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

September weather forecast and climate
Girdwood, AK

The first month of the autumn, September, is also a fresh month in Girdwood, Alaska, with average temperature ranging between min 39.7°F (4.3°C) and max 55°F (12.8°C).

Temperature

In Girdwood, the average high-temperature in September slightly decreases, from an enjoyable 63.1°F (17.3°C) in August, to a fresh 55°F (12.8°C). The average low-temperature, in Girdwood, is 39.7°F (4.3°C).

Rainfall

In Girdwood, during September, the rain falls for 18.5 days and regularly aggregates up to 7.8" (198.1mm) of precipitation. In Girdwood, Alaska, during the entire year, the rain falls for 198.4 days and collects up to 70.7" (1795.4mm) of precipitation.

Snowfall

In Girdwood, in September, it doesn't snow. In October, it regularly snows. In Girdwood, Alaska, during the entire year, snow aggregates up to 218" (5537mm).

Daylight

In Girdwood, the average length of the day in September is 12.8h.

What is the temperature in September in Girdwood?

In Girdwood, in September, the average high-temperature is 55°F (12.8°C), and the average low-temperature is 39.7°F (4.3°C).

How many days does it rain in September in Girdwood?

In Girdwood, in September, during 18.5 rainfall days, 7.8" (198.1mm) of precipitation is typically accumulated.

Does it snow in Girdwood in September?

In Girdwood, Alaska, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Girdwood?

The average length of the day in September in Girdwood, Alaska, is 12.8h.
Average temperature in September - Girdwood, AK
  • Average high temperature in September: 55.1°F

The warmest month (with the highest average high temperature) is July (65.1°F).
The month with the lowest average high temperature is January (27.4°F).

  • Average low temperature in September: 39.8°F

The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is January (16.6°F).

Average rainfall in September - Girdwood, AK
  • Average rainfall in September: 7.8"

The wettest month (with the highest rainfall) is December (9.3").
The driest month (with the lowest rainfall) is June (2.3").

Average rainfall days in September - Girdwood, AK
  • Average rainfall days in September: 18.5 days

The month with the highest number of rainy days is December (21.4 days).
The month with the lowest number of rainy days is June (11.2 days).

Average snowfall in September - Girdwood, AK
  • Average snowfall in September: 0"

The month with the highest snowfall is December (57.1").
Months with the lowest snowfall are June, July, August and September (0").

Average snowfall days in September - Girdwood, AK
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (13.9 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average daylight in September - Girdwood, AK
  • Average daylight in September: 12.8h

The month with the longest days is June (Average daylight: 19.1h).
The month with shortest days is December (Average daylight: 5.7h).