September weather forecastOrem, UT
September
Weather in September
September sees the onset of fall in Orem, with a noticeable change in weather patterns. A transition from summer heat to mild temperatures becomes prominent. Environmental conditions shift from extreme summer heat to a refreshing coolness. With an average high temperature of 72.7°F (22.6°C), this month signals a departure from the summer sun. The end of incessant summer sunshine paves the way for an array of colors, as trees start shedding their leaves, splashing the city in hues of orange and yellow.Temperature
September is characterized by a slight reduction in average high-temperature, easing from a moderately hot 81.1°F (27.3°C) in August to an agreeable 72.7°F (22.6°C). In September, the temperature registers a significant dip to an average of 47.7°F (8.7°C) at night.Humidity
In September, the average relative humidity in Orem, Utah, is 44%.Rainfall
In Orem, during September, the rain falls for 8.1 days and regularly aggregates up to 0.83" (21mm) of precipitation. In Orem, during the entire year, the rain falls for 109.2 days and collects up to 14.33" (364mm) of precipitation.Snowfall
In Orem, snow does not fall in June through September.Daylight
In September, the average length of the day in Orem is 12h and 26min.On the first day of the month, sunrise is at 6:55 am and sunset at 7:57 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:10 pm MDT.
Sunshine
In Orem, the average sunshine in September is 10.1h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 4 suggests this advice:
Be vigilant - Suggestions to stave off sun damage are provided. To protect against the Sun's most potent rays, avoid direct exposure around midday. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Orem, UT
- Average high temperature in September: 72.7°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in September: 47.7°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in September
Orem, UT
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Orem, UT
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest month (with the lowest average wind speed) is January (4.5mph).
Average humidity in September
Orem, UT
- Average humidity in September: 44%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is July (40%).
Average rainfall in September
Orem, UT
- Average rainfall in September: 0.83"
The wettest month (with the highest rainfall) is January (1.73").
The driest month (with the least rainfall) is June (0.63").
Average rainfall days in September
Orem, UT
- Average rainfall days in September: 8.1 days
The months with the highest number of rainy days are April and May (12.6 days).
The month with the least rainy days is June (5.5 days).
Average snowfall in September
Orem, UT
- Average snowfall in September: 0"
The month with the highest snowfall is January (11.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Orem, UT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Orem, UT
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 10h and 6min
The months with the most sunshine are June and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in September
Orem, UT
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is June (22.3 days).
The month with the least sunshine days is April (13.3 days).
Average UV index in September
Orem, UT
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Orem, UT
- Average cloud cover in September: 12
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in September
Orem, 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 months with the lowest visibility are January and February (4mi).
