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
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a warm 84.6°F (29.2°C) to a still moderately hot 77.4°F (25.2°C). Old Welbourne reports an average low-temperature of 58.3°F (14.6°C) during the nights of September.Humidity
The average relative humidity in September in Old Welbourne is 77%.Rainfall
The month with the least rainfall in Old Welbourne is September, when the rain falls for 13.7 days and typically collects 1.93" (49mm) of precipitation.Snowfall
In Old Welbourne, snow does not fall in May through September.Daylight
The average length of the day in September in Old Welbourne is 12h and 26min.On the first day of the month, sunrise is at 6:40 am and sunset at 7:41 pm. On the last day of September, in Old Welbourne, sunrise is at 7:06 am and sunset at 6:55 pm EDT.
Sunshine
The average sunshine in September in Old Welbourne is 8.9h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 4 in September leads to these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What are the temperatures in Old Welbourne in September?
What is the average humidity in September in Old Welbourne?
What is the driest month in Old Welbourne?
How much does it rain in Old Welbourne in September?
When it does not snow in Old Welbourne?
Does it snow in Old Welbourne in September?
What is the average length of the day in September in Old Welbourne?
What time are sunrise and sunset in September in Old Welbourne?
How long on average sun shines in September in Old Welbourne?
What is the UV index intensity in September in Old Welbourne?
Average temperature in September
Old Welbourne, VA
- Average high temperature in September: 77.4°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in September: 58.3°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in September
Old Welbourne, 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
Old Welbourne, VA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is March (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in September
Old Welbourne, VA
- Average humidity in September: 77%
The months with the highest relative humidity are October and December (78%).
The month with the lowest relative humidity is July (73%).
Average rainfall in September
Old Welbourne, VA
- Average rainfall in September: 1.93"
The wettest months (with the highest rainfall) are May and August (3.35").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Old Welbourne, VA
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (10.1 days).
Average snowfall in September
Old Welbourne, VA
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Old Welbourne, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Old Welbourne, 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 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).
Average sunshine days in September
Old Welbourne, VA
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in September
Old Welbourne, 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
Old Welbourne, VA
- Average cloud cover in September: 36
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Old Welbourne, 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).
Old Welbourne, Virginia, USA
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