September weather forecast
Cedar Grove, VA

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Weather in September

September, the first month of the autumn in Cedar Grove, is also a moderately hot month, with an average temperature fluctuating between 81.1°F (27.3°C) and 62.8°F (17.1°C).

Temperature

A mild drop in Cedar Grove's average high-temperature is observed in September, transitioning from a hot 87.3°F (30.7°C) in August to a moderately hot 81.1°F (27.3°C). An average low-temperature of 62.8°F (17.1°C) is common during the nights of September.

Heat index

During September, the heat index is appraised at a tropical 86°F (30°C). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are quite important for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.

Humidity

In Cedar Grove, the average relative humidity in September is 76%.

Rainfall

September is the month with the least rainfall. Rain falls for 12.9 days and accumulates 1.85" (47mm) of precipitation.

Snowfall

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

Daylight

In Cedar Grove, the average length of the day in September is 12h and 24min.
On the first day of the month, sunrise is at 6:43 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:07 am and sunset at 6:56 pm EDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

In Cedar Grove, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 5 during September translates into the following directions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

During September, Cedar Grove experiences an average high-temperature of 81.1°F (27.3°C) and a low-temperature of 62.8°F (17.1°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is appraised at 86°F (30°C).

What is the average humidity in September?

In September, the average relative humidity is 76%.

What is the driest month?

The month with the least rainfall in Cedar Grove, Virginia, is September, when the rain falls for 12.9 days and typically collects 1.85" (47mm) of precipitation.

How much does it rain in September?

In Cedar Grove, in September, it is raining for 12.9 days, with typically 1.85" (47mm) of accumulated precipitation.

When it does not snow?

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

How many hours of daylight does Cedar Grove have in September?

In September, the average day length is 12h and 24min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:43 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:56 pm EDT.

How long on average sun shines in September?

In Cedar Grove, the average sunshine duration in September is 8.7h.

How high is the UV index in September?

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
Cedar Grove, VA

Average temperature in September - Cedar Grove, VA
  • Average high temperature in September: 81.1°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (45.9°F).

  • Average low temperature in September: 62.8°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 (30.6°F).

Average pressure in September
Cedar Grove, VA

Average pressure in September - Cedar Grove, 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
Cedar Grove, VA

Average wind speed in September - Cedar Grove, VA
  • 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
Cedar Grove, VA

Average humidity in September - Cedar Grove, VA
  • Average humidity in September: 76%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is July (72%).

Average rainfall in September
Cedar Grove, VA

Average rainfall in September - Cedar Grove, VA
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in September
Cedar Grove, VA

Average rainfall days in September - Cedar Grove, VA
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in September
Cedar Grove, VA

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

The month with the highest snowfall is March (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Cedar Grove, VA

Average snowfall days in September - Cedar Grove, 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
Cedar Grove, VA

Average daylight in September / Average sunshine in September - Cedar Grove, 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
Cedar Grove, VA

Average sunshine days in September - Cedar Grove, VA
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (11 days).

Average UV index in September
Cedar Grove, VA

Average UV index in September - Cedar Grove, 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
Cedar Grove, VA

Average cloud cover in September - Cedar Grove, VA
  • Average cloud cover in September: 39

The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is June (Cloud cover 31).

Average visibility in September
Cedar Grove, VA

Average visibility in September - Cedar Grove, 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).

Cedar Grove, Virginia, USA

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