September weather forecastDuchesne, UT
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Duchesne, Utah, with an average temperature varying between 46.6°F (8.1°C) and 68.9°F (20.5°C).Temperature
The onset of September entails a subtle temperature shift, as the average high-temperature eases from a warm 76.6°F (24.8°C) in August to an agreeable 68.9°F (20.5°C). Despite a noticeable differential from daytime highs, Duchesne notes an average nighttime low-temperature of 46.6°F (8.1°C) in September.Humidity
In Duchesne, the average relative humidity in September is 43%.Rainfall
In Duchesne, in September, during 10.3 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. Throughout the year, in Duchesne, there are 124.1 rainfall days, and 12.87" (327mm) of precipitation is accumulated.Snowfall
In Duchesne, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:50 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:04 pm MDT.
Sunshine
The average sunshine in September is 10.5h.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 unprotected exposure to Sun's UV rays for ordinary individuals.Note: The average daily UV index of 4 in September transforms into the following instructions:
Be vigilant - Preventing sunburn is recommended. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Duchesne, UT
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The months with the lowest average high temperature are January and December (28.9°F).
- Average low temperature in September: 46.6°F
The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in September
Duchesne, UT
- Average pressure in September: 29.96"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
Duchesne, UT
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in September
Duchesne, 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 (36%).
Average rainfall in September
Duchesne, UT
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is May (1.65").
The driest month (with the least rainfall) is November (0.71").
Average rainfall days in September
Duchesne, UT
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is November (6.2 days).
Average snowfall in September
Duchesne, UT
- Average snowfall in September: 0"
The month with the highest snowfall is February (7.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Duchesne, UT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Duchesne, 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 30min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 24min).
Average sunshine days in September
Duchesne, UT
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is April (12.4 days).
Average UV index in September
Duchesne, 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, October, November and December (UV index 2).
Average cloud cover in September
Duchesne, UT
- Average cloud cover in September: 13
The month with the most cloud cover is February (Cloud cover 33).
The months with the least cloud cover are June and September (Cloud cover 13).
Average visibility in September
Duchesne, UT
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
