April weather forecast
Alton, NY

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Weather in April

April is a chilly spring month in Alton, New York, with temperature in the range of an average high of 49.6°F (9.8°C) and an average low of 38.1°F (3.4°C).

Temperature

Alton's transition into April is marked by a temperature shift, moving from an icy 38.8°F (3.8°C) in March to a chilly 49.6°F (9.8°C). An average nighttime temperature of 38.1°F (3.4°C) is witnessed throughout April.

Humidity

In April, the average relative humidity in Alton, New York, is 78%.

Rainfall

In Alton, in April, it is raining for 17.1 days, with typically 2.91" (74mm) of accumulated precipitation. In Alton, New York, during the entire year, the rain falls for 171.8 days and collects up to 32.76" (832mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Alton. In Alton, during April, snow falls for 3.3 days and regularly aggregates up to 1.14" (29mm) of snow. Throughout the year, there are 67.1 snowfall days, and 22.99" (584mm) of snow is accumulated.

Daylight

In April, the average length of the day in Alton is 13h and 26min.
On the first day of the month, sunrise is at 6:48 am and sunset at 7:34 pm. On the last day of April, sunrise is at 6:01 am and sunset at 8:08 pm EDT.

Sunshine

In Alton, New York, the average sunshine in April is 7.7h.

UV index

In Alton, New York, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: In April, an average UV index of 3 transforms into the following instructions:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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Frequently asked questions

What is the temperature in April in Alton?

The high-temperature, in April, in Alton, records 49.6°F (9.8°C), while the low-temperature is 38.1°F (3.4°C).

What is the average humidity in April in Alton?

The average relative humidity in April in Alton, New York, is 78%.

How much does it rain in Alton in April?

In April, in Alton, the rain falls for 17.1 days. Throughout April, 2.91" (74mm) of precipitation is accumulated.

How much does it snow in Alton in April?

In Alton, during April, snow falls for 3.3 days and regularly aggregates up to 1.14" (29mm) of snow.

What is the average length of the day in April in Alton?

In Alton, the average day length in April is 13h and 26min.

When are sunrise and sunset in April in Alton?

On the first day of April in Alton, sunrise is at 6:48 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:08 pm EDT.

How many hours of sunshine does Alton have in April?

In Alton, New York, the average sunshine duration in April is 7.7h.

What is the UV index reading in April in Alton?

In Alton, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Alton, NY

Average temperature in April - Alton, NY
  • Average high temperature in April: 49.6°F

The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in April: 38.1°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (21°F).

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Average pressure in April
Alton, NY

Average pressure in April - Alton, NY
  • Average pressure in April: 29.96"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in April
Alton, NY

Average wind speed in April - Alton, NY
  • Average wind speed in April: 11.5mph

The windiest month (with the highest average wind speed) is January (13.1mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).

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Average humidity in April
Alton, NY

Average humidity in April - Alton, NY
  • Average humidity in April: 78%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is September (76%).

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Average rainfall in April
Alton, NY

Average rainfall in April - Alton, NY
  • Average rainfall in April: 2.91"

The wettest month (with the highest rainfall) is October (3.62").
The driest month (with the least rainfall) is January (2.05").

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Average rainfall days in April
Alton, NY

Average rainfall days in April - Alton, NY
  • Average rainfall days in April: 17.1 days

The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is February (7.9 days).

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Average snowfall in April
Alton, NY

Average snowfall in April - Alton, NY
  • Average snowfall in April: 1.14"

The month with the highest snowfall is February (6.26").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in April
Alton, NY

Average snowfall days in April - Alton, NY
  • Average snowfall days in April: 3.3 days

The month with the highest number of snowfall days is January (16.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in April / Average sunshine in April - Alton, NY
  • Average daylight in April: 13h and 2min

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 0min).

  • Average sunshine in April: 7h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).

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Average sunshine days in April
Alton, NY

Average sunshine days in April - Alton, NY
  • Average sunshine days in April: 9.3 days

The month with the most sunshine days is May (12.7 days).
The month with the least sunshine days is February (6.3 days).

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Average UV index in April
Alton, NY

Average UV index in April - Alton, 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).

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Average cloud cover in April
Alton, NY

Average cloud cover in April - Alton, NY
  • Average cloud cover in April: 50

The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in April
Alton, NY

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

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

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Alton, New York, USA

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