August weather forecast
Altona, NY

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Weather in August

August, the last month of the summer in Altona, is also a moderately hot month, with an average temperature varying between 75.7°F (24.3°C) and 58.3°F (14.6°C).

Temperature

As July turns into August, the average high-temperatures rest at a still moderately hot 75.7°F (24.3°C), showing a minor variation from the prior month. In the month of August, the nighttime temperature dips to a steady average of 58.3°F (14.6°C).

Humidity

In Altona, the average relative humidity in August is 80%.

Rainfall

In Altona, in August, during 17 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. Throughout the year, there are 146.4 rainfall days, and 27.36" (695mm) of precipitation is accumulated.

Snowfall

In Altona, snow does not fall in June through September.

Daylight

In August, the average length of the day in Altona is 14h and 1min.
On the first day of August, sunrise is at 5:41 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:32 pm EDT.

Sunshine

With an average of 10.1h of sunshine, August has the most sunshine of the year.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 5 during August translates into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. Around midday, solar radiation is most harmful; hence, exposure should be limited. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in August?

During August, Altona experiences an average high-temperature of 75.7°F (24.3°C) and a low-temperature of 58.3°F (14.6°C).

What is the average humidity in August?

In August, the average relative humidity is 80%.

How many days does it rain in August?

In August, the rain falls for 17 days. Throughout August, 2.91" (74mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall in Altona.

How many hours of daylight does Altona have in August?

In Altona, the average day length in August is 14h and 1min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 5:41 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:32 pm EDT.

What month has the most sunshine?

The month with the most sunshine is August, with an average of 10.1h of sunshine.

How many hours of sunshine does Altona have in August?

The average sunshine duration in August is 10.1h.

When is the highest UV index?

The months with the highest UV index are June through August, with an average maximum UV index of 5.

How high is the UV index in August?

In August, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Altona, NY

Average temperature in August - Altona, NY
  • Average high temperature in August: 75.7°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 August: 58.3°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 August
Altona, NY

Average pressure in August - Altona, NY
  • Average pressure in August: 29.96"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 August
Altona, NY

Average wind speed in August - Altona, NY
  • Average wind speed in August: 6.6mph

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 August
Altona, NY

Average humidity in August - Altona, NY
  • Average humidity in August: 80%

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 August
Altona, NY

Average rainfall in August - Altona, NY
  • Average rainfall in August: 2.91"

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 August
Altona, NY

Average rainfall days in August - Altona, NY
  • Average rainfall days in August: 17 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 August
Altona, NY

Average snowfall in August - Altona, NY
  • Average snowfall in August: 0"

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 August
Altona, NY

Average snowfall days in August - Altona, NY
  • Average snowfall days in August: 0 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 August /
Average sunshine in August
Altona, NY

Average daylight in August / Average sunshine in August - Altona, NY
  • Average daylight in August: 14h and 0min

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 August: 10h and 1min

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 August
Altona, NY

Average sunshine days in August - Altona, NY
  • Average sunshine days in August: 11.8 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 August
Altona, NY

Average UV index in August - Altona, NY
  • Average UV index in August: 5

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 August
Altona, NY

Average cloud cover in August - Altona, NY
  • Average cloud cover in August: 33

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 August
Altona, NY

Average visibility in August - Altona, NY
  • Average visibility in August: 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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