Fossil
Oregon, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Fossil, OR

September, the first month of the autumn, in Fossil, is still a warm month, with temperature in the range of an average high of 76.5°F (24.7°C) and an average low of 40.3°F (4.6°C).

Temperature

In Fossil, the average high-temperature in September slightly decreases, from a warm 84.2°F (29°C) in August, to a still moderately hot 76.5°F (24.7°C). In September, in Fossil, the average low-temperature is 40.3°F (4.6°C).

Rainfall

In Fossil, during 3 rainfall days, 0.7" (18mm) of precipitation is typically accumulated. Throughout the year, there are 70 rainfall days, and 14.3" (364mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in September in Fossil, Oregon, is 12.5h.

What is the temperature in September in Fossil?

The average high-temperature, in September, is 76.5°F (24.7°C), while the average low-temperature is 40.3°F (4.6°C).

How much does it rain in Fossil in September?

In September, in Fossil, the rain falls for 3 days. Throughout September, 0.7" (18mm) of precipitation is accumulated.

When does it start snowing in Fossil?

September is the first month it typically snows. Throughout September, Fossil receives 0.1" (2.5mm) of snow.

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

In September, the average length of the day in Fossil is 12.5h.
Average temperature in September - Fossil, OR
  • Average high temperature in September: 76.4°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (41.8°F).

  • Average low temperature in September: 40.3°F

The month with the highest average low temperature is July (45.7°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).

Average rainfall in September - Fossil, OR
  • Average rainfall in September: 0.7"

Wettest months (with the highest rainfall) are November and December (1.7").
The driest month (with the lowest rainfall) is July (0.4").

Average rainfall days in September - Fossil, OR
  • Average rainfall days in September: 3 days

Months with the highest number of rainy days are January, March, November and December (8 days).
Months with the lowest number of rainy days are July and August (2 days).

Average snowfall in September - Fossil, OR
  • Average snowfall in September: 0.1"

The month with the highest snowfall is January (5.7").
Months with the lowest snowfall are June, July and August (0").

Average daylight in September - Fossil, OR
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.6h).
The month with shortest days is December (Average daylight: 8.8h).