September weather forecast
Keene, KY

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Keene, Kentucky, with an average temperature fluctuating between 78.1°F (25.6°C) and 59.2°F (15.1°C).

Temperature

The average high-temperature shows a slight dip in September, from August's moderately hot 84.2°F (29°C) to a still warm 78.1°F (25.6°C). The average temperature during September nights dips to a moderate 59.2°F (15.1°C).

Humidity

In September, the average relative humidity is 76%.

Rainfall

The months with the least rainfall are September and October Rain falls for 12.6 days and accumulates 2.05" (52mm) of rain.

Snowfall

May through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 7:09 am and sunset at 8:07 pm. On the last day of September, in Keene, sunrise is at 7:33 am and sunset at 7:22 pm EDT.

Sunshine

In Keene, the average sunshine in September is 8.1h.

UV index

In Keene, Kentucky, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high UV index of 5 in September translates into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Frequently asked questions

What are September temperatures?

Keene in September has an average high-temperature of 78.1°F (25.6°C) and an average low-temperature of 59.2°F (15.1°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is estimated at 93.2°F (34°C).

What is the average humidity in September?

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

What is the driest month?

September and October are months with the least rain when the rain falls for 12.6 days and typically aggregates up to 2.05" (52mm) of rain.

How many days does it rain in September?

In Keene, during September, the rain falls for 12.6 days and regularly aggregates up to 2.05" (52mm) of precipitation.

When it does not snow?

In Keene, snow does not fall in May through October.

What is the average length of the day in September?

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

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 7:09 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 7:22 pm EDT.

How many hours of sunshine does Keene have in September?

In Keene, the average sunshine duration in September is 8.1h.

How high is the UV index in September?

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Keene, KY

Average temperature in September - Keene, KY
  • Average high temperature in September: 78.1°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (39.2°F).

  • Average low temperature in September: 59.2°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in September
Keene, KY

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

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in September
Keene, KY

Average wind speed in September - Keene, KY
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in September
Keene, KY

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

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (75%).

Average rainfall in September
Keene, KY

Average rainfall in September - Keene, KY
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is May (3.23").
The driest months (with the least rainfall) are September and October (2.05").

Average rainfall days in September
Keene, KY

Average rainfall days in September - Keene, KY
  • Average rainfall days in September: 12.6 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (9.9 days).

Average snowfall in September
Keene, KY

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

The month with the highest snowfall is February (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Keene, KY

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

The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Keene, 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 36min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in September
Keene, KY

Average sunshine days in September - Keene, KY
  • Average sunshine days in September: 15.3 days

The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is May (11.1 days).

Average UV index in September
Keene, KY

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

Average cloud cover in September
Keene, KY

Average cloud cover in September - Keene, KY
  • Average cloud cover in September: 34

The months with the most cloud cover are January and February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in September
Keene, KY

Average visibility in September - Keene, 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).

Keene, Kentucky, USA

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