September weather forecastAztec, AZ
September
Weather in September
September, the first month of the autumn in Aztec, is still a very hot month, with temperature in the range of an average low of 81°F (27.2°C) and an average high of 98.2°F (36.8°C).Temperature
September signifies a gentle decline in Aztec's average high-temperature, easing from a sweltering 103.6°F (39.8°C) in August to a still fiery hot 98.2°F (36.8°C). Aztec records a steady low-temperature average of 81°F (27.2°C) during September.Humidity
The average relative humidity in September in Aztec is 31%.Rainfall
In Aztec, in September, it is raining for 6 days, with typically 0.51" (13mm) of accumulated precipitation. Throughout the year, in Aztec, there are 39.5 rainfall days, and 4.06" (103mm) of precipitation is accumulated.Daylight
In Aztec, the average length of the day in September is 12h and 22min.On the first day of September in Aztec, sunrise is at 6:08 am and sunset at 6:58 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 6:19 pm MST.
Sunshine
In September, the average sunshine is 9.7h.UV index
In Aztec, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Aztec, AZ
- Average high temperature in September: 98.2°F
The warmest month (with the highest average high temperature) is July (103.8°F).
The month with the lowest average high temperature is December (64.8°F).
- Average low temperature in September: 81°F
The month with the highest average low temperature is August (86.2°F).
The coldest months (with the lowest average low temperature) are January and December (49.6°F).
Average pressure in September
Aztec, AZ
- Average pressure in September: 29.78"Hg
The month with the highest atmospheric pressure is January (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.73"Hg).
Average wind speed in September
Aztec, AZ
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is July (8.6mph).
The calmest month (with the lowest average wind speed) is December (5.6mph).
Average humidity in September
Aztec, AZ
- Average humidity in September: 31%
The month with the highest relative humidity is December (40%).
The month with the lowest relative humidity is June (21%).
Average rainfall in September
Aztec, AZ
- Average rainfall in September: 0.51"
The wettest month (with the highest rainfall) is July (0.75").
The driest month (with the least rainfall) is May (0.04").
Average rainfall days in September
Aztec, AZ
- Average rainfall days in September: 6 days
The month with the highest number of rainy days is July (8.2 days).
The month with the least rainy days is May (1 days).
Average daylight in September /
Average sunshine in September
Aztec, 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: 7h and 6min).
Average sunshine days in September
Aztec, AZ
- Average sunshine days in September: 22.3 days
The month with the most sunshine days is May (29.7 days).
The month with the least sunshine days is July (19.3 days).
Average UV index in September
Aztec, AZ
- Average UV index in September: 7
The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are November and December (UV index 4).
Average cloud cover in September
Aztec, AZ
- Average cloud cover in September: 9
The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in September
Aztec, 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).





