September weather forecast
Brown Grove, VA

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Weather in September

September, the first month of the autumn in Brown Grove, is also a moderately hot month, with an average temperature varying between 62.2°F (16.8°C) and 80.8°F (27.1°C).

Temperature

The transition to September results in a modest reduction in average high-temperature, moving from a tropical 87.8°F (31°C) in August to a moderately hot 80.8°F (27.1°C). Throughout the nights in September, Brown Grove experiences an average low-temperature of 62.2°F (16.8°C).

Heat index

The average heat index in September is estimated at 84.2°F (29°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.
It is important to note that the heat index values are for shaded areas and light wind scenarios. 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 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.

Humidity

In September, the average relative humidity is 75%.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.6 days and typically collects 1.69" (43mm) of precipitation.

Snowfall

In Brown Grove, snow does not fall in May through October.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 6:40 am and sunset at 7:38 pm. On the last day of September, in Brown Grove, sunrise is at 7:05 am and sunset at 6:53 pm EDT.

Sunshine

In Brown Grove, the average sunshine in September is 8.8h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.

Frequently asked questions

What is the usual temperature for Brown Grove in September?

The high-temperature during September is 80.8°F (27.1°C) and the low-temperature is 62.2°F (16.8°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is estimated at 84.2°F (29°C).

What is the average humidity in September?

In Brown Grove, the average relative humidity in September is 75%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 11.6 days and typically collects 1.69" (43mm) of precipitation.

How many days does it rain in September?

In Brown Grove, in September, during 11.6 rainfall days, 1.69" (43mm) of precipitation is typically accumulated.

When it does not snow?

In Brown Grove, snow does not fall in May through October.

What is the average length of the day in September?

The average day length in September is 12h and 25min.

When are sunrise and sunset in September in Brown Grove?

In September, on the first day of the month, sunrise is at 6:40 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:53 pm EDT.

How long on average sun shines in September?

In Brown Grove, the average sunshine duration in September is 8.8h.

What is the UV index intensity in September?

In Brown Grove, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Brown Grove, VA

Average temperature in September - Brown Grove, VA
  • Average high temperature in September: 80.8°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 (43.9°F).

  • Average low temperature in September: 62.2°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).

Average pressure in September
Brown Grove, VA

Average pressure in September - Brown Grove, 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 (29.95"Hg).

Average wind speed in September
Brown Grove, VA

Average wind speed in September - Brown Grove, VA
  • Average wind speed in September: 5.6mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Brown Grove, VA

Average humidity in September - Brown Grove, 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 (69%).

Average rainfall in September
Brown Grove, VA

Average rainfall in September - Brown Grove, VA
  • Average rainfall in September: 1.69"

The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in September
Brown Grove, VA

Average rainfall days in September - Brown Grove, VA
  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is November (9.2 days).

Average snowfall in September
Brown Grove, VA

Average snowfall in September - Brown Grove, VA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Brown Grove, VA

Average snowfall days in September - Brown Grove, VA
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (3.8 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
Brown Grove, VA

Average daylight in September / Average sunshine in September - Brown Grove, 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 36min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days in September
Brown Grove, VA

Average sunshine days in September - Brown Grove, VA
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (11.7 days).

Average UV index in September
Brown Grove, VA

Average UV index in September - Brown Grove, VA
  • Average UV index in September: 5

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in September
Brown Grove, VA

Average cloud cover in September - Brown Grove, VA
  • Average cloud cover in September: 38

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in September
Brown Grove, VA

Average visibility in September - Brown Grove, VA
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are May and December (5mi).

Brown Grove, Virginia, USA

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