September weather forecast and climate
Bethany, KY

The first month of the autumn, September, is also a moderately hot month in Bethany, Kentucky, with temperature in the range of an average high of 79.5°F (26.4°C) and an average low of 57.4°F (14.1°C).

Temperature

In Bethany, the average high-temperature marginally drops, from a warm 85.6°F (29.8°C) in August, to a still moderately hot 79.5°F (26.4°C). In September, in Bethany, the average low-temperature is 57.4°F (14.1°C).

Humidity

In September, the average relative humidity is 76%.

Rainfall

The month with the least rainfall in Bethany is September when the rain falls for 13.1 days and typically collects 1.93" (49mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in September is 12.4h.

Sunshine

In Bethany, the average sunshine is 8.3h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Bethany?

In Bethany, in September, the average high-temperature is 79.5°F (26.4°C), and the average low-temperature is 57.4°F (14.1°C).

What is the average humidity in September in Bethany?

In September, the average relative humidity is 76%.

How much does it rain in Bethany in September?

In Bethany, during September, the rain falls for 13.1 days and regularly aggregates up to 1.93" (49mm) of precipitation.

What is the driest month in Bethany?

September is the month with the least rainfall in Bethany. Rain falls for 13.1 days and accumulates 1.93" (49mm) of precipitation.

Does it snow in Bethany in September?

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

When it does not snow in Bethany?

May through September are months without snowfall in Bethany, Kentucky.

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

The average length of the day in September in Bethany is 12.4h.

How long on average sun shines in September in Bethany?

In September, the average sunshine is 8.3h.

How high is the UV index in September in Bethany?

In September, the average daily maximum UV index in Bethany, Kentucky, is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV rays.
Average temperature in September - Bethany, KY
  • Average high temperature in September: 79.5°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (40.3°F).

  • Average low temperature in September: 57.4°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in September - Bethany, KY
  • Average pressure in September: 30.05"

Months with the highest atmospheric pressure are January and November (30.16").
The month with the lowest atmospheric pressure is June (29.98").

Average wind speed in September - Bethany, KY
  • Average wind speed in September: 4.5mph

The windiest months (with the highest average wind speed) are January and February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

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

The month with the highest relative humidity is February (80%).
Months with the lowest relative humidity are August and November (74%).

Average rainfall in September - Bethany, KY
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is February (3.9").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in September - Bethany, KY
  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (11.5 days).

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

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

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

The month with the highest number of snowfall days is January (11.7 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Bethany, KY
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in September: 8.3h

Months with the most sunshine are June and August (Average sunshine: 10.1h).
The month with the least sunshine is January (Average sunshine: 4.1h).

Average sunshine days in September - Bethany, KY
  • Average sunshine days in September: 15.1 days

The month with the most sunshine days is October (15.8 days).
The month with the least sunshine days is February (9 days).

Average UV index in September - Bethany, KY
  • Average UV index in September: 4

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

Average cloud cover in September - Bethany, KY
  • Average cloud cover in September: 35

Months with the most cloud cover are January and February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in September - Bethany, KY
  • Average visibility in September: 5mi

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