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 advent of September brings a slight shift in average high-temperature, moving from a moderately hot 80.1°F (26.7°C) in August to a pleasant 72.3°F (22.4°C). A pronounced dip becomes evident during the nights in September as Annabella logs a consistent average temperature of 49.3°F (9.6°C).Humidity
In Annabella, Utah, the average relative humidity in September is 40%.Rainfall
In Annabella, in September, it is raining for 8.5 days, with typically 0.75" (19mm) of accumulated precipitation. Throughout the year, there are 113.1 rainfall days, and 14.72" (374mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, in Annabella, there are 55.6 snowfall days, and 44.8" (1138mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September, sunrise is at 6:58 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:11 pm MDT.
Sunshine
The average sunshine in September is 10h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 4 during September translates into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. To cut down UV radiation exposure by about half, sport a wide-brim hat. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Frequently asked questions
What is the temperature in September in Annabella?
What is the average humidity in September in Annabella?
How much does it rain in Annabella in September?
When does it start to snow in Annabella?
How many hours of daylight does Annabella have in September?
When is the sunrise / sunset in September in Annabella?
How many hours of sunshine does Annabella have in September?
What is the UV index intensity in September in Annabella?
Average temperature in September
Annabella, UT
- Average high temperature in September: 72.3°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in September: 49.3°F
The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in September
Annabella, 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
Annabella, UT
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is June (7.4mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).
Average humidity in September
Annabella, UT
- Average humidity in September: 40%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is June (31%).
Average rainfall in September
Annabella, UT
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is March (1.85").
The driest month (with the least rainfall) is June (0.51").
Average rainfall days in September
Annabella, UT
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is November (5.7 days).
Average snowfall in September
Annabella, UT
- Average snowfall in September: 0.12"
The month with the highest snowfall is January (8.66").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Annabella, UT
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (12.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Annabella, UT
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 0min).
Average sunshine days in September
Annabella, UT
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is June (21.5 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in September
Annabella, UT
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Annabella, UT
- Average cloud cover in September: 10
The month with the most cloud cover is December (Cloud cover 36).
The months with the least cloud cover are August and September (Cloud cover 10).
Average visibility in September
Annabella, 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).
Annabella, Utah, USA
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