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
In Fergusonville, the average high-temperature in September slightly decreases from a tropical 87.4°F (30.8°C) in August to a moderately hot 80.6°F (27°C). In September, Fergusonville's temperature tends to fall to an average low of 61.7°F (16.5°C) during the night.Heat index
In September, the heat index is evaluated at 84.2°F (29°C). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.Be advised, the heat index considers values for conditions in shade and with a light breeze. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. 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 largely significant for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Humidity
In September, the average relative humidity is 75%.Rainfall
The month with the least rainfall in Fergusonville is September, when the rain falls for 12.7 days and typically collects 1.5" (38mm) of precipitation.Snowfall
In Fergusonville, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:43 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:56 pm EDT.
Sunshine
The average sunshine in September is 8.8h.UV index
In Fergusonville, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow in Fergusonville?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Fergusonville, VA
- Average high temperature in September: 80.6°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (44.6°F).
- Average low temperature in September: 61.7°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in September
Fergusonville, 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
Fergusonville, 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
Fergusonville, 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 (70%).
Average rainfall in September
Fergusonville, VA
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in September
Fergusonville, VA
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in September
Fergusonville, VA
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.97").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Fergusonville, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.9 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
Fergusonville, 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 5min
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
Fergusonville, VA
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is May (13 days).
Average UV index in September
Fergusonville, 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
Fergusonville, 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
Fergusonville, 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).
Fergusonville, Virginia, USA
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