September weather forecastSmelter Town, AZ
September
Weather in September
The first month of the autumn, September, is also a hot month in Smelter Town, Arizona, with temperature in the range of an average high of 88.9°F (31.6°C) and an average low of 70.7°F (21.5°C).Temperature
The average high-temperature slightly decreases in September, shifting from 94.3°F (34.6°C) in August to a still hot 88.9°F (31.6°C). An average low-temperature of 70.7°F (21.5°C) is observed in Smelter Town during the September nights.Humidity
In Smelter Town, the average relative humidity in September is 38%.Rainfall
In Smelter Town, Arizona, in September, during 10.9 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. In Smelter Town, during the entire year, the rain falls for 85.7 days and collects up to 14.29" (363mm) of precipitation.Snowfall
January through March, September and December are months with snowfall. September is the first month it typically snows in Smelter Town. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Smelter Town, during the entire year, snow falls for 1.7 days and aggregates up to 1.61" (41mm) of snow.Daylight
In September, the average length of the day is 12h and 22min.On the first day of September, sunrise is at 5:59 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 6:10 pm MST.
Sunshine
The average sunshine in September is 9.7h.UV index
The average daily maximum UV index in September in Smelter Town, Arizona, is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 7 during September morphs into the following directions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Smelter Town, AZ
- Average high temperature in September: 88.9°F
The warmest months (with the highest average high temperature) are June and July (95.5°F).
The month with the lowest average high temperature is December (57.9°F).
- Average low temperature in September: 70.7°F
The months with the highest average low temperature are July and August (76.5°F).
The coldest months (with the lowest average low temperature) are January and December (41.4°F).
Average pressure in September
Smelter Town, AZ
- Average pressure in September: 29.91"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Smelter Town, AZ
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is May (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in September
Smelter Town, AZ
- Average humidity in September: 38%
The month with the highest relative humidity is December (49%).
The month with the lowest relative humidity is June (20%).
Average rainfall in September
Smelter Town, AZ
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is August (2.28").
The driest month (with the least rainfall) is June (0.2").
Average rainfall days in September
Smelter Town, AZ
- Average rainfall days in September: 10.9 days
The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is June (3.3 days).
Average snowfall in September
Smelter Town, AZ
- Average snowfall in September: 0.04"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, May, June, July, August, October and November (0").
Average snowfall days in September
Smelter Town, AZ
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (0.7 days).
The months with the least snowfall days are April, May, June, July, August, October and November (0 days).
Average daylight in September /
Average sunshine in September
Smelter Town, 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 August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in September
Smelter Town, AZ
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is May (27 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in September
Smelter Town, AZ
- Average UV index in September: 7
The month with the highest UV index is June (UV index 8).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in September
Smelter Town, AZ
- Average cloud cover in September: 13
The month with the most cloud cover is December (Cloud cover 24).
The month with the least cloud cover is June (Cloud cover 7).
Average visibility in September
Smelter Town, 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).





