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
As Yanceys enters September, the average high-temperature decreases from the a pleasant 69.6°F (20.9°C) of August to a refreshing 59.9°F (15.5°C). September nights are characterized by a significant departure from the daytime highs, dropping to an average temperature of 36.1°F (2.3°C).Humidity
In September, the average relative humidity is 57%.Rainfall
In September, the rain falls for 9 days. Throughout September, 1.61" (41mm) of precipitation is accumulated. Throughout the year, there are 102.8 rainfall days, and 23.98" (609mm) of precipitation is accumulated.Snowfall
Months with snowfall in Yanceys, Wyoming, are January through December. In Yanceys, in September, during 4.5 snowfall days, 5.55" (141mm) of snow is typically accumulated. In Yanceys, during the entire year, snow falls for 186.1 days and aggregates up to 135.16" (3433mm) of snow.Daylight
In September, the average length of the day is 12h and 31min.On the first day of the month, sunrise is at 6:44 am and sunset at 7:58 pm. On the last day of September, sunrise is at 7:19 am and sunset at 7:03 pm MDT.
Sunshine
The average sunshine in September is 10.1h.UV index
In September, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 2 in September transforms into the following instructions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The solar radiation around mid-day is intense; avoid the Sun and stay safe. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
What is the average September temperature in Yanceys?
What is the average humidity in September in Yanceys?
How many days does it rain in September in Yanceys?
How much does it snow in Yanceys in September?
What is the average length of the day in September in Yanceys?
What time are sunrise and sunset in September in Yanceys?
How long on average sun shines in September in Yanceys?
What is the UV index reading in September in Yanceys?
Average temperature in September
Yanceys, WY
- Average high temperature in September: 59.9°F
The warmest month (with the highest average high temperature) is July (70.9°F).
The month with the lowest average high temperature is December (18.9°F).
- Average low temperature in September: 36.1°F
The month with the highest average low temperature is July (43.2°F).
The coldest month (with the lowest average low temperature) is December (2.5°F).
Average pressure in September
Yanceys, WY
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Yanceys, WY
- Average wind speed in September: 6.5mph
The windiest months (with the highest average wind speed) are February and June (7.3mph).
The calmest month (with the lowest average wind speed) is May (6mph).
Average humidity in September
Yanceys, WY
- Average humidity in September: 57%
The months with the highest relative humidity are February and March (93%).
The months with the lowest relative humidity are July and August (51%).
Average rainfall in September
Yanceys, WY
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is July (1.02").
Average rainfall days in September
Yanceys, WY
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (2.8 days).
Average snowfall in September
Yanceys, WY
- Average snowfall in September: 5.55"
The month with the highest snowfall is April (19.69").
The month with the least snowfall is July (0.24").
Average snowfall days in September
Yanceys, WY
- Average snowfall days in September: 4.5 days
The month with the highest number of snowfall days is March (25.6 days).
The month with the least snowfall days is July (0.4 days).
Average daylight in September /
Average sunshine in September
Yanceys, WY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Yanceys, WY
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is September (15.6 days).
The month with the least sunshine days is May (3.1 days).
Average UV index in September
Yanceys, WY
- Average UV index in September: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).
Average cloud cover in September
Yanceys, WY
- Average cloud cover in September: 21
The month with the most cloud cover is February (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in September
Yanceys, WY
- Average visibility in September: 6mi
The months with the highest visibility are June, July, August and September (6mi).
The month with the lowest visibility is February (3mi).
Yanceys, Wyoming, USA
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