September weather forecastDamascus, VA
September
Weather in September
September, the first month of the autumn in Damascus, is still a warm month, with temperature in the range of an average low of 53.6°F (12°C) and an average high of 75.7°F (24.3°C).Temperature
Damascus experiences a recorded average high-temperature of a still warm 75.7°F (24.3°C) in September, closely aligned with August's 80.6°F (27°C). Damascus notes a substantial temperature decline from the daytime peaks throughout September, with an average nighttime temperature of 53.6°F (12°C).Humidity
The average relative humidity in September is 79%.Rainfall
September is the month with the least rainfall. Rain falls for 14.2 days and accumulates 1.38" (35mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Damascus, the average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:58 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:11 pm EDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 4 during September translates into the following directions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Damascus, VA
- Average high temperature in September: 75.7°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (39.4°F).
- Average low temperature in September: 53.6°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in September
Damascus, 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 (29.99"Hg).
Average wind speed in September
Damascus, VA
- Average wind speed in September: 4.4mph
The windiest months (with the highest average wind speed) are January and April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in September
Damascus, VA
- Average humidity in September: 79%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
Damascus, VA
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is February (3.43").
The driest month (with the least rainfall) is September (1.38").
Average rainfall days in September
Damascus, VA
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is May (21.8 days).
The month with the least rainy days is November (11.3 days).
Average snowfall in September
Damascus, VA
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Damascus, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Damascus, 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 30min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in September
Damascus, VA
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is October (16.2 days).
The month with the least sunshine days is May (6.8 days).
Average UV index in September
Damascus, VA
- Average UV index in September: 4
The month with the highest UV index is 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
Damascus, VA
- Average cloud cover in September: 38
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are June and August (Cloud cover 35).
Average visibility in September
Damascus, VA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
