Nome
Alaska, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Nome, AK

Broken trees, a small river, and shrubs afar in the historical gold rush site of Nome Creek, Alaska, in the White Mountains
Broken trees, a small river, and shrubs afar in the historical gold rush site of Nome Creek, Alaska, in the White Mountains
The first month of the autumn, September, is still a chilly month in Nome, Alaska, with average temperature ranging between max 48.7°F (9.3°C) and min 36.9°F (2.7°C).

Temperature

In Nome, Alaska, the average high-temperature in September slightly decreases, from a mild 55.9°F (13.3°C) in August, to a chilly 48.7°F (9.3°C). In September, in Nome, the average low-temperature is 36.9°F (2.7°C).

Humidity

The average relative humidity in September is 75.1%.

Rainfall

In September, the rain falls for 14.9 days. Throughout September, 2.4" (62.2mm) of precipitation is accumulated. Throughout the year, in Nome, there are 132.5 rainfall days, and 16.8" (426.9mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.9 snowfall days, it receives 0.6" (15.2mm) of snow. In Nome, during the entire year, snow falls for 72.7 days, and aggregates up to 75.7" (1922.7mm) of snow.

Ocean temperature

In Nome, in September, the average water temperature is 48.6°F (9.2°C).
Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

Daylight

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

Sunshine

In Nome, the average sunshine is 5.1h.

UV index

In September, the average daily maximum UV index in Nome, Alaska, is 2. A UV Index of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 2 transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in September in Nome?

In Nome, Alaska, in September, the average high-temperature is 48.7°F (9.3°C), and the average low-temperature is 36.9°F (2.7°C).

What is the average humidity in September in Nome?

The average relative humidity in September in Nome, Alaska, is 75.1%.

How much does it rain in Nome in September?

In Nome, in September, it is raining for 14.9 days, with typically 2.4" (62.2mm) of accumulated precipitation.

When does it start snowing in Nome?

September is the first month it typically snows in Nome. Throughout September, in the average 0.9 snowfall days, it receives 0.6" (15.2mm) of snow.

What is the ocean temperature in September in Nome?

In Nome, the average seawater temperature in September is 48.6°F (9.2°C). Swimming in 48.6°F (9.2°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Nome have in September?

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

How many hours of sunshine does Nome have in September?

In Nome, the average sunshine in September is 5.1h.

What is the UV index reading in September in Nome?

The average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a low health threat from the exposure to the Sun's UV rays.
Average temperature in September - Nome, AK
  • Average high temperature in September: 48.7°F

The warmest month (with the highest average high temperature) is July (58.2°F).
The month with the lowest average high temperature is January (13.1°F).

  • Average low temperature in September: 36.9°F

The month with the highest average low temperature is July (46.2°F).
The coldest month (with the lowest average low temperature) is January (-2.8°F).

Average humidity in September - Nome, AK
  • Average humidity in September: 75.1%

The month with the highest relative humidity is August (79.7%).
The month with the lowest relative humidity is February (69.4%).

Average rainfall in September - Nome, AK
  • Average rainfall in September: 2.5"

The wettest month (with the highest rainfall) is August (3.2").
The driest month (with the lowest rainfall) is March (0.7").

Average rainfall days in September - Nome, AK
  • Average rainfall days in September: 14.9 days

The month with the highest number of rainy days is August (15.5 days).
Months with the lowest number of rainy days are April and June (8.5 days).

Average snowfall in September - Nome, AK
  • Average snowfall in September: 0.6"

The month with the highest snowfall is December (14.5").
Months with the lowest snowfall are July and August (0").

Average snowfall days in September - Nome, AK
  • Average snowfall days in September: 0.9 days

The month with the highest number of snowfall days is December (12.1 days).
Months with the lowest number of snowfall days are July and August (0 days).

Average sea temperature in September - Nome, AK
  • Average sea temperature in September: 48.5°F

The best month for swimming (with the highest average sea temperature) is August (52.5°F).
Coldest months (with the lowest average sea temperature) are March and April (28.9°F).

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

The month with the longest days is June (Average daylight: 21.2h).
The month with shortest days is December (Average daylight: 4.2h).

  • Average sunshine in September: 5.1h

The month with most sunshine is May (Average sunshine: 9.4h).
The month with least sunshine is December (Average sunshine: 1.7h).

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

Months with the highest UV index are June and July (UV index 4).
Months with the lowest UV index are January, February, November and December (UV index 0).