September weather forecast
Southington, CT

Weather in September

September, the first month of the autumn in Southington, is still a warm month, with temperature in the range of an average high of 73.4°F (23°C) and an average low of 55.2°F (12.9°C).

Temperature

In September, the average high-temperature slightly decreases from 80.4°F (26.9°C) in August to a still warm 73.4°F (23°C). In September, the average low-temperature is 55.2°F (12.9°C).

Humidity

The average relative humidity in September is 78%.

Rainfall

September is the month with the least rainfall in Southington. Rain falls for 13.6 days and accumulates 2.24" (57mm) of precipitation.

Snowfall

June through September are months without snowfall in Southington.

Daylight

In September, the average length of the day in Southington is 12h and 28min.
On the first day of September in Southington, sunrise is at 6:17 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:35 pm EDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

In Southington, Connecticut, 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 exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 average humidity in September in Southington?

The average relative humidity in September in Southington is 78%.

What is the driest month in Southington?

The month with the least rainfall in Southington is September, when the rain falls for 13.6 days and typically collects 2.24" (57mm) of precipitation.

How much does it rain in Southington in September?

In September, in Southington, the rain falls for 13.6 days. Throughout September, 2.24" (57mm) of precipitation is accumulated.

When it does not snow in Southington?

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

Does it snow in Southington in September?

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

How many hours of daylight does Southington have in September?

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

When are sunrise and sunset in September in Southington?

On the first day of September in Southington, sunrise is at 6:17 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:35 pm EDT.

How long on average sun shines in September in Southington?

In September, the average sunshine duration is 8.5h.

What is the UV index reading in September in Southington?

In September, the average daily maximum UV index in Southington, Connecticut, is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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
Southington, CT

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

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in September: 55.2°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 (20.7°F).

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Average pressure in September
Southington, CT

Average pressure in September - Southington, 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
Southington, CT

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

The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in September
Southington, CT

Average humidity in September - Southington, CT
  • Average humidity in September: 78%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in September
Southington, CT

Average rainfall in September - Southington, CT
  • Average rainfall in September: 2.24"

The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is September (2.24").

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Average rainfall days in September
Southington, CT

Average rainfall days in September - Southington, CT
  • Average rainfall days in September: 13.6 days

The months with the highest number of rainy days are May and July (18.3 days).
The month with the least rainy days is February (9.3 days).

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Average snowfall in September
Southington, CT

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

The month with the highest snowfall is February (5.12").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Southington, CT

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

The month with the highest number of snowfall days is February (9.3 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
Southington, CT

Average daylight in September / Average sunshine in September - Southington, 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 13min).

  • Average sunshine in September: 8h and 30min

The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in September
Southington, CT

Average sunshine days in September - Southington, CT
  • Average sunshine days in September: 14.3 days

The month with the most sunshine days is January (16.7 days).
The month with the least sunshine days is June (10 days).

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Average UV index in September
Southington, CT

Average UV index in September - Southington, 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
Southington, CT

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

The months with the most cloud cover are February and March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in September
Southington, CT

Average visibility in September - Southington, CT
  • Average visibility in September: 5mi

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

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