September weather forecast and climate
Middlefield, CT

Weather in September

September, the first month of the autumn, in Middlefield, is still a warm month, with average temperature fluctuating between 73.6°F (23.1°C) and 56.3°F (13.5°C).

Temperature

In September, the average high-temperature slightly decreases, from a warm 80.8°F (27.1°C) in August, to a still moderately hot 73.6°F (23.1°C). In September, in Middlefield, Connecticut, the average low-temperature is 56.3°F (13.5°C).

Humidity

In Middlefield, Connecticut, the average relative humidity is 77%.

Rainfall

The month with the least rainfall in Middlefield is September when the rain falls for 8.5 days and typically collects 0.55" (14mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in September is 12.5h.

Sunshine

In Middlefield, Connecticut, the average sunshine in September is 8.4h.

UV index

In Middlefield, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Middlefield?

In Middlefield, Connecticut, in September, the average high-temperature is 73.6°F (23.1°C), and the average low-temperature is 56.3°F (13.5°C).

What is the average humidity in September in Middlefield?

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

How much does it rain in Middlefield in September?

In Middlefield, Connecticut, in September, it is raining for 8.5 days, with typically 0.55" (14mm) of accumulated precipitation.

What is the driest month in Middlefield?

The month with the least rainfall is September when the rain falls for 8.5 days and typically collects 0.55" (14mm) of precipitation.

When it does not snow in Middlefield?

June through October are months without snowfall in Middlefield.

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

The average length of the day in September in Middlefield is 12.5h.

How many hours of sunshine does Middlefield have in September?

The average sunshine in September is 8.4h.

What is the UV index reading in September in Middlefield?

In Middlefield, Connecticut, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV radiation.

Average temperature in September
Middlefield, CT

Average temperature in September - Middlefield, 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 (22.3°F).

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Average pressure in September
Middlefield, CT

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

The month with the highest atmospheric pressure is November (30.09").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in September
Middlefield, CT

Average wind speed in September - Middlefield, 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
Middlefield, CT

Average humidity in September - Middlefield, 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
Middlefield, CT

Average rainfall in September - Middlefield, CT
  • Average rainfall in September: 0.55"

The wettest months (with the highest rainfall) are July and December (1.26").
The driest month (with the least rainfall) is September (0.55").

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Average rainfall days in September
Middlefield, CT

Average rainfall days in September - Middlefield, CT
  • Average rainfall days in September: 8.5 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (6.1 days).

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Average snowfall in September
Middlefield, CT

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

The month with the highest snowfall is March (1.5").
Months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Middlefield, CT

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

The month with the highest number of snowfall days is February (6.3 days).
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
Middlefield, CT

Average daylight in September / Average sunshine in September - Middlefield, CT
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in September: 8.4h

Months with the most sunshine are July and August (Average sunshine: 10.3h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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Average sunshine days in September
Middlefield, CT

Average sunshine days in September - Middlefield, CT
  • Average sunshine days in September: 18.8 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (15.3 days).

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Average UV index in September
Middlefield, CT

Average UV index in September - Middlefield, CT
  • Average UV index in September: 4

Months with the highest UV index are June, July and August (UV index 6).
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
Middlefield, CT

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

Months with the most cloud cover are February and March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in September
Middlefield, CT

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

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

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