September weather forecast and climate
Blalock, AL

The first month of the autumn, September, is also a hot month in Blalock, Alabama, with average temperature ranging between max 87.8°F (31°C) and min 67.3°F (19.6°C).

Temperature

In September, the average high-temperature is practically the same as in August - a still tropical 87.8°F (31°C). In September, the average low-temperature is 67.3°F (19.6°C).

Heat index

In September, the average heat index is appraised at a very hot 100.2°F (37.9°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
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 'felt air temperature', 'feels like', 'apparent temperature', or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like metabolic differences, clothing, pregnancy, and activity influence one's weather impression. 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Blalock, the average relative humidity in September is 71%.

Rainfall

The month with the least rainfall is September when the rain falls for 13.1 days and typically collects 1.26" (32mm) of precipitation.

Snowfall

March through October are months without snowfall in Blalock.

Daylight

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

Sunshine

In September, the average sunshine in Blalock is 9.1h.

UV index

The average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 6 in September interpret into the following advice:
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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Blalock?

In September, in Blalock, the average high-temperature is 87.8°F (31°C), and the average low-temperature is 67.3°F (19.6°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), that factores the actual air temperature with the relative humidity, is estimated at 100.2°F (37.9°C).

What is the average humidity in September in Blalock?

The average relative humidity in September in Blalock, Alabama, is 71%.

How much does it rain in Blalock in September?

In Blalock, during September, the rain falls for 13.1 days and regularly aggregates up to 1.26" (32mm) of precipitation.

What is the driest month in Blalock?

The month with the least rainfall is September when the rain falls for 13.1 days and typically collects 1.26" (32mm) of precipitation.

When it does not snow in Blalock?

March through October are months without snowfall in Blalock.

How many hours of daylight does Blalock have in September?

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

How long on average sun shines in September in Blalock?

In Blalock, the average sunshine in September is 9.1h.

How high is the UV index in September in Blalock?

In Blalock, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health threat from unprotected exposure to the UV radiation.
Average temperature in September - Blalock, AL
  • Average high temperature in September: 87.8°F

The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (54.1°F).

  • Average low temperature in September: 67.3°F

The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).

Average pressure in September - Blalock, AL
  • Average pressure in September: 29.99"

The month with the highest atmospheric pressure is January (30.16").
Months with the lowest atmospheric pressure are June and August (29.97").

Average wind speed in September - Blalock, AL
  • Average wind speed in September: 5.4mph

The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).

Average humidity in September - Blalock, AL
  • Average humidity in September: 71%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (68%).

Average rainfall in September - Blalock, AL
  • Average rainfall in September: 1.26"

The wettest months (with the highest rainfall) are April and August (2.44").
The driest month (with the least rainfall) is September (1.26").

Average rainfall days in September - Blalock, AL
  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (6.7 days).

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

Months with the highest snowfall are January and December (0.31").
Months with the least snowfall are March, April, May, June, July, August, September and October (0").

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

The month with the highest number of snowfall days is January (0.8 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 - Blalock, AL
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10.1h).

  • Average sunshine in September: 9.1h

The month with the most sunshine is June (Average sunshine: 10.5h).
Months with the least sunshine are February and December (Average sunshine: 4.8).

Average sunshine days in September - Blalock, AL
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is July (9.2 days).

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

Months with the highest UV index are June, July and August (UV index 7).
Months with the lowest UV index are January and December (UV index 3).

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

Months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 30).

Average visibility in September - Blalock, 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).