September weather forecastMayer, AZ
September
Weather in September
The first month of the autumn, September, is still a warm month in Mayer, Arizona, with an average temperature fluctuating between 59°F (15°C) and 81.5°F (27.5°C).Temperature
September is marked by a subtle drop in average high-temperatures, transitioning from a hot 87.4°F (30.8°C) in August to a warm 81.5°F (27.5°C). Mayer records a significant temperature drop in September nights, lowering to an average of 59°F (15°C).Heat index
In September, the average heat index is appraised at 80.6°F (27°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humidity
In Mayer, the average relative humidity in September is 40%.Rainfall
In September, the rain falls for 9.2 days. Throughout September, 1.14" (29mm) of precipitation is accumulated. Throughout the year, there are 74.4 rainfall days, and 12.68" (322mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September, November 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. Throughout the year, there are 16.4 snowfall days, and 19.37" (492mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 22min.On the first day of the month, sunrise is at 6:02 am and sunset at 6:54 pm. On the last day of September, sunrise is at 6:23 am and sunset at 6:13 pm MST.
Sunshine
In September, the average sunshine is 9.8h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A typical high UV index of 5 in September suggests the following recommendations:
Make use of precautions - It is urged to ward off sun damage. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mayer, AZ
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is December (50°F).
- Average low temperature in September: 59°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is December (31.1°F).
Average pressure in September
Mayer, AZ
- Average pressure in September: 29.91"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Mayer, AZ
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are April and May (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Mayer, AZ
- Average humidity in September: 40%
The month with the highest relative humidity is December (58%).
The month with the lowest relative humidity is June (23%).
Average rainfall in September
Mayer, AZ
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is July (2.05").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in September
Mayer, AZ
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is July (14.1 days).
The month with the least rainy days is June (1.8 days).
Average snowfall in September
Mayer, AZ
- Average snowfall in September: 0.04"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and October (0").
Average snowfall days in September
Mayer, AZ
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (4.8 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average daylight in September /
Average sunshine in September
Mayer, AZ
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 48min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Mayer, AZ
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is June (27.4 days).
The month with the least sunshine days is August (13.2 days).
Average UV index in September
Mayer, AZ
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Mayer, AZ
- Average cloud cover in September: 10
The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in September
Mayer, 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).
