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
During the transition into September, Leefe observes a decrease in the average high-temperature, falling from a warm 77.2°F (25.1°C) in August to an agreeable 68.2°F (20.1°C). Leefe's temperature exhibits a stark contrast from daytime to nighttime, averaging lows of 44.1°F (6.7°C) in September.Humidity
The average relative humidity in September is 48%.Rainfall
In Leefe, during September, the rain falls for 10.5 days and regularly aggregates up to 1.34" (34mm) of precipitation. Throughout the year, there are 114.5 rainfall days, and 21.38" (543mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows in Leefe. Throughout September, in the average 0.5 snowfall days, it receives 0.12" (3mm) of snow. In Leefe, Wyoming, during the entire year, snow falls for 107.8 days and aggregates up to 86.89" (2207mm) of snow.Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:50 am and sunset at 7:56 pm. On the last day of September, sunrise is at 7:20 am and sunset at 7:06 pm MDT.
Sunshine
In September, the average sunshine is 10h.UV index
In Leefe, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 3 during September translates into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Leefe in September?
What is the average humidity in September?
How many days does it rain in September?
When does it start snowing?
How many hours of daylight does Leefe have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September in Leefe?
Average temperature in September
Leefe, WY
- Average high temperature in September: 68.2°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is December (25.5°F).
- Average low temperature in September: 44.1°F
The month with the highest average low temperature is July (51.3°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in September
Leefe, WY
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Leefe, WY
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is June (6.2mph).
The calmest month (with the lowest average wind speed) is January (4.6mph).
Average humidity in September
Leefe, WY
- Average humidity in September: 48%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is August (42%).
Average rainfall in September
Leefe, WY
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is July (1.02").
Average rainfall days in September
Leefe, WY
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is January (4.9 days).
Average snowfall in September
Leefe, WY
- Average snowfall in September: 0.12"
The month with the highest snowfall is January (17.4").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Leefe, WY
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is February (20.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Leefe, WY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Leefe, WY
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is June (18.2 days).
The month with the least sunshine days is February (7.9 days).
Average UV index in September
Leefe, WY
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Leefe, WY
- Average cloud cover in September: 17
The month with the most cloud cover is February (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in September
Leefe, WY
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).
Leefe, Wyoming, USA
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