September weather forecastShoshoni, WY
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Shoshoni, Wyoming, with an average temperature ranging between min 52.3°F (11.3°C) and max 73°F (22.8°C).Temperature
The transition into September indicates a reduction in the average high-temperature, down to a pleasant 73°F (22.8°C) from August's warm 82.6°F (28.1°C). Shoshoni's average low-temperature in the month of September is recorded at a fresh 52.3°F (11.3°C).Humidity
The average relative humidity in September is 37%.Rainfall
In September, the rain falls for 10.3 days. Throughout September, 0.94" (24mm) of precipitation is accumulated. Throughout the year, there are 115.2 rainfall days, and 11.26" (286mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 0.91" (23mm) of snow. In Shoshoni, during the entire year, snow falls for 52.8 days and aggregates up to 26.02" (661mm) of snow.Daylight
In Shoshoni, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:09 am and sunset at 6:54 pm MDT.
Sunshine
In September, the average sunshine is 10.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In September, a regular UV index of 4 translates into these guidelines:
Guard yourself - Avoiding sunburn is suggested. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Shoshoni, WY
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (28.4°F).
- Average low temperature in September: 52.3°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in September
Shoshoni, WY
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Shoshoni, WY
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is January (5.4mph).
Average humidity in September
Shoshoni, WY
- Average humidity in September: 37%
The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (33%).
Average rainfall in September
Shoshoni, WY
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is May (2.17").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in September
Shoshoni, WY
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (4.4 days).
Average snowfall in September
Shoshoni, WY
- Average snowfall in September: 0.91"
The month with the highest snowfall is April (5").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Shoshoni, WY
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is February (9.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Shoshoni, WY
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 10h and 42min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).
Average sunshine days in September
Shoshoni, WY
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is January (21.5 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in September
Shoshoni, WY
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 2).
Average cloud cover in September
Shoshoni, WY
- Average cloud cover in September: 14
The month with the most cloud cover is February (Cloud cover 31).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Shoshoni, 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).
