September weather forecastMormon Lake, AZ
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Mormon Lake, Arizona, with an average temperature fluctuating between 77.5°F (25.3°C) and 55.2°F (12.9°C).Temperature
In Mormon Lake, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's 83.3°F (28.5°C) to a still moderately hot 77.5°F (25.3°C). Mormon Lake documents a substantial deviation from daytime highs with a consistent low-temperature of 55.2°F (12.9°C) during September nights.Humidity
In Mormon Lake, the average relative humidity in September is 43%.Rainfall
In September, the rain falls for 8.9 days. Throughout September, 0.87" (22mm) of precipitation is accumulated. In Mormon Lake, during the entire year, the rain falls for 86 days and collects up to 11.65" (296mm) of precipitation.Snowfall
In Mormon Lake, snow does not fall in May through October.Daylight
The average length of the day in September in Mormon Lake is 12h and 23min.On the first day of the month, sunrise is at 5:59 am and sunset at 6:51 pm. On the last day of September, in Mormon Lake, Arizona, sunrise is at 6:20 am and sunset at 6:10 pm MST.
Sunshine
The average sunshine in September is 9.7h.UV index
In Mormon Lake, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mormon Lake, AZ
- Average high temperature in September: 77.5°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (46°F).
- Average low temperature in September: 55.2°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is December (27.9°F).
Average pressure in September
Mormon Lake, AZ
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Mormon Lake, AZ
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in September
Mormon Lake, AZ
- Average humidity in September: 43%
The month with the highest relative humidity is January (62%).
The month with the lowest relative humidity is June (24%).
Average rainfall in September
Mormon Lake, AZ
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is July (2.28").
The driest month (with the least rainfall) is June (0.16").
Average rainfall days in September
Mormon Lake, AZ
- Average rainfall days in September: 8.9 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is June (2.8 days).
Average snowfall in September
Mormon Lake, AZ
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.68").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Mormon Lake, AZ
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (3.5 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in September /
Average sunshine in September
Mormon Lake, 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 54min).
- 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 42min).
Average sunshine days in September
Mormon Lake, AZ
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is June (26 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in September
Mormon Lake, 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
Mormon Lake, AZ
- Average cloud cover in September: 11
The month with the most cloud cover is December (Cloud cover 24).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in September
Mormon Lake, 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).





