September weather forecast and climate
Empire, AL

September, the first month of the autumn, in Empire, is still a warm month, with average temperature ranging between max 85.1°F (29.5°C) and min 65.3°F (18.5°C).

Temperature

In September, the average high-temperature is almost the same as in August - a warm 85.1°F (29.5°C). The average low-temperature, in Empire, is 65.3°F (18.5°C).

Heat index

In September, the average heat index is evaluated at a tropical 93.7°F (34.3°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased 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 a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like clothing, pregnancy, differences in body mass, height, and shape, and activity influence one's weather impression. 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. 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 September is 72%.

Rainfall

September is the month with the least rainfall. Rain falls for 11.3 days and accumulates 0.75" (19mm) of precipitation.

Snowfall

In Empire, Alabama, snow does not fall in March through October.

Daylight

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

Sunshine

In September, the average sunshine in Empire is 9h.

UV index

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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.

What is the temperature in September in Empire?

In September, in Empire, Alabama, the average high-temperature is 85.1°F (29.5°C), and the average low-temperature is 65.3°F (18.5°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that calculates temperature value influenced by the moisture in the air, is appraised at 93.7°F (34.3°C).

What is the average humidity in September in Empire?

In September, the average relative humidity in Empire is 72%.

How much does it rain in Empire in September?

In Empire, in September, during 11.3 rainfall days, 0.75" (19mm) of precipitation is typically accumulated.

What is the driest month in Empire?

The month with the least rainfall in Empire, Alabama, is September when the rain falls for 11.3 days and typically collects 0.75" (19mm) of precipitation.

When it does not snow in Empire?

March through October are months without snowfall in Empire.

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

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

How long on average sun shines in September in Empire?

In September, the average sunshine in Empire is 9h.

What is the UV index reading in September in Empire?

In September, the average daily maximum UV index in Empire is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from the exposure to the Sun's UV radiation.
Average temperature in September - Empire, AL
  • Average high temperature in September: 85.1°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (50.5°F).

  • Average low temperature in September: 65.3°F

Months with the highest average low temperature are July and August (70.3°F).
The coldest month (with the lowest average low temperature) is January (35.1°F).

Average pressure in September - Empire, AL
  • Average pressure in September: 30.01"

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

Average wind speed in September - Empire, AL
  • Average wind speed in September: 5mph

The windiest months (with the highest average wind speed) are February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity in September - Empire, AL
  • Average humidity in September: 72%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September - Empire, AL
  • Average rainfall in September: 0.75"

The wettest months (with the highest rainfall) are July and August (1.46").
The driest month (with the least rainfall) is September (0.75").

Average rainfall days in September - Empire, AL
  • Average rainfall days in September: 11.3 days

The month with the highest number of rainy days is July (15.8 days).
Months with the least rainy days are October and November (7.1 days).

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

The month with the highest snowfall is January (0.28").
Months with the least snowfall are March, April, May, June, July, August, September and October (0").

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

The month with the highest number of snowfall days is January (1.3 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September / Average sunshine in September - Empire, 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: 9h

Months with the most sunshine are June and July (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.8h).

Average sunshine days in September - Empire, AL
  • Average sunshine days in September: 16.1 days

The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is July (11.5 days).

Average UV index in September - Empire, AL
  • Average UV index in September: 6

Months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in September - Empire, AL
  • Average cloud cover in September: 29

Months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 29).

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

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