September weather forecast and climate
Packwood, WA

Weather in September

The first month of the autumn, September, is also an enjoyable month in Packwood, Washington, with temperature in the range of an average low of 40.5°F (4.7°C) and an average high of 63.9°F (17.7°C).

Temperature

In Packwood, the average high-temperature drops, from a moderately hot 74.1°F (23.4°C) in August, to an enjoyable 63.9°F (17.7°C). The average low-temperature, in September, is 40.5°F (4.7°C).

Humidity

In September, the average relative humidity in Packwood is 70%.

Rainfall

In Packwood, it is raining for 9.5 days, with typically 1.26" (32mm) of accumulated precipitation. In Packwood, during the entire year, the rain falls for 96.1 days and collects up to 36.54" (928mm) of precipitation.

Snowfall

Months with snowfall are January through July, September through December. September is the first month it typically snows. Throughout September, in the average 2 snowfall days, it receives 1.14" (29mm) of snow. In Packwood, Washington, during the entire year, snow falls for 147 days, and aggregates up to 210.2" (5339mm) of snow.

Daylight

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

Sunshine

In Packwood, the average sunshine is 9.7h.

UV index

The average daily maximum UV index in Packwood is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 3 in September interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in September in Packwood?

In September, the average relative humidity in Packwood is 70%.

How many days does it rain in September in Packwood?

In Packwood, in September, it is raining for 9.5 days, with typically 1.26" (32mm) of accumulated precipitation.

When does it start to snow in Packwood?

September is the first month it typically snows in Packwood, Washington. Throughout September, in the average 2 snowfall days, it receives 1.14" (29mm) of snow.

How many hours of daylight does Packwood have in September?

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

How many hours of sunshine does Packwood have in September?

In September, the average sunshine in Packwood, Washington, is 9.7h.

How high is the UV index in September in Packwood?

The average daily maximum UV index in September in Packwood is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to the UV radiation.

Average temperature in September
Packwood, WA

Average temperature in September - Packwood, WA
  • Average high temperature in September: 63.9°F

The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is December (30.4°F).

  • Average low temperature in September: 40.5°F

The month with the highest average low temperature is August (45.1°F).
The coldest month (with the lowest average low temperature) is December (18.5°F).

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Average pressure in September
Packwood, WA

Average pressure in September - Packwood, WA
  • Average pressure in September: 29.99"

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is August (29.97").

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Average wind speed in September
Packwood, WA

Average wind speed in September - Packwood, WA
  • Average wind speed in September: 4.3mph

The windiest month (with the highest average wind speed) is January (5.3mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).

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Average humidity in September
Packwood, WA

Average humidity in September - Packwood, WA
  • Average humidity in September: 70%

The month with the highest relative humidity is February (93%).
Months with the lowest relative humidity are July and August (63%).

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Average rainfall in September
Packwood, WA

Average rainfall in September - Packwood, WA
  • Average rainfall in September: 1.26"

The wettest month (with the highest rainfall) is January (6.14").
The driest month (with the least rainfall) is July (0.39").

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Average rainfall days in September
Packwood, WA

Average rainfall days in September - Packwood, WA
  • Average rainfall days in September: 9.5 days

The month with the highest number of rainy days is October (12.6 days).
The month with the least rainy days is February (4.6 days).

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Average snowfall in September
Packwood, WA

Average snowfall in September - Packwood, WA
  • Average snowfall in September: 1.14"

The month with the highest snowfall is January (41.73").
The month with the least snowfall is August (0").

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Average snowfall days in September
Packwood, WA

Average snowfall days in September - Packwood, WA
  • Average snowfall days in September: 2 days

The month with the highest number of snowfall days is March (22.2 days).
The month with the least snowfall days is August (0.3 days).

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Average daylight in September /
Average sunshine in September
Packwood, WA

Average daylight in September / Average sunshine in September - Packwood, WA
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.8h).
The month with the shortest days is December (Average daylight: 8.6h).

  • Average sunshine in September: 9.7h

The month with the most sunshine is August (Average sunshine: 11.6h).
Months with the least sunshine are January and February (Average sunshine: 3.3).

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Average sunshine days in September
Packwood, WA

Average sunshine days in September - Packwood, WA
  • Average sunshine days in September: 18.5 days

The month with the most sunshine days is July (23.6 days).
The month with the least sunshine days is February (7.8 days).

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Average UV index in September
Packwood, WA

Average UV index in September - Packwood, WA
  • Average UV index in September: 3

The month with the highest UV index is July (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in September
Packwood, WA

Average cloud cover in September - Packwood, WA
  • Average cloud cover in September: 34

The month with the most cloud cover is February (Cloud cover 68).
Months with the least cloud cover are July and August (Cloud cover 21).

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Average visibility in September
Packwood, WA

Average visibility in September - Packwood, WA
  • Average visibility in September: 6mi

Months with the highest visibility are June, July, August and September (6mi).
Months with the lowest visibility are January, February and December (3mi).

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