September weather forecast
Kenmore, WA

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Weather in September

September, the first month of the autumn in Kenmore, is also an agreeable month, with temperature in the range of an average high of 68.7°F (20.4°C) and an average low of 50°F (10°C).

Temperature

September ushers in a minute temperature change, with average high-temperatures reducing from August's warm 74.8°F (23.8°C) to an agreeable 68.7°F (20.4°C). In Kenmore, in September, the average low-temperature is a cool 50°F (10°C).

Humidity

In Kenmore, the average relative humidity in September is 76%.

Rainfall

In Kenmore, during September, the rain falls for 12.5 days and regularly aggregates up to 1.46" (37mm) of precipitation. In Kenmore, during the entire year, the rain falls for 166.9 days and collects up to 21.93" (557mm) of precipitation.

Snowfall

May through October are months without snowfall in Kenmore.

Daylight

In September, the average length of the day is 12h and 33min.
On the first day of the month, sunrise is at 6:28 am and sunset at 7:48 pm. On the last day of September, in Kenmore, sunrise is at 7:07 am and sunset at 6:49 pm PDT.

Sunshine

In Kenmore, the average sunshine in September is 9.4h.

UV index

The average daily maximum UV index in September in Kenmore is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 3 during September translates into the following guidance:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Kenmore in September?

The average high-temperature and low-temperature during September are 68.7°F (20.4°C) and 50°F (10°C) respectively.

What is the average humidity in September in Kenmore?

The average relative humidity in September in Kenmore, Washington, is 76%.

How much does it rain in Kenmore in September?

In September, in Kenmore, Washington, the rain falls for 12.5 days. Throughout September, 1.46" (37mm) of precipitation is accumulated.

When it does not snow in Kenmore?

May through October are months without snowfall.

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

In September, the average day length in Kenmore is 12h and 33min.

When is the sunrise / sunset in September in Kenmore?

On the first day of September, sunrise is at 6:28 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:49 pm PDT.

How many hours of sunshine does Kenmore have in September?

In Kenmore, the average sunshine duration in September is 9.4h.

How high is the UV index in September in Kenmore?

The average daily maximum UV index in September in Kenmore, Washington, is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average max. wind speed
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
Kenmore, WA

Average temperature in September - Kenmore, WA
  • Average high temperature in September: 68.7°F

The warmest month (with the highest average high temperature) is August (74.8°F).
The month with the lowest average high temperature is December (42.6°F).

  • Average low temperature in September: 50°F

The month with the highest average low temperature is August (53.1°F).
The coldest months (with the lowest average low temperature) are February and December (35.1°F).

Average pressure in September
Kenmore, WA

Average pressure in September - Kenmore, 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).

Average wind speed in September
Kenmore, WA

Average wind speed in September - Kenmore, WA
  • Average wind speed in September: 3.8mph

The windiest months (with the highest average wind speed) are January and March (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).

Average humidity in September
Kenmore, WA

Average humidity in September - Kenmore, WA
  • Average humidity in September: 76%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (71%).

Average rainfall in September
Kenmore, WA

Average rainfall in September - Kenmore, WA
  • Average rainfall in September: 1.46"

The wettest month (with the highest rainfall) is January (2.87").
The driest month (with the least rainfall) is July (0.43").

Average rainfall days in September
Kenmore, WA

Average rainfall days in September - Kenmore, WA
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is November (17.9 days).
The month with the least rainy days is August (6.9 days).

Average snowfall in September
Kenmore, WA

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

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

Average snowfall days in September
Kenmore, WA

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

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Kenmore, 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 30min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 4h and 24min).

Average sunshine days in September
Kenmore, WA

Average sunshine days in September - Kenmore, WA
  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is August (21.9 days).
The month with the least sunshine days is April (10.5 days).

Average UV index in September
Kenmore, WA

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

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

Average cloud cover in September
Kenmore, WA

Average cloud cover in September - Kenmore, WA
  • Average cloud cover in September: 32

The months with the most cloud cover are January and December (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 24).

Average visibility in September
Kenmore, WA

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

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

Kenmore, Washington, USA

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