September weather forecastStotonyak, AZ
September
Weather in September
September, the first month of the autumn in Stotonyak, is also a hot month, with an average temperature ranging between min 73.6°F (23.1°C) and max 91.2°F (32.9°C).Temperature
With September's arrival, Stotonyak's weather records an average high-temperature of a hot 91.2°F (32.9°C), marking little difference from August's 95.5°F (35.3°C). Stotonyak in September anticipates an average nighttime temperature of 73.6°F (23.1°C).Humidity
In Stotonyak, the average relative humidity in September is 39%.Rainfall
In Stotonyak, Arizona, during September, the rain falls for 7.4 days and regularly aggregates up to 0.83" (21mm) of precipitation. Throughout the year, there are 52.9 rainfall days, and 6.46" (164mm) of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 21min.On the first day of the month, sunrise is at 6:05 am and sunset at 6:53 pm. On the last day of September, sunrise is at 6:23 am and sunset at 6:15 pm MST.
Sunshine
In September, the average sunshine is 9.7h.UV index
In September, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 7 during September translates into these guidelines:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. 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
Average temperature in September
Stotonyak, AZ
- Average high temperature in September: 91.2°F
The warmest month (with the highest average high temperature) is June (97.3°F).
The month with the lowest average high temperature is December (62.4°F).
- Average low temperature in September: 73.6°F
The month with the highest average low temperature is July (78.6°F).
The coldest month (with the lowest average low temperature) is December (45.5°F).
Average pressure in September
Stotonyak, AZ
- Average pressure in September: 29.83"Hg
The month with the highest atmospheric pressure is January (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.78"Hg).
Average wind speed in September
Stotonyak, AZ
- Average wind speed in September: 6.7mph
The windiest month (with the highest average wind speed) is May (9.3mph).
The calmest month (with the lowest average wind speed) is January (6.3mph).
Average humidity in September
Stotonyak, AZ
- Average humidity in September: 39%
The month with the highest relative humidity is December (44%).
The month with the lowest relative humidity is June (20%).
Average rainfall in September
Stotonyak, AZ
- Average rainfall in September: 0.83"
The wettest month (with the highest rainfall) is August (1.38").
The driest month (with the least rainfall) is May (0.04").
Average rainfall days in September
Stotonyak, AZ
- Average rainfall days in September: 7.4 days
The month with the highest number of rainy days is July (11.5 days).
The month with the least rainy days is May (1 days).
Average daylight in September /
Average sunshine in September
Stotonyak, AZ
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 9h and 42min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in September
Stotonyak, AZ
- Average sunshine days in September: 21.4 days
The month with the most sunshine days is May (29.8 days).
The month with the least sunshine days is August (17.2 days).
Average UV index in September
Stotonyak, AZ
- Average UV index in September: 7
The months with the highest UV index are July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Stotonyak, AZ
- Average cloud cover in September: 13
The month with the most cloud cover is December (Cloud cover 20).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in September
Stotonyak, 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).





