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
With September's onset, the average high-temperature recedes from August's moderately hot 82.8°F (28.2°C) to a pleasant 73.2°F (22.9°C). Throughout the month of September, the average temperature dips to a fresh 52.7°F (11.5°C) at night.Humidity
The average relative humidity in September is 43%.Rainfall
In September, the rain falls for 5 days. Throughout September, 0.35" (9mm) of precipitation is accumulated. In Salt Lake City, during the entire year, the rain falls for 71.6 days and collects up to 4.21" (107mm) of precipitation.Snowfall
In Salt Lake City, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:55 am and sunset at 7:59 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:10 pm MDT.
Sunshine
In Salt Lake City, the average sunshine in September is 10h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 during September translates into the following directions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. 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
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 in Salt Lake City?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Salt Lake City, UT
- Average high temperature in September: 73.2°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in September
Salt Lake City, UT
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Salt Lake City, UT
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest month (with the lowest average wind speed) is January (5mph).
Average humidity in September
Salt Lake City, UT
- Average humidity in September: 43%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (37%).
Average rainfall in September
Salt Lake City, UT
- Average rainfall in September: 0.35"
The wettest month (with the highest rainfall) is March (0.51").
The driest month (with the least rainfall) is August (0.2").
Average rainfall days in September
Salt Lake City, UT
- Average rainfall days in September: 5 days
The month with the highest number of rainy days is April (8.9 days).
The month with the least rainy days is June (4 days).
Average snowfall in September
Salt Lake City, UT
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.68").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Salt Lake City, UT
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (6.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Salt Lake City, UT
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 10h and 0min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in September
Salt Lake City, UT
- Average sunshine days in September: 22.4 days
The month with the most sunshine days is June (23.8 days).
The month with the least sunshine days is February (19 days).
Average UV index in September
Salt Lake City, UT
- Average UV index in September: 4
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
Salt Lake City, UT
- Average cloud cover in September: 12
The months with the most cloud cover are January and February (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in September
Salt Lake City, UT
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Salt Lake City, Utah, USA
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