April weather forecast
Altona, NY

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Weather in April

April is a cool spring month in Altona, New York, with an average temperature fluctuating between 34°F (1.1°C) and 50°F (10°C).

Temperature

The shift into April brings a noticeable increase in the average high-temperature, soaring from a wintry 35.2°F (1.8°C) in March to a fresh 50°F (10°C). An average temperature of 34°F (1.1°C) is recorded during the nights in April.

Humidity

April and May, with an average relative humidity of 76%, are the least humid months.

Rainfall

In Altona, in April, during 14.5 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, there are 146.4 rainfall days, and 27.36" (695mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Altona. In April, it is snowing for 5.8 days. Throughout April, 3.07" (78mm) of snow is accumulated. In Altona, during the entire year, snow falls for 76.4 days and aggregates up to 37.52" (953mm) of snow.

Daylight

In Altona, the average length of the day in April is 13h and 31min.
On the first day of the month, sunrise is at 6:33 am and sunset at 7:22 pm. On the last day of April, sunrise is at 5:44 am and sunset at 7:59 pm EDT.

Sunshine

The average sunshine in April is 6.8h.

UV index

In April, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 3 in April transforms into the following instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Altona in April?

April temperatures vary between a high-temperature of 50°F (10°C) and a low-temperature of 34°F (1.1°C).

What is the least humid month?

The months with the lowest humidity are April and May, with an average relative humidity of 76%.

What is the average humidity in April?

The average relative humidity in April is 76%.

How much does it rain in April?

In April, in Altona, the rain falls for 14.5 days. Throughout April, 2.32" (59mm) of precipitation is accumulated.

How many days does it snow in April?

In Altona, in April, during 5.8 snowfall days, 3.07" (78mm) of snow is typically accumulated.

How many hours of daylight does Altona have in April?

The average day length in April in Altona is 13h and 31min.

When are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 6:33 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 7:59 pm EDT.

How many hours of sunshine does Altona have in April?

The average sunshine duration in April is 6.8h.

How high is the UV index in April?

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

Average temperature in April - Altona, NY
  • Average high temperature in April: 50°F

The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (23.5°F).

  • Average low temperature in April: 34°F

The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).

Average pressure in April
Altona, NY

Average pressure in April - Altona, NY
  • Average pressure in April: 29.95"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in April
Altona, NY

Average wind speed in April - Altona, NY
  • Average wind speed in April: 8.9mph

The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity in April
Altona, NY

Average humidity in April - Altona, NY
  • Average humidity in April: 76%

The months with the highest relative humidity are January and February (89%).
The months with the lowest relative humidity are April and May (76%).

Average rainfall in April
Altona, NY

Average rainfall in April - Altona, NY
  • Average rainfall in April: 2.32"

The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is January (1.54").

Average rainfall days in April
Altona, NY

Average rainfall days in April - Altona, NY
  • Average rainfall days in April: 14.5 days

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (3.9 days).

Average snowfall in April
Altona, NY

Average snowfall in April - Altona, NY
  • Average snowfall in April: 3.07"

The month with the highest snowfall is February (8.43").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in April
Altona, NY

Average snowfall days in April - Altona, NY
  • Average snowfall days in April: 5.8 days

The month with the highest number of snowfall days is February (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in April / Average sunshine in April - Altona, NY
  • Average daylight in April: 13h and 3min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in April: 6h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).

Average sunshine days in April
Altona, NY

Average sunshine days in April - Altona, NY
  • Average sunshine days in April: 10.8 days

The month with the most sunshine days is November (16 days).
The month with the least sunshine days is June (9.1 days).

Average UV index in April
Altona, NY

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

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in April
Altona, NY

Average cloud cover in April - Altona, NY
  • Average cloud cover in April: 56

The month with the most cloud cover is February (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 33).

Average visibility in April
Altona, NY

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

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (4mi).

Altona, New York, USA

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