September weather forecast
Clarks Corner, CT

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Weather in September

The first month of the autumn, September, is still a pleasant month in Clarks Corner, Connecticut, with temperature in the range of an average low of 55.4°F (13°C) and an average high of 72.9°F (22.7°C).

Temperature

September implies a soft temperature shift, with average high-temperatures reducing from August's moderately hot 80.2°F (26.8°C) to an agreeable 72.9°F (22.7°C). Throughout the month of September, Clarks Corner observes an average nighttime temperature of 55.4°F (13°C).

Humidity

In September, the average relative humidity is 78%.

Rainfall

September is the month with the least rainfall in Clarks Corner. Rain falls for 9.6 days and accumulates 0.39" (10mm) of precipitation.

Snowfall

In Clarks Corner, snow does not fall in June through October.

Daylight

The average length of the day in September in Clarks Corner is 12h and 28min.
On the first day of the month, sunrise is at 6:14 am and sunset at 7:21 pm. On the last day of September, sunrise is at 6:44 am and sunset at 6:31 pm EDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In September, the average daily maximum UV index in Clarks Corner, Connecticut, is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: A daily maximum UV index of 4 in September translates into the following instructions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

What is the usual temperature for Clarks Corner in September?

In September, in Clarks Corner, the average high-temperature is 72.9°F (22.7°C), and the average low-temperature is 55.4°F (13°C). In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is calculated to be 87.8°F (31°C).

What is the average humidity in September in Clarks Corner?

The average relative humidity in September in Clarks Corner is 78%.

What is the driest month in Clarks Corner?

The month with the least rainfall in Clarks Corner, Connecticut, is September, when the rain falls for 9.6 days and typically collects 0.39" (10mm) of precipitation.

How many days does it rain in September in Clarks Corner?

In Clarks Corner, in September, during 9.6 rainfall days, 0.39" (10mm) of precipitation is typically accumulated.

When it does not snow in Clarks Corner?

June through October are months without snowfall in Clarks Corner, Connecticut.

How many hours of daylight does Clarks Corner have in September?

In September, the average day length in Clarks Corner, Connecticut, is 12h and 28min.

When is the sunrise / sunset in September in Clarks Corner?

On the first day of September, sunrise is at 6:14 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:31 pm EDT.

How many hours of sunshine does Clarks Corner have in September?

The average sunshine duration in September is 8.6h.

What is the UV index reading in September in Clarks Corner?

The average daily maximum UV index in September in Clarks Corner is 4. A UV Index of 3 to 5 symbolizes a moderate health threat 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 September
Clarks Corner, CT

Average temperature in September - Clarks Corner, CT
  • Average high temperature in September: 72.9°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 (33.4°F).

  • Average low temperature in September: 55.4°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

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Average pressure in September
Clarks Corner, CT

Average pressure in September - Clarks Corner, CT
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Clarks Corner, CT

Average wind speed in September - Clarks Corner, CT
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in September
Clarks Corner, CT

Average humidity in September - Clarks Corner, CT
  • Average humidity in September: 78%

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 September
Clarks Corner, CT

Average rainfall in September - Clarks Corner, CT
  • Average rainfall in September: 0.39"

The wettest month (with the highest rainfall) is July (1.14").
The driest month (with the least rainfall) is September (0.39").

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Average rainfall days in September
Clarks Corner, CT

Average rainfall days in September - Clarks Corner, CT
  • Average rainfall days in September: 9.6 days

The month with the highest number of rainy days is July (13.4 days).
The month with the least rainy days is January (5.6 days).

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Average snowfall in September
Clarks Corner, CT

Average snowfall in September - Clarks Corner, CT
  • Average snowfall in September: 0"

The month with the highest snowfall is March (0.94").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Clarks Corner, CT

Average snowfall days in September - Clarks Corner, CT
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (5.4 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
Clarks Corner, CT

Average daylight in September / Average sunshine in September - Clarks Corner, 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 4min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

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Average sunshine days in September
Clarks Corner, CT

Average sunshine days in September - Clarks Corner, CT
  • Average sunshine days in September: 18.7 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (14.9 days).

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Average UV index in September
Clarks Corner, CT

Average UV index in September - Clarks Corner, CT
  • Average UV index in September: 4

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 September
Clarks Corner, CT

Average cloud cover in September - Clarks Corner, CT
  • Average cloud cover in September: 37

The months with the most cloud cover are February, March, May and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in September
Clarks Corner, CT

Average visibility in September - Clarks Corner, CT
  • Average visibility in September: 5mi

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

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Clarks Corner, Connecticut, USA

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