September weather forecast and climate
McKinley Park, AK

The landscape of the famed McKinley Park in the Alaska Denali National Park
The landscape of the famed McKinley Park in the Alaska Denali National Park

Weather in September

September, the first month of the autumn, in McKinley Park, is also a frosty month, with average temperature ranging between min 31.5°F (-0.3°C) and max 45°F (7.2°C).

Temperature

In McKinley Park, the average high-temperature drops, from a fresh 55.2°F (12.9°C) in August, to a frosty 45°F (7.2°C). In McKinley Park, the average low-temperature is 31.5°F (-0.3°C).

Humidity

In McKinley Park, the average relative humidity in September is 82%.

Rainfall

In McKinley Park, in September, during 15.3 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, in McKinley Park, there are 129.7 rainfall days, and 15.04" (382mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, August through December. In McKinley Park, in September, during 4.1 snowfall days, 1.85" (47mm) of snow is typically accumulated. In McKinley Park, during the entire year, snow falls for 116.3 days, and aggregates up to 42.13" (1070mm) of snow.

Daylight

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

Sunshine

The average sunshine in September is 7.5h.

UV index

The average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 2 interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in September in McKinley Park?

In September, in McKinley Park, the average high-temperature is 45°F (7.2°C), and the average low-temperature is 31.5°F (-0.3°C).

What is the average humidity in September in McKinley Park?

In McKinley Park, Alaska, the average relative humidity in September is 82%.

How much does it rain in McKinley Park in September?

In September, the rain falls for 15.3 days. Throughout September, 1.42" (36mm) of precipitation is accumulated.

How much does it snow in McKinley Park in September?

In McKinley Park, in September, during 4.1 snowfall days, 1.85" (47mm) of snow is typically accumulated.

How many hours of daylight does McKinley Park have in September?

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

How long on average sun shines in September in McKinley Park?

In McKinley Park, the average sunshine in September is 7.5h.

What is the UV index intensity in September in McKinley Park?

In McKinley Park, the average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays.

Average temperature in September
McKinley Park, AK

Average temperature in September - McKinley Park, AK
  • Average high temperature in September: 45°F

The warmest month (with the highest average high temperature) is July (61.2°F).
The month with the lowest average high temperature is January (2.8°F).

  • Average low temperature in September: 31.5°F

The month with the highest average low temperature is July (43.3°F).
The coldest month (with the lowest average low temperature) is January (-8°F).

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Average pressure in September
McKinley Park, AK

Average pressure in September - McKinley Park, AK
  • Average pressure in September: 29.76"

The month with the highest atmospheric pressure is February (29.93").
The month with the lowest atmospheric pressure is September (29.76").

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Average wind speed in September
McKinley Park, AK

Average wind speed in September - McKinley Park, AK
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is December (5.6mph).
The calmest month (with the lowest average wind speed) is June (4.7mph).

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Average humidity in September
McKinley Park, AK

Average humidity in September - McKinley Park, AK
  • Average humidity in September: 82%

The month with the highest relative humidity is March (93%).
The month with the lowest relative humidity is June (67%).

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Average rainfall in September
McKinley Park, AK

Average rainfall in September - McKinley Park, AK
  • Average rainfall in September: 1.42"

The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in September
McKinley Park, AK

Average rainfall days in September - McKinley Park, AK
  • Average rainfall days in September: 15.3 days

The month with the highest number of rainy days is June (19.9 days).
The month with the least rainy days is February (3.8 days).

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Average snowfall in September
McKinley Park, AK

Average snowfall in September - McKinley Park, AK
  • Average snowfall in September: 1.85"

The month with the highest snowfall is October (7.4").
Months with the least snowfall are June and July (0").

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Average snowfall days in September
McKinley Park, AK

Average snowfall days in September - McKinley Park, AK
  • Average snowfall days in September: 4.1 days

The month with the highest number of snowfall days is March (18.8 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
McKinley Park, AK

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

The month with the longest days is June (Average daylight: 20.5h).
The month with the shortest days is December (Average daylight: 4.6h).

  • Average sunshine in September: 7.5h

The month with the most sunshine is June (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 3.3h).

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Average sunshine days in September
McKinley Park, AK

Average sunshine days in September - McKinley Park, AK
  • Average sunshine days in September: 10.3 days

The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is June (7.9 days).

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Average UV index in September
McKinley Park, AK

Average UV index in September - McKinley Park, AK
  • Average UV index in September: 2

Months with the highest UV index are June and July (UV index 4).
Months with the lowest UV index are January, February, March, October and December (UV index 1).

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Average cloud cover in September
McKinley Park, AK

Average cloud cover in September - McKinley Park, AK
  • Average cloud cover in September: 50

The month with the most cloud cover is March (Cloud cover 59).
The month with the least cloud cover is May (Cloud cover 41).

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Average visibility in September
McKinley Park, AK

Average visibility in September - McKinley Park, AK
  • Average visibility in September: 5mi

Months with the highest visibility are May, June and July (6mi).
Months with the lowest visibility are January and March (3mi).

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