Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
August, on average, is the warmest month, registering a high temperature of 77.5°F (25.3°C) and a low of 71.2°F (21.8°C).Humidity
The average relative humidity in August in Riverhead, New York, is 76%.Rainfall
In Riverhead, in August, during 14.7 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Riverhead, during the entire year, the rain falls for 154.3 days and collects up to 30" (762mm) of precipitation.Snowfall
April, June through October are months without snowfall.Daylight
The average length of the day in August is 13h and 46min.On the first day of the month, sunrise is at 5:47 am and sunset at 8:06 pm. On the last day of August, sunrise is at 6:17 am and sunset at 7:24 pm EDT.
Sunshine
July and August, with an average of 10.7h of sunshine, are months with the most sunshine in Riverhead.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 6 during August translates into the following directions:
Shield from overexposure. Defense against sun-related harm is required. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Frequently asked questions
What part of the year is the hottest in Riverhead?
What are the temperatures in Riverhead in August?
What is the average humidity in August in Riverhead?
How many days does it rain in August in Riverhead?
When it does not snow in Riverhead?
What is the average length of the day in August in Riverhead?
What time are sunrise and sunset in August in Riverhead?
What is the month with the most sunshine in Riverhead?
How many hours of sunshine does Riverhead have in August?
What are the months with the highest UV index in Riverhead?
How high is the UV index in August in Riverhead?
Average temperature in August
Riverhead, NY
- Average high temperature in August: 77.5°F
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in August: 71.2°F
The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in August
Riverhead, NY
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Riverhead, NY
- Average wind speed in August: 9.6mph
The windiest month (with the highest average wind speed) is January (14.5mph).
The calmest month (with the lowest average wind speed) is July (9.5mph).
Average humidity in August
Riverhead, NY
- Average humidity in August: 76%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is November (71%).
Average rainfall in August
Riverhead, NY
- Average rainfall in August: 2.64"
The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in August
Riverhead, NY
- Average rainfall days in August: 14.7 days
The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is February (9 days).
Average snowfall in August
Riverhead, NY
- Average snowfall in August: 0"
The month with the highest snowfall is March (1.54").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in August
Riverhead, NY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Riverhead, NY
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 10h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in August
Riverhead, NY
- Average sunshine days in August: 13.8 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is February (13.2 days).
Average UV index in August
Riverhead, NY
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover in August
Riverhead, NY
- Average cloud cover in August: 27
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in August
Riverhead, NY
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Riverhead, New York, USA
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