September weather forecastMassanutten, VA
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Massanutten, Virginia, with an average temperature varying between 55.6°F (13.1°C) and 75.9°F (24.4°C).Temperature
The move into September indicates a slight reduction in the average high-temperature, down from August's 82.9°F (28.3°C) to a still warm 75.9°F (24.4°C). Massanutten throughout September, experiences an average nighttime temperature of 55.6°F (13.1°C).Humidity
The months with the highest humidity are May, September, October and December, with an average relative humidity of 78%.Rainfall
September is the month with the least rainfall. Rain falls for 4.6 days and accumulates 0.16" (4mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:10 am and sunset at 6:58 pm EDT.
Sunshine
In Massanutten, the average sunshine in September is 8.4h.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 unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 4 in September suggests the following recommendations:
Exercise prevention - Warding off sunburn is urged. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. 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
Massanutten, VA
- Average high temperature in September: 75.9°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (39.2°F).
- Average low temperature in September: 55.6°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in September
Massanutten, VA
- Average pressure in September: 30.05"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
Massanutten, VA
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in September
Massanutten, VA
- Average humidity in September: 78%
The months with the highest relative humidity are May, September, October and December (78%).
The months with the lowest relative humidity are January and July (74%).
Average rainfall in September
Massanutten, VA
- Average rainfall in September: 0.16"
The wettest month (with the highest rainfall) is August (0.71").
The driest month (with the least rainfall) is September (0.16").
Average rainfall days in September
Massanutten, VA
- Average rainfall days in September: 4.6 days
The month with the highest number of rainy days is April (7.3 days).
The months with the least rainy days are January and November (3.8 days).
Average snowfall in September
Massanutten, VA
- Average snowfall in September: 0"
The month with the highest snowfall is March (0.51").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Massanutten, VA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (2.4 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
Massanutten, VA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
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 6min).
Average sunshine days in September
Massanutten, VA
- Average sunshine days in September: 23.6 days
The month with the most sunshine days is October (25.4 days).
The months with the least sunshine days are April, May and August (21.5 days).
Average UV index in September
Massanutten, 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
Massanutten, VA
- Average cloud cover in September: 41
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Massanutten, VA
- Average visibility in September: 4mi
The months with the highest visibility are July and November (6mi).
The month with the lowest visibility is September (4mi).
