September weather forecast
Thompson, CT

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Weather in September

The first month of the autumn, September, is also an agreeable month in Thompson, Connecticut, with an average temperature ranging between max 72.7°F (22.6°C) and min 54.9°F (12.7°C).

Temperature

The commencement of September indicates a gentle shift in the average high-temperature, receding from August's warm 80.1°F (26.7°C) to an agreeable 72.7°F (22.6°C). September in Thompson sees the temperature falling to a mean low of 54.9°F (12.7°C).

Humidity

February, September and October, with an average relative humidity of 79%, are the most humid months in Thompson, Connecticut.

Rainfall

September is the month with the least rainfall. Rain falls for 10.9 days and accumulates 1.14" (29mm) of precipitation.

Snowfall

June through September are months without snowfall in Thompson.

Daylight

The average length of the day in September in Thompson is 12h and 28min.
On the first day of September in Thompson, Connecticut, sunrise is at 6:13 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:30 pm EDT.

Sunshine

The average sunshine in September is 8.1h.

UV index

In Thompson, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

What is the average September temperature in Thompson?

In September, the average high-temperature and low-temperature in Thompson are 72.7°F (22.6°C) and 54.9°F (12.7°C) respectively. In July, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is appraised at 87.8°F (31°C).

What is the most humid month in Thompson?

February, September and October, with an average relative humidity of 79%, are most humid months in Thompson.

What is the average humidity in September in Thompson?

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

What is the driest month in Thompson?

September is the month with the least rainfall. Rain falls for 10.9 days and accumulates 1.14" (29mm) of precipitation.

How much does it rain in Thompson in September?

In September, the rain falls for 10.9 days. Throughout September, 1.14" (29mm) of precipitation is accumulated.

When it does not snow in Thompson?

June through September are months without snowfall in Thompson, Connecticut.

Does it snow in Thompson in September?

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

How many hours of daylight does Thompson have in September?

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

When is the sunrise / sunset in September in Thompson?

On the first day of September in Thompson, sunrise is at 6:13 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:30 pm EDT.

How many hours of sunshine does Thompson have in September?

In September, the average sunshine duration is 8.1h.

What is the UV index reading in September in Thompson?

In September, the average daily maximum UV index is 4. A UV Index value 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
Thompson, CT

Average temperature in September - Thompson, CT
  • Average high temperature in September: 72.7°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 (33.1°F).

  • Average low temperature in September: 54.9°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 (21°F).

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Average pressure in September
Thompson, CT

Average pressure in September - Thompson, CT
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Thompson, CT

Average wind speed in September - Thompson, CT
  • Average wind speed in September: 6.4mph

The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in September
Thompson, CT

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

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

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Average rainfall in September
Thompson, CT

Average rainfall in September - Thompson, CT
  • Average rainfall in September: 1.14"

The wettest month (with the highest rainfall) is April (2.4").
The driest month (with the least rainfall) is September (1.14").

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Average rainfall days in September
Thompson, CT

Average rainfall days in September - Thompson, CT
  • Average rainfall days in September: 10.9 days

The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is February (7 days).

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Average snowfall in September
Thompson, CT

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

The month with the highest snowfall is March (3.19").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Thompson, CT

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

The month with the highest number of snowfall days is January (6.8 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
Thompson, CT

Average daylight in September / Average sunshine in September - Thompson, 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 1min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in September
Thompson, CT

Average sunshine days in September - Thompson, CT
  • Average sunshine days in September: 17.2 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (13 days).

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Average UV index in September
Thompson, CT

Average UV index in September - Thompson, 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
Thompson, CT

Average cloud cover in September - Thompson, CT
  • Average cloud cover in September: 41

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

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Average visibility in September
Thompson, CT

Average visibility in September - Thompson, 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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Thompson, Connecticut, USA

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