September weather forecast
East Hartford, CT

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Weather in September

September brings the onset of fall in East Hartford, marking a period of transition from summer to winter. September sees a drop in maximum temperature from 81°F (27.2°C) in August to 73.4°F (23°C), and a slight rise in precipitation levels to 1.77" (45mm). With a relative humidity of 77% and extended daylight hours, the city enjoys a comfortable month weather-wise. The weather gets progressively colder into October, with this month providing the perfect platform for the shift. September stands perfect for city walks and exploration, with mild weather and picturesque fall foliage.

Temperature

In East Hartford, entering September brings a subtle temperature decrement, reducing from August's moderately hot 81°F (27.2°C) to a still warm 73.4°F (23°C). Throughout the month of September, East Hartford witnesses an average temperature of 55.2°F (12.9°C).

Humidity

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

Rainfall

The month with the least rainfall is September, when the rain falls for 12.5 days and typically collects 1.77" (45mm) of precipitation.

Snowfall

In East Hartford, Connecticut, snow does not fall in June through September.

Daylight

The average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:17 am and sunset at 7:23 pm. On the last day of September, sunrise is at 6:47 am and sunset at 6:33 pm EDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

In September, the average daily maximum UV index in East Hartford, Connecticut, is 4. A UV Index of 3 to 5 symbolizes 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:
Take precautions - Protection against sun damage is advised. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. 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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Frequently asked questions

What are the temperatures in East Hartford in September?

During September, East Hartford experiences an average high-temperature of 73.4°F (23°C) and a low-temperature of 55.2°F (12.9°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 86°F (30°C).

What is the average humidity in September in East Hartford?

In September, the average relative humidity is 77%.

What is the driest month in East Hartford?

September is the month with the least rainfall in East Hartford, Connecticut. Rain falls for 12.5 days and accumulates 1.77" (45mm) of precipitation.

How much does it rain in East Hartford in September?

In East Hartford, Connecticut, in September, during 12.5 rainfall days, 1.77" (45mm) of precipitation is typically accumulated.

When it does not snow in East Hartford?

In East Hartford, Connecticut, snow does not fall in June through September.

Does it snow in East Hartford in September?

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

How many hours of daylight does East Hartford have in September?

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

What time are sunrise and sunset in September in East Hartford?

On the first day of September in East Hartford, Connecticut, sunrise is at 6:17 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:33 pm EDT.

How long on average sun shines in September in East Hartford?

In September, the average sunshine duration in East Hartford, Connecticut, is 8.7h.

What is the UV index reading in September in East Hartford?

In East Hartford, Connecticut, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
East Hartford, CT

Average temperature in September - East Hartford, CT
  • Average high temperature in September: 73.4°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (32.9°F).

  • Average low temperature in September: 55.2°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

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Average pressure in September
East Hartford, CT

Average pressure in September - East Hartford, 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
East Hartford, CT

Average wind speed in September - East Hartford, CT
  • Average wind speed in September: 5.8mph

The windiest months (with the highest average wind speed) are January and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in September
East Hartford, CT

Average humidity in September - East Hartford, CT
  • Average humidity in September: 77%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in September
East Hartford, CT

Average rainfall in September - East Hartford, CT
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days in September
East Hartford, CT

Average rainfall days in September - East Hartford, CT
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (10 days).

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Average snowfall in September
East Hartford, CT

Average snowfall in September - East Hartford, CT
  • Average snowfall in September: 0"

The month with the highest snowfall is February (4.8").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
East Hartford, CT

Average snowfall days in September - East Hartford, CT
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (8.5 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
East Hartford, CT

Average daylight in September / Average sunshine in September - East Hartford, 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 months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in September
East Hartford, CT

Average sunshine days in September - East Hartford, 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 (11.2 days).

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Average UV index in September
East Hartford, CT

Average UV index in September - East Hartford, CT
  • Average UV index in September: 4

The months with the highest UV index are June and July (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
East Hartford, CT

Average cloud cover in September - East Hartford, CT
  • Average cloud cover in September: 37

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in September
East Hartford, CT

Average visibility in September - East Hartford, CT
  • Average visibility in September: 5mi

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

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East Hartford, Connecticut, USA

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