August weather forecast
Simsbury, CT

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The iconic old tower set amid dense tree cover in Simsbury, Connecticut
The iconic old tower set amid dense tree cover in Simsbury, Connecticut

Weather in August

Maintaining the warmth of July, August in Simsbury offers a high temperature of around 80.2°F (26.8°C). Relatively cooler nights offer a soothing contrast to the day's warmth, making this month an enjoyable experience. Although the heat is persistent, an occasional cloud cover provides brief respites. August is the culmination of the summer heat, marked by clear skies, sunny days, and the occasional need for shade. This month wraps up the summer season, bracing the city for a gradual, subtle transition into autumn.

Temperature

August's advent denotes a minor fluctuation in the average high-temperature to a still warm 80.2°F (26.8°C) from July's 82.2°F (27.9°C). Throughout the month of August, Simsbury reports a steady low-temperature average of 61.5°F (16.4°C).

Humidity

The average relative humidity in August is 75%.

Rainfall

In August, in Simsbury, the rain falls for 14.9 days. Throughout August, 2.52" (64mm) of precipitation is accumulated. Throughout the year, in Simsbury, Connecticut, there are 159.6 rainfall days, and 31.97" (812mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Simsbury, the average length of the day in August is 13h and 49min.
On the first day of the month, sunrise is at 5:45 am and sunset at 8:09 pm. On the last day of August, in Simsbury, sunrise is at 6:16 am and sunset at 7:26 pm EDT.

Sunshine

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

UV index

The average daily maximum UV index in August in Simsbury is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In August, an average UV index of 5 transforms into the following instructions:
Exercise prevention - Precautions against solar damage are endorsed. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Simsbury in August?

In August, in Simsbury, the average high-temperature is 80.2°F (26.8°C), and the average low-temperature is 61.5°F (16.4°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in July is calculated to be 87.8°F (31°C).

What is the average humidity in August in Simsbury?

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

How many days does it rain in August in Simsbury?

In Simsbury, during August, the rain falls for 14.9 days and regularly aggregates up to 2.52" (64mm) of precipitation.

When it does not snow in Simsbury?

June through September are months without snowfall in Simsbury.

How many hours of daylight does Simsbury have in August?

In Simsbury, Connecticut, the average day length in August is 13h and 49min.

When is the sunrise / sunset in August in Simsbury?

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 7:26 pm EDT.

What are the months with the most sunshine in Simsbury?

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 in Simsbury?

In Simsbury, the average sunshine duration in August is 10.3h.

How high is the UV index in August in Simsbury?

In Simsbury, Connecticut, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
Simsbury, CT

Average temperature in August - Simsbury, 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).

Average pressure in August
Simsbury, CT

Average pressure in August - Simsbury, 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
Simsbury, CT

Average wind speed in August - Simsbury, 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).

Average humidity in August
Simsbury, CT

Average humidity in August - Simsbury, 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%).

Average rainfall in August
Simsbury, CT

Average rainfall in August - Simsbury, 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").

Average rainfall days in August
Simsbury, CT

Average rainfall days in August - Simsbury, 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).

Average snowfall in August
Simsbury, CT

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

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

Average snowfall days in August
Simsbury, CT

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

The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Simsbury, 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
Simsbury, CT

Average sunshine days in August - Simsbury, 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).

Average UV index in August
Simsbury, CT

Average UV index in August - Simsbury, 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
Simsbury, CT

Average cloud cover in August - Simsbury, 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
Simsbury, CT

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

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

Simsbury, Connecticut, USA

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