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 onset of September is marked by a minor decrease in temperature, transitioning from a moderately hot 81.1°F (27.3°C) in August to an agreeable 73°F (22.8°C). Gunnison records a consistent low-temperature average of 49.1°F (9.5°C) during September, indicating a significant difference from the daytime heat.Humidity
The average relative humidity in September is 40%.Rainfall
In September, the rain falls for 7.6 days. Throughout September, 0.55" (14mm) of precipitation is accumulated. Throughout the year, there are 108.6 rainfall days, and 12.72" (323mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Gunnison.Daylight
In Gunnison, the average length of the day in September is 12h and 26min.On the first day of September in Gunnison, sunrise is at 6:56 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:10 pm MDT.
Sunshine
In Gunnison, the average sunshine in September is 10.1h.UV index
The average daily maximum UV index in September in Gunnison, Utah, is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The average daily UV index of 4 in September transforms into the following instructions:
Take precautions - Protection against sunburn is recommended. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Gunnison in September?
What is the average humidity in September in Gunnison?
How many days does it rain in September in Gunnison?
When it does not snow in Gunnison?
Does it snow in Gunnison in September?
How many hours of daylight does Gunnison have in September?
What time are sunrise and sunset in September in Gunnison?
How many hours of sunshine does Gunnison have in September?
What is the UV index reading in September in Gunnison?
Average temperature in September
Gunnison, UT
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in September: 49.1°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 (16.7°F).
Average pressure in September
Gunnison, 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
Gunnison, UT
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are April and June (6.6mph).
The calmest month (with the lowest average wind speed) is January (4.4mph).
Average humidity in September
Gunnison, UT
- Average humidity in September: 40%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is June (32%).
Average rainfall in September
Gunnison, UT
- Average rainfall in September: 0.55"
The wettest month (with the highest rainfall) is March (1.69").
The driest month (with the least rainfall) is June (0.35").
Average rainfall days in September
Gunnison, UT
- Average rainfall days in September: 7.6 days
The month with the highest number of rainy days is April (12.9 days).
The month with the least rainy days is June (4.5 days).
Average snowfall in September
Gunnison, UT
- Average snowfall in September: 0"
The month with the highest snowfall is December (8.62").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Gunnison, UT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Gunnison, 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: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in September
Gunnison, UT
- Average sunshine days in September: 19.6 days
The month with the most sunshine days is June (23 days).
The month with the least sunshine days is February (12.5 days).
Average UV index in September
Gunnison, 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, November and December (UV index 2).
Average cloud cover in September
Gunnison, UT
- Average cloud cover in September: 10
The months with the most cloud cover are January and December (Cloud cover 37).
The months with the least cloud cover are August and September (Cloud cover 10).
Average visibility in September
Gunnison, 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).
Gunnison, Utah, USA
Weather forecast for your location
2. Allow the app to use your location