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 temperature, down from a moderately hot 85.6°F (29.8°C) in August to a still warm 78.6°F (25.9°C). Hollymead anticipates an average minimum temperature of 58.5°F (14.7°C) in the month of September.Humidity
May, September, October and December, with an average relative humidity of 76%, are the most humid months.Rainfall
In Hollymead, during September, the rain falls for 14.1 days and regularly aggregates up to 2.05" (52mm) of precipitation. In Hollymead, during the entire year, the rain falls for 155.9 days and collects up to 27.99" (711mm) of precipitation.Snowfall
In Hollymead, snow does not fall in May through October.Daylight
In Hollymead, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:44 am and sunset at 7:42 pm. On the last day of September, sunrise is at 7:09 am and sunset at 6:57 pm EDT.
Sunshine
In Hollymead, Virginia, the average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Ensure safety - Recommendations to avert sunburn are presented. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What are the most humid months?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Hollymead have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Hollymead, VA
- Average high temperature in September: 78.6°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in September: 58.5°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in September
Hollymead, 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
Hollymead, VA
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Hollymead, VA
- Average humidity in September: 76%
The months with the highest relative humidity are May, September, October and December (76%).
The month with the lowest relative humidity is July (71%).
Average rainfall in September
Hollymead, VA
- Average rainfall in September: 2.05"
The wettest months (with the highest rainfall) are April and May (2.91").
The driest month (with the least rainfall) is January (1.69").
Average rainfall days in September
Hollymead, VA
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in September
Hollymead, VA
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.07").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Hollymead, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.6 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
Hollymead, 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 36min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in September
Hollymead, VA
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is December (19.9 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in September
Hollymead, 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
Hollymead, VA
- Average cloud cover in September: 39
The month with the most cloud cover is March (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 31).
Average visibility in September
Hollymead, VA
- Average visibility in September: 5mi
The months with the highest visibility are February, March, April, June, July, August and November (6mi).
The months with the lowest visibility are January, May, September, October and December (5mi).
Hollymead, Virginia, USA
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