September weather forecast
Uva, WY

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Weather in September

The first month of the autumn, September, is still a warm month in Uva, Wyoming, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 77.2°F (25.1°C).

Temperature

September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's moderately hot 85.6°F (29.8°C) to a still warm 77.2°F (25.1°C). Uva marks a considerable descent from the daytime apex, as the average temperature dips to a fresh 54.5°F (12.5°C) at night throughout September.

Humidity

In Uva, the average relative humidity in September is 40%.

Rainfall

In Uva, during September, the rain falls for 7.5 days and regularly aggregates up to 0.55" (14mm) of precipitation. In Uva, during the entire year, the rain falls for 90.9 days and collects up to 11.38" (289mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 46.2 snowfall days, and 26.3" (668mm) of snow is accumulated.

Daylight

The average length of the day in September is 12h and 28min.
On the first day of September in Uva, sunrise is at 6:25 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:42 pm MDT.

Sunshine

In Uva, the average sunshine in September is 10.8h.

UV index

In September, the average daily maximum UV index in Uva is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum daily UV index of 4 during September morphs into the following directions:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in Uva?

In Uva, in September, the average high-temperature is 77.2°F (25.1°C), and the average low-temperature is 54.5°F (12.5°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in July is calculated to be 87.8°F (31°C).

What is the average humidity in September in Uva?

The average relative humidity in September in Uva, Wyoming, is 40%.

How many days does it rain in September in Uva?

In Uva, in September, during 7.5 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

When does it start to snow in Uva?

September is the first month it typically snows in Uva. Throughout September, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow.

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

The average day length in September in Uva, Wyoming, is 12h and 28min.

When are sunrise and sunset in September in Uva?

In September, on the first day of the month, sunrise is at 6:25 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:42 pm MDT.

How many hours of sunshine does Uva have in September?

In September, the average sunshine duration in Uva, Wyoming, is 10.8h.

What is the UV index intensity in September in Uva?

In Uva, Wyoming, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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
Uva, WY

Average temperature in September - Uva, WY
  • Average high temperature in September: 77.2°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is December (35.1°F).

  • Average low temperature in September: 54.5°F

The month with the highest average low temperature is July (62.8°F).
The coldest months (with the lowest average low temperature) are February and December (21.6°F).

Average pressure in September
Uva, WY

Average pressure in September - Uva, WY
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in September
Uva, WY

Average wind speed in September - Uva, WY
  • Average wind speed in September: 9.6mph

The windiest month (with the highest average wind speed) is January (15mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).

Average humidity in September
Uva, WY

Average humidity in September - Uva, WY
  • Average humidity in September: 40%

The month with the highest relative humidity is February (66%).
The month with the lowest relative humidity is August (39%).

Average rainfall in September
Uva, WY

Average rainfall in September - Uva, WY
  • Average rainfall in September: 0.55"

The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is January (0.35").

Average rainfall days in September
Uva, WY

Average rainfall days in September - Uva, WY
  • Average rainfall days in September: 7.5 days

The month with the highest number of rainy days is May (12.7 days).
The month with the least rainy days is January (3.6 days).

Average snowfall in September
Uva, WY

Average snowfall in September - Uva, WY
  • Average snowfall in September: 0.12"

The month with the highest snowfall is April (4.45").
The months with the least snowfall are June, July and August (0").

Average snowfall days in September
Uva, WY

Average snowfall days in September - Uva, WY
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

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 5min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 6h and 36min).

Average sunshine days in September
Uva, WY

Average sunshine days in September - Uva, WY
  • Average sunshine days in September: 19.9 days

The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is April (14.5 days).

Average UV index in September
Uva, WY

Average UV index in September - Uva, WY
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Uva, WY

Average cloud cover in September - Uva, WY
  • Average cloud cover in September: 16

The month with the most cloud cover is April (Cloud cover 31).
The months with the least cloud cover are August and September (Cloud cover 16).

Average visibility in September
Uva, WY

Average visibility in September - Uva, 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).

Uva, Wyoming, USA

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