September weather forecast and climate
Chatanika, AK

Weather in September

September, the first month of the autumn, in Chatanika, is also a fresh month, with average temperature fluctuating between 36.3°F (2.4°C) and 52.5°F (11.4°C).

Temperature

In Chatanika, the average high-temperature in September decreases, from an enjoyable 63.9°F (17.7°C) in August, to a cool 52.5°F (11.4°C). In Chatanika, Alaska, in September, the average low-temperature is 36.3°F (2.4°C).

Humidity

In September, the average relative humidity is 75%.

Rainfall

In Chatanika, it is raining for 13.1 days, with typically 1.26" (32mm) of accumulated precipitation. In Chatanika, during the entire year, the rain falls for 100.5 days and collects up to 10.87" (276mm) of precipitation.

Snowfall

Months with snowfall in Chatanika, Alaska, are January through May, August through December. In September, in Chatanika, it is snowing for 1.6 days. Throughout September, 0.79" (20mm) of snow is accumulated. In Chatanika, during the entire year, snow falls for 74.3 days, and aggregates up to 24.49" (622mm) of snow.

Daylight

In September, the average length of the day in Chatanika is 13h.

Sunshine

In Chatanika, the average sunshine is 7.4h.

UV index

In September, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 2 transform into the following instructions:
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 solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. 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 Chatanika?

In September, in Chatanika, Alaska, the average high-temperature is 52.5°F (11.4°C), and the average low-temperature is 36.3°F (2.4°C).

What is the average humidity in September in Chatanika?

In Chatanika, the average relative humidity in September is 75%.

How much does it rain in Chatanika in September?

In September, the rain falls for 13.1 days. Throughout September, 1.26" (32mm) of precipitation is accumulated.

How many days does it snow in September in Chatanika?

In Chatanika, in September, during 1.6 snowfall days, 0.79" (20mm) of snow is typically accumulated.

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

In September, the average length of the day in Chatanika is 13h.

How long on average sun shines in September in Chatanika?

In September, the average sunshine in Chatanika, Alaska, is 7.4h.

What is the UV index intensity in September in Chatanika?

The average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to the UV radiation.

Average temperature in September
Chatanika, AK

Average temperature in September - Chatanika, AK
  • Average high temperature in September: 52.5°F

The warmest month (with the highest average high temperature) is July (70.7°F).
The month with the lowest average high temperature is January (2.1°F).

  • Average low temperature in September: 36.3°F

The month with the highest average low temperature is July (50.5°F).
The coldest month (with the lowest average low temperature) is January (-9°F).

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Average pressure in September
Chatanika, AK

Average pressure in September - Chatanika, AK
  • Average pressure in September: 29.77"

The month with the highest atmospheric pressure is February (29.97").
The month with the lowest atmospheric pressure is September (29.77").

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Average wind speed in September
Chatanika, AK

Average wind speed in September - Chatanika, AK
  • Average wind speed in September: 4.4mph

The windiest month (with the highest average wind speed) is May (5mph).
The calmest months (with the lowest average wind speed) are October, November and December (4.2mph).

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Average humidity in September
Chatanika, AK

Average humidity in September - Chatanika, AK
  • Average humidity in September: 75%

The month with the highest relative humidity is March (93%).
The month with the lowest relative humidity is June (56%).

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Average rainfall in September
Chatanika, AK

Average rainfall in September - Chatanika, AK
  • Average rainfall in September: 1.26"

The wettest month (with the highest rainfall) is August (2.44").
The driest month (with the least rainfall) is January (0.31").

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Average rainfall days in September
Chatanika, AK

Average rainfall days in September - Chatanika, AK
  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is August (16.4 days).
The month with the least rainy days is February (1.8 days).

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Average snowfall in September
Chatanika, AK

Average snowfall in September - Chatanika, AK
  • Average snowfall in September: 0.79"

The month with the highest snowfall is November (6.5").
Months with the least snowfall are June and July (0").

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Average snowfall days in September
Chatanika, AK

Average snowfall days in September - Chatanika, AK
  • Average snowfall days in September: 1.6 days

The month with the highest number of snowfall days is November (13.3 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
Chatanika, AK

Average daylight in September / Average sunshine in September - Chatanika, AK
  • Average daylight in September: 13h

The month with the longest days is June (Average daylight: 21.8h).
The month with the shortest days is December (Average daylight: 3.8h).

  • Average sunshine in September: 7.4h

The month with the most sunshine is June (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 2h).

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Average sunshine days in September
Chatanika, AK

Average sunshine days in September - Chatanika, AK
  • Average sunshine days in September: 14.1 days

The month with the most sunshine days is January (21.4 days).
The month with the least sunshine days is April (12.2 days).

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Average UV index in September
Chatanika, AK

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

Months with the highest UV index are June and July (UV index 5).
Months with the lowest UV index are January, February, March, November and December (UV index 1).

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Average cloud cover in September
Chatanika, AK

Average cloud cover in September - Chatanika, AK
  • Average cloud cover in September: 48

Months with the most cloud cover are March, April and November (Cloud cover 53).
The month with the least cloud cover is May (Cloud cover 39).

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Average visibility in September
Chatanika, AK

Average visibility in September - Chatanika, 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, February, March, April, November and December (4mi).

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