September weather forecast and climate
Valley Head, AL

Weather in September

The first month of the autumn, September, is still a warm month in Valley Head, Alabama, with average temperature fluctuating between 81.9°F (27.7°C) and 61.3°F (16.3°C).

Temperature

In Valley Head, Alabama, the average high-temperature slightly decreases, from a hot 87.4°F (30.8°C) in August, to a moderately hot 81.9°F (27.7°C). In Valley Head, in September, the average low-temperature is 61.3°F (16.3°C).

Heat index

The average heat index in September is estimated at a hot 87.4°F (30.8°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity 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 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, differences in body mass, height, and shape, metabolic differences). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity in September is 76%.

Rainfall

The month with the least rainfall in Valley Head is September when the rain falls for 12.2 days and typically collects 1.85" (47mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in September is 12.4h.

Sunshine

In September, the average sunshine is 8.5h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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.
[Resources]

FAQ

What is the temperature in September in Valley Head?

The average high-temperature, in September, is 81.9°F (27.7°C), while the average low-temperature is 61.3°F (16.3°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), that calculates temperature value influenced by the moisture in the air, is calculated to 87.4°F (30.8°C).

What is the average humidity in September in Valley Head?

In Valley Head, the average relative humidity in September is 76%.

How many days does it rain in September in Valley Head?

In Valley Head, in September, during 12.2 rainfall days, 1.85" (47mm) of precipitation is typically accumulated.

What is the driest month in Valley Head?

The month with the least rainfall is September when the rain falls for 12.2 days and typically collects 1.85" (47mm) of precipitation.

When it does not snow in Valley Head?

In Valley Head, Alabama, snow does not fall in May through October.

What is the average length of the day in September in Valley Head?

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

How many hours of sunshine does Valley Head have in September?

In Valley Head, the average sunshine in September is 8.5h.

What is the UV index reading in September in Valley Head?

The average daily maximum UV index in September in Valley Head is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in September
Valley Head, AL

Average temperature in September - Valley Head, AL
  • Average high temperature in September: 81.9°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 (47.1°F).

  • Average low temperature in September: 61.3°F

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).

[Resources]

Average pressure in September
Valley Head, AL

Average pressure in September - Valley Head, AL
  • Average pressure in September: 30.03"

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

[Resources]

Average wind speed in September
Valley Head, AL

Average wind speed in September - Valley Head, AL
  • Average wind speed in September: 4.2mph

The windiest month (with the highest average wind speed) is February (6.9mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

[Resources]

Average humidity in September
Valley Head, AL

Average humidity in September - Valley Head, AL
  • Average humidity in September: 76%

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

[Resources]

Average rainfall in September
Valley Head, AL

Average rainfall in September - Valley Head, AL
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is July (3.31").
The driest month (with the least rainfall) is September (1.85").

[Resources]

Average rainfall days in September
Valley Head, AL

Average rainfall days in September - Valley Head, AL
  • Average rainfall days in September: 12.2 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).

[Resources]

Average snowfall in September
Valley Head, AL

Average snowfall in September - Valley Head, AL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.47").
Months with the least snowfall are May, June, July, August, September and October (0").

[Resources]

Average snowfall days in September
Valley Head, AL

Average snowfall days in September - Valley Head, AL
  • Average snowfall days in September: 0 days

Months with the highest number of snowfall days are January and February (1.8 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

[Resources]

Average daylight in September /
Average sunshine in September
Valley Head, AL

Average daylight in September / Average sunshine in September - Valley Head, 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

Months with the most sunshine are June and July (Average sunshine: 10.4h).
The month with the least sunshine is December (Average sunshine: 5h).

[Resources]

Average sunshine days in September
Valley Head, AL

Average sunshine days in September - Valley Head, AL
  • Average sunshine days in September: 16 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (10.1 days).

[Resources]

Average UV index in September
Valley Head, AL

Average UV index in September - Valley Head, AL
  • Average UV index in September: 5

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

[Resources]

Average cloud cover in September
Valley Head, AL

Average cloud cover in September - Valley Head, AL
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 30).

[Resources]

Average visibility in September
Valley Head, AL

Average visibility in September - Valley Head, AL
  • Average visibility in September: 5mi

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

[Resources]