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

September weather forecast and climate
Tonsina, AK

The first month of the autumn, September, is also a fresh month in Tonsina, Alaska, with temperature in the range of an average high of 54.7°F (12.6°C) and an average low of 30°F (-1.1°C).

Temperature

In Tonsina, the average high-temperature drops, from a comfortable 65.1°F (18.4°C) in August, to a cool 54.7°F (12.6°C). The average low-temperature, in September, is 30°F (-1.1°C).

Rainfall

In September, in Tonsina, the rain falls for 9 days. Throughout September, 1.3" (33.3mm) of precipitation is accumulated. In Tonsina, Alaska, during the entire year, the rain falls for 82 days and collects up to 12.6" (321.2mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Tonsina.

Daylight

The average length of the day in September is 12.9h.

What is the temperature in September in Tonsina?

In Tonsina, in September, the average high-temperature is 54.7°F (12.6°C), and the average low-temperature is 30°F (-1.1°C).

How much does it rain in Tonsina in September?

In Tonsina, during September, the rain falls for 9 days and regularly aggregates up to 1.3" (33.3mm) of precipitation.

When does it start to snow in Tonsina?

September is the first month it typically snows in Tonsina. Throughout September, Tonsina receives 0.9" (22.9mm) of snow.

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

The average length of the day in September in Tonsina, Alaska, is 12.9h.
Average temperature in September - Tonsina, AK
  • Average high temperature in September: 54.6°F

The warmest month (with the highest average high temperature) is July (69.1°F).
The month with the lowest average high temperature is January (3.3°F).

  • Average low temperature in September: 30°F

The month with the highest average low temperature is July (43.2°F).
The coldest month (with the lowest average low temperature) is January (-14.1°F).

Average rainfall in September - Tonsina, AK
  • Average rainfall in September: 1.3"

The wettest month (with the highest rainfall) is July (1.8").
The driest month (with the lowest rainfall) is April (0.3").

Average rainfall days in September - Tonsina, AK
  • Average rainfall days in September: 9 days

The month with the highest number of rainy days is July (11 days).
The month with the lowest number of rainy days is April (2 days).

Average snowfall in September - Tonsina, AK
  • Average snowfall in September: 0.9"

The month with the highest snowfall is November (12.7").
Months with the lowest snowfall are June, July and August (0").

Average daylight in September - Tonsina, AK
  • Average daylight in September: 12.9h

The month with the longest days is June (Average daylight: 19.4h).
The month with shortest days is December (Average daylight: 5.5h).