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
Nelson's September weather shows a modest shift in high-temperatures, falling from August's tropical 87.8°F (31°C) to a warm 81.7°F (27.6°C). Nelson's average low-temperature for the month of September records at a comfortable 62.4°F (16.9°C).Heat index
September's heat index is calculated to be a hot 86°F (30°C). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.When assessing, remember that heat index measurements are for light winds and shaded spots. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Humidity
The average relative humidity in September is 75%.Rainfall
September is the month with the least rainfall in Nelson. Rain falls for 12.3 days and accumulates 1.85" (47mm) of precipitation.Snowfall
May through October are months without snowfall in Nelson, Virginia.Daylight
In Nelson, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 6:46 am and sunset at 7:42 pm. On the last day of September, sunrise is at 7:09 am and sunset at 6:59 pm EDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In Nelson, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Avoiding the Sun during its peak radiation time around midday is a healthy practice. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Frequently asked questions
What is the average September temperature in Nelson?
What is the average humidity in September in Nelson?
What is the driest month in Nelson?
How many days does it rain in September in Nelson?
When it does not snow in Nelson?
How many hours of daylight does Nelson have in September?
What time are sunrise and sunset in September in Nelson?
How many hours of sunshine does Nelson have in September?
What is the UV index reading in September in Nelson?
Average temperature in September
Nelson, VA
- Average high temperature in September: 81.7°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in September: 62.4°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in September
Nelson, VA
- Average pressure in September: 30.04"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
Nelson, VA
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Nelson, 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
Nelson, VA
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
Nelson, VA
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in September
Nelson, VA
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Nelson, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.8 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
Nelson, VA
- 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 4min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Nelson, VA
- Average sunshine days in September: 16 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is July (11.6 days).
Average UV index in September
Nelson, 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, February and December (UV index 2).
Average cloud cover in September
Nelson, VA
- Average cloud cover in September: 40
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are June and July (Cloud cover 32).
Average visibility in September
Nelson, VA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Nelson, Virginia, USA
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