August weather forecast
Collinsville, CT

Weather in August

August, the last month of the summer, in Collinsville, is another warm month, with average temperature varying between 61.5°F (16.4°C) and 80.2°F (26.8°C).

Temperature

In August, the average high-temperature is relatively the same as in July - a still warm 80.2°F (26.8°C). In August, in Collinsville, the average low-temperature is 61.5°F (16.4°C).

Humidity

The average relative humidity in August is 75%.

Rainfall

In Collinsville, Connecticut, in August, it is raining for 14.9 days, with typically 2.52" (64mm) of accumulated precipitation. In Collinsville, Connecticut, during the entire year, the rain falls for 159.6 days and collects up to 31.97" (812mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day in Collinsville is 13.8h.

Sunshine

Months with the most sunshine are July and August, with an average of 10.3h of sunshine.

UV index

In Collinsville, Connecticut, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to the Sun's UV rays for the average person.
Note: In August, the average maximum UV index of 5 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the average humidity in August in Collinsville?

In Collinsville, the average relative humidity in August is 75%.

How much does it rain in Collinsville in August?

In Collinsville, in August, during 14.9 rainfall days, 2.52" (64mm) of precipitation is typically accumulated.

When it does not snow in Collinsville?

June through September are months without snowfall in Collinsville, Connecticut.

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

In August, the average length of the day in Collinsville is 13.8h.

What is the month with the most sunshine in Collinsville?

Months with the most sunshine in Collinsville, Connecticut, are July and August, with an average of 10.3h of sunshine.

How many hours of sunshine does Collinsville have in August?

In August, the average sunshine in Collinsville, Connecticut, is 10.3h.

How high is the UV index in August in Collinsville?

In Collinsville, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV radiation.

Average temperature in August
Collinsville, CT

Average temperature in August - Collinsville, CT
  • Average high temperature in August: 80.2°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°F).

  • Average low temperature in August: 61.5°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 (20.1°F).

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Average pressure in August
Collinsville, CT

Average pressure in August - Collinsville, CT
  • Average pressure in August: 29.98"

The month with the highest atmospheric pressure is November (30.09").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in August
Collinsville, CT

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

The windiest months (with the highest average wind speed) are January and March (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
Collinsville, CT

Average humidity in August - Collinsville, CT
  • Average humidity in August: 75%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in August
Collinsville, CT

Average rainfall in August - Collinsville, CT
  • Average rainfall in August: 2.52"

The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.97").

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Average rainfall days in August
Collinsville, CT

Average rainfall days in August - Collinsville, CT
  • Average rainfall days in August: 14.9 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (9.4 days).

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Average snowfall in August
Collinsville, CT

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

The month with the highest snowfall is February (5.24").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Collinsville, CT

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

The month with the highest number of snowfall days is February (8.9 days).
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
Collinsville, CT

Average daylight in August / Average sunshine in August - Collinsville, CT
  • Average daylight in August: 13.8h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in August: 10.3h

Months with the most sunshine are July and August (Average sunshine: 10.3h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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Average sunshine days in August
Collinsville, CT

Average sunshine days in August - Collinsville, CT
  • Average sunshine days in August: 14.2 days

The month with the most sunshine days is January (17.1 days).
The month with the least sunshine days is June (11.6 days).

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Average UV index in August
Collinsville, CT

Average UV index in August - Collinsville, CT
  • Average UV index in August: 5

Months with the highest UV index are June and July (UV index 6).
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
Collinsville, CT

Average cloud cover in August - Collinsville, CT
  • Average cloud cover in August: 34

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in August
Collinsville, CT

Average visibility in August - Collinsville, CT
  • Average visibility in August: 5mi

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

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