September weather forecast
Twin Hills, AK

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Weather in September

September, the first month of the autumn in Twin Hills, is also a fresh month, with temperature in the range of an average high of 52°F (11.1°C) and an average low of 42.4°F (5.8°C).

Temperature

The commencement of September indicates a gentle shift in the average high-temperature, receding from August's refreshing 57.7°F (14.3°C) to a cool 52°F (11.1°C). Throughout September, Twin Hills encounters an average temperature drop to an icy 42.4°F (5.8°C).

Humidity

The average relative humidity in September in Twin Hills is 81%.

Rainfall

In Twin Hills, in September, during 16.5 rainfall days, 3.31" (84mm) of precipitation is typically accumulated. In Twin Hills, during the entire year, the rain falls for 144.9 days and collects up to 29.13" (740mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Twin Hills, Alaska, the average length of the day in September is 12h and 47min.
On the first day of September, sunrise is at 7:40 am and sunset at 9:40 pm. On the last day of the month, sunrise is at 8:46 am and sunset at 8:15 pm AKDT.

Sunshine

The average sunshine in September in Twin Hills, Alaska, is 5.2h.

UV index

In Twin Hills, the average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In September, the maximum UV index of 2 suggests this advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

What are September temperatures in Twin Hills?

September temperatures vary between a high-temperature of 52°F (11.1°C) and a low-temperature of 42.4°F (5.8°C).

What is the average humidity in September in Twin Hills?

The average relative humidity in September in Twin Hills, Alaska, is 81%.

How much does it rain in Twin Hills in September?

In Twin Hills, Alaska, during September, the rain falls for 16.5 days and regularly aggregates up to 3.31" (84mm) of precipitation.

When it does not snow in Twin Hills?

June through September are months without snowfall in Twin Hills.

Does it snow in Twin Hills in September?

In Twin Hills, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Twin Hills have in September?

In September, the average day length in Twin Hills is 12h and 47min.

What time are sunrise and sunset in September in Twin Hills?

In September, on the first day of the month, sunrise is at 7:40 am and sunset at 9:40 pm. On the last day of the month, in Twin Hills, sunrise is at 8:46 am and sunset at 8:15 pm AKDT.

How many hours of sunshine does Twin Hills have in September?

In September, the average sunshine duration in Twin Hills is 5.2h.

What is the UV index reading in September in Twin Hills?

In September, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Twin Hills, AK

Average temperature in September - Twin Hills, AK
  • Average high temperature in September: 52°F

The warmest month (with the highest average high temperature) is July (58.5°F).
The month with the lowest average high temperature is January (19.6°F).

  • Average low temperature in September: 42.4°F

The months with the highest average low temperature are July and August (47.8°F).
The coldest month (with the lowest average low temperature) is January (12°F).

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Average pressure in September
Twin Hills, AK

Average pressure in September - Twin Hills, AK
  • Average pressure in September: 29.72"Hg

The month with the highest atmospheric pressure is July (29.95"Hg).
The month with the lowest atmospheric pressure is December (29.59"Hg).

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Average wind speed in September
Twin Hills, AK

Average wind speed in September - Twin Hills, AK
  • Average wind speed in September: 9.9mph

The windiest month (with the highest average wind speed) is October (11.4mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).

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Average humidity in September
Twin Hills, AK

Average humidity in September - Twin Hills, AK
  • Average humidity in September: 81%

The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are May and June (73%).

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Average rainfall in September
Twin Hills, AK

Average rainfall in September - Twin Hills, AK
  • Average rainfall in September: 3.31"

The wettest month (with the highest rainfall) is October (3.98").
The driest month (with the least rainfall) is June (1.5").

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Average rainfall days in September
Twin Hills, AK

Average rainfall days in September - Twin Hills, AK
  • Average rainfall days in September: 16.5 days

The month with the highest number of rainy days is August (18.3 days).
The month with the least rainy days is February (5.4 days).

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Average snowfall in September
Twin Hills, AK

Average snowfall in September - Twin Hills, AK
  • Average snowfall in September: 0"

The month with the highest snowfall is February (8.86").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Twin Hills, AK

Average snowfall days in September - Twin Hills, AK
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is December (13.9 days).
The 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
Twin Hills, AK

Average daylight in September / Average sunshine in September - Twin Hills, AK
  • Average daylight in September: 12h and 5min

The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).

  • Average sunshine in September: 5h and 1min

The month with the most sunshine is June (Average sunshine: 8h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 36min).

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Average sunshine days in September
Twin Hills, AK

Average sunshine days in September - Twin Hills, AK
  • Average sunshine days in September: 11.5 days

The month with the most sunshine days is March (15.5 days).
The month with the least sunshine days is August (11.3 days).

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Average UV index in September
Twin Hills, AK

Average UV index in September - Twin Hills, AK
  • Average UV index in September: 2

The months with the highest UV index are May, June, July and August (UV index 3).
The months with the lowest UV index are February, November and December (UV index 1).

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Average cloud cover in September
Twin Hills, AK

Average cloud cover in September - Twin Hills, AK
  • Average cloud cover in September: 58

The month with the most cloud cover is August (Cloud cover 64).
The months with the least cloud cover are January and June (Cloud cover 53).

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Average visibility in September
Twin Hills, AK

Average visibility in September - Twin Hills, AK
  • Average visibility in September: 6mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).

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Twin Hills, Alaska, USA

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