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 into September involves a small decrease in the average high-temperature, dipping slightly from 85.1°F (29.5°C) in August to a still warm 78.3°F (25.7°C). Arlington records a consistent low-temperature of 58.1°F (14.5°C) during September nights.Humidity
The months with the highest humidity are May, September and December, with an average relative humidity of 76%.Rainfall
September and October are months with the least rain when the rain falls for 14.2 days and typically aggregates up to 2.13" (54mm) of rain.Snowfall
In Arlington, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:55 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:07 pm EDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What are the most humid months?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Arlington, NC
- Average high temperature in September: 78.3°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (43.5°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).
Average pressure in September
Arlington, NC
- 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
Arlington, NC
- Average wind speed in September: 4.6mph
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
Arlington, NC
- 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 (71%).
Average rainfall in September
Arlington, NC
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is April (3.46").
The driest months (with the least rainfall) are September and October (2.13").
Average rainfall days in September
Arlington, NC
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in September
Arlington, NC
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.68").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Arlington, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 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
Arlington, NC
- 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in September
Arlington, NC
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in September
Arlington, NC
- 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 and December (UV index 2).
Average cloud cover in September
Arlington, NC
- Average cloud cover in September: 35
The months with the most cloud cover are February and March (Cloud cover 42).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in September
Arlington, NC
- 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).
Arlington, North Carolina, USA
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