August weather forecastCornwall-on-Hudson, NY
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Cornwall-on-Hudson, New York, with an average temperature ranging between min 61.2°F (16.2°C) and max 82°F (27.8°C).Temperature
In Cornwall-on-Hudson, August's average high-temperature stands at a still moderately hot 82°F (27.8°C), closely related to the preceding month. August brings an average low-temperature of 61.2°F (16.2°C) to Cornwall-on-Hudson.Heat index
Throughout August, the heat index is evaluated at a hot 87.8°F (31°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.In reference to the heat index, it's for places in shade and with a slight wind. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Humidity
In Cornwall-on-Hudson, the average relative humidity in August is 76%.Rainfall
In Cornwall-on-Hudson, in August, during 15.8 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. Throughout the year, there are 155.7 rainfall days, and 31.5" (800mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in August is 13h and 47min.On the first day of the month, sunrise is at 5:51 am and sunset at 8:13 pm. On the last day of August, sunrise is at 6:22 am and sunset at 7:30 pm EDT.
Sunshine
In August, the average sunshine is 10.1h.UV index
The months with the highest UV index are June and August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 6 during August leads to these advisories:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Cornwall-on-Hudson, NY
- Average high temperature in August: 82°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in August: 61.2°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in August
Cornwall-on-Hudson, 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
Cornwall-on-Hudson, NY
- Average wind speed in August: 4.5mph
The windiest month (with the highest average wind speed) is March (7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in August
Cornwall-on-Hudson, NY
- Average humidity in August: 76%
The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (73%).
Average rainfall in August
Cornwall-on-Hudson, NY
- Average rainfall in August: 2.6"
The wettest month (with the highest rainfall) is December (3.23").
The driest months (with the least rainfall) are January and September (1.97").
Average rainfall days in August
Cornwall-on-Hudson, NY
- Average rainfall days in August: 15.8 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in August
Cornwall-on-Hudson, NY
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Cornwall-on-Hudson, NY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Cornwall-on-Hudson, NY
- Average daylight in August: 13h and 48min
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 12min).
- Average sunshine in August: 10h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in August
Cornwall-on-Hudson, NY
- Average sunshine days in August: 12.8 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in August
Cornwall-on-Hudson, NY
- Average UV index in August: 6
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in August
Cornwall-on-Hudson, NY
- Average cloud cover in August: 34
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in August
Cornwall-on-Hudson, NY
- Average visibility in August: 5mi
The months with the highest visibility are April, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and October (5mi).





