August weather forecastUnion, CT
August
Weather in August
The last month of the summer, August, is another warm month in Union, Connecticut, with an average temperature ranging between max 79°F (26.1°C) and min 60.3°F (15.7°C).Temperature
August's advent presents an average high-temperature of a still warm 79°F (26.1°C), indicating a slight variation from the conditions of the previous month. Throughout August, an average low-temperature of 60.3°F (15.7°C) is experienced in Union.Humidity
In Union, the average relative humidity in August is 78%.Rainfall
In Union, Connecticut, in August, it is raining for 15.2 days, with typically 2.56" (65mm) of accumulated precipitation. Throughout the year, in Union, there are 148.3 rainfall days, and 29.21" (742mm) of precipitation is accumulated.Snowfall
In Union, snow does not fall in June through September.Daylight
In Union, the average length of the day in August is 13h and 49min.On the first day of the month, sunrise is at 5:42 am and sunset at 8:06 pm. On the last day of August, in Union, sunrise is at 6:13 am and sunset at 7:23 pm EDT.
Sunshine
August has the most sunshine of the year in Union, with an average of 10h of sunshine.UV index
In Union, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 5 during August translates into the following directions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Union, CT
- Average high temperature in August: 79°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 (31.3°F).
- Average low temperature in August: 60.3°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 (19°F).
Average pressure in August
Union, 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
Union, CT
- Average wind speed in August: 5.5mph
The windiest months (with the highest average wind speed) are January and February (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in August
Union, CT
- Average humidity in August: 78%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (73%).
Average rainfall in August
Union, CT
- Average rainfall in August: 2.56"
The wettest month (with the highest rainfall) is July (2.76").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in August
Union, CT
- Average rainfall days in August: 15.2 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in August
Union, CT
- Average snowfall in August: 0"
The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Union, CT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Union, 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 0min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in August
Union, CT
- Average sunshine days in August: 14.1 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (13.1 days).
Average UV index in August
Union, CT
- Average UV index in August: 5
The months with the highest UV index are June and July (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
Union, CT
- Average cloud cover in August: 37
The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in August
Union, CT
- Average visibility in August: 5mi
The months with the highest visibility are March, April, November and December (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and October (5mi).





