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
September brings a minor shift in the average high-temperature, adjusting from a tropical 90.5°F (32.5°C) in August to a moderately hot 85.1°F (29.5°C). Throughout September, Carlisle registers a consistent average low-temperature of 64.8°F (18.2°C).Heat index
Throughout September, the heat index is appraised at a hot 93.2°F (34°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.Remember that heat index calculations are made for conditions in the shade with light wind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humidity
In Carlisle, South Carolina, the average relative humidity in September is 72%.Rainfall
September is the month with the least rainfall. Rain falls for 10.4 days and accumulates 1.42" (36mm) of precipitation.Snowfall
In Carlisle, snow does not fall in April through November.Daylight
The average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:59 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:10 pm EDT.
Sunshine
In September, the average sunshine is 8.4h.UV index
In Carlisle, South Carolina, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Frequently asked questions
Is it hot in Carlisle during September?
What is the average humidity in September in Carlisle?
What is the driest month in Carlisle?
How many days does it rain in September in Carlisle?
When it does not snow in Carlisle?
What is the average length of the day in September in Carlisle?
When are sunrise and sunset in September in Carlisle?
How long on average sun shines in September in Carlisle?
How high is the UV index in September in Carlisle?
Average temperature in September
Carlisle, SC
- Average high temperature in September: 85.1°F
The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is January (51.4°F).
- Average low temperature in September: 64.8°F
The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (35.1°F).
Average pressure in September
Carlisle, SC
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Carlisle, SC
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in September
Carlisle, SC
- Average humidity in September: 72%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).
Average rainfall in September
Carlisle, SC
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is December (3.23").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in September
Carlisle, SC
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is October (8.8 days).
Average snowfall in September
Carlisle, SC
- 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, October and November (0").
Average snowfall days in September
Carlisle, SC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.9 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
Carlisle, SC
- 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Carlisle, SC
- Average sunshine days in September: 18 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is July (12.6 days).
Average UV index in September
Carlisle, SC
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Carlisle, SC
- Average cloud cover in September: 32
The months with the most cloud cover are February and December (Cloud cover 43).
The months with the least cloud cover are June, July and October (Cloud cover 30).
Average visibility in September
Carlisle, SC
- 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).
Carlisle, South Carolina, USA
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