September weather forecast and climate
Welch, AL

Weather in September

The first month of the autumn, September, is also a moderately hot month in Welch, Alabama, with temperature in the range of an average high of 84.2°F (29°C) and an average low of 64.6°F (18.1°C).

Temperature

In Welch, the average high-temperature is almost the same as in August - a warm 84.2°F (29°C). In September, the average low-temperature is 64.6°F (18.1°C).

Heat index

In September, the average heat index is calculated to a hot 92.3°F (33.5°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. 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 'feels like', 'real feel', 'apparent temperature', or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like activity, wind, metabolic differences, and pregnancy affect individual temperature impact. 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 especially crucial for babies and toddlers. 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 Welch is 74%.

Rainfall

In Welch, during September, the rain falls for 14.1 days and regularly aggregates up to 2.36" (60mm) of precipitation. Throughout the year, in Welch, there are 181.7 rainfall days, and 39.06" (992mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall.

Daylight

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

Sunshine

In September, the average sunshine in Welch is 8.5h.

UV index

The average daily maximum UV index in Welch, Alabama, is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to the UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. 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.
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FAQ

What is the temperature in September in Welch?

In Welch, in September, the average high-temperature is 84.2°F (29°C), and the average low-temperature is 64.6°F (18.1°C). The average heat index (a.k.a. 'real feel', 'feels like'), that calculates temperature value influenced by the moisture in the air, in September is estimated at 92.3°F (33.5°C).

What is the average humidity in September in Welch?

In September, the average relative humidity in Welch, Alabama, is 74%.

How much does it rain in Welch in September?

In September, in Welch, Alabama, the rain falls for 14.1 days. Throughout September, 2.36" (60mm) of precipitation is accumulated.

When it does not snow in Welch?

In Welch, Alabama, snow does not fall in April through November.

How many hours of daylight does Welch have in September?

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

How many hours of sunshine does Welch have in September?

The average sunshine in September in Welch is 8.5h.

What is the UV index reading in September in Welch?

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to the Sun's UV rays.

Average temperature in September
Welch, AL

Average temperature in September - Welch, AL
  • Average high temperature in September: 84.2°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (52°F).

  • Average low temperature in September: 64.6°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).

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Average pressure in September
Welch, AL

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

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
Welch, AL

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

The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).

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Average humidity in September
Welch, AL

Average humidity in September - Welch, AL
  • Average humidity in September: 74%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in September
Welch, AL

Average rainfall in September - Welch, AL
  • Average rainfall in September: 2.36"

The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is October (1.93").

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Average rainfall days in September
Welch, AL

Average rainfall days in September - Welch, AL
  • Average rainfall days in September: 14.1 days

The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is November (8.5 days).

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Average snowfall in September
Welch, AL

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

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

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Average snowfall days in September
Welch, AL

Average snowfall days in September - Welch, 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 May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Welch, AL

Average daylight in September / Average sunshine in September - Welch, 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: 10h).

  • Average sunshine in September: 8.5h

Months with the most sunshine are June and July (Average sunshine: 10.5h).
Months with the least sunshine are February and December (Average sunshine: 5).

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Average sunshine days in September
Welch, AL

Average sunshine days in September - Welch, AL
  • Average sunshine days in September: 13.8 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (7.5 days).

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Average UV index in September
Welch, AL

Average UV index in September - Welch, 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, February, November and December (UV index 3).

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Average cloud cover in September
Welch, AL

Average cloud cover in September - Welch, AL
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 31).

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Average visibility in September
Welch, AL

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

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

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