August weather forecastRiverton, CT
August
Weather in August
The last month of the summer, August, is another warm month in Riverton, Connecticut, with an average temperature fluctuating between 60.1°F (15.6°C) and 79°F (26.1°C).Temperature
Riverton's transition from July to August introduces an average high-temperature of a still moderately hot 79°F (26.1°C), marking an insignificant variation from the 81°F (27.2°C). Riverton experiences a mean temperature of 60.1°F (15.6°C) during August nights.Humidity
In August, the average relative humidity is 78%.Rainfall
In Riverton, in August, it is raining for 14 days, with typically 1.57" (40mm) of accumulated precipitation. In Riverton, during the entire year, the rain falls for 134.4 days and collects up to 15.67" (398mm) of precipitation.Snowfall
In Riverton, Connecticut, snow does not fall in May through September.Daylight
In August, the average length of the day in Riverton is 13h and 49min.On the first day of the month, sunrise is at 5:46 am and sunset at 8:10 pm. On the last day of August, sunrise is at 6:17 am and sunset at 7:26 pm EDT.
Sunshine
The average sunshine in August is 9.8h.UV index
In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 5 in August leads to these recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Riverton, CT
- Average high temperature in August: 79°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in August: 60.1°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in August
Riverton, CT
- 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
Riverton, CT
- Average wind speed in August: 5.3mph
The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in August
Riverton, CT
- Average humidity in August: 78%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (73%).
Average rainfall in August
Riverton, CT
- Average rainfall in August: 1.57"
The wettest month (with the highest rainfall) is July (1.85").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in August
Riverton, CT
- Average rainfall days in August: 14 days
The months with the highest number of rainy days are May and July (15.3 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in August
Riverton, CT
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Riverton, CT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Riverton, CT
- 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 12min).
- Average sunshine in August: 9h and 48min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in August
Riverton, CT
- Average sunshine days in August: 14.1 days
The month with the most sunshine days is January (19.4 days).
The months with the least sunshine days are April and May (13.1 days).
Average UV index in August
Riverton, CT
- Average UV index in August: 5
The month with the highest UV index is June (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
Riverton, CT
- Average cloud cover in August: 38
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in August
Riverton, CT
- Average visibility in August: 5mi
The months with the highest visibility are January, April, November and December (6mi).
The months with the lowest visibility are February, March, May, June, July, August, September and October (5mi).





