April weather forecast and climate
Williamsville, NY

Weather in April

April is a cool spring month in Williamsville, New York, with average temperature fluctuating between 36.5°F (2.5°C) and 52.7°F (11.5°C).

Temperature

In Williamsville, New York, the average high-temperature rises, from a wintry 40.6°F (4.8°C) in March, to a cool 52.7°F (11.5°C). In Williamsville, in April, the average low-temperature is 36.5°F (2.5°C).

Humidity

In April, the average relative humidity in Williamsville is 77%.

Rainfall

In Williamsville, during April, the rain falls for 13.8 days and regularly aggregates up to 1.38" (35mm) of precipitation. In Williamsville, during the entire year, the rain falls for 139.2 days and collects up to 14.84" (377mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Williamsville, snow falls for 3.5 days, with typically accumulated 0.87" (22mm) of snow. In Williamsville, New York, during the entire year, snow falls for 62.1 days, and aggregates up to 12.68" (322mm) of snow.

Daylight

In April, the average length of the day in Williamsville is 13.4h.

Sunshine

In April, the average sunshine in Williamsville is 7.2h.

UV index

The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 3 in April interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
[Resources]

FAQ

What is the temperature in April in Williamsville?

In Williamsville, New York, in April, the average high-temperature is 52.7°F (11.5°C), and the average low-temperature is 36.5°F (2.5°C).

What is the average humidity in April in Williamsville?

In April, the average relative humidity in Williamsville, New York, is 77%.

How many days does it rain in April in Williamsville?

In Williamsville, New York, during April, the rain falls for 13.8 days and regularly aggregates up to 1.38" (35mm) of precipitation.

How many days does it snow in April in Williamsville?

In Williamsville, New York, during April, snow falls for 3.5 days and regularly aggregates up to 0.87" (22mm) of snow.

How many hours of daylight does Williamsville have in April?

In Williamsville, the average length of the day in April is 13.4h.

How long on average sun shines in April in Williamsville?

In April, the average sunshine is 7.2h.

How high is the UV index in April in Williamsville?

In April, the average daily maximum UV index in Williamsville is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in April
Williamsville, NY

Average temperature in April - Williamsville, NY
  • Average high temperature in April: 52.7°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in April: 36.5°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

[Resources]

Average pressure in April
Williamsville, NY

Average pressure in April - Williamsville, NY
  • Average pressure in April: 29.97"

The month with the highest atmospheric pressure is November (30.09").
The month with the lowest atmospheric pressure is June (29.93").

[Resources]

Average wind speed in April
Williamsville, NY

Average wind speed in April - Williamsville, NY
  • Average wind speed in April: 9mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

[Resources]

Average humidity in April
Williamsville, NY

Average humidity in April - Williamsville, NY
  • Average humidity in April: 77%

Months with the highest relative humidity are January and February (86%).
Months with the lowest relative humidity are July and August (75%).

[Resources]

Average rainfall in April
Williamsville, NY

Average rainfall in April - Williamsville, NY
  • Average rainfall in April: 1.38"

The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is September (0.91").

[Resources]

Average rainfall days in April
Williamsville, NY

Average rainfall days in April - Williamsville, NY
  • Average rainfall days in April: 13.8 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (6.4 days).

[Resources]

Average snowfall in April
Williamsville, NY

Average snowfall in April - Williamsville, NY
  • Average snowfall in April: 0.87"

Months with the highest snowfall are January and February (2.95").
Months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in April
Williamsville, NY

Average snowfall days in April - Williamsville, NY
  • Average snowfall days in April: 3.5 days

The month with the highest number of snowfall days is January (15.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight in April /
Average sunshine in April
Williamsville, NY

Average daylight in April / Average sunshine in April - Williamsville, NY
  • Average daylight in April: 13.4h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in April: 7.2h

Months with the most sunshine are July and August (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 2.4h).

[Resources]

Average sunshine days in April
Williamsville, NY

Average sunshine days in April - Williamsville, NY
  • Average sunshine days in April: 12.6 days

The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is February (10.2 days).

[Resources]

Average UV index in April
Williamsville, NY

Average UV index in April - Williamsville, NY
  • Average UV index in April: 3

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, February and December (UV index 1).

[Resources]

Average cloud cover in April
Williamsville, NY

Average cloud cover in April - Williamsville, NY
  • Average cloud cover in April: 52

The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 29).

[Resources]

Average visibility in April
Williamsville, NY

Average visibility in April - Williamsville, NY
  • Average visibility in April: 6mi

Months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February and March (5mi).

[Resources]