September weather forecast and climate
Gulkana, AK

Weather in September

September, the first month of the autumn, in Gulkana, is also a fresh month, with average temperature ranging between max 51.6°F (10.9°C) and min 36.5°F (2.5°C).

Temperature

In September, the average high-temperature decreases, from a comfortable 61.9°F (16.6°C) in August, to a cool 51.6°F (10.9°C). In Gulkana, the average low-temperature is 36.5°F (2.5°C).

Humidity

The average relative humidity in Gulkana is 72%.

Rainfall

In Gulkana, Alaska, during 10.1 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. In Gulkana, during the entire year, the rain falls for 81.1 days and collects up to 5.71" (145mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day in Gulkana, Alaska, is 12.9h.

Sunshine

The average sunshine in September 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 reading of 2, and below, represents a minimal health hazard from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 2 translate into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in September in Gulkana?

In Gulkana, in September, the average high-temperature is 51.6°F (10.9°C), and the average low-temperature is 36.5°F (2.5°C).

What is the average humidity in September in Gulkana?

In Gulkana, the average relative humidity in September is 72%.

How many days does it rain in September in Gulkana?

In Gulkana, in September, during 10.1 rainfall days, 0.79" (20mm) of precipitation is typically accumulated.

When does it start snowing in Gulkana?

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

How many hours of daylight does Gulkana have in September?

The average length of the day in September in Gulkana is 12.9h.

How long on average sun shines in September in Gulkana?

In Gulkana, Alaska, the average sunshine in September is 9h.

What are the months with the lowest UV index in Gulkana?

Months with the lowest UV index in Gulkana, Alaska, are January through April, September through December, with an average maximum UV index of 2.

What is the UV index intensity in September in Gulkana?

In September, the average daily maximum UV index in Gulkana, Alaska, is 2. A UV Index value of 2, and less, symbolizes a low health threat from the exposure to the Sun's UV rays.

Average temperature in September
Gulkana, AK

Average temperature in September - Gulkana, 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
Gulkana, AK

Average pressure in September - Gulkana, AK
  • Average pressure in September: 29.78"

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

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Average wind speed in September
Gulkana, AK

Average wind speed in September - Gulkana, 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
Gulkana, AK

Average humidity in September - Gulkana, 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
Gulkana, AK

Average rainfall in September - Gulkana, 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
Gulkana, AK

Average rainfall days in September - Gulkana, AK
  • Average rainfall days in September: 10.1 days

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

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Average snowfall in September
Gulkana, AK

Average snowfall in September - Gulkana, AK
  • Average snowfall in September: 0.2"

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

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Average snowfall days in September
Gulkana, AK

Average snowfall days in September - Gulkana, AK
  • Average snowfall days in September: 0.5 days

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

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Average daylight in September /
Average sunshine in September
Gulkana, AK

Average daylight in September / Average sunshine in September - Gulkana, AK
  • Average daylight in September: 12.9h

The month with the longest days is June (Average daylight: 19.7h).
The month with the shortest days is December (Average daylight: 5.3h).

  • Average sunshine in September: 9h

The month with the most sunshine is June (Average sunshine: 14.2h).
Months with the least sunshine are January and December (Average sunshine: 3.9).

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Average sunshine days in September
Gulkana, AK

Average sunshine days in September - Gulkana, 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
Gulkana, AK

Average UV index in September - Gulkana, AK
  • Average UV index in September: 2

The month with the highest UV index is July (UV index 5).
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
Gulkana, AK

Average cloud cover in September - Gulkana, 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
Gulkana, AK

Average visibility in September - Gulkana, AK
  • Average visibility in September: 6mi

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

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