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 advent of September denotes an average high-temperature of a still moderately hot 76.8°F (24.9°C), subtly different from August's 82°F (27.8°C). Rosedale reports a considerable drop from daytime temperatures in September, recording an average nighttime figure of 54°F (12.2°C).Humidity
In Rosedale, the average relative humidity in September is 78%.Rainfall
September is the month with the least rainfall in Rosedale, Virginia. Rain falls for 13.4 days and accumulates 1.1" (28mm) of precipitation.Snowfall
In Rosedale, snow does not fall in May through September.Daylight
The average length of the day in September in Rosedale is 12h and 25min.On the first day of September, sunrise is at 6:59 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:12 pm EDT.
Sunshine
The average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Rosedale have in September?
How high is the UV index in September?
Average temperature in September
Rosedale, VA
- Average high temperature in September: 76.8°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in September: 54°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in September
Rosedale, 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 (29.99"Hg).
Average wind speed in September
Rosedale, VA
- Average wind speed in September: 4.3mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in September
Rosedale, VA
- Average humidity in September: 78%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
Rosedale, VA
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is July (2.17").
The driest month (with the least rainfall) is September (1.1").
Average rainfall days in September
Rosedale, VA
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (10.4 days).
Average snowfall in September
Rosedale, VA
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.11").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Rosedale, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rosedale, VA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 8h and 2min
The months with the most sunshine are June and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Rosedale, VA
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is February (9.7 days).
Average UV index in September
Rosedale, VA
- Average UV index in September: 4
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Rosedale, VA
- Average cloud cover in September: 38
The months with the most cloud cover are January and February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Rosedale, VA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Rosedale, Virginia, USA
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