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 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
A subtle shift in Fort McDowell's weather is observed as August turns into September, with the average high temperature reducing from a very hot 98.2°F (36.8°C) to a hot 92.5°F (33.6°C). During the month of September, Fort McDowell's nighttime temperature lowers to an average of 74.7°F (23.7°C).Humidity
In September, the average relative humidity is 32%.Rainfall
In Fort McDowell, in September, during 8.2 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, there are 67.9 rainfall days, and 10" (254mm) of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:01 am and sunset at 6:51 pm. On the last day of September, in Fort McDowell, sunrise is at 6:20 am and sunset at 6:11 pm MST.
Sunshine
In September, the average sunshine is 9.6h.UV index
In Fort McDowell, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 7 in September translates into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Fort McDowell, AZ
- Average high temperature in September: 92.5°F
The warmest month (with the highest average high temperature) is July (99.1°F).
The month with the lowest average high temperature is December (60.3°F).
- Average low temperature in September: 74.7°F
The month with the highest average low temperature is August (80.4°F).
The coldest month (with the lowest average low temperature) is December (44.2°F).
Average pressure in September
Fort McDowell, AZ
- Average pressure in September: 29.89"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
Fort McDowell, AZ
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are April and May (6.5mph).
The calmest month (with the lowest average wind speed) is December (4.8mph).
Average humidity in September
Fort McDowell, AZ
- Average humidity in September: 32%
The month with the highest relative humidity is December (46%).
The month with the lowest relative humidity is June (17%).
Average rainfall in September
Fort McDowell, AZ
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is July (1.54").
The driest months (with the least rainfall) are May and June (0.12").
Average rainfall days in September
Fort McDowell, AZ
- Average rainfall days in September: 8.2 days
The month with the highest number of rainy days is July (12.2 days).
The month with the least rainy days is June (1.6 days).
Average daylight in September /
Average sunshine in September
Fort McDowell, AZ
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
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 June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Fort McDowell, AZ
- Average sunshine days in September: 18.8 days
The month with the most sunshine days is May (28 days).
The month with the least sunshine days is July (14 days).
Average UV index in September
Fort McDowell, AZ
- Average UV index in September: 7
The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Fort McDowell, AZ
- Average cloud cover in September: 11
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in September
Fort McDowell, 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).
Fort McDowell, Arizona, USA
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