August weather forecastRotterdam, NY
August
Weather in August
The last month of the summer, August, is another warm month in Rotterdam, New York, with an average temperature varying between 58.1°F (14.5°C) and 79.2°F (26.2°C).Temperature
The beginning of August records an average high-temperature of a still warm 79.2°F (26.2°C), almost echoing the conditions of the previous month. The month of August records an average low-temperature of 58.1°F (14.5°C).Humidity
The average relative humidity in August is 76%.Rainfall
In Rotterdam, in August, during 14.4 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. Throughout the year, there are 137.4 rainfall days, and 25.75" (654mm) of precipitation is accumulated.Snowfall
In Rotterdam, New York, snow does not fall in June through September.Daylight
The average length of the day in August is 13h and 52min.On the first day of August, sunrise is at 5:48 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:31 pm EDT.
Sunshine
August has the most sunshine of the year, with an average of 10.5h of sunshine.UV index
The months with the highest UV index are May 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 exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 5 in August translates into this advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Rotterdam, NY
- Average high temperature in August: 79.2°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in August: 58.1°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 (16.9°F).
Average pressure in August
Rotterdam, 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 (29.92"Hg).
Average wind speed in August
Rotterdam, NY
- Average wind speed in August: 5.2mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in August
Rotterdam, NY
- Average humidity in August: 76%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (74%).
Average rainfall in August
Rotterdam, NY
- Average rainfall in August: 2.4"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is January (1.57").
Average rainfall days in August
Rotterdam, NY
- Average rainfall days in August: 14.4 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in August
Rotterdam, NY
- Average snowfall in August: 0"
The month with the highest snowfall is February (6.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Rotterdam, NY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Rotterdam, NY
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 18min).
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 February (Average sunshine: 3h and 48min).
Average sunshine days in August
Rotterdam, NY
- Average sunshine days in August: 14.8 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is April (12.6 days).
Average UV index in August
Rotterdam, NY
- Average UV index in August: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Rotterdam, NY
- Average cloud cover in August: 32
The month with the most cloud cover is February (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in August
Rotterdam, NY
- Average visibility in August: 6mi
The months with the highest visibility are April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are January, February, March, May and September (5mi).
