September weather forecastCarlson, WY
September
Weather in September
September, the first month of the autumn in Carlson, is still a pleasant month, with an average temperature varying between 44.1°F (6.7°C) and 68.2°F (20.1°C).Temperature
September indicates a shift in the average high-temperature, from August's warm 77.2°F (25.1°C) to a pleasant 68.2°F (20.1°C). Carlson experiences a significant contrast between daily highs and an average nighttime temperature of 44.1°F (6.7°C) during September.Humidity
The average relative humidity in September in Carlson is 48%.Rainfall
In Carlson, in September, it is raining for 10.5 days, with typically 1.34" (34mm) of accumulated precipitation. In Carlson, during the entire year, the rain falls for 114.5 days and collects up to 21.38" (543mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 107.8 snowfall days, and 86.89" (2207mm) of snow is accumulated.Daylight
In September, the average length of the day 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 Carlson, the average sunshine in September is 10h.UV index
In September, the average daily maximum UV index in Carlson is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the average maximum UV index of 3 translates into the following recommendations:
Act with care - The need to guard against sun damage is communicated. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Carlson, 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
Carlson, 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
Carlson, 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
Carlson, 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
Carlson, 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
Carlson, 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
Carlson, 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
Carlson, 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
Carlson, WY
- Average daylight in September: 12h and 30min
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
Carlson, 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
Carlson, 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
Carlson, 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
Carlson, 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).
