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
September's arrival subtly correlates with a reduction in the average high-temperature, down from a tropical 88.2°F (31.2°C) in August to a warm 81.3°F (27.4°C). Throughout September, Cascade registers a consistent average low-temperature of 61°F (16.1°C).Heat index
The heat index for September is estimated at a hot 86°F (30°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', reflects the feeling of heat when considering both air temperature and humidity. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
In Cascade, the average relative humidity in September is 74%.Rainfall
September is the month with the least rainfall. Rain falls for 12.1 days and accumulates 1.69" (43mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September in Cascade, Virginia, is 12h and 24min.On the first day of September in Cascade, sunrise is at 6:50 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:03 pm EDT.
Sunshine
In Cascade, the average sunshine in September is 8.6h.UV index
In Cascade, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Cascade?
What is the average humidity in September in Cascade?
What is the driest month in Cascade?
How much does it rain in Cascade in September?
When it does not snow in Cascade?
What is the average length of the day in September in Cascade?
What time are sunrise and sunset in September in Cascade?
How many hours of sunshine does Cascade have in September?
What is the UV index reading in September in Cascade?
Average temperature in September
Cascade, VA
- Average high temperature in September: 81.3°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (45.5°F).
- Average low temperature in September: 61°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in September
Cascade, VA
- Average pressure in September: 30.05"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
Cascade, VA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in September
Cascade, VA
- Average humidity in September: 74%
The months with the highest relative humidity are May and December (75%).
The month with the lowest relative humidity is July (68%).
Average rainfall in September
Cascade, VA
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in September
Cascade, VA
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in September
Cascade, VA
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.17").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Cascade, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 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
Cascade, VA
- Average daylight in September: 12h and 2min
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 4min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Cascade, VA
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (13.3 days).
Average UV index in September
Cascade, 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 and December (UV index 2).
Average cloud cover in September
Cascade, VA
- Average cloud cover in September: 37
The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in September
Cascade, VA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Cascade, Virginia, USA
Weather forecast for your location
2. Allow the app to use your location