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 ushers in a minor alteration in Alert's climate, with the average high-temperature moving from August's tropical 87.3°F (30.7°C) to a moderately hot 81.5°F (27.5°C). During September, Alert observes a consistent average nighttime temperature of 63.3°F (17.4°C).Heat index
Throughout September, the heat index is computed to be a hot 86°F (30°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.Always consider that heat index estimations are for light winds and places in the shade. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', shows a temperature sensation when both heat and moisture conditions are combined. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
The average relative humidity in September is 76%.Rainfall
In Alert, in September, it is raining for 13.7 days, with typically 2.44" (62mm) of accumulated precipitation. 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, North Carolina, snow does not fall in April through October.Daylight
The average length of the day in September 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 in Alert, North Carolina, is 8.9h.UV index
The average daily maximum UV index in September in Alert, North Carolina, is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, an average UV index of 5 transforms into the following instructions:
Exercise prevention - Protecting skin and eyes from harm is required. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What are the temperatures in Alert in September?
What is the average humidity in September in Alert?
How much does it rain in Alert in September?
When it does not snow in Alert?
What is the average length of the day in September in Alert?
When is the sunrise / sunset in September in Alert?
How many hours of sunshine does Alert have in September?
What is the UV index reading in September in Alert?
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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