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
With September's onset, the weather reveals a slight temperature decrease, transitioning from a hot 87.3°F (30.7°C) in August to a moderately hot 81.5°F (27.5°C). Throughout the nights in September, Alert experiences an average low-temperature of 63.3°F (17.4°C).Heat index
The heat index in September is appraised at a tropical 86°F (30°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.Understand that the heat index values take into account shaded locations and mild winds. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Humidity
In Alert, the average relative humidity in September is 76%.Rainfall
In September, the rain falls for 13.7 days. Throughout September, 2.44" (62mm) of precipitation is accumulated. In Alert, during the entire year, the rain falls for 160.1 days and collects up to 30.55" (776mm) of precipitation.Snowfall
In Alert, snow does not fall in April through October.Daylight
The average length of the day in September in Alert is 12h and 24min.On the first day of September in Alert, sunrise is at 6:45 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:57 pm EDT.
Sunshine
In September, the average sunshine is 8.9h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Alert?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Alert have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Alert, NC
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (47.5°F).
- Average low temperature in September: 63.3°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (32°F).
Average pressure in September
Alert, NC
- 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 (29.96"Hg).
Average wind speed in September
Alert, NC
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Alert, NC
- Average humidity in September: 76%
The months with the highest relative humidity are May and December (77%).
The month with the lowest relative humidity is July (73%).
Average rainfall in September
Alert, NC
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is August (3.27").
The driest month (with the least rainfall) is October (2.13").
Average rainfall days in September
Alert, NC
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in September
Alert, NC
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.61").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Alert, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.4 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
Alert, NC
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Alert, NC
- Average sunshine days in September: 15 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Alert, NC
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Alert, NC
- Average cloud cover in September: 37
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in September
Alert, 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).
Alert, North Carolina, USA
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