September weather forecast
Union Level, VA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Union Level, Virginia, with an average temperature fluctuating between 81.5°F (27.5°C) and 62.6°F (17°C).

Temperature

With the onset of September, Union Level's average high-temperature slightly adjusts, moderately receding from August's hot 87.4°F (30.8°C) to a warm 81.5°F (27.5°C). Union Level, during the month of September, experiences an average low-temperature of 62.6°F (17°C).

Heat index

September's average heat index is appraised at a tropical 86°F (30°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.
Heat index specifics point out values are for conditions of shade and a slight breeze. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. 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 primarily vital for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in September is 76%.

Rainfall

September is the month with the least rainfall. Rain falls for 12 days and accumulates 1.3" (33mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

In Union Level, the average length of the day in September is 12h and 24min.
On the first day of September, sunrise is at 6:44 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 Union Level, 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 exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 5 in September translates into this advice:
Undertake protective steps - Preventing sun damage is advised. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Updated: Jul 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Union Level in September?

In Union Level, in September, the average high-temperature is 81.5°F (27.5°C), and the average low-temperature is 62.6°F (17°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September 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?

September is the month with the least rainfall. Rain falls for 12 days and accumulates 1.3" (33mm) of precipitation.

How much does it rain in September?

In Union Level, in September, it is raining for 12 days, with typically 1.3" (33mm) of accumulated precipitation.

When it does not snow?

April through November are months without snowfall.

What is the average length of the day in September?

In Union Level, Virginia, the average day length in September is 12h and 24min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:44 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.

How long on average sun shines in September?

In Union Level, the average sunshine duration in September is 8.8h.

How high is the UV index in September in Union Level?

In Union Level, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Union Level, VA

Average temperature in September - Union Level, VA
  • Average high temperature in September: 81.5°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (46°F).

  • Average low temperature in September: 62.6°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 (30.6°F).

Average pressure in September
Union Level, VA

Average pressure in September - Union Level, 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
Union Level, VA

Average wind speed in September - Union Level, VA
  • Average wind speed in September: 5.6mph

The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Union Level, VA

Average humidity in September - Union Level, VA
  • Average humidity in September: 76%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (71%).

Average rainfall in September
Union Level, VA

Average rainfall in September - Union Level, VA
  • Average rainfall in September: 1.3"

The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is September (1.3").

Average rainfall days in September
Union Level, VA

Average rainfall days in September - Union Level, VA
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is October (8.3 days).

Average snowfall in September
Union Level, VA

Average snowfall in September - Union Level, VA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (1.5").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Union Level, VA

Average snowfall days in September - Union Level, VA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.5 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
Union Level, VA

Average daylight in September / Average sunshine in September - Union Level, 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 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
Union Level, VA

Average sunshine days in September - Union Level, VA
  • Average sunshine days in September: 16.3 days

The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is July (12 days).

Average UV index in September
Union Level, VA

Average UV index in September - Union Level, 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
Union Level, VA

Average cloud cover in September - Union Level, VA
  • Average cloud cover in September: 39

The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in September
Union Level, VA

Average visibility in September - Union Level, 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).

Union Level, Virginia, USA

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