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 records an average high-temperature of a still moderately hot 75.6°F (24.2°C), indicating a minor variation from the preceding month. During the month of September, the temperature generally drops to a low average of 57.2°F (14°C).Humidity
In September, the average relative humidity is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 14.5 days and typically collects 2.17" (55mm) of precipitation.Snowfall
In Arlington, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 7:11 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 7:25 pm EDT.
Sunshine
In Arlington, the average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 4 during September leads to these advisories:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Frequently asked questions
What is the average September temperature in Arlington?
What is the average humidity in September in Arlington?
What is the driest month in Arlington?
How many days does it rain in September in Arlington?
When it does not snow in Arlington?
Does it snow in Arlington in September?
What is the average length of the day in September in Arlington?
When is the sunrise / sunset in September in Arlington?
How many hours of sunshine does Arlington have in September?
What is the UV index intensity in September in Arlington?
Average temperature in September
Arlington, IN
- Average high temperature in September: 75.6°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in September: 57.2°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 (21.6°F).
Average pressure in September
Arlington, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Arlington, IN
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in September
Arlington, IN
- Average humidity in September: 78%
The months with the highest relative humidity are January, July and December (82%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in September
Arlington, IN
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in September
Arlington, IN
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is February (9.1 days).
Average snowfall in September
Arlington, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Arlington, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Arlington, IN
- 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 24min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Arlington, IN
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is October (15.7 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in September
Arlington, IN
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Arlington, IN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Arlington, IN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, September, October and November (6mi).
The months with the lowest visibility are January, February, July, August and December (5mi).
Arlington, Indiana, USA
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