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
September witnesses a gentle descent in average high-temperature, descending from August's warm 75.7°F (24.3°C) to an agreeable 68.4°F (20.2°C). With a significant temperature contrast, nighttime temperatures hover around an average low of 46.2°F (7.9°C) in September.Humidity
In Red Buttes, the average relative humidity in September is 44%.Rainfall
In Red Buttes, Wyoming, during September, the rain falls for 10.3 days and regularly aggregates up to 0.98" (25mm) of precipitation. In Red Buttes, during the entire year, the rain falls for 110.9 days and collects up to 14.53" (369mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.6 snowfall days, it receives 0.39" (10mm) of snow. In Red Buttes, during the entire year, snow falls for 88.8 days and aggregates up to 49.84" (1266mm) of snow.Daylight
The average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:34 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:45 pm MDT.
Sunshine
The average sunshine in September is 11h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: An average UV index of 4 in September transforms into this advice:
Ensure safety - Sun damage prevention is strongly urged. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When does it start to snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Red Buttes have in September?
What is the UV index reading in September?
Average temperature in September
Red Buttes, WY
- Average high temperature in September: 68.4°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is December (28.2°F).
- Average low temperature in September: 46.2°F
The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is December (14.2°F).
Average pressure in September
Red Buttes, WY
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Red Buttes, WY
- Average wind speed in September: 10.5mph
The windiest month (with the highest average wind speed) is January (14.1mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).
Average humidity in September
Red Buttes, WY
- Average humidity in September: 44%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (43%).
Average rainfall in September
Red Buttes, WY
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in September
Red Buttes, WY
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is November (4 days).
Average snowfall in September
Red Buttes, WY
- Average snowfall in September: 0.39"
The month with the highest snowfall is April (9.84").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Red Buttes, WY
- Average snowfall days in September: 0.6 days
The month with the highest number of snowfall days is April (13.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Red Buttes, WY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 11h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).
Average sunshine days in September
Red Buttes, WY
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is January (19.4 days).
The month with the least sunshine days is May (9 days).
Average UV index in September
Red Buttes, WY
- 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, April, October, November and December (UV index 2).
Average cloud cover in September
Red Buttes, WY
- Average cloud cover in September: 16
The month with the most cloud cover is February (Cloud cover 34).
The month with the least cloud cover is September (Cloud cover 16).
Average visibility in September
Red Buttes, WY
- 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).
Red Buttes, Wyoming, USA
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