September weather forecast
Bantam, CT

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Weather in September

The first month of the autumn, September, is also an agreeable month in Bantam, Connecticut, with temperature in the range of an average high of 72.3°F (22.4°C) and an average low of 54.1°F (12.3°C).

Temperature

The arrival of September signals a subtle shift in temperature, down from a moderately hot 79.7°F (26.5°C) in August to a pleasant 72.3°F (22.4°C). The low-temperature average for Bantam during September stands at a fresh 54.1°F (12.3°C).

Humidity

In September, the average relative humidity in Bantam, Connecticut, is 79%.

Rainfall

September is the month with the least rainfall. Rain falls for 13.5 days and accumulates 2.24" (57mm) of precipitation.

Snowfall

In Bantam, Connecticut, snow does not fall in June through September.

Daylight

In Bantam, the average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:19 am and sunset at 7:25 pm. On the last day of September, in Bantam, sunrise is at 6:49 am and sunset at 6:35 pm EDT.

Sunshine

The average sunshine in September is 8.5h.

UV index

In September, the average daily maximum UV index in Bantam, Connecticut, is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 4 during September translates into the following directions:
Heed the precautions - It is counselled to guard against solar damage. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Frequently asked questions

What is the usual temperature for Bantam in September?

September temperatures in Bantam, Connecticut, vary between a high-temperature of 72.3°F (22.4°C) and a low-temperature of 54.1°F (12.3°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in July is estimated at 87.8°F (31°C).

What is the average humidity in September in Bantam?

The average relative humidity in September in Bantam, Connecticut, is 79%.

What is the driest month in Bantam?

September is the month with the least rainfall in Bantam, Connecticut. Rain falls for 13.5 days and accumulates 2.24" (57mm) of precipitation.

How much does it rain in Bantam in September?

In Bantam, in September, during 13.5 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.

When it does not snow in Bantam?

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

Does it snow in Bantam in September?

In Bantam, Connecticut, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Bantam have in September?

The average day length in September in Bantam is 12h and 28min.

When is the sunrise / sunset in September in Bantam?

On the first day of September in Bantam, Connecticut, sunrise is at 6:19 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:35 pm EDT.

How many hours of sunshine does Bantam have in September?

In Bantam, the average sunshine duration in September is 8.5h.

How high is the UV index in September in Bantam?

In September, the average daily maximum UV index in Bantam is 4. A UV Index reading of 3 to 5 represents a moderate health threat 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 September
Bantam, CT

Average temperature in September - Bantam, CT
  • Average high temperature in September: 72.3°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in September: 54.1°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in September
Bantam, CT

Average pressure in September - Bantam, CT
  • Average pressure in September: 30.06"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 September
Bantam, CT

Average wind speed in September - Bantam, CT
  • Average wind speed in September: 5.6mph

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 (5mph).

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Average humidity in September
Bantam, CT

Average humidity in September - Bantam, CT
  • Average humidity in September: 79%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in September
Bantam, CT

Average rainfall in September - Bantam, CT
  • Average rainfall in September: 2.24"

The wettest month (with the highest rainfall) is December (3.62").
The driest month (with the least rainfall) is September (2.24").

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Average rainfall days in September
Bantam, CT

Average rainfall days in September - Bantam, CT
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is June (17.7 days).
The months with the least rainy days are January and February (8.1 days).

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Average snowfall in September
Bantam, CT

Average snowfall in September - Bantam, CT
  • Average snowfall in September: 0"

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

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Average snowfall days in September
Bantam, CT

Average snowfall days in September - Bantam, CT
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Bantam, CT

Average daylight in September / Average sunshine in September - Bantam, CT
  • Average daylight in September: 12h and 3min

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 September: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days in September
Bantam, CT

Average sunshine days in September - Bantam, CT
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is June (10.5 days).

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Average UV index in September
Bantam, CT

Average UV index in September - Bantam, CT
  • Average UV index in September: 4

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).

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Average cloud cover in September
Bantam, CT

Average cloud cover in September - Bantam, CT
  • Average cloud cover in September: 39

The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 36).

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Average visibility in September
Bantam, CT

Average visibility in September - Bantam, CT
  • Average visibility in September: 5mi

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

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Bantam, Connecticut, USA

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