September weather forecast
Alpha, KY

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Weather in September

The first month of the autumn, September, is still a warm month in Alpha, Kentucky, with temperature in the range of an average high of 79.7°F (26.5°C) and an average low of 59.4°F (15.2°C).

Temperature

Alpha's September weather shows a modest shift in high-temperatures, falling from August's warm 85.3°F (29.6°C) to a still moderately hot 79.7°F (26.5°C). In Alpha, in September, the average low-temperature is a mild 59.4°F (15.2°C).

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Alpha, during September, the rain falls for 12.6 days and regularly aggregates up to 1.69" (43mm) of precipitation. Throughout the year, there are 162.3 rainfall days, and 28.23" (717mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Alpha, the average length of the day in September is 12h and 24min.
On the first day of the month, sunrise is at 6:11 am and sunset at 7:07 pm. On the last day of September, in Alpha, sunrise is at 6:35 am and sunset at 6:24 pm CDT.

Sunshine

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

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum daily UV index of 5 during September morphs into the following directions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Alpha in September?

The high-temperature in Alpha during September is 79.7°F (26.5°C) and the low-temperature is 59.4°F (15.2°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in August is evaluated at 95°F (35°C).

What is the average humidity in September in Alpha?

The average relative humidity in September in Alpha, Kentucky, is 77%.

How much does it rain in Alpha in September?

In Alpha, during September, the rain falls for 12.6 days and regularly aggregates up to 1.69" (43mm) of precipitation.

When it does not snow in Alpha?

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

Does it snow in Alpha in September?

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

How many hours of daylight does Alpha have in September?

In September, the average day length in Alpha, Kentucky, is 12h and 24min.

When are sunrise and sunset in September in Alpha?

On the first day of September, sunrise is at 6:11 am and sunset at 7:07 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 6:24 pm CDT.

How many hours of sunshine does Alpha have in September?

The average sunshine duration in September is 8.2h.

What is the UV index reading in September in Alpha?

In Alpha, 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 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
Alpha, KY

Average temperature in September - Alpha, KY
  • Average high temperature in September: 79.7°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (42.3°F).

  • Average low temperature in September: 59.4°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).

Average pressure in September
Alpha, KY

Average pressure in September - Alpha, 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 (29.97"Hg).

Average wind speed in September
Alpha, KY

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

The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in September
Alpha, KY

Average humidity in September - Alpha, KY
  • Average humidity in September: 77%

The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are June, August, October and November (76%).

Average rainfall in September
Alpha, KY

Average rainfall in September - Alpha, KY
  • Average rainfall in September: 1.69"

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

Average rainfall days in September
Alpha, KY

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

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is November (9.8 days).

Average snowfall in September
Alpha, KY

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

The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Alpha, KY

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

The month with the highest number of snowfall days is January (6.6 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
Alpha, KY

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

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

  • Average sunshine in September: 8h and 1min

The months with the most sunshine are June and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

Average sunshine days in September
Alpha, KY

Average sunshine days in September - Alpha, KY
  • Average sunshine days in September: 15 days

The month with the most sunshine days is November (18.5 days).
The months with the least sunshine days are May, June and July (11.3 days).

Average UV index in September
Alpha, KY

Average UV index in September - Alpha, 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).

Average cloud cover in September
Alpha, KY

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

The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in September
Alpha, KY

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

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

Alpha, Kentucky, USA

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