August weather forecast
East Granby, CT

Share

Weather in August

August, the last month of the summer in East Granby, is another warm month, with an average temperature varying between 80.6°F (27°C) and 61.2°F (16.2°C).

Temperature

East Granby marks the onset of August with an average high-temperature of a still moderately hot 80.6°F (27°C), a subtle shift from July's 82.4°F (28°C). Throughout the nights in August, an average low-temperature of 61.2°F (16.2°C) is noted.

Heat index

The heat index in August is calculated to be 84.2°F (29°C). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.
Remember that heat index calculations are made for conditions in the shade with light wind. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values hold great significance to children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.

Humidity

In August, the average relative humidity is 76%.

Rainfall

In East Granby, in August, during 10.8 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. In East Granby, during the entire year, the rain falls for 113.2 days and collects up to 10.91" (277mm) of precipitation.

Snowfall

June through October are months without snowfall.

Daylight

The average length of the day in August is 13h and 49min.
On the first day of August, sunrise is at 5:45 am and sunset at 8:09 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 10.3h of sunshine, are months with the most sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In August, the maximum UV index of 6 suggests this advice:
Shield from overexposure. Defense against sun-related harm is required. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Updated: Aug 24, 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 80.6°F (27°C) and a low-temperature of 61.2°F (16.2°C). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in August is calculated to be 84.2°F (29°C).

What is the average humidity in August?

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

How many days does it rain in August?

In East Granby, during August, the rain falls for 10.8 days and regularly aggregates up to 0.83" (21mm) of precipitation.

When it does not snow?

June through October are months without snowfall.

What is the average length of the day in August?

In East Granby, the average day length in August is 13h and 49min.

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 8:09 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:25 pm EDT.

What are the months with the most sunshine?

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

How long on average sun shines in August?

The average sunshine duration in August is 10.3h.

When is the highest UV index?

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

What is the UV index reading in August?

In East Granby, Connecticut, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health risk from 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
East Granby, CT

Average temperature in August - East Granby, 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 (31.8°F).

  • Average low temperature in August: 61.2°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
East Granby, CT

Average pressure in August - East Granby, 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
East Granby, CT

Average wind speed in August - East Granby, CT
  • Average wind speed in August: 5.1mph

The windiest months (with the highest average wind speed) are January and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in August
East Granby, CT

Average humidity in August - East Granby, CT
  • Average humidity in August: 76%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (71%).

Average rainfall in August
East Granby, CT

Average rainfall in August - East Granby, CT
  • Average rainfall in August: 0.83"

The wettest months (with the highest rainfall) are July and October (1.14").
The driest month (with the least rainfall) is September (0.43").

Average rainfall days in August
East Granby, CT

Average rainfall days in August - East Granby, CT
  • Average rainfall days in August: 10.8 days

The month with the highest number of rainy days is June (11.7 days).
The month with the least rainy days is January (6.3 days).

Average snowfall in August
East Granby, CT

Average snowfall in August - East Granby, CT
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.77").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in August
East Granby, CT

Average snowfall days in August - East Granby, CT
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (6.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
East Granby, CT

Average daylight in August / Average sunshine in August - East Granby, 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 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in August
East Granby, CT

Average sunshine days in August - East Granby, CT
  • Average sunshine days in August: 18.3 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is April (16.1 days).

Average UV index in August
East Granby, CT

Average UV index in August - East Granby, 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
East Granby, CT

Average cloud cover in August - East Granby, 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).

Average visibility in August
East Granby, CT

Average visibility in August - East Granby, 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).

East Granby, Connecticut, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location