September weather forecastClearmont, WY
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Clearmont, Wyoming, with an average temperature varying between 73.8°F (23.2°C) and 54.3°F (12.4°C).Temperature
The transition into September involves a decrease in the average high-temperature, falling from a warm 82.8°F (28.2°C) in August to a still moderately hot 73.8°F (23.2°C). An average low-temperature of 54.3°F (12.4°C) marks the month of September in Clearmont.Humidity
In Clearmont, the average relative humidity in September is 42%.Rainfall
In Clearmont, during September, the rain falls for 7.6 days and regularly aggregates up to 0.83" (21mm) of precipitation. In Clearmont, during the entire year, the rain falls for 99.8 days and collects up to 11.61" (295mm) of precipitation.Snowfall
Months with snowfall in Clearmont are January through June, September through December. September is the first month it typically snows in Clearmont. Throughout September, in the average 0.4 snowfall days, it receives 0.79" (20mm) of snow. In Clearmont, Wyoming, during the entire year, snow falls for 44.9 days and aggregates up to 18.23" (463mm) of snow.Daylight
In Clearmont, the average length of the day in September is 12h and 30min.On the first day of September, sunrise is at 6:28 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:47 pm MDT.
Sunshine
In September, the average sunshine in Clearmont is 10.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. To guard against the harmful effects of the Sun, minimize exposure during midday. To cut down UV radiation exposure by about half, sport a wide-brim hat. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Clearmont, WY
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is February (31.5°F).
- Average low temperature in September: 54.3°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is February (16.2°F).
Average pressure in September
Clearmont, WY
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Clearmont, WY
- Average wind speed in September: 8.1mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).
Average humidity in September
Clearmont, WY
- Average humidity in September: 42%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (38%).
Average rainfall in September
Clearmont, WY
- Average rainfall in September: 0.83"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in September
Clearmont, WY
- Average rainfall days in September: 7.6 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is December (2.5 days).
Average snowfall in September
Clearmont, WY
- Average snowfall in September: 0.79"
The month with the highest snowfall is April (3.46").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Clearmont, WY
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is November (7.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Clearmont, WY
- Average daylight in September: 12h and 30min
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 54min).
- Average sunshine in September: 10h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).
Average sunshine days in September
Clearmont, WY
- Average sunshine days in September: 18.3 days
The month with the most sunshine days is January (23.5 days).
The month with the least sunshine days is May (11 days).
Average UV index in September
Clearmont, WY
- Average UV index in September: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Clearmont, WY
- Average cloud cover in September: 17
The month with the most cloud cover is February (Cloud cover 37).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in September
Clearmont, 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).
