September weather forecast
Copper Center, AK

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Weather in September

The first month of the autumn, September, is still a cool month in Copper Center, Alaska, with an average temperature ranging between min 36.5°F (2.5°C) and max 51.6°F (10.9°C).

Temperature

Copper Center's transition into September involves a shift in temperature, receding from a refreshing 61.9°F (16.6°C) in August to a cool 51.6°F (10.9°C). An average minimum temperature of 36.5°F (2.5°C) marks the month of September.

Humidity

The average relative humidity in September in Copper Center is 72%.

Rainfall

In September, the rain falls for 10.1 days. Throughout September, 0.79" (20mm) of precipitation is accumulated. Throughout the year, in Copper Center, Alaska, there are 81.1 rainfall days, and 5.71" (145mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Copper Center are January through May, September through December. September is the first month it typically snows in Copper Center. Throughout September, in the average 0.5 snowfall days, it receives 0.2" (5mm) of snow. In Copper Center, during the entire year, snow falls for 54.8 days and aggregates up to 17.13" (435mm) of snow.

Daylight

In Copper Center, the average length of the day in September is 12h and 53min.
On the first day of September in Copper Center, sunrise is at 6:33 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 7:13 pm AKDT.

Sunshine

In September, the average sunshine is 9h.

UV index

January through April, September through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: During September, 2 as the daily maximum UV index converts into the following advice:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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Frequently asked questions

What is the temperature in September in Copper Center?

During September, Copper Center experiences an average high-temperature of 51.6°F (10.9°C) and a low-temperature of 36.5°F (2.5°C).

What is the average humidity in September in Copper Center?

In Copper Center, Alaska, the average relative humidity in September is 72%.

How much does it rain in Copper Center in September?

In Copper Center, Alaska, in September, it is raining for 10.1 days, with typically 0.79" (20mm) of accumulated precipitation.

When does it start snowing in Copper Center?

September is the first month it typically snows in Copper Center. Throughout September, in the average 0.5 snowfall days, it receives 0.2" (5mm) of snow.

What is the average length of the day in September in Copper Center?

In September, the average day length is 12h and 53min.

When are sunrise and sunset in September in Copper Center?

In September, on the first day of the month, sunrise is at 6:33 am and sunset at 8:48 pm. On the last day of the month, in Copper Center, Alaska, sunrise is at 7:48 am and sunset at 7:13 pm AKDT.

How many hours of sunshine does Copper Center have in September?

In Copper Center, the average sunshine duration in September is 9h.

When is the lowest UV index in Copper Center?

The months with the lowest UV index in Copper Center are January through April, September through December, with an average maximum UV index of 2.

How high is the UV index in September in Copper Center?

The average daily maximum UV index in September in Copper Center is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
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
Copper Center, AK

Average temperature in September - Copper Center, AK
  • Average high temperature in September: 51.6°F

The warmest month (with the highest average high temperature) is July (67.5°F).
The month with the lowest average high temperature is January (9.1°F).

  • Average low temperature in September: 36.5°F

The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is January (-1.8°F).

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Average pressure in September
Copper Center, AK

Average pressure in September - Copper Center, AK
  • Average pressure in September: 29.78"Hg

The month with the highest atmospheric pressure is July (29.95"Hg).
The months with the lowest atmospheric pressure are September, October, November and December (29.78"Hg).

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Average wind speed in September
Copper Center, AK

Average wind speed in September - Copper Center, AK
  • Average wind speed in September: 5.6mph

The windiest month (with the highest average wind speed) is June (6.2mph).
The calmest months (with the lowest average wind speed) are January and December (4.5mph).

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Average humidity in September
Copper Center, AK

Average humidity in September - Copper Center, AK
  • Average humidity in September: 72%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is June (57%).

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Average rainfall in September
Copper Center, AK

Average rainfall in September - Copper Center, AK
  • Average rainfall in September: 0.79"

The wettest month (with the highest rainfall) is August (0.91").
The driest month (with the least rainfall) is April (0.2").

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Average rainfall days in September
Copper Center, AK

Average rainfall days in September - Copper Center, AK
  • Average rainfall days in September: 10.1 days

The month with the highest number of rainy days is August (11.3 days).
The months with the least rainy days are February and November (3.7 days).

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Average snowfall in September
Copper Center, AK

Average snowfall in September - Copper Center, AK
  • Average snowfall in September: 0.2"

The month with the highest snowfall is December (4.57").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Copper Center, AK

Average snowfall days in September - Copper Center, AK
  • Average snowfall days in September: 0.5 days

The month with the highest number of snowfall days is December (11.2 days).
The months with the least snowfall days are June and July (0 days).

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Average daylight in September /
Average sunshine in September
Copper Center, AK

Average daylight in September / Average sunshine in September - Copper Center, AK
  • Average daylight in September: 12h and 5min

The month with the longest days is June (Average daylight: 19h and 30min).
The month with the shortest days is December (Average daylight: 5h and 24min).

  • Average sunshine in September: 9h and 0min

The month with the most sunshine is June (Average sunshine: 14h and 12min).
The months with the least sunshine are January and December (Average sunshine: 3h and 54min).

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Average sunshine days in September
Copper Center, AK

Average sunshine days in September - Copper Center, AK
  • Average sunshine days in September: 17.6 days

The month with the most sunshine days is March (24.2 days).
The month with the least sunshine days is August (17.3 days).

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Average UV index in September
Copper Center, AK

Average UV index in September - Copper Center, AK
  • Average UV index in September: 2

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, September, October, November and December (UV index 2).

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Average cloud cover in September
Copper Center, AK

Average cloud cover in September - Copper Center, AK
  • Average cloud cover in September: 39

The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in September
Copper Center, AK

Average visibility in September - Copper Center, AK
  • Average visibility in September: 6mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and March (4mi).

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Copper Center, Alaska, USA

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