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

September weather forecast and climate
Vernonia, OR

The first month of the autumn, September, is also an agreeable month in Vernonia, Oregon, with average temperature ranging between max 72.7°F (22.6°C) and min 42.3°F (5.7°C).

Temperature

In September, the average high-temperature is practically the same as in August - a pleasant 72.7°F (22.6°C). In September, the average low-temperature is 42.3°F (5.7°C).

Rainfall

In Vernonia, in September, during 8 rainfall days, 1.8" (46.5mm) of precipitation is typically accumulated. Throughout the year, there are 168 rainfall days, and 48.5" (1231mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

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

What is the temperature in September in Vernonia?

In September, the average high-temperature is 72.7°F (22.6°C), and the average low-temperature is 42.3°F (5.7°C).

How much does it rain in Vernonia in September?

In Vernonia, Oregon, in September, during 8 rainfall days, 1.8" (46.5mm) of precipitation is typically accumulated.

When it does not snow in Vernonia?

In Vernonia snow does not fall in April through October.

How many hours of daylight does Vernonia have in September?

In Vernonia, Oregon, the average length of the day in September is 12.5h.
Average temperature in September - Vernonia, OR
  • Average high temperature in September: 72.6°F

The warmest month (with the highest average high temperature) is August (76.7°F).
The month with the lowest average high temperature is December (44.1°F).

  • Average low temperature in September: 42.3°F

The month with the highest average low temperature is July (47°F).
The coldest month (with the lowest average low temperature) is January (30.1°F).

Average rainfall in September - Vernonia, OR
  • Average rainfall in September: 1.8"

The wettest month (with the highest rainfall) is December (8.2").
The driest month (with the lowest rainfall) is July (0.5").

Average rainfall days in September - Vernonia, OR
  • Average rainfall days in September: 8 days

Months with the highest number of rainy days are January, March, November and December (20 days).
The month with the lowest number of rainy days is July (4 days).

Average snowfall in September - Vernonia, OR
  • Average snowfall in September: 0"

The month with the highest snowfall is January (3.1").
Months with the lowest snowfall are April, May, June, July, August, September and October (0").

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

The month with the longest days is June (Average daylight: 15.7h).
The month with shortest days is December (Average daylight: 8.7h).