Big Delta
Alaska, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Big Delta, AK

September, the first month of the autumn, in Big Delta, is still a cool month, with temperature in the range of an average low of 35.8°F (2.1°C) and an average high of 52.7°F (11.5°C).

Temperature

In Big Delta, the average high-temperature decreases, from a comfortable 64.6°F (18.1°C) in August, to a fresh 52.7°F (11.5°C). In September, the average low-temperature is 35.8°F (2.1°C).

Rainfall

In Big Delta, in September, it is raining for 9 days, with typically 1.1" (26.7mm) of accumulated precipitation. In Big Delta, during the entire year, the rain falls for 93 days and collects up to 11.3" (286.8mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December.

Daylight

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

What is the temperature in September in Big Delta?

In September, in Big Delta, Alaska, the average high-temperature is 52.7°F (11.5°C), and the average low-temperature is 35.8°F (2.1°C).

How much does it rain in Big Delta in September?

In Big Delta, during September, the rain falls for 9 days and regularly aggregates up to 1.1" (26.7mm) of precipitation.

When does it start to snow in Big Delta?

September is the first month it typically snows. Throughout September, Big Delta receives 1.6" (40.6mm) of snow.

How many hours of daylight does Big Delta have in September?

The average length of the day in September in Big Delta, Alaska, is 13h.
Average temperature in September - Big Delta, AK
  • Average high temperature in September: 52.7°F

The warmest month (with the highest average high temperature) is July (69.3°F).
The month with the lowest average high temperature is January (3.6°F).

  • Average low temperature in September: 35.7°F

The month with the highest average low temperature is July (50.7°F).
The coldest month (with the lowest average low temperature) is January (-10.8°F).

Average rainfall in September - Big Delta, AK
  • Average rainfall in September: 1.1"

The wettest month (with the highest rainfall) is July (2.6").
The driest month (with the lowest rainfall) is March (0.2").

Average rainfall days in September - Big Delta, AK
  • Average rainfall days in September: 9 days

The month with the highest number of rainy days is July (13 days).
Months with the lowest number of rainy days are March and April (4 days).

Average snowfall in September - Big Delta, AK
  • Average snowfall in September: 1.6"

The month with the highest snowfall is October (9.2").
Months with the lowest snowfall are June, July and August (0").

Average daylight in September - Big Delta, AK
  • Average daylight in September: 13h

The month with the longest days is June (Average daylight: 20.9h).
The month with shortest days is December (Average daylight: 4.4h).