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 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
Silverhill's entry into September measures an average high-temperature of a still tropical 86.9°F (30.5°C), closely parallel to the preceding month. Silverhill, in the month of September, anticipates a consistent average low-temperature of 72.7°F (22.6°C).Heat index
For September, the heat index is computed to be a sweltering 100.4°F (38°C). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.When referencing the heat index, its values are suitable for shady environments and light breezes. 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 'real feel' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
In September, the average relative humidity is 75%.Rainfall
In Silverhill, in September, it is raining for 16.9 days, with typically 3.11" (79mm) of accumulated precipitation. Throughout the year, there are 165.7 rainfall days, and 31.46" (799mm) of precipitation is accumulated.Snowfall
In Silverhill, snow does not fall in February through November.Daylight
In September, the average length of the day is 12h and 20min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:13 pm. On the last day of September, sunrise is at 6:44 am and sunset at 6:37 pm CDT.
Sunshine
The average sunshine in September is 9.7h.UV index
In Silverhill, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 6 during September translates into the following directions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September in Silverhill?
How many hours of sunshine does Silverhill have in September?
How high is the UV index in September?
Average temperature in September
Silverhill, AL
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (58.8°F).
- Average low temperature in September: 72.7°F
The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (44.6°F).
Average pressure in September
Silverhill, AL
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in September
Silverhill, AL
- Average wind speed in September: 6mph
The windiest months (with the highest average wind speed) are January, March and April (7.9mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in September
Silverhill, AL
- Average humidity in September: 75%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Silverhill, AL
- Average rainfall in September: 3.11"
The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is May (1.57").
Average rainfall days in September
Silverhill, AL
- Average rainfall days in September: 16.9 days
The month with the highest number of rainy days is July (22.9 days).
The month with the least rainy days is November (8.4 days).
Average snowfall days in September
Silverhill, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Silverhill, AL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The months with the least sunshine are February and December (Average sunshine: 5h and 24min).
Average sunshine days in September
Silverhill, AL
- Average sunshine days in September: 11 days
The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (5.8 days).
Average UV index in September
Silverhill, AL
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Silverhill, AL
- Average cloud cover in September: 25
The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 23).
Average visibility in September
Silverhill, 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).
Silverhill, Alabama, USA
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