September weather forecast
Altro, KY

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Altro, Kentucky, with an average temperature ranging between max 78.3°F (25.7°C) and min 56.3°F (13.5°C).

Temperature

The beginning of September brings a minor change in the average high-temperature, shifting from a warm 84.2°F (29°C) in August to a still moderately hot 78.3°F (25.7°C). Throughout September, Altro braces for a considerable drop from daytime highs, with an average low-temperature of 56.3°F (13.5°C).

Humidity

In September, the average relative humidity in Altro, Kentucky, is 77%.

Rainfall

The month with the least rainfall is September, when the rain falls for 13.4 days and typically collects 1.46" (37mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Altro, the average length of the day in September is 12h and 25min.
On the first day of September, sunrise is at 7:04 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:17 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 estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 4 during September leads to these instructions:
Adopt protective measures - It is advised to guard against sun damage. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Stay sun-safe with clothing that is both closely woven and worn loosely.
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Frequently asked questions

What is the usual temperature for Altro in September?

In September, the average high-temperature and low-temperature are 78.3°F (25.7°C) and 56.3°F (13.5°C) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in August is appraised at 93.2°F (34°C).

What is the average humidity in September in Altro?

In September, the average relative humidity is 77%.

What is the driest month in Altro?

September is the month with the least rainfall in Altro, Kentucky. Rain falls for 13.4 days and accumulates 1.46" (37mm) of precipitation.

How many days does it rain in September in Altro?

In September, the rain falls for 13.4 days. Throughout September, 1.46" (37mm) of precipitation is accumulated.

When it does not snow in Altro?

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

Does it snow in Altro in September?

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

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

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

When is the sunrise / sunset in September in Altro?

On the first day of September in Altro, sunrise is at 7:04 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:17 pm EDT.

How many hours of sunshine does Altro have in September?

In September, the average sunshine duration in Altro is 8.3h.

What is the UV index reading in September in Altro?

In September, the average daily maximum UV index in Altro, Kentucky, is 4. A UV Index of 3 to 5 symbolizes a medium health risk 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
Altro, KY

Average temperature in September - Altro, KY
  • Average high temperature in September: 78.3°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (40.6°F).

  • Average low temperature in September: 56.3°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (27°F).

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Average pressure in September
Altro, KY

Average pressure in September - Altro, KY
  • Average pressure in September: 30.05"Hg

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

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Average wind speed in September
Altro, KY

Average wind speed in September - Altro, KY
  • Average wind speed in September: 4.2mph

The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (4mph).

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Average humidity in September
Altro, KY

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

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is November (75%).

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Average rainfall in September
Altro, KY

Average rainfall in September - Altro, KY
  • Average rainfall in September: 1.46"

The wettest month (with the highest rainfall) is February (2.76").
The driest month (with the least rainfall) is September (1.46").

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Average rainfall days in September
Altro, KY

Average rainfall days in September - Altro, KY
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (10.5 days).

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Average snowfall in September
Altro, KY

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

The month with the highest snowfall is February (3.15").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Altro, KY

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

The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

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

  • Average sunshine in September: 8h and 2min

The months with the most sunshine are June, July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in September
Altro, KY

Average sunshine days in September - Altro, KY
  • Average sunshine days in September: 14 days

The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is May (9.7 days).

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Average UV index in September
Altro, KY

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

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

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Average cloud cover in September
Altro, KY

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

The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in September
Altro, KY

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

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

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Altro, Kentucky, USA

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