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
Keene Mill Heights, Virginia, records a mild change in average high-temperature during September, easing from a moderately hot 85.6°F (29.8°C) in August to a still warm 78.6°F (25.9°C). During the month of September, an average low-temperature of 60.6°F (15.9°C) is recorded in Keene Mill Heights.Humidity
In September, the average relative humidity in Keene Mill Heights, Virginia, is 75%.Rainfall
In Keene Mill Heights, in September, during 13.2 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. In Keene Mill Heights, during the entire year, the rain falls for 166.5 days and collects up to 32.76" (832mm) of precipitation.Snowfall
In Keene Mill Heights, snow does not fall in May through October.Daylight
In September, the average length of the day in Keene Mill Heights, Virginia, is 12h and 26min.On the first day of September in Keene Mill Heights, sunrise is at 6:38 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:52 pm EDT.
Sunshine
In Keene Mill Heights, the average sunshine in September is 9h.UV index
In September, the average daily maximum UV index in Keene Mill Heights is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum UV index of 5 in September translates into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Frequently asked questions
What are the temperatures in Keene Mill Heights in September?
What is the average humidity in September in Keene Mill Heights?
How much does it rain in Keene Mill Heights in September?
When it does not snow in Keene Mill Heights?
How many hours of daylight does Keene Mill Heights have in September?
What time are sunrise and sunset in September in Keene Mill Heights?
How many hours of sunshine does Keene Mill Heights have in September?
What is the UV index intensity in September in Keene Mill Heights?
Average temperature in September
Keene Mill Heights, VA
- Average high temperature in September: 78.6°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in September: 60.6°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in September
Keene Mill Heights, 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 (29.95"Hg).
Average wind speed in September
Keene Mill Heights, VA
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is March (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Keene Mill Heights, VA
- Average humidity in September: 75%
The months with the highest relative humidity are October and December (77%).
The month with the lowest relative humidity is July (71%).
Average rainfall in September
Keene Mill Heights, VA
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is January (2.09").
Average rainfall days in September
Keene Mill Heights, VA
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in September
Keene Mill Heights, VA
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.58").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Keene Mill Heights, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.2 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
Keene Mill Heights, VA
- Average daylight in September: 12h and 2min
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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 12min).
Average sunshine days in September
Keene Mill Heights, VA
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is November (19.3 days).
The months with the least sunshine days are May and July (10.5 days).
Average UV index in September
Keene Mill Heights, 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, November and December (UV index 2).
Average cloud cover in September
Keene Mill Heights, VA
- Average cloud cover in September: 36
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Keene Mill Heights, VA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Keene Mill Heights, Virginia, USA
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