September weather forecastBoneyard, AZ
September
Weather in September
September, the first month of the autumn in Boneyard, is still a pleasant month, with an average temperature fluctuating between 70.2°F (21.2°C) and 49.8°F (9.9°C).Temperature
The average high-temperature is a pleasant 70.2°F (21.2°C) in September, hardly different from the 74.8°F (23.8°C) recorded in August. Boneyard, in September, observes a steady average low-temperature of 49.8°F (9.9°C).Humidity
In Boneyard, the average relative humidity in September is 54%.Rainfall
In Boneyard, in September, it is raining for 15.3 days, with typically 2.72" (69mm) of accumulated precipitation. Throughout the year, there are 105.2 rainfall days, and 20.71" (526mm) of precipitation is accumulated.Snowfall
In Boneyard, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 5:51 am and sunset at 6:42 pm. On the last day of September, sunrise is at 6:11 am and sunset at 6:02 pm MST.
Sunshine
In Boneyard, the average sunshine in September is 10.5h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Boneyard, AZ
- Average high temperature in September: 70.2°F
The warmest month (with the highest average high temperature) is June (78.1°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in September: 49.8°F
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in September
Boneyard, AZ
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Boneyard, AZ
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Boneyard, AZ
- Average humidity in September: 54%
The month with the highest relative humidity is January (67%).
The month with the lowest relative humidity is June (29%).
Average rainfall in September
Boneyard, AZ
- Average rainfall in September: 2.72"
The wettest month (with the highest rainfall) is July (5.43").
The driest month (with the least rainfall) is April (0.59").
Average rainfall days in September
Boneyard, AZ
- Average rainfall days in September: 15.3 days
The month with the highest number of rainy days is July (25.3 days).
The month with the least rainy days is November (2.5 days).
Average snowfall in September
Boneyard, AZ
- Average snowfall in September: 0"
The month with the highest snowfall is January (7.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Boneyard, AZ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Boneyard, 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 30min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in September
Boneyard, AZ
- Average sunshine days in September: 11.4 days
The month with the most sunshine days is November (24.4 days).
The month with the least sunshine days is July (4 days).
Average UV index in September
Boneyard, AZ
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Boneyard, AZ
- Average cloud cover in September: 17
The month with the most cloud cover is July (Cloud cover 27).
The month with the least cloud cover is June (Cloud cover 12).
Average visibility in September
Boneyard, 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).





