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
In September, the average high-temperature marginally drops from a moderately hot 78.3°F (25.7°C) in August to an agreeable 70.5°F (21.4°C). Manti's average nighttime temperature descends significantly from the day's peak in September, settling at a chilly 46.9°F (8.3°C).Humidity
In September, the average relative humidity is 43%.Rainfall
In Manti, in September, it is raining for 9.6 days, with typically 0.94" (24mm) of accumulated precipitation. In Manti, during the entire year, the rain falls for 115.2 days and collects up to 15.71" (399mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.24" (6mm) of snow. Throughout the year, in Manti, Utah, there are 66.3 snowfall days, and 48.94" (1243mm) of snow is accumulated.Daylight
The average length of the day in September in Manti is 12h and 26min.On the first day of September in Manti, sunrise is at 6:55 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:10 pm MDT.
Sunshine
In Manti, the average sunshine in September is 10.1h.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 the average person.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Take precautions - Protection against sunburn is recommended. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Experience reduced UV exposure by about half when donning a wide-brim hat. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the 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 many days does it rain in September in Manti?
When does it start snowing?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Manti, UT
- Average high temperature in September: 70.5°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The months with the lowest average high temperature are January and December (31.5°F).
- Average low temperature in September: 46.9°F
The month with the highest average low temperature is July (55°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in September
Manti, UT
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Manti, UT
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).
Average humidity in September
Manti, UT
- Average humidity in September: 43%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is June (35%).
Average rainfall in September
Manti, UT
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is March (1.73").
The driest month (with the least rainfall) is June (0.59").
Average rainfall days in September
Manti, UT
- Average rainfall days in September: 9.6 days
The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is June (6.3 days).
Average snowfall in September
Manti, UT
- Average snowfall in September: 0.24"
The month with the highest snowfall is January (9.92").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Manti, UT
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (14.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Manti, 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: 10h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in September
Manti, UT
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is June (20.8 days).
The month with the least sunshine days is February (11.2 days).
Average UV index in September
Manti, UT
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in September
Manti, UT
- Average cloud cover in September: 11
The months with the most cloud cover are January and February (Cloud cover 40).
The months with the least cloud cover are August and September (Cloud cover 11).
Average visibility in September
Manti, UT
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Manti, Utah, USA
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