September weather forecastSaint Michaels, AZ
September
Weather in September
September, the first month of the autumn in Saint Michaels, is also a moderately hot month, with an average temperature varying between 54.5°F (12.5°C) and 73.8°F (23.2°C).Temperature
Saint Michaels's transition into September involves a gentle shift in temperature, receding from a warm 80.2°F (26.8°C) in August to a still moderately hot 73.8°F (23.2°C). The mean low-temperature during September nights is a fresh 54.5°F (12.5°C).Humidity
In Saint Michaels, the average relative humidity in September is 43%.Rainfall
In Saint Michaels, during September, the rain falls for 11.9 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Saint Michaels, during the entire year, the rain falls for 90.1 days and collects up to 11.93" (303mm) of precipitation.Snowfall
In Saint Michaels, Arizona, snow does not fall in June through September.Daylight
In Saint Michaels, the average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:49 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 7:01 pm MDT.
Sunshine
In Saint Michaels, the average sunshine in September is 10.8h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 5 in September leads to these recommendations:
Adopt protective measures - It is advised to guard against sun damage. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Saint Michaels, AZ
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (38.5°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in September
Saint Michaels, AZ
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Saint Michaels, AZ
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in September
Saint Michaels, AZ
- Average humidity in September: 43%
The month with the highest relative humidity is January (70%).
The month with the lowest relative humidity is June (23%).
Average rainfall in September
Saint Michaels, AZ
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is July (2.44").
The driest month (with the least rainfall) is June (0.35").
Average rainfall days in September
Saint Michaels, AZ
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in September
Saint Michaels, AZ
- Average snowfall in September: 0"
The month with the highest snowfall is December (5.55").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Saint Michaels, AZ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Saint Michaels, AZ
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 10h and 48min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 6h and 24min).
Average sunshine days in September
Saint Michaels, AZ
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is November (23.7 days).
The month with the least sunshine days is July (8.3 days).
Average UV index in September
Saint Michaels, AZ
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Saint Michaels, AZ
- Average cloud cover in September: 13
The month with the most cloud cover is January (Cloud cover 29).
The month with the least cloud cover is June (Cloud cover 10).
Average visibility in September
Saint Michaels, AZ
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
