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
The average high-temperature slightly decreases in September, shifting from a warm 83.8°F (28.8°C) in August to a still moderately hot 76.3°F (24.6°C). The average nighttime temperature in Delaplane, Virginia, lowers to a refreshing 56.7°F (13.7°C) throughout September.Humidity
In Delaplane, the average relative humidity in September is 78%.Rainfall
In September, the rain falls for 13.6 days. Throughout September, 2.01" (51mm) of precipitation is accumulated. Throughout the year, in Delaplane, Virginia, there are 166.6 rainfall days, and 29.57" (751mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Delaplane, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:41 pm. On the last day of September, sunrise is at 7:07 am and sunset at 6:55 pm EDT.
Sunshine
In September, the average sunshine in Delaplane is 8.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 4 in September suggests the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
What is the average September temperature in Delaplane?
What is the average humidity in September in Delaplane?
How many days does it rain in September in Delaplane?
When it does not snow in Delaplane?
Does it snow in Delaplane in September?
What is the average length of the day in September in Delaplane?
When are sunrise and sunset in September in Delaplane?
How long on average sun shines in September in Delaplane?
How high is the UV index in September in Delaplane?
Average temperature in September
Delaplane, VA
- Average high temperature in September: 76.3°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in September: 56.7°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in September
Delaplane, VA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Delaplane, VA
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is March (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Delaplane, VA
- Average humidity in September: 78%
The month with the highest relative humidity is October (79%).
The months with the lowest relative humidity are April, June and July (74%).
Average rainfall in September
Delaplane, VA
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days in September
Delaplane, VA
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in September
Delaplane, VA
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Delaplane, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Delaplane, VA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Delaplane, VA
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is November (19.1 days).
The months with the least sunshine days are May and July (10.8 days).
Average UV index in September
Delaplane, VA
- Average UV index in September: 4
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, November and December (UV index 2).
Average cloud cover in September
Delaplane, VA
- Average cloud cover in September: 39
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Delaplane, VA
- Average visibility in September: 5mi
The months with the highest visibility are April, June, July, August, November and December (6mi).
The months with the lowest visibility are January, February, March, May, September and October (5mi).
Delaplane, Virginia, USA
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