September weather forecast
New Preston, CT

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Weather in September

The first month of the autumn, September, is still a pleasant month in New Preston, Connecticut, with an average temperature fluctuating between 72.3°F (22.4°C) and 53.4°F (11.9°C).

Temperature

September brings a slight decrease in temperature, down from a warm 79.9°F (26.6°C) in August to an agreeable 72.3°F (22.4°C). New Preston, during the month of September, experiences an average low-temperature of 53.4°F (11.9°C).

Humidity

In New Preston, the average relative humidity in September is 80%.

Rainfall

In New Preston, during September, the rain falls for 13.7 days and regularly aggregates up to 2.36" (60mm) of precipitation. In New Preston, during the entire year, the rain falls for 161.7 days and collects up to 34.41" (874mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day in New Preston is 12h and 28min.
On the first day of the month, sunrise is at 6:20 am and sunset at 7:26 pm. On the last day of September, in New Preston, sunrise is at 6:49 am and sunset at 6:36 pm EDT.

Sunshine

In September, the average sunshine is 8.4h.

UV index

In New Preston, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 4 during September translates into these guidelines:
Be vigilant - Suggestions to stave off sun damage are provided. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Enhance your sun protection with tightly woven, yet airy clothing.
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Frequently asked questions

What is the average September temperature in New Preston?

The high-temperature, in September, in New Preston, is 72.3°F (22.4°C), while the low-temperature averages to 53.4°F (11.9°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, is evaluated at 87.8°F (31°C).

What is the average humidity in September in New Preston?

In September, the average relative humidity in New Preston, Connecticut, is 80%.

How much does it rain in New Preston in September?

In New Preston, in September, it is raining for 13.7 days, with typically 2.36" (60mm) of accumulated precipitation.

When it does not snow in New Preston?

In New Preston, snow does not fall in June through September.

Does it snow in New Preston in September?

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

What is the average length of the day in September in New Preston?

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

When is the sunrise / sunset in September in New Preston?

In September, on the first day of the month, sunrise is at 6:20 am and sunset at 7:26 pm. On the last day of the month, in New Preston, sunrise is at 6:49 am and sunset at 6:36 pm EDT.

How long on average sun shines in September in New Preston?

In September, the average sunshine duration in New Preston is 8.4h.

What is the UV index reading in September in New Preston?

The average daily maximum UV index in September in New Preston, Connecticut, is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from 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
New Preston, CT

Average temperature in September - New Preston, 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: 53.4°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in September
New Preston, CT

Average pressure in September - New Preston, 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
New Preston, CT

Average wind speed in September - New Preston, CT
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in September
New Preston, CT

Average humidity in September - New Preston, CT
  • Average humidity in September: 80%

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
New Preston, CT

Average rainfall in September - New Preston, CT
  • Average rainfall in September: 2.36"

The wettest month (with the highest rainfall) is July (3.7").
The driest month (with the least rainfall) is January (2.13").

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Average rainfall days in September
New Preston, CT

Average rainfall days in September - New Preston, CT
  • Average rainfall days in September: 13.7 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (7.7 days).

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Average snowfall in September
New Preston, CT

Average snowfall in September - New Preston, CT
  • Average snowfall in September: 0"

The month with the highest snowfall is February (5.16").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
New Preston, CT

Average snowfall days in September - New Preston, CT
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (10.5 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
New Preston, CT

Average daylight in September / Average sunshine in September - New Preston, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

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Average sunshine days in September
New Preston, CT

Average sunshine days in September - New Preston, CT
  • Average sunshine days in September: 13.9 days

The month with the most sunshine days is January (17.5 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index in September
New Preston, CT

Average UV index in September - New Preston, CT
  • Average UV index in September: 4

The month with the highest UV index is June (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
New Preston, CT

Average cloud cover in September - New Preston, CT
  • Average cloud cover in September: 41

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 37).

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Average visibility in September
New Preston, CT

Average visibility in September - New Preston, 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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New Preston, Connecticut, USA

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