August weather forecast
Portland, NY

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Weather in August

August, the last month of the summer in Portland, is another warm month, with an average temperature fluctuating between 63.5°F (17.5°C) and 73.9°F (23.3°C).

Temperature

The advent of August presents an average high-temperature of a still warm 73.9°F (23.3°C), maintaining a close correlation with the preceding month. August in Portland sees the temperature falling to a mean low of 63.5°F (17.5°C).

Humidity

The average relative humidity in August is 79%.

Rainfall

In Portland, New York, in August, it is raining for 17.9 days, with typically 2.91" (74mm) of accumulated precipitation. Throughout the year, there are 176.8 rainfall days, and 33.03" (839mm) of precipitation is accumulated.

Snowfall

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

Daylight

In August, the average length of the day in Portland is 13h and 51min.
On the first day of the month, sunrise is at 6:11 am and sunset at 8:37 pm. On the last day of August, in Portland, sunrise is at 6:42 am and sunset at 7:53 pm EDT.

Sunshine

With an average of 10.5h of sunshine, August has the most sunshine of the year in Portland.

UV index

In August, the average daily maximum UV index in Portland, New York, is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 5 in August translates into this advice:
Act with care - The need to guard against sun damage is communicated. Around midday, solar radiation is most harmful; hence, exposure should be limited. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Frequently asked questions

What is the usual temperature for Portland in August?

In Portland, in August, the average high-temperature is 73.9°F (23.3°C), and the average low-temperature is 63.5°F (17.5°C).

What is the average humidity in August in Portland?

In August, the average relative humidity is 79%.

How much does it rain in Portland in August?

In Portland, New York, in August, during 17.9 rainfall days, 2.91" (74mm) of precipitation is typically accumulated.

When it does not snow in Portland?

In Portland, New York, snow does not fall in June through September.

What is the average length of the day in August in Portland?

The average day length in August is 13h and 51min.

When is the sunrise / sunset in August in Portland?

On the first day of August in Portland, sunrise is at 6:11 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 7:53 pm EDT.

What month has the most sunshine in Portland?

The month with the most sunshine in Portland, New York, is August, with an average of 10.5h of sunshine.

How many hours of sunshine does Portland have in August?

In August, the average sunshine duration is 10.5h.

What is the UV index intensity in August in Portland?

In August, the average daily maximum UV index in Portland, New York, is 5. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
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
Portland, NY

Average temperature in August - Portland, NY
  • Average high temperature in August: 73.9°F

The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in August: 63.5°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

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Average pressure in August
Portland, NY

Average pressure in August - Portland, NY
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Portland, NY

Average wind speed in August - Portland, NY
  • Average wind speed in August: 8.7mph

The windiest month (with the highest average wind speed) is January (14.2mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

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Average humidity in August
Portland, NY

Average humidity in August - Portland, NY
  • Average humidity in August: 79%

The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is September (77%).

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Average rainfall in August
Portland, NY

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

The wettest month (with the highest rainfall) is October (3.27").
The driest month (with the least rainfall) is September (2.24").

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Average rainfall days in August
Portland, NY

Average rainfall days in August - Portland, NY
  • Average rainfall days in August: 17.9 days

The month with the highest number of rainy days is October (19.2 days).
The month with the least rainy days is January (8.1 days).

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Average snowfall in August
Portland, NY

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

The month with the highest snowfall is February (5.75").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Portland, NY

Average snowfall days in August - Portland, NY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (16 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Portland, NY

Average daylight in August / Average sunshine in August - Portland, NY
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in August: 10h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

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Average sunshine days in August
Portland, NY

Average sunshine days in August - Portland, NY
  • Average sunshine days in August: 10.3 days

The month with the most sunshine days is September (11.3 days).
The month with the least sunshine days is January (5.4 days).

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Average UV index in August
Portland, NY

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

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 August
Portland, NY

Average cloud cover in August - Portland, NY
  • Average cloud cover in August: 28

The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in August
Portland, NY

Average visibility in August - Portland, NY
  • Average visibility in August: 6mi

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

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Portland, New York, USA

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