September weather forecastBlue Gap, AZ
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Blue Gap, Arizona, with an average temperature varying between 60.1°F (15.6°C) and 77.7°F (25.4°C).Temperature
With the commencement of September, Blue Gap records a moderate temperature decline, with the average high easing from August's 84.6°F (29.2°C) to a still warm 77.7°F (25.4°C). The average low-temperature of 60.1°F (15.6°C) is witnessed during September.Humidity
In Blue Gap, the average relative humidity in September is 34%.Rainfall
In Blue Gap, in September, during 8.2 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. Throughout the year, there are 75.5 rainfall days, and 7.91" (201mm) of precipitation is accumulated.Snowfall
In Blue Gap, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:52 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:04 pm MDT.
Sunshine
In September, the average sunshine is 10.5h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Make use of precautions - Shielding skin and eyes from injury is a requirement. To protect against the Sun's most potent rays, avoid direct exposure around midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Blue Gap, AZ
- Average high temperature in September: 77.7°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in September: 60.1°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in September
Blue Gap, AZ
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Blue Gap, AZ
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is January (5.5mph).
Average humidity in September
Blue Gap, AZ
- Average humidity in September: 34%
The month with the highest relative humidity is January (67%).
The month with the lowest relative humidity is June (19%).
Average rainfall in September
Blue Gap, AZ
- Average rainfall in September: 0.71"
The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is June (0.2").
Average rainfall days in September
Blue Gap, AZ
- Average rainfall days in September: 8.2 days
The month with the highest number of rainy days is July (13.7 days).
The months with the least rainy days are February and June (3.3 days).
Average snowfall in September
Blue Gap, AZ
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Blue Gap, AZ
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and December (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Blue Gap, AZ
- Average daylight in September: 12h and 24min
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: 10h and 30min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 42min).
Average sunshine days in September
Blue Gap, AZ
- Average sunshine days in September: 18.4 days
The month with the most sunshine days is June (25.4 days).
The month with the least sunshine days is July (13.2 days).
Average UV index in September
Blue Gap, AZ
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Blue Gap, AZ
- Average cloud cover in September: 10
The months with the most cloud cover are January and December (Cloud cover 24).
The month with the least cloud cover is June (Cloud cover 9).
Average visibility in September
Blue Gap, 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).





