September weather forecast
Wainwright, AK

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Weather in September

The first month of the autumn, September, is also a wintry month in Wainwright, Alaska, with an average temperature fluctuating between 39.9°F (4.4°C) and 34.7°F (1.5°C).

Temperature

Wainwright's average high-temperature in September is a wintry 39.9°F (4.4°C), marking an insignificant difference from the 45.1°F (7.3°C) of August. Wainwright's nocturnal September readings average at 34.7°F (1.5°C), showing little variation from the daytime temperatures.

Humidity

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

Rainfall

In Wainwright, in September, during 9.9 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. In Wainwright, Alaska, during the entire year, the rain falls for 66.3 days and collects up to 7.99" (203mm) of precipitation.

Snowfall

Months with snowfall in Wainwright are January through December. In Wainwright, in September, snow falls for 10.1 days, with typically accumulated 1.61" (41mm) of snow. Throughout the year, there are 134.6 snowfall days, and 19.88" (505mm) of snow is accumulated.

Daylight

In September, the average length of the day is 13h and 20min.
On the first day of the month, sunrise is at 6:56 am and sunset at 10:23 pm. On the last day of September, in Wainwright, sunrise is at 8:56 am and sunset at 8:02 pm AKDT.

Sunshine

In September, the average sunshine is 4.1h.

UV index

January through March, September through December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 1 in September transforms into the following instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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Frequently asked questions

Is September cold in Wainwright?

September temperatures in Wainwright vary between a high-temperature of 39.9°F (4.4°C) and a low-temperature of 34.7°F (1.5°C).

What is the average humidity in September in Wainwright?

In September, the average relative humidity is 82%.

How many days does it rain in September in Wainwright?

In Wainwright, Alaska, during September, the rain falls for 9.9 days and regularly aggregates up to 0.83" (21mm) of precipitation.

How much does it snow in Wainwright in September?

In Wainwright, during September, snow falls for 10.1 days and regularly aggregates up to 1.61" (41mm) of snow.

How many hours of daylight does Wainwright have in September?

The average day length in September in Wainwright is 13h and 20min.

When are sunrise and sunset in September in Wainwright?

In September, on the first day of the month, sunrise is at 6:56 am and sunset at 10:23 pm. On the last day of the month, in Wainwright, Alaska, sunrise is at 8:56 am and sunset at 8:02 pm AKDT.

How long on average sun shines in September in Wainwright?

The average sunshine duration in September in Wainwright, Alaska, is 4.1h.

When is the lowest UV index in Wainwright?

January through March, September through December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index intensity in September in Wainwright?

The average daily maximum UV index in September in Wainwright is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Wainwright, AK

Average temperature in September - Wainwright, AK
  • Average high temperature in September: 39.9°F

The warmest month (with the highest average high temperature) is July (49.3°F).
The month with the lowest average high temperature is January (-1.8°F).

  • Average low temperature in September: 34.7°F

The month with the highest average low temperature is July (40.6°F).
The coldest month (with the lowest average low temperature) is January (-10.3°F).

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Average pressure in September
Wainwright, AK

Average pressure in September - Wainwright, AK
  • Average pressure in September: 29.84"Hg

The month with the highest atmospheric pressure is March (30.08"Hg).
The month with the lowest atmospheric pressure is September (29.84"Hg).

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Average wind speed in September
Wainwright, AK

Average wind speed in September - Wainwright, AK
  • Average wind speed in September: 12.4mph

The windiest month (with the highest average wind speed) is October (14.3mph).
The calmest month (with the lowest average wind speed) is May (10.7mph).

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Average humidity in September
Wainwright, AK

Average humidity in September - Wainwright, AK
  • Average humidity in September: 82%

The months with the highest relative humidity are January, February, March and December (94%).
The month with the lowest relative humidity is June (77%).

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Average rainfall in September
Wainwright, AK

Average rainfall in September - Wainwright, AK
  • Average rainfall in September: 0.83"

The wettest month (with the highest rainfall) is August (1.34").
The driest month (with the least rainfall) is January (0.31").

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Average rainfall days in September
Wainwright, AK

Average rainfall days in September - Wainwright, AK
  • Average rainfall days in September: 9.9 days

The months with the highest number of rainy days are July and August (13 days).
The month with the least rainy days is December (0.7 days).

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Average snowfall in September
Wainwright, AK

Average snowfall in September - Wainwright, AK
  • Average snowfall in September: 1.61"

The month with the highest snowfall is October (3.43").
The month with the least snowfall is July (0.08").

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Average snowfall days in September
Wainwright, AK

Average snowfall days in September - Wainwright, AK
  • Average snowfall days in September: 10.1 days

The month with the highest number of snowfall days is December (18.4 days).
The month with the least snowfall days is July (0.9 days).

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

Average daylight in September / Average sunshine in September - Wainwright, AK
  • Average daylight in September: 13h and 2min

The month with the longest days is August (Average daylight: 18h and 24min).
The months with the shortest days are June and December (Average daylight: 0h and 0min).

  • Average sunshine in September: 4h and 1min

The month with the most sunshine is April (Average sunshine: 5h and 36min).
The months with the least sunshine are July and December (Average sunshine: 0h and 24min).

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Average sunshine days in September
Wainwright, AK

Average sunshine days in September - Wainwright, AK
  • Average sunshine days in September: 9.7 days

The month with the most sunshine days is June (18.7 days).
The month with the least sunshine days is October (9.6 days).

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Average UV index in September
Wainwright, AK

Average UV index in September - Wainwright, AK
  • Average UV index in September: 1

The month with the highest UV index is June (UV index 3).
The months with the lowest UV index are January, February, March, September, October, November and December (UV index 1).

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Average cloud cover in September
Wainwright, AK

Average cloud cover in September - Wainwright, AK
  • Average cloud cover in September: 71

The month with the most cloud cover is December (Cloud cover 84).
The month with the least cloud cover is June (Cloud cover 47).

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Average visibility in September
Wainwright, AK

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

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

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Wainwright, Alaska, USA

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