperature in April: 31.5°F
The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in April
Williamstown, VT
- 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
Williamstown, VT
- Average wind speed in April: 7.3mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in April
Williamstown, VT
- Average humidity in April: 78%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (76%).
Average rainfall in April
Williamstown, VT
- Average rainfall in April: 2.91"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is September (2.09").
Average rainfall days in April
Williamstown, VT
- Average rainfall days in April: 16.3 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in April
Williamstown, VT
- Average snowfall in April: 5.16"
The month with the highest snowfall is February (13.31").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Williamstown, VT
- Average snowfall days in April: 8.7 days
The month with the highest number of snowfall days is January (22.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Williamstown, VT
- 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: 8h and 54min).
- Average sunshine in April: 6h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January and February (Average sunshine: 2h and 42min).
Average sunshine days in April
Williamstown, VT
- Average sunshine days in April: 8.6 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is February (5.5 days).
Average UV index in April
Williamstown, VT
- Average UV index in April: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in April
Williamstown, VT
- Average cloud cover in April: 59
The months with the most cloud cover are January and February (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in April
Williamstown, VT
- Average visibility in April: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March and December (4mi).
Williamstown, Vermont, USA
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