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
A mild drop in Elk Mountain's average high-temperature is observed in September, transitioning from a moderately hot 76.3°F (24.6°C) in August to a pleasant 68.2°F (20.1°C). September nights in Elk Mountain showcase a dramatic shift from daytime highs to an average temperature of 45.3°F (7.4°C).Humidity
In Elk Mountain, the average relative humidity in September is 44%.Rainfall
In Elk Mountain, in September, it is raining for 9.1 days, with typically 0.79" (20mm) of accumulated precipitation. Throughout the year, in Elk Mountain, Wyoming, there are 105.6 rainfall days, and 13.94" (354mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall in Elk Mountain. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 0.24" (6mm) of snow. In Elk Mountain, during the entire year, snow falls for 100.7 days and aggregates up to 54.45" (1383mm) of snow.Daylight
The average length of the day in September in Elk Mountain, Wyoming, is 12h and 28min.On the first day of September in Elk Mountain, Wyoming, sunrise is at 6:32 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:48 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 of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the usual temperature for Elk Mountain in September?
What is the average humidity in September in Elk Mountain?
How many days does it rain in September in Elk Mountain?
When does it start snowing in Elk Mountain?
What is the average length of the day in September in Elk Mountain?
When is the sunrise / sunset in September in Elk Mountain?
How long on average sun shines in September in Elk Mountain?
How high is the UV index in September in Elk Mountain?
Average temperature in September
Elk Mountain, WY
- Average high temperature in September: 68.2°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in September: 45.3°F
The month with the highest average low temperature is July (52.3°F).
The coldest months (with the lowest average low temperature) are January and December (12.9°F).
Average pressure in September
Elk Mountain, WY
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Elk Mountain, WY
- Average wind speed in September: 10.1mph
The windiest month (with the highest average wind speed) is November (11.8mph).
The calmest month (with the lowest average wind speed) is July (9.1mph).
Average humidity in September
Elk Mountain, WY
- Average humidity in September: 44%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (41%).
Average rainfall in September
Elk Mountain, WY
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is April (1.97").
The driest month (with the least rainfall) is August (0.75").
Average rainfall days in September
Elk Mountain, WY
- Average rainfall days in September: 9.1 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is November (4.9 days).
Average snowfall in September
Elk Mountain, WY
- Average snowfall in September: 0.24"
The month with the highest snowfall is April (9.76").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Elk Mountain, WY
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is February (17.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Elk Mountain, 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: 11h and 0min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days in September
Elk Mountain, WY
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (9.4 days).
Average UV index in September
Elk Mountain, WY
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Elk Mountain, WY
- Average cloud cover in September: 14
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are August and September (Cloud cover 14).
Average visibility in September
Elk Mountain, WY
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Elk Mountain, Wyoming, USA
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