September weather forecastTie Siding, WY
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Tie Siding, Wyoming, with an average temperature ranging between max 68.4°F (20.2°C) and min 46.2°F (7.9°C).Temperature
Tie Siding's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's warm 75.7°F (24.3°C) to a pleasant 68.4°F (20.2°C). Tie Siding registers a marked temperature plunge to a frosty 46.2°F (7.9°C) during the cool September nights.Humidity
The average relative humidity in September is 44%.Rainfall
In Tie Siding, in September, it is raining for 10.3 days, with typically 0.98" (25mm) of accumulated precipitation. In Tie Siding, Wyoming, during the entire year, the rain falls for 110.9 days and collects up to 14.53" (369mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.6 snowfall days, it receives 0.39" (10mm) of snow. Throughout the year, there are 88.8 snowfall days, and 49.84" (1266mm) of snow is accumulated.Daylight
In Tie Siding, Wyoming, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:29 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:45 pm MDT.
Sunshine
The average sunshine in September is 11h.UV index
In Tie Siding, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 4 during September leads to these instructions:
Exercise prevention - Precautions against solar damage are endorsed. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tie Siding, WY
- Average high temperature in September: 68.4°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is December (28.2°F).
- Average low temperature in September: 46.2°F
The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is December (14.2°F).
Average pressure in September
Tie Siding, WY
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Tie Siding, WY
- Average wind speed in September: 10.5mph
The windiest month (with the highest average wind speed) is January (14.1mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).
Average humidity in September
Tie Siding, WY
- Average humidity in September: 44%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (43%).
Average rainfall in September
Tie Siding, WY
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in September
Tie Siding, WY
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is November (4 days).
Average snowfall in September
Tie Siding, WY
- Average snowfall in September: 0.39"
The month with the highest snowfall is April (9.84").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Tie Siding, WY
- Average snowfall days in September: 0.6 days
The month with the highest number of snowfall days is April (13.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Tie Siding, WY
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 11h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).
Average sunshine days in September
Tie Siding, WY
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is January (19.4 days).
The month with the least sunshine days is May (9 days).
Average UV index in September
Tie Siding, WY
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in September
Tie Siding, WY
- Average cloud cover in September: 16
The month with the most cloud cover is February (Cloud cover 34).
The month with the least cloud cover is September (Cloud cover 16).
Average visibility in September
Tie Siding, 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).
