August weather forecastPortland, NY
August
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in August /
Average sunshine in August
Portland, NY
- Average daylight in August: 13h and 48min
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 30min
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).
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).
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).
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).
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).
