September weather forecast and climate
Nikolai, AK

Weather in September

The first month of the autumn, September, is also a fresh month in Nikolai, Alaska, with average temperature ranging between max 50.9°F (10.5°C) and min 37.4°F (3°C).

Temperature

In September, the average high-temperature decreases, from a comfortable 61.3°F (16.3°C) in August, to a cool 50.9°F (10.5°C). The average low-temperature, in September, is 37.4°F (3°C).

Humidity

In Nikolai, the average relative humidity is 80%.

Rainfall

In Nikolai, Alaska, during September, the rain falls for 14.5 days and regularly aggregates up to 1.97" (50mm) of precipitation. In Nikolai, during the entire year, the rain falls for 111.7 days and collects up to 14.88" (378mm) of precipitation.

Snowfall

Months with snowfall in Nikolai, Alaska, are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 1.5 snowfall days, it receives 0.63" (16mm) of snow. Throughout the year, there are 96.1 snowfall days, and 38.66" (982mm) of snow is accumulated.

Daylight

In Nikolai, the average length of the day is 12.9h.

Sunshine

In Nikolai, the average sunshine in September is 5.6h.

UV index

In September, the average daily maximum UV index in Nikolai is 2. A UV Index value of 2, and less, symbolizes a low threat to health from the 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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 Nikolai?

In Nikolai, in September, the average high-temperature is 50.9°F (10.5°C), and the average low-temperature is 37.4°F (3°C).

What is the average humidity in September in Nikolai?

In September, the average relative humidity is 80%.

How much does it rain in Nikolai in September?

In September, in Nikolai, the rain falls for 14.5 days. Throughout September, 1.97" (50mm) of precipitation is accumulated.

When does it start to snow in Nikolai?

September is the first month it typically snows. Throughout September, in the average 1.5 snowfall days, it receives 0.63" (16mm) of snow.

How many hours of daylight does Nikolai have in September?

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

How long on average sun shines in September in Nikolai?

The average sunshine in September in Nikolai, Alaska, is 5.6h.

What is the UV index reading in September in Nikolai?

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

Average temperature in September
Nikolai, AK

Average temperature in September - Nikolai, AK
  • Average high temperature in September: 50.9°F

The warmest month (with the highest average high temperature) is July (67.1°F).
The month with the lowest average high temperature is January (2.5°F).

  • Average low temperature in September: 37.4°F

The month with the highest average low temperature is July (50°F).
The coldest month (with the lowest average low temperature) is January (-8°F).

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Average pressure in September
Nikolai, AK

Average pressure in September - Nikolai, AK
  • Average pressure in September: 29.75"

The month with the highest atmospheric pressure is July (29.92").
The month with the lowest atmospheric pressure is October (29.72").

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Average wind speed in September
Nikolai, AK

Average wind speed in September - Nikolai, AK
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is May (5.9mph).
The calmest months (with the lowest average wind speed) are February, November and December (5.3mph).

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Average humidity in September
Nikolai, AK

Average humidity in September - Nikolai, AK
  • Average humidity in September: 80%

The month with the highest relative humidity is March (94%).
The month with the lowest relative humidity is June (62%).

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Average rainfall in September
Nikolai, AK

Average rainfall in September - Nikolai, AK
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is August (2.13").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in September
Nikolai, AK

Average rainfall days in September - Nikolai, AK
  • Average rainfall days in September: 14.5 days

The month with the highest number of rainy days is August (18.9 days).
The month with the least rainy days is February (2.3 days).

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Average snowfall in September
Nikolai, AK

Average snowfall in September - Nikolai, AK
  • Average snowfall in September: 0.63"

The month with the highest snowfall is November (10.16").
Months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Nikolai, AK

Average snowfall days in September - Nikolai, AK
  • Average snowfall days in September: 1.5 days

Months with the highest number of snowfall days are March and November (15.8 days).
Months with the least snowfall days are June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 20.1h).
The month with the shortest days is December (Average daylight: 4.9h).

  • Average sunshine in September: 5.6h

The month with the most sunshine is May (Average sunshine: 10.1h).
The month with the least sunshine is December (Average sunshine: 2.4h).

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Average sunshine days in September
Nikolai, AK

Average sunshine days in September - Nikolai, AK
  • Average sunshine days in September: 11.4 days

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is August (9.6 days).

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Average UV index in September
Nikolai, AK

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

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

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Average cloud cover in September
Nikolai, AK

Average cloud cover in September - Nikolai, AK
  • Average cloud cover in September: 56

The month with the most cloud cover is April (Cloud cover 68).
Months with the least cloud cover are May and June (Cloud cover 47).

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Average visibility in September
Nikolai, AK

Average visibility in September - Nikolai, AK
  • Average visibility in September: 5mi

Months with the highest visibility are May, June and July (6mi).
Months with the lowest visibility are January, February, March, April, November and December (4mi).

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