September weather forecast and climate
Crossville, AL

Weather in September

The first month of the autumn, September, is still a warm month in Crossville, Alabama, with average temperature ranging between max 82.2°F (27.9°C) and min 62.6°F (17°C).

Temperature

In September, the average high-temperature is essentially the same as in August - a warm 82.2°F (27.9°C). In Crossville, the average low-temperature is 62.6°F (17°C).

Heat index

The average heat index is evaluated at a tropical 88°F (31.1°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, pregnancy, wind). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in Crossville is 75%.

Rainfall

September is the month with the least rainfall. Rain falls for 13.3 days and accumulates 2.48" (63mm) of precipitation.

Snowfall

In Crossville snow does not fall in April through October.

Daylight

In Crossville, the average length of the day in September is 12.4h.

Sunshine

The average sunshine in Crossville is 8.5h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Crossville?

In Crossville, in September, the average high-temperature is 82.2°F (27.9°C), and the average low-temperature is 62.6°F (17°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), that combines relative humidity and air temperature, is appraised at 88°F (31.1°C).

What is the average humidity in September in Crossville?

The average relative humidity in September is 75%.

How many days does it rain in September in Crossville?

In Crossville, during September, the rain falls for 13.3 days and regularly aggregates up to 2.48" (63mm) of precipitation.

What is the driest month in Crossville?

The month with the least rainfall is September when the rain falls for 13.3 days and typically collects 2.48" (63mm) of precipitation.

When it does not snow in Crossville?

April through October are months without snowfall in Crossville.

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

In Crossville, Alabama, the average length of the day in September is 12.4h.

How many hours of sunshine does Crossville have in September?

The average sunshine in September is 8.5h.

What is the UV index reading in September in Crossville?

In Crossville, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV radiation.

Average temperature in September
Crossville, AL

Average temperature in September - Crossville, AL
  • Average high temperature in September: 82.2°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (48.6°F).

  • Average low temperature in September: 62.6°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

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Average pressure in September
Crossville, AL

Average pressure in September - Crossville, AL
  • Average pressure in September: 30.02"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.98").

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Average wind speed in September
Crossville, AL

Average wind speed in September - Crossville, AL
  • Average wind speed in September: 4.9mph

The windiest months (with the highest average wind speed) are February and March (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity in September
Crossville, AL

Average humidity in September - Crossville, AL
  • Average humidity in September: 75%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in September
Crossville, AL

Average rainfall in September - Crossville, AL
  • Average rainfall in September: 2.48"

The wettest months (with the highest rainfall) are February and December (4.65").
The driest month (with the least rainfall) is September (2.48").

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Average rainfall days in September
Crossville, AL

Average rainfall days in September - Crossville, AL
  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (9.5 days).

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Average snowfall in September
Crossville, AL

Average snowfall in September - Crossville, AL
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.79").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Crossville, AL

Average snowfall days in September - Crossville, AL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (2 days).
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
Crossville, AL

Average daylight in September / Average sunshine in September - Crossville, AL
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in September: 8.5h

The month with the most sunshine is June (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.7h).

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Average sunshine days in September
Crossville, AL

Average sunshine days in September - Crossville, AL
  • Average sunshine days in September: 14.4 days

The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (10.2 days).

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Average UV index in September
Crossville, AL

Average UV index in September - Crossville, AL
  • Average UV index in September: 5

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

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Average cloud cover in September
Crossville, AL

Average cloud cover in September - Crossville, AL
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in September
Crossville, AL

Average visibility in September - Crossville, AL
  • Average visibility in September: 6mi

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

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