September weather forecast
Old Washington, KY

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Weather in September

September, the first month of the autumn in Old Washington, is still a warm month, with an average temperature varying between 57.7°F (14.3°C) and 77.9°F (25.5°C).

Temperature

The transition into September involves a small decrease in the average high-temperature, dipping slightly from a warm 84.2°F (29°C) in August to a still moderately hot 77.9°F (25.5°C). Old Washington experiences an average low-temperature of 57.7°F (14.3°C) in the month of September.

Humidity

The months with the lowest humidity in Old Washington are April, August through November, with an average relative humidity of 76%.

Rainfall

September is the month with the least rainfall. Rain falls for 12.6 days and accumulates 1.65" (42mm) of precipitation.

Snowfall

In Old Washington, snow does not fall in May through September.

Daylight

In Old Washington, the average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 7:05 am and sunset at 8:04 pm. On the last day of September, sunrise is at 7:30 am and sunset at 7:19 pm EDT.

Sunshine

The average sunshine in September is 8.3h.

UV index

In September, the average daily maximum UV index 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: A daily high UV index of 4 in September leads to these guidelines:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. When the Sun is at its strongest around midday, find shade and limit exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.

Frequently asked questions

What are the temperatures in September?

During September, Old Washington experiences an average high-temperature of 77.9°F (25.5°C) and a low-temperature of 57.7°F (14.3°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is appraised at 93.2°F (34°C).

What is the least humid month?

April, August through November, with an average relative humidity of 76%, are the least humid months.

What is the average humidity in September?

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

What is the driest month?

The month with the least rainfall is September, when the rain falls for 12.6 days and typically collects 1.65" (42mm) of precipitation.

How many days does it rain in September?

In Old Washington, in September, it is raining for 12.6 days, with typically 1.65" (42mm) of accumulated precipitation.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Old Washington have in September?

In Old Washington, the average day length in September is 12h and 25min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 7:05 am and sunset at 8:04 pm. On the last day of the month, in Old Washington, sunrise is at 7:30 am and sunset at 7:19 pm EDT.

How many hours of sunshine does Old Washington have in September?

The average sunshine duration in September is 8.3h.

What is the UV index reading in September?

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's 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
Old Washington, KY

Average temperature in September - Old Washington, KY
  • Average high temperature in September: 77.9°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (37.6°F).

  • Average low temperature in September: 57.7°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 (24.3°F).

Average pressure in September
Old Washington, KY

Average pressure in September - Old Washington, KY
  • Average pressure in September: 30.04"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
Old Washington, KY

Average wind speed in September - Old Washington, KY
  • Average wind speed in September: 5.6mph

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in September
Old Washington, KY

Average humidity in September - Old Washington, KY
  • Average humidity in September: 76%

The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are April, August, September, October and November (76%).

Average rainfall in September
Old Washington, KY

Average rainfall in September - Old Washington, KY
  • Average rainfall in September: 1.65"

The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.65").

Average rainfall days in September
Old Washington, KY

Average rainfall days in September - Old Washington, KY
  • Average rainfall days in September: 12.6 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is November (10.6 days).

Average snowfall in September
Old Washington, KY

Average snowfall in September - Old Washington, KY
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Old Washington, KY

Average snowfall days in September - Old Washington, KY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Old Washington, KY

Average daylight in September / Average sunshine in September - Old Washington, 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 2min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in September
Old Washington, KY

Average sunshine days in September - Old Washington, KY
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is October (17.7 days).
The month with the least sunshine days is May (10 days).

Average UV index in September
Old Washington, KY

Average UV index in September - Old Washington, 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, November and December (UV index 2).

Average cloud cover in September
Old Washington, KY

Average cloud cover in September - Old Washington, KY
  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in September
Old Washington, KY

Average visibility in September - Old Washington, KY
  • Average visibility in September: 5mi

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

Old Washington, Kentucky, USA

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