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
Stepping into September, Elk observes a temperature decline, with the average high falling from August's agreeable 72.3°F (22.4°C) to a comfortable 63°F (17.2°C). Elk records a significant temperature drop in September nights, lowering to an average of 37.8°F (3.2°C).Humidity
In September, the average relative humidity is 56%.Rainfall
In Elk, during September, the rain falls for 10.5 days and regularly aggregates up to 1.65" (42mm) of precipitation. In Elk, during the entire year, the rain falls for 111.6 days and collects up to 29.06" (738mm) of precipitation.Snowfall
January through July, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 1.7 snowfall days, it receives 3.27" (83mm) of snow. In Elk, during the entire year, snow falls for 153.4 days and aggregates up to 167.36" (4251mm) of snow.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:46 am and sunset at 7:57 pm. On the last day of September, sunrise is at 7:19 am and sunset at 7:04 pm MDT.
Sunshine
In Elk, the average sunshine in September is 10.1h.UV index
In Elk, the average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.Note: In September, a daily UV index of 2 turns into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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 in Elk?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Elk have in September?
What is the UV index intensity in September?
Average temperature in September
Elk, WY
- Average high temperature in September: 63°F
The warmest month (with the highest average high temperature) is July (73.9°F).
The month with the lowest average high temperature is December (21.7°F).
- Average low temperature in September: 37.8°F
The month with the highest average low temperature is July (44.2°F).
The coldest month (with the lowest average low temperature) is December (3.7°F).
Average pressure in September
Elk, WY
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Elk, WY
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest months (with the lowest average wind speed) are January and December (4.6mph).
Average humidity in September
Elk, WY
- Average humidity in September: 56%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is August (49%).
Average rainfall in September
Elk, WY
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is February (3.54").
The driest months (with the least rainfall) are July and August (1.02").
Average rainfall days in September
Elk, WY
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (3.5 days).
Average snowfall in September
Elk, WY
- Average snowfall in September: 3.27"
The month with the highest snowfall is February (29.65").
The month with the least snowfall is August (0").
Average snowfall days in September
Elk, WY
- Average snowfall days in September: 1.7 days
The month with the highest number of snowfall days is March (23.8 days).
The months with the least snowfall days are July and August (0.2 days).
Average daylight in September /
Average sunshine in September
Elk, WY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in September
Elk, WY
- Average sunshine days in September: 16 days
The month with the most sunshine days is September (16 days).
The month with the least sunshine days is February (5.2 days).
Average UV index in September
Elk, 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, October, November and December (UV index 1).
Average cloud cover in September
Elk, WY
- Average cloud cover in September: 19
The month with the most cloud cover is February (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in September
Elk, 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, February and December (3mi).
Elk, Wyoming, USA
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