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 the commencement of September, Mannboro records a moderate temperature decline, with the average high easing from August's tropical 87.6°F (30.9°C) to a moderately hot 81.1°F (27.3°C). Throughout the month of September, Mannboro expects an average low of 63°F (17.2°C).Heat index
In September, the average heat index is calculated to be a tropical 86°F (30°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', shows a temperature sensation when both heat and moisture conditions are combined. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold great significance to children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
The average relative humidity in September in Mannboro is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 13.3 days and accumulates 1.93" (49mm) of precipitation.Snowfall
In Mannboro, snow does not fall in May through October.Daylight
In Mannboro, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:42 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:55 pm EDT.
Sunshine
The average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September in Mannboro, Virginia, 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 during September translates into the following directions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
What is the temperature in September in Mannboro?
What is the average humidity in September in Mannboro?
What is the driest month in Mannboro?
How much does it rain in Mannboro in September?
When it does not snow in Mannboro?
What is the average length of the day in September in Mannboro?
What time are sunrise and sunset in September in Mannboro?
How long on average sun shines in September in Mannboro?
What is the UV index reading in September in Mannboro?
Average temperature in September
Mannboro, VA
- Average high temperature in September: 81.1°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in September: 63°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in September
Mannboro, VA
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Mannboro, VA
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Mannboro, VA
- Average humidity in September: 75%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (70%).
Average rainfall in September
Mannboro, VA
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Mannboro, VA
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in September
Mannboro, VA
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Mannboro, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Mannboro, VA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 8h and 5min
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
Mannboro, VA
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in September
Mannboro, VA
- 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
Mannboro, VA
- Average cloud cover in September: 38
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Mannboro, VA
- 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).
Mannboro, Virginia, USA
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