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 is characterized by a slight reduction in average high-temperature, easing from a hot 88°F (31.1°C) in August to a warm 81.9°F (27.7°C). An average low-temperature of 61.9°F (16.6°C) is recorded in the month of September.Heat index
For September, the heat index is appraised at a tropical 87.8°F (31°C). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.Evaluating the heat index requires understanding its values in the shade and with gentle winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
In September, the average relative humidity in Mount Mourne is 74%.Rainfall
In Mount Mourne, in September, it is raining for 12.9 days, with typically 2.28" (58mm) of accumulated precipitation. Throughout the year, in Mount Mourne, there are 161.6 rainfall days, and 32.91" (836mm) of precipitation is accumulated.Snowfall
In Mount Mourne, snow does not fall in April through October.Daylight
In September, the average length of the day in Mount Mourne is 12h and 23min.On the first day of the month, sunrise is at 6:56 am and sunset at 7:50 pm. On the last day of September, in Mount Mourne, sunrise is at 7:18 am and sunset at 7:08 pm EDT.
Sunshine
In September, the average sunshine in Mount Mourne is 8.6h.UV index
In Mount Mourne, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In September, an average UV index of 5 transforms into the following instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Frequently asked questions
What is the temperature in September in Mount Mourne?
What is the average humidity in September in Mount Mourne?
How much does it rain in Mount Mourne in September?
When it does not snow in Mount Mourne?
What is the average length of the day in September in Mount Mourne?
What time are sunrise and sunset in September in Mount Mourne?
How long on average sun shines in September in Mount Mourne?
What is the UV index intensity in September in Mount Mourne?
Average temperature in September
Mount Mourne, NC
- Average high temperature in September: 81.9°F
The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (46.9°F).
- Average low temperature in September: 61.9°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in September
Mount Mourne, NC
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Mount Mourne, NC
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Mount Mourne, NC
- Average humidity in September: 74%
The months with the highest relative humidity are May and December (76%).
The month with the lowest relative humidity is July (70%).
Average rainfall in September
Mount Mourne, NC
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is April (3.46").
The driest month (with the least rainfall) is October (2.13").
Average rainfall days in September
Mount Mourne, NC
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is August (18 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in September
Mount Mourne, NC
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.13").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Mount Mourne, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.6 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
Mount Mourne, NC
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 8h and 4min
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
Mount Mourne, NC
- Average sunshine days in September: 15.4 days
The months with the most sunshine days are October and November (19.2 days).
The month with the least sunshine days is August (10.9 days).
Average UV index in September
Mount Mourne, NC
- 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
Mount Mourne, NC
- Average cloud cover in September: 35
The months with the most cloud cover are February and December (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 30).
Average visibility in September
Mount Mourne, 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).
Mount Mourne, North Carolina, USA
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