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
The onset of September notes an average high-temperature of a moderately hot 82.8°F (28.2°C), subtly shifted from August's 87.6°F (30.9°C). September nights in Delco are marked by an average low-temperature of 69.3°F (20.7°C).Heat index
Throughout September, the heat index is computed to be a tropical 89.6°F (32°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.Observations indicate that the heat index values are for shady locations with light wind. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Humidity
The average relative humidity in September is 77%.Rainfall
In Delco, in September, it is raining for 13.4 days, with typically 2.09" (53mm) of accumulated precipitation. In Delco, during the entire year, the rain falls for 141.7 days and collects up to 16.65" (423mm) of precipitation.Snowfall
In Delco, snow does not fall in January, March through December.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:46 am and sunset at 7:38 pm. On the last day of September, sunrise is at 7:07 am and sunset at 6:58 pm EDT.
Sunshine
In Delco, the average sunshine in September is 9.3h.UV index
In Delco, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 6 in September interprets into the following advice:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September in Delco?
When is the sunrise / sunset in September?
How many hours of sunshine does Delco have in September?
What is the UV index intensity in September?
Average temperature in September
Delco, NC
- Average high temperature in September: 82.8°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (53.2°F).
- Average low temperature in September: 69.3°F
The month with the highest average low temperature is July (74.5°F).
The coldest month (with the lowest average low temperature) is January (39.4°F).
Average pressure in September
Delco, NC
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Delco, NC
- Average wind speed in September: 7.2mph
The windiest month (with the highest average wind speed) is April (8.7mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in September
Delco, NC
- Average humidity in September: 77%
The month with the highest relative humidity is August (78%).
The months with the lowest relative humidity are January, February and March (74%).
Average rainfall in September
Delco, NC
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is August (2.36").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in September
Delco, NC
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (7.3 days).
Average snowfall in September
Delco, NC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Delco, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.4 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
Delco, NC
- 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: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Delco, NC
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is August (9.1 days).
Average UV index in September
Delco, NC
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Delco, NC
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in September
Delco, NC
- 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).
Delco, North Carolina, USA
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