September weather forecast
Big Sandy Junction, KY

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Weather in September

September, the first month of the autumn in Big Sandy Junction, is also a moderately hot month, with an average temperature varying between 58.1°F (14.5°C) and 79.3°F (26.3°C).

Temperature

Big Sandy Junction in September experiences a gentle temperature dip, with average high-temperatures reducing from 85.6°F (29.8°C) in August to a still warm 79.3°F (26.3°C). The nighttime temperature, during September, averages of 58.1°F (14.5°C).

Humidity

In September, the average relative humidity is 75%.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.4 days and typically collects 1.42" (36mm) of precipitation.

Snowfall

In Big Sandy Junction, snow does not fall in May through September.

Daylight

The average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 7:00 am and sunset at 7:59 pm. On the last day of September, sunrise is at 7:25 am and sunset at 7:14 pm EDT.

Sunshine

The average sunshine in September is 8.2h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 4 during September translates into the following directions:
Ensure safety - Sun damage prevention is strongly urged. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

The high-temperature during September is 79.3°F (26.3°C) and the low-temperature is 58.1°F (14.5°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is computed to be 96.8°F (36°C).

What is the average humidity in September?

In September, the average relative humidity is 75%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 11.4 days and accumulates 1.42" (36mm) of precipitation.

How much does it rain in September?

In September, the rain falls for 11.4 days. Throughout September, 1.42" (36mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

In Big Sandy Junction, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Big Sandy Junction have in September?

In Big Sandy Junction, the average day length in September is 12h and 25min.

When is the sunrise / sunset in September?

On the first day of September in Big Sandy Junction, sunrise is at 7:00 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:14 pm EDT.

How many hours of sunshine does Big Sandy Junction have in September?

In Big Sandy Junction, the average sunshine duration in September is 8.2h.

How high is the UV index in September?

The average daily maximum UV index in September in Big Sandy Junction is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
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
Big Sandy Junction, KY

Average temperature in September - Big Sandy Junction, KY
  • Average high temperature in September: 79.3°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 58.1°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).

Average pressure in September
Big Sandy Junction, KY

Average pressure in September - Big Sandy Junction, KY
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in September
Big Sandy Junction, KY

Average wind speed in September - Big Sandy Junction, KY
  • Average wind speed in September: 4.6mph

The windiest months (with the highest average wind speed) are January and February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in September
Big Sandy Junction, KY

Average humidity in September - Big Sandy Junction, KY
  • Average humidity in September: 75%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (74%).

Average rainfall in September
Big Sandy Junction, KY

Average rainfall in September - Big Sandy Junction, KY
  • Average rainfall in September: 1.42"

The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is September (1.42").

Average rainfall days in September
Big Sandy Junction, KY

Average rainfall days in September - Big Sandy Junction, KY
  • Average rainfall days in September: 11.4 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (9.5 days).

Average snowfall in September
Big Sandy Junction, KY

Average snowfall in September - Big Sandy Junction, KY
  • Average snowfall in September: 0"

The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Big Sandy Junction, KY

Average snowfall days in September - Big Sandy Junction, KY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (11 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Big Sandy Junction, KY

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in September
Big Sandy Junction, KY

Average sunshine days in September - Big Sandy Junction, KY
  • Average sunshine days in September: 15.9 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (10.2 days).

Average UV index in September
Big Sandy Junction, KY

Average UV index in September - Big Sandy Junction, KY
  • Average UV index in September: 4

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).

Average cloud cover in September
Big Sandy Junction, KY

Average cloud cover in September - Big Sandy Junction, KY
  • Average cloud cover in September: 35

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in September
Big Sandy Junction, KY

Average visibility in September - Big Sandy Junction, KY
  • Average visibility in September: 5mi

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

Big Sandy Junction, Kentucky, USA

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