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
The arrival of September indicates a decrease in the average high-temperature, moving from a tropical 90°F (32.2°C) in August to a moderately hot 80.2°F (26.8°C). An average low-temperature of 59.7°F (15.4°C) is expected during September.Humidity
In September, the average relative humidity is 30%.Rainfall
In Delta, in September, it is raining for 6.3 days, with typically 0.47" (12mm) of accumulated precipitation. Throughout the year, there are 82.6 rainfall days, and 7.01" (178mm) of precipitation is accumulated.Snowfall
In Delta, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 6:59 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:13 pm MDT.
Sunshine
The average sunshine in September is 9.8h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 during September translates into the following directions:
Heed the precautions - Suggestions to avoid sunburn are made. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Delta in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow in Delta?
Does it snow in September?
How many hours of daylight does Delta have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September in Delta?
How high is the UV index in September in Delta?
Average temperature in September
Delta, UT
- Average high temperature in September: 80.2°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in September: 59.7°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in September
Delta, UT
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.25"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Delta, UT
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is June (8.8mph).
The calmest month (with the lowest average wind speed) is January (4.7mph).
Average humidity in September
Delta, UT
- Average humidity in September: 30%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is June (24%).
Average rainfall in September
Delta, UT
- Average rainfall in September: 0.47"
The wettest month (with the highest rainfall) is March (0.91").
The driest month (with the least rainfall) is June (0.24").
Average rainfall days in September
Delta, UT
- Average rainfall days in September: 6.3 days
The month with the highest number of rainy days is April (10 days).
The month with the least rainy days is June (3.9 days).
Average snowfall in September
Delta, UT
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Delta, UT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (8.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Delta, UT
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 5min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 18min).
Average sunshine days in September
Delta, UT
- Average sunshine days in September: 21.3 days
The month with the most sunshine days is June (24.1 days).
The month with the least sunshine days is February (16.3 days).
Average UV index in September
Delta, UT
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Delta, UT
- Average cloud cover in September: 10
The month with the most cloud cover is December (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in September
Delta, 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).
Delta, Utah, USA
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