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
With the onset of September, Fort Duchesne's average high-temperature slightly adjusts, moderately receding from August's warm 82°F (27.8°C) to an agreeable 73.2°F (22.9°C). September presents a pronounced divergence from daily peak temperatures in Fort Duchesne, with the average low-temperature of 50.9°F (10.5°C).Humidity
In September, the average relative humidity in Fort Duchesne is 37%.Rainfall
In Fort Duchesne, during September, the rain falls for 6.9 days and regularly aggregates up to 0.47" (12mm) of precipitation. In Fort Duchesne, during the entire year, the rain falls for 74.4 days and collects up to 5.94" (151mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Fort Duchesne, the average length of the day in September is 12h and 26min.On the first day of September in Fort Duchesne, sunrise is at 6:47 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:02 pm MDT.
Sunshine
In Fort Duchesne, the average sunshine in September is 10.7h.UV index
The average daily maximum UV index in September in Fort Duchesne is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Exercise prevention - Protecting skin and eyes from harm is required. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
What are September temperatures in Fort Duchesne?
What is the average humidity in September in Fort Duchesne?
How many days does it rain in September in Fort Duchesne?
When it does not snow in Fort Duchesne?
Does it snow in Fort Duchesne in September?
What is the average length of the day in September in Fort Duchesne?
When are sunrise and sunset in September in Fort Duchesne?
How long on average sun shines in September in Fort Duchesne?
What is the UV index intensity in September in Fort Duchesne?
Average temperature in September
Fort Duchesne, UT
- Average high temperature in September: 73.2°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).
Average pressure in September
Fort Duchesne, UT
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Fort Duchesne, UT
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is June (7mph).
The calmest month (with the lowest average wind speed) is January (3.8mph).
Average humidity in September
Fort Duchesne, UT
- Average humidity in September: 37%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is June (31%).
Average rainfall in September
Fort Duchesne, UT
- Average rainfall in September: 0.47"
The wettest months (with the highest rainfall) are March and May (0.67").
The driest month (with the least rainfall) is November (0.24").
Average rainfall days in September
Fort Duchesne, UT
- Average rainfall days in September: 6.9 days
The month with the highest number of rainy days is July (9.4 days).
The month with the least rainy days is November (2.3 days).
Average snowfall in September
Fort Duchesne, UT
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.69").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Fort Duchesne, UT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Fort Duchesne, UT
- Average daylight in September: 12h and 2min
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 4min
The months with the most sunshine are June and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 42min).
Average sunshine days in September
Fort Duchesne, UT
- Average sunshine days in September: 20.7 days
The month with the most sunshine days is November (25.8 days).
The month with the least sunshine days is July (16.8 days).
Average UV index in September
Fort Duchesne, 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, October, November and December (UV index 2).
Average cloud cover in September
Fort Duchesne, UT
- Average cloud cover in September: 11
The month with the most cloud cover is February (Cloud cover 27).
The months with the least cloud cover are August and September (Cloud cover 11).
Average visibility in September
Fort 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).
Fort Duchesne, Utah, USA
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