September weather forecast
Kachemak Silo, AK

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Weather in September

September, the first month of the autumn in Kachemak Silo, is also a fresh month, with temperature in the range of an average low of 43.9°F (6.6°C) and an average high of 51.3°F (10.7°C).

Temperature

September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's moderate 56.7°F (13.7°C) to a fresh 51.3°F (10.7°C). During the September nights, Kachemak Silo's temperature maintains an average close to the daytime highs, settling at a frosty 43.9°F (6.6°C).

Humidity

In September, the average relative humidity is 82%.

Rainfall

In Kachemak Silo, in September, it is raining for 19.9 days, with typically 3.86" (98mm) of accumulated precipitation. Throughout the year, in Kachemak Silo, there are 183.8 rainfall days, and 35.16" (893mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in Kachemak Silo. September is the first month it typically snows in Kachemak Silo. Throughout September, in the average 0.3 snowfall days, it receives 0.39" (10mm) of snow. In Kachemak Silo, during the entire year, snow falls for 78.8 days and aggregates up to 48.43" (1230mm) of snow.

Daylight

The average length of the day in September in Kachemak Silo is 12h and 49min.
On the first day of the month, sunrise is at 7:02 am and sunset at 9:05 pm. On the last day of September, sunrise is at 8:09 am and sunset at 7:38 pm AKDT.

Sunshine

In September, the average sunshine is 5.9h.

UV index

In Kachemak Silo, the average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 2 during September translates into the following directions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

What is the average September temperature in Kachemak Silo?

In September, in Kachemak Silo, the average high-temperature is 51.3°F (10.7°C), and the average low-temperature is 43.9°F (6.6°C).

What is the average humidity in September in Kachemak Silo?

The average relative humidity in September is 82%.

How much does it rain in Kachemak Silo in September?

In Kachemak Silo, Alaska, during September, the rain falls for 19.9 days and regularly aggregates up to 3.86" (98mm) of precipitation.

When does it start snowing in Kachemak Silo?

September is the first month it typically snows in Kachemak Silo, Alaska. Throughout September, in the average 0.3 snowfall days, it receives 0.39" (10mm) of snow.

What is the average length of the day in September in Kachemak Silo?

In Kachemak Silo, the average day length in September is 12h and 49min.

When is the sunrise / sunset in September in Kachemak Silo?

On the first day of September, sunrise is at 7:02 am and sunset at 9:05 pm. On the last day of the month, sunrise is at 8:09 am and sunset at 7:38 pm AKDT.

How long on average sun shines in September in Kachemak Silo?

The average sunshine duration in September is 5.9h.

How high is the UV index in September in Kachemak Silo?

In September, the average daily maximum UV index in Kachemak Silo is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to 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
Kachemak Silo, AK

Average temperature in September - Kachemak Silo, AK
  • Average high temperature in September: 51.3°F

The warmest month (with the highest average high temperature) is July (57.7°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in September: 43.9°F

The months with the highest average low temperature are July and August (48.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in September
Kachemak Silo, AK

Average pressure in September - Kachemak Silo, AK
  • Average pressure in September: 29.72"Hg

The month with the highest atmospheric pressure is July (29.96"Hg).
The month with the lowest atmospheric pressure is December (29.6"Hg).

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Average wind speed in September
Kachemak Silo, AK

Average wind speed in September - Kachemak Silo, AK
  • Average wind speed in September: 6.6mph

The windiest month (with the highest average wind speed) is November (8.8mph).
The calmest month (with the lowest average wind speed) is June (5.1mph).

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Average humidity in September
Kachemak Silo, AK

Average humidity in September - Kachemak Silo, AK
  • Average humidity in September: 82%

The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is May (76%).

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Average rainfall in September
Kachemak Silo, AK

Average rainfall in September - Kachemak Silo, AK
  • Average rainfall in September: 3.86"

The wettest month (with the highest rainfall) is December (4.65").
The driest month (with the least rainfall) is June (1.54").

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Average rainfall days in September
Kachemak Silo, AK

Average rainfall days in September - Kachemak Silo, AK
  • Average rainfall days in September: 19.9 days

The month with the highest number of rainy days is September (19.9 days).
The month with the least rainy days is February (9 days).

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Average snowfall in September
Kachemak Silo, AK

Average snowfall in September - Kachemak Silo, AK
  • Average snowfall in September: 0.39"

The month with the highest snowfall is December (11.54").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Kachemak Silo, AK

Average snowfall days in September - Kachemak Silo, AK
  • Average snowfall days in September: 0.3 days

The month with the highest number of snowfall days is December (14.9 days).
The months with the least snowfall days are June and August (0 days).

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Average daylight in September /
Average sunshine in September
Kachemak Silo, AK

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

The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 6min).

  • Average sunshine in September: 5h and 5min

The months with the most sunshine are June and July (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
Kachemak Silo, AK

Average sunshine days in September - Kachemak Silo, AK
  • Average sunshine days in September: 9.1 days

The months with the most sunshine days are March and July (12.3 days).
The month with the least sunshine days is December (8.5 days).

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Average UV index in September
Kachemak Silo, AK

Average UV index in September - Kachemak Silo, AK
  • Average UV index in September: 2

The month with the highest UV index is July (UV index 4).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in September
Kachemak Silo, AK

Average cloud cover in September - Kachemak Silo, AK
  • Average cloud cover in September: 54

The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 52).

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Average visibility in September
Kachemak Silo, AK

Average visibility in September - Kachemak Silo, AK
  • Average visibility in September: 6mi

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

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Kachemak Silo, Alaska, USA

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