September weather forecast
Coventry Lake, CT

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Weather in September

The first month of the autumn, September, is also an agreeable month in Coventry Lake, Connecticut, with an average temperature ranging between min 55.4°F (13°C) and max 73.2°F (22.9°C).

Temperature

In Coventry Lake, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's warm 80.2°F (26.8°C) to a pleasant 73.2°F (22.9°C). September generally records an average low-temperature of 55.4°F (13°C).

Humidity

In September, the average relative humidity is 78%.

Rainfall

The month with the least rainfall in Coventry Lake is September, when the rain falls for 13.5 days and typically collects 1.73" (44mm) of precipitation.

Snowfall

June through October are months without snowfall.

Daylight

The average length of the day in September in Coventry Lake is 12h and 28min.
On the first day of September in Coventry Lake, Connecticut, sunrise is at 6:15 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:32 pm EDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index in Coventry Lake, Connecticut, is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 4 suggests these recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

What are September temperatures in Coventry Lake?

During September, Coventry Lake experiences an average high-temperature of 73.2°F (22.9°C) and a low-temperature of 55.4°F (13°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 87.8°F (31°C).

What is the average humidity in September in Coventry Lake?

In Coventry Lake, Connecticut, the average relative humidity in September is 78%.

What is the driest month in Coventry Lake?

The month with the least rainfall is September, when the rain falls for 13.5 days and typically collects 1.73" (44mm) of precipitation.

How many days does it rain in September in Coventry Lake?

In Coventry Lake, in September, during 13.5 rainfall days, 1.73" (44mm) of precipitation is typically accumulated.

When it does not snow in Coventry Lake?

In Coventry Lake, snow does not fall in June through October.

How many hours of daylight does Coventry Lake have in September?

The average day length in September in Coventry Lake, Connecticut, is 12h and 28min.

When is the sunrise / sunset in September in Coventry Lake?

On the first day of September, sunrise is at 6:15 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:32 pm EDT.

How long on average sun shines in September in Coventry Lake?

In Coventry Lake, Connecticut, the average sunshine duration in September is 8.6h.

What is the UV index intensity in September in Coventry Lake?

In Coventry Lake, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to 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
Coventry Lake, CT

Average temperature in September - Coventry Lake, CT
  • Average high temperature in September: 73.2°F

The warmest month (with the highest average high temperature) is July (81.9°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 (21.6°F).

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Average pressure in September
Coventry Lake, CT

Average pressure in September - Coventry Lake, 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
Coventry Lake, CT

Average wind speed in September - Coventry Lake, CT
  • Average wind speed in September: 6.2mph

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

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Average humidity in September
Coventry Lake, CT

Average humidity in September - Coventry Lake, CT
  • Average humidity in September: 78%

The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in September
Coventry Lake, CT

Average rainfall in September - Coventry Lake, CT
  • Average rainfall in September: 1.73"

The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").

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Average rainfall days in September
Coventry Lake, CT

Average rainfall days in September - Coventry Lake, CT
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.1 days).

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Average snowfall in September
Coventry Lake, CT

Average snowfall in September - Coventry Lake, CT
  • Average snowfall in September: 0"

The month with the highest snowfall is March (4.41").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Coventry Lake, CT

Average snowfall days in September - Coventry Lake, CT
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Coventry Lake, CT

Average daylight in September / Average sunshine in September - Coventry Lake, 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 18min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

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Average sunshine days in September
Coventry Lake, CT

Average sunshine days in September - Coventry Lake, CT
  • Average sunshine days in September: 14.6 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index in September
Coventry Lake, CT

Average UV index in September - Coventry Lake, 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
Coventry Lake, CT

Average cloud cover in September - Coventry Lake, 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 33).

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Average visibility in September
Coventry Lake, CT

Average visibility in September - Coventry Lake, CT
  • Average visibility in September: 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).

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Coventry Lake, Connecticut, USA

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