September weather forecast
Kaycee, WY

Weather in September

September, the first month of the autumn in Kaycee, is also an agreeable month, with an average temperature varying between 68.2°F (20.1°C) and 49.1°F (9.5°C).

Temperature

In September, the average high-temperature drops from a warm 77.2°F (25.1°C) in August to an agreeable 68.2°F (20.1°C). In Kaycee, in September, the average low-temperature is 49.1°F (9.5°C).

Humidity

In Kaycee, the average relative humidity in September is 47%.

Rainfall

In September, in Kaycee, the rain falls for 11.8 days. Throughout September, 1.34" (34mm) of precipitation is accumulated. Throughout the year, there are 145.3 rainfall days, and 18.78" (477mm) of precipitation is accumulated.

Snowfall

January through June, September through December are months with snowfall in Kaycee. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 0.94" (24mm) of snow. Throughout the year, there are 78 snowfall days, and 39.13" (994mm) of snow is accumulated.

Daylight

In September, the average length of the day in Kaycee is 12h and 29min.
On the first day of September in Kaycee, sunrise is at 6:30 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:49 pm MDT.

Sunshine

The average sunshine in September in Kaycee is 10.9h.

UV index

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in September in Kaycee?

The average relative humidity in September in Kaycee, Wyoming, is 47%.

How much does it rain in Kaycee in September?

In Kaycee, Wyoming, in September, during 11.8 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

When does it start to snow in Kaycee?

September is the first month it typically snows in Kaycee. Throughout September, in the average 0.5 snowfall days, it receives 0.94" (24mm) of snow.

What is the average length of the day in September in Kaycee?

In Kaycee, the average day length in September is 12h and 29min.

When are sunrise and sunset in September in Kaycee?

On the first day of September in Kaycee, sunrise is at 6:30 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:49 pm MDT.

How long on average sun shines in September in Kaycee?

In September, the average sunshine duration is 10.9h.

How high is the UV index in September in Kaycee?

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Kaycee, WY

Average temperature in September - Kaycee, WY
  • Average high temperature in September: 68.2°F

The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is February (28.9°F).

  • Average low temperature in September: 49.1°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is February (14°F).

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Average pressure in September
Kaycee, WY

Average pressure in September - Kaycee, WY
  • Average pressure in September: 29.93"Hg

The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in September
Kaycee, WY

Average wind speed in September - Kaycee, WY
  • Average wind speed in September: 6.4mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in September
Kaycee, WY

Average humidity in September - Kaycee, WY
  • Average humidity in September: 47%

The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (44%).

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Average rainfall in September
Kaycee, WY

Average rainfall in September - Kaycee, WY
  • Average rainfall in September: 1.34"

The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is December (0.47").

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Average rainfall days in September
Kaycee, WY

Average rainfall days in September - Kaycee, WY
  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is May (21.2 days).
The month with the least rainy days is December (5 days).

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Average snowfall in September
Kaycee, WY

Average snowfall in September - Kaycee, WY
  • Average snowfall in September: 0.94"

The month with the highest snowfall is April (7.05").
The months with the least snowfall are July and August (0").

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Average snowfall days in September
Kaycee, WY

Average snowfall days in September - Kaycee, WY
  • Average snowfall days in September: 0.5 days

The month with the highest number of snowfall days is February (13.7 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in September /
Average sunshine in September
Kaycee, WY

Average daylight in September / Average sunshine in September - Kaycee, WY
  • Average daylight in September: 12h and 29min

The month with the longest days is June (Average daylight: 15h and 23min).
The month with the shortest days is December (Average daylight: 8h and 59min).

  • Average sunshine in September: 10h and 54min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).

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Average sunshine days in September
Kaycee, WY

Average sunshine days in September - Kaycee, WY
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is December (19.4 days).
The month with the least sunshine days is May (5.5 days).

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Average UV index in September
Kaycee, WY

Average UV index in September - Kaycee, 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, October, November and December (UV index 2).

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Average cloud cover in September
Kaycee, WY

Average cloud cover in September - Kaycee, WY
  • Average cloud cover in September: 17

The month with the most cloud cover is April (Cloud cover 38).
The months with the least cloud cover are July and September (Cloud cover 17).

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Average visibility in September
Kaycee, WY

Average visibility in September - Kaycee, 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).

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