September weather forecastCave Spring, VA
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Cave Spring, Virginia, with temperature in the range of an average low of 56.3°F (13.5°C) and an average high of 77.9°F (25.5°C).Temperature
The average high-temperature shows a slight dip in September, from August's warm 84.4°F (29.1°C) to a still moderately hot 77.9°F (25.5°C). Nightly average temperatures in September reveal a significant dip from daytime highs, registering a consistent a moderate 56.3°F (13.5°C).Humidity
May, September and December, with an average relative humidity of 77%, are the most humid months.Rainfall
The month with the least rainfall in Cave Spring is September, when the rain falls for 12.9 days and typically collects 1.42" (36mm) of precipitation.Snowfall
May through October are months without snowfall in Cave Spring.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:51 am and sunset at 7:48 pm. On the last day of September, in Cave Spring, sunrise is at 7:15 am and sunset at 7:04 pm EDT.
Sunshine
The average sunshine in September in Cave Spring, Virginia, is 8.4h.UV index
In Cave Spring, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 5 in September transforms into this advice:
Be vigilant - Preventing sunburn is recommended. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cave Spring, VA
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in September
Cave Spring, VA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Cave Spring, VA
- Average wind speed in September: 4.2mph
The windiest month (with the highest average wind speed) is February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in September
Cave Spring, VA
- Average humidity in September: 77%
The months with the highest relative humidity are May, September and December (77%).
The month with the lowest relative humidity is July (72%).
Average rainfall in September
Cave Spring, VA
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in September
Cave Spring, VA
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (7 days).
Average snowfall in September
Cave Spring, VA
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Cave Spring, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Cave Spring, VA
- Average daylight in September: 12h and 24min
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 24min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Cave Spring, VA
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in September
Cave Spring, 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, November and December (UV index 2).
Average cloud cover in September
Cave Spring, VA
- Average cloud cover in September: 40
The months with the most cloud cover are February and March (Cloud cover 44).
The months with the least cloud cover are June and July (Cloud cover 31).
Average visibility in September
Cave Spring, VA
- Average visibility in September: 5mi
The months with the highest visibility are March, April, June, July and November (6mi).
The months with the lowest visibility are January, February, May, August, September, October and December (5mi).
