Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Alpine sees the arrival of September with an average high-temperature of a warm 84.7°F (29.3°C), indicating a subtle variation from August. In the month of September, the average low-temperature in Alpine usually rests at a refreshing 65.3°F (18.5°C).Heat index
During September, the heat index is evaluated at a hot 93.2°F (34°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
In September, the average relative humidity is 74%.Rainfall
In Alpine, Alabama, in September, during 14 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. Throughout the year, in Alpine, there are 175.7 rainfall days, and 39.06" (992mm) of precipitation is accumulated.Snowfall
In Alpine, snow does not fall in April through October.Daylight
In September, the average length of the day in Alpine, Alabama, is 12h and 22min.On the first day of the month, sunrise is at 6:19 am and sunset at 7:09 pm. On the last day of September, in Alpine, sunrise is at 6:39 am and sunset at 6:30 pm CDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In September, the average daily maximum UV index in Alpine is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 5 in September translates into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. To guard against the harmful effects of the Sun, minimize exposure during midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
How hot is it in Alpine in September?
What is the average humidity in September in Alpine?
How many days does it rain in September in Alpine?
When it does not snow in Alpine?
How many hours of daylight does Alpine have in September?
When is the sunrise / sunset in September in Alpine?
How long on average sun shines in September in Alpine?
How high is the UV index in September in Alpine?
Average temperature in September
Alpine, AL
- Average high temperature in September: 84.7°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 (51.3°F).
- Average low temperature in September: 65.3°F
The months with the highest average low temperature are July and August (70°F).
The coldest month (with the lowest average low temperature) is January (35.6°F).
Average pressure in September
Alpine, AL
- Average pressure in September: 30.01"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).
Average wind speed in September
Alpine, AL
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).
Average humidity in September
Alpine, 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%).
Average rainfall in September
Alpine, AL
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is April (4.06").
The driest month (with the least rainfall) is October (2.24").
Average rainfall days in September
Alpine, AL
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is August (21.9 days).
The month with the least rainy days is November (8.2 days).
Average snowfall in September
Alpine, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Alpine, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.1 days).
The 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
Alpine, AL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- 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 54min).
Average sunshine days in September
Alpine, AL
- Average sunshine days in September: 13.4 days
The months with the most sunshine days are October and November (19.5 days).
The month with the least sunshine days is July (6.8 days).
Average UV index in September
Alpine, AL
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Alpine, AL
- Average cloud cover in September: 30
The months with the most cloud cover are February and December (Cloud cover 47).
The months with the least cloud cover are September and October (Cloud cover 30).
Average visibility in September
Alpine, 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).
Alpine, Alabama, USA
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