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
Welcoming September, Danville notes an average high-temperature of a moderately hot 83.3°F (28.5°C), nearly consistent with August's 88.3°F (31.3°C). An average low-temperature of 64°F (17.8°C) marks the month of September.Heat index
September's average heat index is computed to be a tropical 89.6°F (32°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
In September, the average relative humidity in Danville is 74%.Rainfall
In Danville, in September, it is raining for 13.7 days, with typically 2.48" (63mm) of accumulated precipitation. In Danville, during the entire year, the rain falls for 173 days and collects up to 41.38" (1051mm) of precipitation.Snowfall
In Danville, snow does not fall in April through October.Daylight
In Danville, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:22 am and sunset at 7:14 pm. On the last day of September, in Danville, sunrise is at 6:42 am and sunset at 6:33 pm CDT.
Sunshine
The average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September in Danville is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. To protect against the Sun's most potent rays, avoid direct exposure around midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Frequently asked questions
How hot is September in Danville?
What is the average humidity in September in Danville?
How much does it rain in Danville in September?
When it does not snow in Danville?
What is the average length of the day in September in Danville?
When are sunrise and sunset in September in Danville?
How many hours of sunshine does Danville have in September?
How high is the UV index in September in Danville?
Average temperature in September
Danville, AL
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in September: 64°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (33.6°F).
Average pressure in September
Danville, 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).
Average wind speed in September
Danville, AL
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Danville, AL
- Average humidity in September: 74%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Danville, AL
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is December (4.25").
The driest month (with the least rainfall) is November (2.24").
Average rainfall days in September
Danville, AL
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in September
Danville, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Danville, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Danville, 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 5min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Danville, AL
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in September
Danville, AL
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Danville, AL
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Danville, 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).
Danville, Alabama, USA
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