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 indicates a minor shift in the average high-temperature, from August's 84.7°F (29.3°C) to a still warm 77.4°F (25.2°C). During September, the temperature tends to dip to an average of 58.1°F (14.5°C) at night.Humidity
In Bluff, the average relative humidity in September is 35%.Rainfall
In Bluff, in September, it is raining for 8.2 days, with typically 0.63" (16mm) of accumulated precipitation. In Bluff, during the entire year, the rain falls for 73.8 days and collects up to 7.72" (196mm) of precipitation.Snowfall
In Bluff, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:49 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:13 am and sunset at 7:02 pm MDT.
Sunshine
In Bluff, the average sunshine in September is 10.8h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 5 during September translates into these guidelines:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How many days 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 many hours of sunshine does Bluff have in September?
What is the UV index reading in September?
Average temperature in September
Bluff, UT
- Average high temperature in September: 77.4°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (36.5°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in September
Bluff, UT
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Bluff, UT
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is April (9.2mph).
The calmest month (with the lowest average wind speed) is January (5.1mph).
Average humidity in September
Bluff, UT
- Average humidity in September: 35%
The month with the highest relative humidity is January (71%).
The month with the lowest relative humidity is June (22%).
Average rainfall in September
Bluff, UT
- Average rainfall in September: 0.63"
The wettest month (with the highest rainfall) is August (1.1").
The driest month (with the least rainfall) is June (0.31").
Average rainfall days in September
Bluff, UT
- Average rainfall days in September: 8.2 days
The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in September
Bluff, UT
- Average snowfall in September: 0"
The month with the highest snowfall is December (5.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Bluff, UT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (6.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bluff, 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: 10h and 5min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 36min).
Average sunshine days in September
Bluff, UT
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is November (25.5 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in September
Bluff, UT
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Bluff, UT
- Average cloud cover in September: 11
The months with the most cloud cover are January and December (Cloud cover 26).
The month with the least cloud cover is June (Cloud cover 10).
Average visibility in September
Bluff, UT
- 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).
Bluff, Utah, USA
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