September weather forecastWylliesburg, VA
September
Weather in September
September, the first month of the autumn in Wylliesburg, is also a moderately hot month, with an average temperature fluctuating between 62.2°F (16.8°C) and 81.3°F (27.4°C).Temperature
With the commencement of September, Wylliesburg records a moderate temperature decline, with the average high easing from August's hot 87.4°F (30.8°C) to a moderately hot 81.3°F (27.4°C). During September, the temperature tends to dip to an average of 62.2°F (16.8°C) at night.Heat index
Throughout September, the heat index is evaluated at a tropical 86°F (30°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.Understand that the heat index values take into account shaded locations and mild winds. 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 'feels like' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
In September, the average relative humidity is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 1.73" (44mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 24min.On the first day of September, sunrise is at 6:45 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:58 pm EDT.
Sunshine
In Wylliesburg, the average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Guard yourself - Avoiding sunburn is suggested. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Wylliesburg, VA
- Average high temperature in September: 81.3°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in September: 62.2°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 (30.4°F).
Average pressure in September
Wylliesburg, 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
Wylliesburg, VA
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Wylliesburg, 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 (71%).
Average rainfall in September
Wylliesburg, VA
- Average rainfall in September: 1.73"
The wettest months (with the highest rainfall) are May and August (2.91").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in September
Wylliesburg, VA
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is November (9.6 days).
Average snowfall in September
Wylliesburg, VA
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.44").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Wylliesburg, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Wylliesburg, VA
- Average daylight in September: 12h and 24min
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 42min
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
Wylliesburg, VA
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11 days).
Average UV index in September
Wylliesburg, 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
Wylliesburg, VA
- Average cloud cover in September: 39
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
Wylliesburg, 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).
