September weather forecast
Middletown, CT

Weather in September

The first month of the autumn, September, is also a moderately hot month in Middletown, Connecticut, with an average temperature fluctuating between 56.3°F (13.5°C) and 73.6°F (23.1°C).

Temperature

In Middletown, the average high-temperature in September slightly decreases from a warm 81°F (27.2°C) in August to a still moderately hot 73.6°F (23.1°C). In September, the average low-temperature is 56.3°F (13.5°C).

Humidity

In Middletown, the average relative humidity in September is 77%.

Rainfall

September is the month with the least rainfall. Rain falls for 11.9 days and accumulates 1.89" (48mm) of precipitation.

Snowfall

In Middletown, snow does not fall in June through October.

Daylight

In September, the average length of the day in Middletown is 12h and 28min.
On the first day of September in Middletown, sunrise is at 6:16 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:34 pm EDT.

Sunshine

In September, the average sunshine in Middletown is 8.5h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Middletown?

The average high-temperature, in September, in Middletown, is 73.6°F (23.1°C), while the average low-temperature is 56.3°F (13.5°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is computed to be 86°F (30°C).

What is the average humidity in September in Middletown?

The average relative humidity in September in Middletown is 77%.

What is the driest month in Middletown?

The month with the least rainfall in Middletown is September, when the rain falls for 11.9 days and typically collects 1.89" (48mm) of precipitation.

How much does it rain in Middletown in September?

In Middletown, Connecticut, during September, the rain falls for 11.9 days and regularly aggregates up to 1.89" (48mm) of precipitation.

When it does not snow in Middletown?

In Middletown, Connecticut, snow does not fall in June through October.

What is the average length of the day in September in Middletown?

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

What time are sunrise and sunset in September in Middletown?

In September, on the first day of the month, sunrise is at 6:16 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:34 pm EDT.

How many hours of sunshine does Middletown have in September?

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

What is the UV index intensity in September in Middletown?

In September, the average daily maximum UV index in Middletown is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Middletown, CT

Average temperature in September - Middletown, CT
  • Average high temperature in September: 73.6°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in September: 56.3°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).

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Average pressure in September
Middletown, CT

Average pressure in September - Middletown, CT
  • Average pressure in September: 30.05"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
Middletown, CT

Average wind speed in September - Middletown, CT
  • Average wind speed in September: 6mph

The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in September
Middletown, CT

Average humidity in September - Middletown, CT
  • Average humidity in September: 77%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in September
Middletown, CT

Average rainfall in September - Middletown, CT
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days in September
Middletown, CT

Average rainfall days in September - Middletown, CT
  • Average rainfall days in September: 11.9 days

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is January (9.1 days).

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Average snowfall in September
Middletown, CT

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

The month with the highest snowfall is March (4.13").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Middletown, CT

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

The month with the highest number of snowfall days is February (8.3 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
Middletown, CT

Average daylight in September / Average sunshine in September - Middletown, CT
  • Average daylight in September: 12h and 28min

The month with the longest days is June (Average daylight: 15h and 8min).
The month with the shortest days is December (Average daylight: 9h and 14min).

  • Average sunshine in September: 8h and 30min

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in September
Middletown, CT

Average sunshine days in September - Middletown, CT
  • Average sunshine days in September: 14.7 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (11.3 days).

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Average UV index in September
Middletown, CT

Average UV index in September - Middletown, 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
Middletown, CT

Average cloud cover in September - Middletown, CT
  • Average cloud cover in September: 38

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in September
Middletown, CT

Average visibility in September - Middletown, CT
  • Average visibility in September: 6mi

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

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