August weather forecast
Rocky Hill, CT

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Weather in August

August, the last month of the summer in Rocky Hill, is also a moderately hot month, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 62.2°F (16.8°C).

Temperature

The advent of August observes an average high-temperature of a still moderately hot 81°F (27.2°C), nearly identical to July's 83.1°F (28.4°C). In Rocky Hill, an average temperature of 62.2°F (16.8°C) is noted during August nights.

Heat index

August's mean heat index is computed to be a hot 86°F (30°C). With extended exposure and activity, one might feel exhausted and experience heat cramps.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.

Humidity

The average relative humidity in August is 75%.

Rainfall

In August, the rain falls for 17 days. Throughout August, 2.72" (69mm) of precipitation is accumulated. In Rocky Hill, during the entire year, the rain falls for 164.5 days and collects up to 32.09" (815mm) of precipitation.

Snowfall

In Rocky Hill, Connecticut, snow does not fall in June through October.

Daylight

In Rocky Hill, the average length of the day in August is 13h and 48min.
On the first day of August, sunrise is at 5:45 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:25 pm EDT.

Sunshine

July and August, with an average of 10.4h of sunshine, are months with the most sunshine.

UV index

In Rocky Hill, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In August, the maximum UV index of 5 suggests this advice:
Take precautions - Protection against sun damage is advised. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

August temperatures vary between a high-temperature of 81°F (27.2°C) and a low-temperature of 62.2°F (16.8°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 86°F (30°C).

What is the average humidity in August?

The average relative humidity in August in Rocky Hill, Connecticut, is 75%.

How much does it rain in August?

In Rocky Hill, during August, the rain falls for 17 days and regularly aggregates up to 2.72" (69mm) of precipitation.

When it does not snow?

In Rocky Hill, snow does not fall in June through October.

What is the average length of the day in August?

The average day length in August is 13h and 48min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:45 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:25 pm EDT.

What is the month with the most sunshine?

July and August, with an average of 10.4h of sunshine, are months with the most sunshine.

How many hours of sunshine does Rocky Hill have in August?

In Rocky Hill, the average sunshine duration in August is 10.4h.

How high is the UV index in August?

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Rocky Hill, CT

Average temperature in August - Rocky Hill, CT
  • Average high temperature in August: 81°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in August: 62.2°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

Average pressure in August
Rocky Hill, CT

Average pressure in August - Rocky Hill, 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
Rocky Hill, CT

Average wind speed in August - Rocky Hill, CT
  • Average wind speed in August: 5.3mph

The windiest months (with the highest average wind speed) are January and March (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in August
Rocky Hill, CT

Average humidity in August - Rocky Hill, CT
  • Average humidity in August: 75%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (70%).

Average rainfall in August
Rocky Hill, CT

Average rainfall in August - Rocky Hill, CT
  • Average rainfall in August: 2.72"

The wettest month (with the highest rainfall) is December (3.19").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in August
Rocky Hill, CT

Average rainfall days in August - Rocky Hill, CT
  • Average rainfall days in August: 17 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is January (9.2 days).

Average snowfall in August
Rocky Hill, CT

Average snowfall in August - Rocky Hill, CT
  • Average snowfall in August: 0"

The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in August
Rocky Hill, CT

Average snowfall days in August - Rocky Hill, CT
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Rocky Hill, CT

Average daylight in August / Average sunshine in August - Rocky Hill, CT
  • Average daylight in August: 13h and 5min

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 2min

The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in August
Rocky Hill, CT

Average sunshine days in August - Rocky Hill, CT
  • Average sunshine days in August: 11.4 days

The month with the most sunshine days is January (17.6 days).
The month with the least sunshine days is June (10.7 days).

Average UV index in August
Rocky Hill, CT

Average UV index in August - Rocky Hill, CT
  • Average UV index in August: 5

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in August
Rocky Hill, CT

Average cloud cover in August - Rocky Hill, CT
  • Average cloud cover in August: 33

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in August
Rocky Hill, CT

Average visibility in August - Rocky Hill, CT
  • Average visibility in August: 6mi

The months with the highest visibility are January, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are February, May and September (5mi).

Rocky Hill, Connecticut, USA

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