Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
With the arrival of September, Superior notices a mild change in the average high-temperature, sliding from August's 94.3°F (34.6°C) to a still tropical 88.9°F (31.6°C). Throughout September, the average low-temperature records at a pleasant 70.7°F (21.5°C).Humidity
In September, the average relative humidity is 38%.Rainfall
In Superior, during September, the rain falls for 10.9 days and regularly aggregates up to 1.89" (48mm) of precipitation. In Superior, Arizona, during the entire year, the rain falls for 85.7 days and collects up to 14.29" (363mm) of precipitation.Snowfall
Months with snowfall are January through March, September and December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Superior, 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 in Superior is 12h and 22min.On the first day of the month, sunrise is at 5:59 am and sunset at 6:49 pm. On the last day of September, in Superior, sunrise is at 6:18 am and sunset at 6:09 pm MST.
Sunshine
The average sunshine in September is 9.7h.UV index
In Superior, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum UV index of 7 in September translates into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Frequently asked questions
How hot is it in Superior in September?
What is the average humidity in September in Superior?
How many days does it rain in September in Superior?
When does it start snowing in Superior?
What is the average length of the day in September in Superior?
When is the sunrise / sunset in September in Superior?
How long on average sun shines in September in Superior?
How high is the UV index in September in Superior?
Average temperature in September
Superior, 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
Superior, 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
Superior, 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
Superior, 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
Superior, 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
Superior, 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
Superior, 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
Superior, 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
Superior, AZ
- Average daylight in September: 12h and 2min
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 4min
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
Superior, 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
Superior, 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
Superior, 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
Superior, 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).
Superior, Arizona, USA
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