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
The transition to September results in a modest reduction in average high-temperature, moving from a moderately hot 85.6°F (29.8°C) in August to a still warm 79.2°F (26.2°C). During the month of September, Henry experiences a steady low-temperature average of 59°F (15°C).Humidity
The months with the highest humidity are May, September and December, with an average relative humidity of 76%.Rainfall
September is the month with the least rainfall. Rain falls for 12.6 days and accumulates 1.42" (36mm) of precipitation.Snowfall
In Henry, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:51 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:04 pm EDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In Henry, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 5 translates into these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
What are September temperatures in Henry?
What are the most humid months in Henry?
What is the average humidity in September in Henry?
What is the driest month in Henry?
How many days does it rain in September in Henry?
When it does not snow in Henry?
What is the average length of the day in September in Henry?
When are sunrise and sunset in September in Henry?
How many hours of sunshine does Henry have in September?
What is the UV index reading in September in Henry?
Average temperature in September
Henry, VA
- Average high temperature in September: 79.2°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (43.3°F).
- Average low temperature in September: 59°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in September
Henry, 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 (29.98"Hg).
Average wind speed in September
Henry, VA
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Henry, VA
- Average humidity in September: 76%
The months with the highest relative humidity are May, September and December (76%).
The month with the lowest relative humidity is July (70%).
Average rainfall in September
Henry, VA
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in September
Henry, VA
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in September
Henry, VA
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Henry, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.1 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
Henry, 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 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in September
Henry, VA
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is May (13 days).
Average UV index in September
Henry, 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 and December (UV index 2).
Average cloud cover in September
Henry, VA
- Average cloud cover in September: 37
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in September
Henry, VA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Henry, Virginia, USA
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