September weather forecastFranconia, AZ
September
Weather in September
The first month of the autumn, September, is also a sweltering month in Franconia, Arizona, with an average temperature ranging between max 95.9°F (35.5°C) and min 79.2°F (26.2°C).Temperature
As September begins, there is a minor decrease in the average high-temperature, softly falling from 101.8°F (38.8°C) in August to a still torrid 95.9°F (35.5°C). Franconia's average low-temperature during September nights is observed to be a warm 79.2°F (26.2°C).Humidity
The average relative humidity in September is 25%.Rainfall
In Franconia, in September, during 5.5 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. Throughout the year, there are 52.1 rainfall days, and 6.26" (159mm) of precipitation is accumulated.Snowfall
In Franconia, snow does not fall in January through November.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:10 am and sunset at 7:03 pm. On the last day of September, sunrise is at 6:31 am and sunset at 6:21 pm MST.
Sunshine
The average sunshine in September is 10h.UV index
The average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, a daily UV index of 7 turns into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Franconia, AZ
- Average high temperature in September: 95.9°F
The warmest month (with the highest average high temperature) is July (102.7°F).
The month with the lowest average high temperature is December (60.1°F).
- Average low temperature in September: 79.2°F
The month with the highest average low temperature is August (85.5°F).
The coldest month (with the lowest average low temperature) is December (46.6°F).
Average pressure in September
Franconia, AZ
- Average pressure in September: 29.81"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.75"Hg).
Average wind speed in September
Franconia, AZ
- Average wind speed in September: 6.7mph
The windiest months (with the highest average wind speed) are April and May (8.6mph).
The calmest month (with the lowest average wind speed) is November (6.5mph).
Average humidity in September
Franconia, AZ
- Average humidity in September: 25%
The month with the highest relative humidity is January (40%).
The month with the lowest relative humidity is June (15%).
Average rainfall in September
Franconia, AZ
- Average rainfall in September: 0.63"
The wettest month (with the highest rainfall) is August (1.02").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in September
Franconia, AZ
- Average rainfall days in September: 5.5 days
The month with the highest number of rainy days is July (9.3 days).
The month with the least rainy days is June (0.8 days).
Average snowfall days in September
Franconia, AZ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Franconia, 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: 10h and 0min
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 48min).
Average sunshine days in September
Franconia, AZ
- Average sunshine days in September: 22.5 days
The month with the most sunshine days is June (28.7 days).
The month with the least sunshine days is August (18.7 days).
Average UV index in September
Franconia, 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
Franconia, AZ
- Average cloud cover in September: 8
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in September
Franconia, 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).





