September weather forecast
Crystal Springs, AL

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Weather in September

September, the first month of the autumn in Crystal Springs, is also a moderately hot month, with an average temperature varying between 63.9°F (17.7°C) and 84°F (28.9°C).

Temperature

On the advent of September, Crystal Springs's average high-temperature exhibits a minor adjustment to a warm 84°F (28.9°C) from August's 89.1°F (31.7°C). During September, Crystal Springs experiences an average low-temperature of 63.9°F (17.7°C) at night.

Heat index

During September, the heat index is estimated at a hot 91.4°F (33°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.

Humidity

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

Rainfall

In Crystal Springs, Alabama, in September, it is raining for 12.9 days, with typically 2.36" (60mm) of accumulated precipitation. In Crystal Springs, during the entire year, the rain falls for 171.3 days and collects up to 37.83" (961mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in September in Crystal Springs is 12h and 22min.
On the first day of the month, sunrise is at 6:17 am and sunset at 7:08 pm. On the last day of September, in Crystal Springs, sunrise is at 6:37 am and sunset at 6:28 pm CDT.

Sunshine

In September, the average sunshine in Crystal Springs is 8.6h.

UV index

In Crystal Springs, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 5 during September translates into the following directions:
Heed the precautions - Suggestions to avoid sunburn are made. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Frequently asked questions

How hot does it get in Crystal Springs in September?

The high-temperature, in September, in Crystal Springs, records 84°F (28.9°C), while the low-temperature is 63.9°F (17.7°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is estimated at 91.4°F (33°C).

What is the average humidity in September in Crystal Springs?

The average relative humidity in September is 74%.

How many days does it rain in September in Crystal Springs?

In September, the rain falls for 12.9 days. Throughout September, 2.36" (60mm) of precipitation is accumulated.

When it does not snow in Crystal Springs?

April through October are months without snowfall.

What is the average length of the day in September in Crystal Springs?

In September, the average day length in Crystal Springs is 12h and 22min.

When is the sunrise / sunset in September in Crystal Springs?

In September, on the first day of the month, sunrise is at 6:17 am and sunset at 7:08 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 6:28 pm CDT.

How long on average sun shines in September in Crystal Springs?

The average sunshine duration in September is 8.6h.

What is the UV index reading in September in Crystal Springs?

In September, the average daily maximum UV index in Crystal Springs, Alabama, is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Crystal Springs, AL

Average temperature in September - Crystal Springs, AL
  • Average high temperature in September: 84°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (49.6°F).

  • Average low temperature in September: 63.9°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).

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Average pressure in September
Crystal Springs, AL

Average pressure in September - Crystal Springs, AL
  • Average pressure in September: 30.02"Hg

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

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Average wind speed in September
Crystal Springs, AL

Average wind speed in September - Crystal Springs, AL
  • Average wind speed in September: 4.6mph

The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).

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Average humidity in September
Crystal Springs, AL

Average humidity in September - Crystal Springs, 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
Crystal Springs, AL

Average rainfall in September - Crystal Springs, AL
  • Average rainfall in September: 2.36"

The wettest months (with the highest rainfall) are February and December (3.9").
The driest month (with the least rainfall) is October (2.32").

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Average rainfall days in September
Crystal Springs, AL

Average rainfall days in September - Crystal Springs, AL
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is July (20.7 days).
The month with the least rainy days is November (8.7 days).

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Average snowfall in September
Crystal Springs, AL

Average snowfall in September - Crystal Springs, AL
  • Average snowfall in September: 0"

The month with the highest snowfall is December (0.43").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Crystal Springs, AL

Average snowfall days in September - Crystal Springs, AL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.4 days).
The 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
Crystal Springs, AL

Average daylight in September / Average sunshine in September - Crystal Springs, AL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 8h and 4min

The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in September
Crystal Springs, AL

Average sunshine days in September - Crystal Springs, AL
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (8.8 days).

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Average UV index in September
Crystal Springs, AL

Average UV index in September - Crystal Springs, AL
  • Average UV index in September: 5

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

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Average cloud cover in September
Crystal Springs, AL

Average cloud cover in September - Crystal Springs, 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
Crystal Springs, AL

Average visibility in September - Crystal Springs, AL
  • Average visibility in September: 6mi

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

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Crystal Springs, Alabama, USA

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