September weather forecast
Glendale, OR

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Glendale, Oregon, with an average temperature fluctuating between 45.3°F (7.4°C) and 76.8°F (24.9°C).

Temperature

In Glendale, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's warm 83.7°F (28.7°C) to a still moderately hot 76.8°F (24.9°C). During September, Glendale perceives a consistent contrast from the daytime highs, with an average low-temperature of 45.3°F (7.4°C).

Humidity

In Glendale, the average relative humidity in September is 69%.

Rainfall

In Glendale, Oregon, in September, during 4.5 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. In Glendale, during the entire year, the rain falls for 100 days and collects up to 13.27" (337mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Glendale, the average length of the day in September is 12h and 28min.
On the first day of September, sunrise is at 6:39 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:56 pm PDT.

Sunshine

In September, the average sunshine is 10.3h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.

Frequently asked questions

What is the temperature in September in Glendale?

The average high-temperature and low-temperature during September are 76.8°F (24.9°C) and 45.3°F (7.4°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in August is appraised at 87.8°F (31°C).

What is the average humidity in September?

In Glendale, the average relative humidity in September is 69%.

How many days does it rain in September in Glendale?

In September, the rain falls for 4.5 days. Throughout September, 0.35" (9mm) of precipitation is accumulated.

When it does not snow in Glendale?

May through October are months without snowfall.

How many hours of daylight does Glendale have in September?

In September, the average day length is 12h and 28min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:39 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:56 pm PDT.

How many hours of sunshine does Glendale have in September?

The average sunshine duration in September is 10.3h.

How high is the UV index in September?

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
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
Glendale, OR

Average temperature in September - Glendale, OR
  • Average high temperature in September: 76.8°F

The warmest month (with the highest average high temperature) is August (83.7°F).
The month with the lowest average high temperature is December (45°F).

  • Average low temperature in September: 45.3°F

The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is December (31.3°F).

Average pressure in September
Glendale, OR

Average pressure in September - Glendale, OR
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).

Average wind speed in September
Glendale, OR

Average wind speed in September - Glendale, OR
  • Average wind speed in September: 3.2mph

The windiest month (with the highest average wind speed) is January (4.1mph).
The calmest month (with the lowest average wind speed) is September (3.2mph).

Average humidity in September
Glendale, OR

Average humidity in September - Glendale, OR
  • Average humidity in September: 69%

The months with the highest relative humidity are January, February and December (85%).
The month with the lowest relative humidity is August (65%).

Average rainfall in September
Glendale, OR

Average rainfall in September - Glendale, OR
  • Average rainfall in September: 0.35"

The wettest months (with the highest rainfall) are January and December (2.2").
The driest month (with the least rainfall) is July (0.08").

Average rainfall days in September
Glendale, OR

Average rainfall days in September - Glendale, OR
  • Average rainfall days in September: 4.5 days

The month with the highest number of rainy days is March (13.1 days).
The month with the least rainy days is August (2.1 days).

Average snowfall in September
Glendale, OR

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

The month with the highest snowfall is February (5").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Glendale, OR

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

The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Glendale, OR

Average daylight in September / Average sunshine in September - Glendale, OR
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 10h and 2min

The months with the most sunshine are July and August (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).

Average sunshine days in September
Glendale, OR

Average sunshine days in September - Glendale, OR
  • Average sunshine days in September: 24.9 days

The month with the most sunshine days is August (27.1 days).
The month with the least sunshine days is March (13.8 days).

Average UV index in September
Glendale, OR

Average UV index in September - Glendale, OR
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Glendale, OR

Average cloud cover in September - Glendale, OR
  • Average cloud cover in September: 25

The month with the most cloud cover is March (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 18).

Average visibility in September
Glendale, OR

Average visibility in September - Glendale, OR
  • Average visibility in September: 5mi

The months with the highest visibility are June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, May, November and December (4mi).

Glendale, Oregon, USA

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