September weather forecastHidden Acres, VA
September
Weather in September
The first month of the autumn, September, is still a warm month in Hidden Acres, Virginia, with an average temperature varying between 81.1°F (27.3°C) and 63°F (17.2°C).Temperature
September reveals a small adjustment in temperature, transitioning from an average high of a hot 87.1°F (30.6°C) in August to a warm 81.1°F (27.3°C). During September, Hidden Acres sees a mean low-temperature of 63°F (17.2°C).Heat index
The heat index value for September is calculated to be a hot 86°F (30°C). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.Heat index values are typically calculated for conditions of shade and a light breeze. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
In September, the average relative humidity is 77%.Rainfall
September is the month with the least rainfall in Hidden Acres. Rain falls for 12 days and accumulates 1.85" (47mm) of precipitation.Snowfall
April through October are months without snowfall in Hidden Acres.Daylight
In September, the average length of the day is 12h and 24min.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 7:06 am and sunset at 6:55 pm EDT.
Sunshine
In Hidden Acres, the average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 5 in September leads to these recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hidden Acres, VA
- Average high temperature in September: 81.1°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in September: 63°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 (31.1°F).
Average pressure in September
Hidden Acres, VA
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Hidden Acres, VA
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is April (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Hidden Acres, VA
- Average humidity in September: 77%
The months with the highest relative humidity are May and December (78%).
The month with the lowest relative humidity is July (73%).
Average rainfall in September
Hidden Acres, VA
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is August (3.03").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
Hidden Acres, VA
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is November (9.6 days).
Average snowfall in September
Hidden Acres, VA
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Hidden Acres, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3 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
Hidden Acres, 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 months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in September
Hidden Acres, 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
Hidden Acres, 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
Hidden Acres, 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
Hidden Acres, VA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
