September weather forecast
Puyallup, WA

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Weather in September

September heralds the taste of autumn in the weather of Puyallup, Washington. The temperatures start cooling down from their peak in August, and the daylight hours begin to shrink. However, the extension of sunny conditions from summer means that September still witnesses quite a few clear and warm days. Notably, September begins the late part of the year and harbors an average of 9.3 sunshine hours, marking a gradual decline. As September winds down towards its end, October's crisp fall weather begins becoming more prominent.

Temperature

The arrival of September in Puyallup signals a subtle shift in temperature, down from a moderately hot 76.5°F (24.7°C) in August to an agreeable 69.6°F (20.9°C). Throughout September, Puyallup registers a consistent average low-temperature of 48.6°F (9.2°C).

Humidity

In September, the average relative humidity is 75%.

Rainfall

In September, in Puyallup, the rain falls for 12.1 days. Throughout September, 1.61" (41mm) of precipitation is accumulated. Throughout the year, in Puyallup, Washington, there are 183.4 rainfall days, and 32.48" (825mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Puyallup.

Daylight

In September, the average length of the day in Puyallup is 12h and 32min.
On the first day of the month, sunrise is at 6:29 am and sunset at 7:48 pm. On the last day of September, in Puyallup, sunrise is at 7:07 am and sunset at 6:49 pm PDT.

Sunshine

In Puyallup, the average sunshine in September is 9.3h.

UV index

The average daily maximum UV index in September in Puyallup, Washington, is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 3 in September leads to these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

What is the usual temperature for Puyallup in September?

In Puyallup, 69.6°F (20.9°C) is the average high-temperature and 48.6°F (9.2°C) is the average low-temperature during September.

What is the average humidity in September in Puyallup?

In September, the average relative humidity in Puyallup, Washington, is 75%.

How many days does it rain in September in Puyallup?

In Puyallup, during September, the rain falls for 12.1 days and regularly aggregates up to 1.61" (41mm) of precipitation.

When it does not snow in Puyallup?

April through October are months without snowfall.

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

The average day length in September in Puyallup is 12h and 32min.

When is the sunrise / sunset in September in Puyallup?

In September, on the first day of the month, sunrise is at 6:29 am and sunset at 7:48 pm. On the last day of the month, in Puyallup, sunrise is at 7:07 am and sunset at 6:49 pm PDT.

How many hours of sunshine does Puyallup have in September?

In September, the average sunshine duration in Puyallup is 9.3h.

What is the UV index reading in September in Puyallup?

In September, the average daily maximum UV index in Puyallup is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Puyallup, WA

Average temperature in September - Puyallup, WA
  • Average high temperature in September: 69.6°F

The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (42.8°F).

  • Average low temperature in September: 48.6°F

The month with the highest average low temperature is August (51.6°F).
The coldest month (with the lowest average low temperature) is December (32.7°F).

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Average pressure in September
Puyallup, WA

Average pressure in September - Puyallup, WA
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

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Average wind speed in September
Puyallup, WA

Average wind speed in September - Puyallup, WA
  • Average wind speed in September: 3.7mph

The windiest month (with the highest average wind speed) is March (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).

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Average humidity in September
Puyallup, WA

Average humidity in September - Puyallup, WA
  • Average humidity in September: 75%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in September
Puyallup, WA

Average rainfall in September - Puyallup, WA
  • Average rainfall in September: 1.61"

The wettest month (with the highest rainfall) is December (4.92").
The driest month (with the least rainfall) is July (0.43").

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Average rainfall days in September
Puyallup, WA

Average rainfall days in September - Puyallup, WA
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is March (21 days).
The month with the least rainy days is August (6.2 days).

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Average snowfall in September
Puyallup, WA

Average snowfall in September - Puyallup, WA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.42").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Puyallup, WA

Average snowfall days in September - Puyallup, WA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Puyallup, WA
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).

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Average sunshine days in September
Puyallup, WA

Average sunshine days in September - Puyallup, WA
  • Average sunshine days in September: 16.7 days

The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is February (8.2 days).

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Average UV index in September
Puyallup, WA

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

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

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Average cloud cover in September
Puyallup, WA

Average cloud cover in September - Puyallup, WA
  • Average cloud cover in September: 35

The months with the most cloud cover are January and December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in September
Puyallup, WA

Average visibility in September - Puyallup, WA
  • Average visibility in September: 5mi

The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (5mi).

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Puyallup, Washington, USA

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