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 snowfall in September
- Average snowfall 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 change in temperatures is noted as August gives way to September, with average highs reducing from 85.1°F (29.5°C) to a still warm 79.7°F (26.5°C). Throughout September, Skull Valley experiences a low-temperature average of 59°F (15°C).Humidity
In Skull Valley, the average relative humidity in September is 42%.Rainfall
In September, the rain falls for 9.8 days. Throughout September, 1.69" (43mm) of precipitation is accumulated. Throughout the year, there are 76.9 rainfall days, and 16.46" (418mm) of precipitation is accumulated.Snowfall
In Skull Valley, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September, sunrise is at 6:04 am and sunset at 6:56 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 6:15 pm MST.
Sunshine
The average sunshine in September is 9.8h.UV index
In Skull Valley, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 5 suggests these recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September in Skull Valley?
How much does it rain in September?
When it does not snow?
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 intensity in September?
Average temperature in September
Skull Valley, AZ
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is December (49.1°F).
- Average low temperature in September: 59°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is December (30.7°F).
Average pressure in September
Skull Valley, AZ
- Average pressure in September: 29.9"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
Skull Valley, AZ
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in September
Skull Valley, AZ
- Average humidity in September: 42%
The month with the highest relative humidity is December (58%).
The month with the lowest relative humidity is June (23%).
Average rainfall in September
Skull Valley, AZ
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is July (4.33").
The driest month (with the least rainfall) is June (0.24").
Average rainfall days in September
Skull Valley, AZ
- Average rainfall days in September: 9.8 days
The months with the highest number of rainy days are July and August (15.5 days).
The month with the least rainy days is June (2.3 days).
Average snowfall in September
Skull Valley, AZ
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.13").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Skull Valley, AZ
- Average snowfall days in September: 0 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, September and October (0 days).
Average daylight in September /
Average sunshine in September
Skull Valley, 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: 9h and 54min).
- Average sunshine in September: 9h and 5min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
Skull Valley, AZ
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is May (26.8 days).
The month with the least sunshine days is August (12.8 days).
Average UV index in September
Skull Valley, 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
Skull Valley, AZ
- Average cloud cover in September: 10
The month with the most cloud cover is December (Cloud cover 24).
The month with the least cloud cover is June (Cloud cover 7).
Average visibility in September
Skull Valley, 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).
Skull Valley, Arizona, USA
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