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
A modest decline in the average high-temperature is seen during September, decreasing from a hot 87.4°F (30.8°C) in August to a warm 80.6°F (27°C). Throughout September nights, Hampden Sydney experiences a consistent temperature average of 61.3°F (16.3°C).Heat index
The heat index in September is calculated to be 84.2°F (29°C). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.Heat index's context suggests values are appropriate for shady areas and slight breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
In Hampden Sydney, the average relative humidity in September is 75%.Rainfall
The month with the least rainfall in Hampden Sydney is September, when the rain falls for 12.2 days and typically collects 1.69" (43mm) of precipitation.Snowfall
In Hampden Sydney, snow does not fall in May through September.Daylight
In Hampden Sydney, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:42 pm. On the last day of September, in Hampden Sydney, sunrise is at 7:09 am and sunset at 6:58 pm EDT.
Sunshine
In Hampden Sydney, the average sunshine in September is 8.7h.UV index
In Hampden Sydney, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
What are the temperatures in Hampden Sydney in September?
What is the average humidity in September in Hampden Sydney?
What is the driest month in Hampden Sydney?
How many days does it rain in September in Hampden Sydney?
When it does not snow in Hampden Sydney?
Does it snow in Hampden Sydney in September?
What is the average length of the day in September in Hampden Sydney?
What time are sunrise and sunset in September in Hampden Sydney?
How long on average sun shines in September in Hampden Sydney?
How high is the UV index in September in Hampden Sydney?
Average temperature in September
Hampden Sydney, VA
- Average high temperature in September: 80.6°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 (44.6°F).
- Average low temperature in September: 61.3°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).
Average pressure in September
Hampden Sydney, VA
- Average pressure in September: 30.05"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
Hampden Sydney, VA
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Hampden Sydney, 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
Hampden Sydney, VA
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in September
Hampden Sydney, VA
- Average rainfall days in September: 12.2 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 days).
Average snowfall in September
Hampden Sydney, VA
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.52").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Hampden Sydney, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.4 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
Hampden Sydney, 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 42min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Hampden Sydney, 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 (11.3 days).
Average UV index in September
Hampden Sydney, 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
Hampden Sydney, VA
- Average cloud cover in September: 39
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Hampden Sydney, VA
- Average visibility in September: 5mi
The months with the highest visibility are February, March, April, June, July, August, October and November (6mi).
The months with the lowest visibility are January, May, September and December (5mi).
Hampden Sydney, Virginia, USA
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