September weather forecastStrasburg, VA
September
Weather in September
September, the first month of the autumn in Strasburg, is still a warm month, with temperature in the range of an average low of 55.9°F (13.3°C) and an average high of 76.1°F (24.5°C).Temperature
September signifies a gentle decline in Strasburg's average high-temperature, easing from 82.9°F (28.3°C) in August to a still warm 76.1°F (24.5°C). September generally records an average low-temperature of 55.9°F (13.3°C).Humidity
The average relative humidity in September is 78%.Rainfall
In Strasburg, Virginia, during September, the rain falls for 11.6 days and regularly aggregates up to 0.94" (24mm) of precipitation. Throughout the year, there are 131.9 rainfall days, and 11.81" (300mm) of precipitation is accumulated.Snowfall
In Strasburg, Virginia, snow does not fall in April through October.Daylight
In Strasburg, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:43 pm. On the last day of September, in Strasburg, sunrise is at 7:09 am and sunset at 6:57 pm EDT.
Sunshine
In September, the average sunshine is 8.4h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A daily high UV index of 4 in September leads to these guidelines:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Strasburg, VA
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (38.5°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in September
Strasburg, 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
Strasburg, VA
- Average wind speed in September: 4.5mph
The windiest months (with the highest average wind speed) are February and March (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Strasburg, 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 and July (74%).
Average rainfall in September
Strasburg, VA
- Average rainfall in September: 0.94"
The wettest months (with the highest rainfall) are July and August (1.5").
The driest month (with the least rainfall) is November (0.51").
Average rainfall days in September
Strasburg, VA
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is July (15.4 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Strasburg, VA
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Strasburg, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Strasburg, VA
- Average daylight in September: 12h and 24min
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 24min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Strasburg, VA
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is May (12.7 days).
Average UV index in September
Strasburg, VA
- Average UV index in September: 4
The months with the highest UV index are 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
Strasburg, VA
- Average cloud cover in September: 40
The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Strasburg, VA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, April, June, July and November (6mi).
The months with the lowest visibility are March, May, August, September, October and December (5mi).
