September weather forecast
Arcola, WY

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Arcola, Wyoming, with an average temperature ranging between max 73.8°F (23.2°C) and min 52.3°F (11.3°C).

Temperature

As August transitions into September, Arcola sees a gentle drop in the average high-temperature, transitioning from 81.1°F (27.3°C) to a still warm 73.8°F (23.2°C). September nights in Arcola are marked by an average low-temperature of 52.3°F (11.3°C).

Humidity

In September, the average relative humidity is 44%.

Rainfall

In Arcola, Wyoming, in September, during 8.4 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. Throughout the year, there are 116 rainfall days, and 14.57" (370mm) of precipitation is accumulated.

Snowfall

In Arcola, Wyoming, snow does not fall in June through September.

Daylight

The average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:25 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:54 am and sunset at 6:40 pm MDT.

Sunshine

In Arcola, the average sunshine in September 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 moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: An average maximum UV index of 4 in September leads to these recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Frequently asked questions

What is the average September temperature in Arcola?

During September, Arcola experiences an average high-temperature of 73.8°F (23.2°C) and a low-temperature of 52.3°F (11.3°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in August is appraised at 80.6°F (27°C).

What is the average humidity in September in Arcola?

The average relative humidity in September in Arcola is 44%.

How many days does it rain in September in Arcola?

In September, in Arcola, Wyoming, the rain falls for 8.4 days. Throughout September, 0.87" (22mm) of precipitation is accumulated.

When it does not snow in Arcola?

In Arcola, snow does not fall in June through September.

Does it snow in Arcola in September?

In Arcola, in September, it doesn't snow. In October, it regularly snows.

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

The average day length in September is 12h and 27min.

What time are sunrise and sunset in September in Arcola?

In September, on the first day of the month, sunrise is at 6:25 am and sunset at 7:29 pm. On the last day of the month, in Arcola, Wyoming, sunrise is at 6:54 am and sunset at 6:40 pm MDT.

How many hours of sunshine does Arcola have in September?

The average sunshine duration in September in Arcola is 10.7h.

What is the UV index intensity in September in Arcola?

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

Average temperature in September
Arcola, WY

Average temperature in September - Arcola, WY
  • Average high temperature in September: 73.8°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is December (34.7°F).

  • Average low temperature in September: 52.3°F

The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).

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Average pressure in September
Arcola, WY

Average pressure in September - Arcola, WY
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in September
Arcola, WY

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

The windiest month (with the highest average wind speed) is January (14.2mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).

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Average humidity in September
Arcola, WY

Average humidity in September - Arcola, WY
  • Average humidity in September: 44%

The month with the highest relative humidity is February (64%).
The month with the lowest relative humidity is August (43%).

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Average rainfall in September
Arcola, WY

Average rainfall in September - Arcola, WY
  • Average rainfall in September: 0.87"

The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (0.43").

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Average rainfall days in September
Arcola, WY

Average rainfall days in September - Arcola, WY
  • Average rainfall days in September: 8.4 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (4.7 days).

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Average snowfall in September
Arcola, WY

Average snowfall in September - Arcola, WY
  • Average snowfall in September: 0"

The month with the highest snowfall is March (6.06").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Arcola, WY

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

The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in September / Average sunshine in September - Arcola, 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: 10h and 4min

The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).

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Average sunshine days in September
Arcola, WY

Average sunshine days in September - Arcola, WY
  • Average sunshine days in September: 19 days

The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is April (9.3 days).

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Average UV index in September
Arcola, WY

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

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

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Average cloud cover in September
Arcola, WY

Average cloud cover in September - Arcola, WY
  • Average cloud cover in September: 18

The months with the most cloud cover are April and May (Cloud cover 32).
The month with the least cloud cover is September (Cloud cover 18).

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Average visibility in September
Arcola, WY

Average visibility in September - Arcola, 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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Arcola, Wyoming, USA

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