September weather forecast
Tie Siding, WY

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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.

Frequently asked questions

What is the usual temperature for Tie Siding in September?

The high-temperature, in September, in Tie Siding, is 68.4°F (20.2°C), while the low-temperature averages to 46.2°F (7.9°C).

What is the average humidity in September?

In Tie Siding, the average relative humidity in September is 44%.

How much does it rain in September?

In September, the rain falls for 10.3 days. Throughout September, 0.98" (25mm) of precipitation is accumulated.

When does it start snowing?

September is the first month it typically snows. Throughout September, in the average 0.6 snowfall days, it receives 0.39" (10mm) of snow.

What is the average length of the day in September?

In September, the average day length is 12h and 27min.

When are sunrise and sunset in September?

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.

How many hours of sunshine does Tie Siding have in September?

The average sunshine duration in September is 11h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Tie Siding, WY

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in September - Tie Siding, WY
  • Average daylight in September: 12h and 3min

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 - 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 - 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 - 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 - 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).

Tie Siding, Wyoming, USA

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