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
September signifies a minor drop in average high-temperature, transitioning from a warm 76.5°F (24.7°C) in August to an agreeable 70.3°F (21.3°C). In September, Brian Head experiences an average nighttime temperature of 48.9°F (9.4°C).Humidity
In Brian Head, the average relative humidity in September is 42%.Rainfall
In Brian Head, in September, it is raining for 8.1 days, with typically 0.94" (24mm) of accumulated precipitation. In Brian Head, during the entire year, the rain falls for 75.6 days and collects up to 14.29" (363mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Brian Head is 12h and 25min.On the first day of September, sunrise is at 7:02 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:15 pm MDT.
Sunshine
The average sunshine in September in Brian Head is 9.8h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The UV index of 4 in September translates into these instructions:
Be vigilant - A duty to shield skin and eyes from injury exists. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Brian Head, UT
- Average high temperature in September: 70.3°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is December (33.8°F).
- Average low temperature in September: 48.9°F
The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is December (17.4°F).
Average pressure in September
Brian Head, UT
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Brian Head, UT
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in September
Brian Head, UT
- Average humidity in September: 42%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is June (28%).
Average rainfall in September
Brian Head, UT
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is July (2.09").
The driest month (with the least rainfall) is June (0.28").
Average rainfall days in September
Brian Head, UT
- Average rainfall days in September: 8.1 days
The month with the highest number of rainy days is July (14.1 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in September
Brian Head, UT
- Average snowfall in September: 0"
The month with the highest snowfall is March (8.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Brian Head, UT
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (9.6 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Brian Head, UT
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 9h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 6h and 18min).
Average sunshine days in September
Brian Head, UT
- Average sunshine days in September: 18.4 days
The months with the most sunshine days are June and November (23.8 days).
The month with the least sunshine days is July (14.3 days).
Average UV index in September
Brian Head, UT
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Brian Head, UT
- Average cloud cover in September: 11
The month with the most cloud cover is December (Cloud cover 33).
The month with the least cloud cover is June (Cloud cover 9).
Average visibility in September
Brian Head, UT
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Brian Head, Utah, USA
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