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
In September, the average high-temperature marginally drops from 85.5°F (29.7°C) in August to a still moderately hot 78.4°F (25.8°C). Sheridan's September nights represent a significant downturn from the day's heat, with an average temperature of 52.9°F (11.6°C).Humidity
The average relative humidity in September is 42%.Rainfall
In Sheridan, in September, it is raining for 7.2 days, with typically 0.51" (13mm) of accumulated precipitation. In Sheridan, during the entire year, the rain falls for 80.2 days and collects up to 9.72" (247mm) of precipitation.Snowfall
In Sheridan, snow does not fall in June through September.Daylight
In Sheridan, the average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:29 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:43 pm MDT.
Sunshine
In Sheridan, the average sunshine in September is 11.1h.UV index
In Sheridan, Colorado, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in Sheridan in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September in Sheridan?
What is the UV index intensity in September?
Average temperature in September
Sheridan, CO
- Average high temperature in September: 78.4°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is December (41.7°F).
- Average low temperature in September: 52.9°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is December (21.4°F).
Average pressure in September
Sheridan, CO
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are April and June (29.91"Hg).
Average wind speed in September
Sheridan, CO
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is December (6mph).
Average humidity in September
Sheridan, CO
- Average humidity in September: 42%
The month with the highest relative humidity is February (64%).
The months with the lowest relative humidity are June and August (41%).
Average rainfall in September
Sheridan, CO
- Average rainfall in September: 0.51"
The wettest month (with the highest rainfall) is May (1.89").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in September
Sheridan, CO
- Average rainfall days in September: 7.2 days
The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is January (1.5 days).
Average snowfall in September
Sheridan, CO
- Average snowfall in September: 0"
The month with the highest snowfall is April (4.96").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Sheridan, CO
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Sheridan, CO
- 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 24min).
- Average sunshine in September: 11h and 1min
The months with the most sunshine are June and July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 48min).
Average sunshine days in September
Sheridan, CO
- Average sunshine days in September: 19.6 days
The month with the most sunshine days is January (25.6 days).
The month with the least sunshine days is May (14 days).
Average UV index in September
Sheridan, CO
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Sheridan, CO
- Average cloud cover in September: 14
The month with the most cloud cover is April (Cloud cover 25).
The month with the least cloud cover is September (Cloud cover 14).
Average visibility in September
Sheridan, CO
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Sheridan, Colorado, USA
Weather forecast for your location
2. Allow the app to use your location