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 brings a slight decrease in the average high-temperature, shifting from a moderately hot 83.8°F (28.8°C) in August to a still warm 76.5°F (24.7°C). During September, Clear Brook's temperature averages to a refreshing 56.5°F (13.6°C) at night.Humidity
In Clear Brook, the average relative humidity in September is 78%.Rainfall
In Clear Brook, Virginia, during September, the rain falls for 14 days and regularly aggregates up to 2.01" (51mm) of precipitation. In Clear Brook, during the entire year, the rain falls for 167.2 days and collects up to 29.61" (752mm) of precipitation.Snowfall
In Clear Brook, Virginia, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:42 pm. On the last day of September, sunrise is at 7:08 am and sunset at 6:56 pm EDT.
Sunshine
In September, the average sunshine in Clear Brook, Virginia, is 8.8h.UV index
In Clear Brook, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 4 during September leads to these instructions:
Prioritize safety - Recommendations to avert sunburn are shared. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
What is the temperature in September in Clear Brook?
What is the average humidity in September in Clear Brook?
How much does it rain in Clear Brook in September?
When it does not snow in Clear Brook?
Does it snow in Clear Brook in September?
How many hours of daylight does Clear Brook have in September?
When are sunrise and sunset in September in Clear Brook?
How long on average sun shines in September in Clear Brook?
What is the UV index intensity in September in Clear Brook?
Average temperature in September
Clear Brook, VA
- Average high temperature in September: 76.5°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in September: 56.5°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in September
Clear Brook, 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
Clear Brook, VA
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is March (7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Clear Brook, VA
- Average humidity in September: 78%
The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is July (73%).
Average rainfall in September
Clear Brook, VA
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is January (1.97").
Average rainfall days in September
Clear Brook, VA
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in September
Clear Brook, VA
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Clear Brook, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Clear Brook, VA
- Average daylight in September: 12h and 2min
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 5min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Clear Brook, VA
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10 days).
Average UV index in September
Clear Brook, 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
Clear Brook, VA
- Average cloud cover in September: 37
The months with the most cloud cover are February, March and December (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Clear Brook, VA
- Average visibility in September: 5mi
The months with the highest visibility are February, April, June, July, August, November and December (6mi).
The months with the lowest visibility are January, March, May, September and October (5mi).
Clear Brook, Virginia, USA
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