August weather forecast
Waterbury, CT

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Weather in August

August sees a slight dip in temperatures compared to July, from 61.7°F (16.5°C) to 80.6°F (27°C), signaling the beginning of the end of summer. The city continues to bask in the summer spirit with beach visits, BBQs, and music festivals. An occasional cool breeze prepares residents for the approaching autumn season. The gardens bask in their last full month of sunshine as shadows start to lengthen towards the end of the month.

Temperature

The arrival of August brings an average high-temperature of a still moderately hot 80.6°F (27°C), subtly diverging from July's 82.4°F (28°C). Waterbury records a mean low-temperature of 61.7°F (16.5°C) in August.

Heat index

The heat index value during August is estimated at 84.2°F (29°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.
It is important to note that the heat index values are for shaded areas and light wind scenarios. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.

Humidity

In Waterbury, the average relative humidity in August is 76%.

Rainfall

In August, in Waterbury, Connecticut, the rain falls for 16.8 days. Throughout August, 2.91" (74mm) of precipitation is accumulated. In Waterbury, Connecticut, during the entire year, the rain falls for 158.5 days and collects up to 34.57" (878mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Waterbury, the average length of the day in August is 13h and 48min.
On the first day of August in Waterbury, sunrise is at 5:47 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:26 pm EDT.

Sunshine

July and August, with an average of 10.1h of sunshine, are months with the most sunshine in Waterbury.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high daily UV index of 6 during August translates into the following directions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

What is the usual temperature for Waterbury in August?

In Waterbury, 80.6°F (27°C) is the average high-temperature and 61.7°F (16.5°C) is the average low-temperature during August. The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 84.2°F (29°C).

What is the average humidity in August in Waterbury?

In August, the average relative humidity in Waterbury, Connecticut, is 76%.

How much does it rain in Waterbury in August?

In Waterbury, Connecticut, in August, it is raining for 16.8 days, with typically 2.91" (74mm) of accumulated precipitation.

When it does not snow in Waterbury?

In Waterbury, snow does not fall in June through September.

What is the average length of the day in August in Waterbury?

In August, the average day length in Waterbury, Connecticut, is 13h and 48min.

What time are sunrise and sunset in August in Waterbury?

In August, on the first day of the month, sunrise is at 5:47 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:26 pm EDT.

What are the months with the most sunshine in Waterbury?

The months with the most sunshine are July and August, with an average of 10.1h of sunshine.

How long on average sun shines in August in Waterbury?

In Waterbury, Connecticut, the average sunshine duration in August is 10.1h.

When is the highest UV index in Waterbury?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Waterbury, Connecticut.

How high is the UV index in August in Waterbury?

In Waterbury, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
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
Waterbury, CT

Average temperature in August - Waterbury, CT
  • Average high temperature in August: 80.6°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.3°F).

  • Average low temperature in August: 61.7°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).

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Average pressure in August
Waterbury, CT

Average pressure in August - Waterbury, 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).

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Average wind speed in August
Waterbury, CT

Average wind speed in August - Waterbury, CT
  • Average wind speed in August: 5.2mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

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Average humidity in August
Waterbury, CT

Average humidity in August - Waterbury, 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 (72%).

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Average rainfall in August
Waterbury, CT

Average rainfall in August - Waterbury, CT
  • Average rainfall in August: 2.91"

The wettest month (with the highest rainfall) is December (3.78").
The driest month (with the least rainfall) is September (2.13").

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Average rainfall days in August
Waterbury, CT

Average rainfall days in August - Waterbury, CT
  • Average rainfall days in August: 16.8 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in August
Waterbury, CT

Average snowfall in August - Waterbury, CT
  • Average snowfall in August: 0"

The month with the highest snowfall is February (5.39").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Waterbury, CT

Average snowfall days in August - Waterbury, CT
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Waterbury, CT

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

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 1min

The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in August
Waterbury, CT

Average sunshine days in August - Waterbury, CT
  • Average sunshine days in August: 11.6 days

The month with the most sunshine days is January (18.1 days).
The month with the least sunshine days is June (11.1 days).

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Average UV index in August
Waterbury, CT

Average UV index in August - Waterbury, 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).

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Average cloud cover in August
Waterbury, CT

Average cloud cover in August - Waterbury, CT
  • Average cloud cover in August: 35

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in August
Waterbury, CT

Average visibility in August - Waterbury, 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).

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Waterbury, Connecticut, USA

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