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

September weather forecast and climate
Salem, OR

An evening shot of the leafy town of Salem in Oregon, with a clear dusk sky
An evening shot of the leafy town of Salem in Oregon, with a clear dusk sky
September, the first month of the autumn, in Salem, is also a moderately hot month, with average temperature ranging between min 48.4°F (9.1°C) and max 76.8°F (24.9°C).

Temperature

In Salem, Oregon, the average high-temperature in September marginally drops, from 82.4°F (28°C) in August, to a still warm 76.8°F (24.9°C). In Salem, the average low-temperature is 48.4°F (9.1°C).

Rainfall

In Salem, during September, the rain falls for 6.1 days and regularly aggregates up to 1.3" (32.5mm) of precipitation. In Salem, during the entire year, the rain falls for 144.3 days and collects up to 39.6" (1007.1mm) of precipitation.

Snowfall

March through October are months without snowfall.

Daylight

In September, the average length of the day is 12.5h.

Sunshine

In Salem, the average sunshine in September is 8h.

UV index

In September, the average daily maximum UV index in Salem is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in September in Salem?

The average high-temperature, in September, in Salem, Oregon, is 76.8°F (24.9°C), while the average low-temperature is 48.4°F (9.1°C).

How much does it rain in Salem in September?

In September, in Salem, Oregon, the rain falls for 6.1 days. Throughout September, 1.3" (32.5mm) of precipitation is accumulated.

When it does not snow in Salem?

March through October are months without snowfall in Salem, Oregon.

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

In Salem, Oregon, the average length of the day in September is 12.5h.

How long on average sun shines in September in Salem?

The average sunshine in September in Salem is 8h.

What is the UV index intensity in September in Salem?

In Salem, Oregon, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV radiation.
Average temperature in September - Salem, OR
  • Average high temperature in September: 76.8°F

The warmest month (with the highest average high temperature) is August (82.4°F).
The month with the lowest average high temperature is December (46.2°F).

  • Average low temperature in September: 48.4°F

The month with the highest average low temperature is July (53.1°F).
The coldest month (with the lowest average low temperature) is December (34°F).

Average rainfall in September - Salem, OR
  • Average rainfall in September: 1.3"

The wettest month (with the highest rainfall) is December (6.9").
The driest month (with the lowest rainfall) is August (0.4").

Average rainfall days in September - Salem, OR
  • Average rainfall days in September: 6.1 days

The month with the highest number of rainy days is December (18.2 days).
The month with the lowest number of rainy days is July (2.9 days).

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

The month with the highest snowfall is February (1.7").
Months with the lowest snowfall are March, April, May, June, July, August, September and October (0").

Average snowfall days in September - Salem, OR
  • Average snowfall days in September: 0 days

Months with the highest number of snowfall days are February and December (0.7 days).
Months with the lowest number of snowfall days are March, April, May, June, July, August, September and October (0 days).

Average daylight in September / Average sunshine in September - Salem, 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).

  • Average sunshine in September: 8h

The month with most sunshine is July (Average sunshine: 11h).
The month with least sunshine is December (Average sunshine: 2h).

Average UV index in September - Salem, OR
  • Average UV index in September: 5

The month with the highest UV index is July (UV index 8).
Months with the lowest UV index are January and December (UV index 1).