September weather forecast
Summersville, KY

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Weather in September

The first month of the autumn, September, is still a warm month in Summersville, Kentucky, with an average temperature fluctuating between 79.2°F (26.2°C) and 59.9°F (15.5°C).

Temperature

A subtle shift in Summersville's weather is observed as August turns into September, with the average high temperature reducing from a warm 85.1°F (29.5°C) to a still moderately hot 79.2°F (26.2°C). The month of September records an average low-temperature of 59.9°F (15.5°C) in Summersville.

Humidity

In Summersville, the average relative humidity in September is 76%.

Rainfall

September is the month with the least rainfall in Summersville. Rain falls for 13.6 days and accumulates 2.32" (59mm) of precipitation.

Snowfall

In Summersville, snow does not fall in May through September.

Daylight

In Summersville, the average length of the day in September is 12h and 25min.
On the first day of September, sunrise is at 6:13 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 6:26 pm CDT.

Sunshine

In Summersville, the average sunshine in September is 8.2h.

UV index

In Summersville, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 5 in September translates into these instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

What is the usual temperature for Summersville in September?

The high-temperature, in September, in Summersville, is 79.2°F (26.2°C), while the low-temperature averages to 59.9°F (15.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 95°F (35°C).

What is the average humidity in September in Summersville?

The average relative humidity in September in Summersville, Kentucky, is 76%.

What is the driest month in Summersville?

The month with the least rainfall is September, when the rain falls for 13.6 days and typically collects 2.32" (59mm) of precipitation.

How much does it rain in Summersville in September?

In September, the rain falls for 13.6 days. Throughout September, 2.32" (59mm) of precipitation is accumulated.

When it does not snow in Summersville?

In Summersville, snow does not fall in May through September.

Does it snow in Summersville in September?

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

How many hours of daylight does Summersville have in September?

The average day length in September is 12h and 25min.

When is the sunrise / sunset in September in Summersville?

In September, on the first day of the month, sunrise is at 6:13 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 6:26 pm CDT.

How many hours of sunshine does Summersville have in September?

In Summersville, the average sunshine duration in September is 8.2h.

How high is the UV index in September in Summersville?

In Summersville, Kentucky, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents 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
Summersville, KY

Average temperature in September - Summersville, KY
  • Average high temperature in September: 79.2°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (41°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

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Average pressure in September
Summersville, KY

Average pressure in September - Summersville, KY
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in September
Summersville, KY

Average wind speed in September - Summersville, KY
  • Average wind speed in September: 5.2mph

The windiest months (with the highest average wind speed) are January and February (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in September
Summersville, KY

Average humidity in September - Summersville, KY
  • Average humidity in September: 76%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in September
Summersville, KY

Average rainfall in September - Summersville, KY
  • Average rainfall in September: 2.32"

The wettest month (with the highest rainfall) is July (3.82").
The driest month (with the least rainfall) is September (2.32").

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Average rainfall days in September
Summersville, KY

Average rainfall days in September - Summersville, KY
  • Average rainfall days in September: 13.6 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (10.5 days).

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Average snowfall in September
Summersville, KY

Average snowfall in September - Summersville, KY
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.09").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Summersville, KY

Average snowfall days in September - Summersville, KY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (7.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Summersville, KY

Average daylight in September / Average sunshine in September - Summersville, KY
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

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Average sunshine days in September
Summersville, KY

Average sunshine days in September - Summersville, KY
  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is October (17 days).
The month with the least sunshine days is July (10.8 days).

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Average UV index in September
Summersville, KY

Average UV index in September - Summersville, KY
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in September
Summersville, KY

Average cloud cover in September - Summersville, KY
  • Average cloud cover in September: 33

The months with the most cloud cover are January and February (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in September
Summersville, KY

Average visibility in September - Summersville, KY
  • Average visibility in September: 6mi

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

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Summersville, Kentucky, USA

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