August weather forecastRockville, CT
August
Weather in August
The last month of the summer, August, is another warm month in Rockville, Connecticut, with an average temperature varying between 80.1°F (26.7°C) and 61.3°F (16.3°C).Temperature
An average high-temperature of a still moderately hot 80.1°F (26.7°C) marks August, exhibiting a close resemblance to the conditions in July. During the nights in August, Rockville experiences a consistent average temperature of 61.3°F (16.3°C).Humidity
In August, the average relative humidity in Rockville, Connecticut, is 76%.Rainfall
In August, in Rockville, the rain falls for 9.8 days. Throughout August, 0.91" (23mm) of precipitation is accumulated. Throughout the year, in Rockville, there are 105.6 rainfall days, and 9.84" (250mm) of precipitation is accumulated.Snowfall
In Rockville, snow does not fall in June through October.Daylight
The average length of the day in August is 13h and 49min.On the first day of the month, sunrise is at 5:44 am and sunset at 8:07 pm. On the last day of August, sunrise is at 6:15 am and sunset at 7:24 pm EDT.
Sunshine
The months with the most sunshine in Rockville are July and August, with an average of 10.3h of sunshine.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Rockville, Connecticut. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum daily UV index of 6 during August morphs into the following directions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Rockville, CT
- Average high temperature in August: 80.1°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32.4°F).
- Average low temperature in August: 61.3°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in August
Rockville, CT
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Rockville, CT
- Average wind speed in August: 5.2mph
The windiest months (with the highest average wind speed) are January and March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in August
Rockville, CT
- Average humidity in August: 76%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).
Average rainfall in August
Rockville, CT
- Average rainfall in August: 0.91"
The wettest months (with the highest rainfall) are May, June and July (1.1").
The driest month (with the least rainfall) is September (0.39").
Average rainfall days in August
Rockville, CT
- Average rainfall days in August: 9.8 days
The month with the highest number of rainy days is June (12.1 days).
The months with the least rainy days are January and February (5.5 days).
Average snowfall in August
Rockville, CT
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in August
Rockville, CT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Rockville, 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: 10h and 18min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in August
Rockville, CT
- Average sunshine days in August: 18.3 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is June (15.7 days).
Average UV index in August
Rockville, CT
- 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, November and December (UV index 2).
Average cloud cover in August
Rockville, CT
- Average cloud cover in August: 34
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in August
Rockville, CT
- Average visibility in August: 5mi
The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).





