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
In September, the meteorological conditions change slightly, with the average high-temperature moving from 81.7°F (27.6°C) in August to a still moderately hot 76.1°F (24.5°C). A stark contrast in day to night temperatures can be seen in Red Ash in September, with an average low-temperature of 53.6°F (12°C).Humidity
The average relative humidity in September is 78%.Rainfall
September is the month with the least rainfall in Red Ash. Rain falls for 13.2 days and accumulates 1.14" (29mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Red Ash, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:58 am and sunset at 7:55 pm. On the last day of September, in Red Ash, sunrise is at 7:22 am and sunset at 7:11 pm EDT.
Sunshine
In Red Ash, the average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index in Red Ash, Virginia, is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
What are the temperatures in Red Ash in September?
What is the average humidity in September in Red Ash?
What is the driest month in Red Ash?
How many days does it rain in September in Red Ash?
When it does not snow in Red Ash?
Does it snow in Red Ash in September?
How many hours of daylight does Red Ash have in September?
When is the sunrise / sunset in September in Red Ash?
How long on average sun shines in September in Red Ash?
What is the UV index reading in September in Red Ash?
Average temperature in September
Red Ash, VA
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in September: 53.6°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in September
Red Ash, 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
Red Ash, VA
- Average wind speed in September: 4.5mph
The windiest months (with the highest average wind speed) are January, February and April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Red Ash, VA
- Average humidity in September: 78%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
Red Ash, VA
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is February (2.72").
The driest month (with the least rainfall) is September (1.14").
Average rainfall days in September
Red Ash, VA
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Red Ash, VA
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Red Ash, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Red Ash, VA
- Average daylight in September: 12h and 2min
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 2min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Red Ash, VA
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is May (10.3 days).
Average UV index in September
Red Ash, VA
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Red Ash, VA
- Average cloud cover in September: 39
The months with the most cloud cover are January and February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Red Ash, 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).
Red Ash, Virginia, USA
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