September weather forecastArlington, AZ
September
Weather in September
September, the first month of the autumn in Arlington, is still a very hot month, with an average temperature varying between 78.1°F (25.6°C) and 96.4°F (35.8°C).Temperature
A mild shift in the average high-temperature occurs in September, reducing from 102°F (38.9°C) in August to a still very hot 96.4°F (35.8°C). Arlington, during September, witnesses an average low-temperature of 78.1°F (25.6°C).Humidity
The average relative humidity in September is 30%.Rainfall
The months with the most rainfall are August through October, with an average 1.14" (29mm) of precipitation.Daylight
In Arlington, Arizona, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:05 am and sunset at 6:55 pm. On the last day of September, sunrise is at 6:25 am and sunset at 6:16 pm MST.
Sunshine
In September, the average sunshine is 9.7h.UV index
In Arlington, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Arlington, AZ
- Average high temperature in September: 96.4°F
The warmest month (with the highest average high temperature) is July (102.7°F).
The month with the lowest average high temperature is December (62.6°F).
- Average low temperature in September: 78.1°F
The month with the highest average low temperature is August (84.2°F).
The coldest month (with the lowest average low temperature) is December (46.8°F).
Average pressure in September
Arlington, AZ
- Average pressure in September: 29.85"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.79"Hg).
Average wind speed in September
Arlington, AZ
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are April and May (6.8mph).
The calmest month (with the lowest average wind speed) is December (4.6mph).
Average humidity in September
Arlington, AZ
- Average humidity in September: 30%
The month with the highest relative humidity is December (43%).
The month with the lowest relative humidity is June (17%).
Average rainfall in September
Arlington, AZ
- Average rainfall in September: 1.14"
The wettest months (with the highest rainfall) are August, September and October (1.14").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in September
Arlington, AZ
- Average rainfall days in September: 6.4 days
The month with the highest number of rainy days is July (9.8 days).
The month with the least rainy days is June (0.9 days).
Average daylight in September /
Average sunshine in September
Arlington, AZ
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 42min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Arlington, AZ
- Average sunshine days in September: 20.9 days
The month with the most sunshine days is May (28.7 days).
The month with the least sunshine days is August (18 days).
Average UV index in September
Arlington, AZ
- Average UV index in September: 7
The months with the highest UV index are May, June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Arlington, AZ
- Average cloud cover in September: 10
The month with the most cloud cover is December (Cloud cover 20).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in September
Arlington, AZ
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
