September weather forecast
Carbonado, WA

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Weather in September

September, the first month of the autumn in Carbonado, is also an enjoyable month, with an average temperature ranging between min 46°F (7.8°C) and max 67.1°F (19.5°C).

Temperature

Start of September brings a slight shift in the average high-temperature, dipping a bit from August's warm 74.1°F (23.4°C) to a comfortable 67.1°F (19.5°C). The temperature in Carbonado lowers to an average of 46°F (7.8°C) during September nights.

Humidity

The average relative humidity in September in Carbonado is 75%.

Rainfall

In Carbonado, during September, the rain falls for 12 days and regularly aggregates up to 1.69" (43mm) of precipitation. Throughout the year, there are 189.1 rainfall days, and 41.93" (1065mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Carbonado.

Daylight

In September, the average length of the day is 12h and 32min.
On the first day of the month, sunrise is at 6:28 am and sunset at 7:47 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:48 pm PDT.

Sunshine

The average sunshine in September in Carbonado, Washington, is 9h.

UV index

In Carbonado, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 3 in September translates into this advice:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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 Carbonado in September?

The average high-temperature and low-temperature in Carbonado during September are 67.1°F (19.5°C) and 46°F (7.8°C) respectively.

What is the average humidity in September in Carbonado?

The average relative humidity in September in Carbonado is 75%.

How many days does it rain in September in Carbonado?

In September, the rain falls for 12 days. Throughout September, 1.69" (43mm) of precipitation is accumulated.

When it does not snow in Carbonado?

May through October are months without snowfall in Carbonado, Washington.

How many hours of daylight does Carbonado have in September?

In Carbonado, Washington, the average day length in September is 12h and 32min.

When are sunrise and sunset in September in Carbonado?

In September, on the first day of the month, sunrise is at 6:28 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:48 pm PDT.

How many hours of sunshine does Carbonado have in September?

In September, the average sunshine duration in Carbonado is 9h.

What is the UV index reading in September in Carbonado?

The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from 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
Carbonado, WA

Average temperature in September - Carbonado, WA
  • Average high temperature in September: 67.1°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 (39.9°F).

  • Average low temperature in September: 46°F

The month with the highest average low temperature is August (49.3°F).
The coldest month (with the lowest average low temperature) is December (29.8°F).

Average pressure in September
Carbonado, WA

Average pressure in September - Carbonado, WA
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).

Average wind speed in September
Carbonado, WA

Average wind speed in September - Carbonado, WA
  • Average wind speed in September: 3.9mph

The windiest month (with the highest average wind speed) is January (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in September
Carbonado, WA

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

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is July (70%).

Average rainfall in September
Carbonado, WA

Average rainfall in September - Carbonado, WA
  • Average rainfall in September: 1.69"

The wettest months (with the highest rainfall) are January and December (6.1").
The driest month (with the least rainfall) is July (0.63").

Average rainfall days in September
Carbonado, WA

Average rainfall days in September - Carbonado, WA
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is March (21.2 days).
The month with the least rainy days is August (7.6 days).

Average snowfall in September
Carbonado, WA

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

The month with the highest snowfall is February (5.2").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Carbonado, WA

Average snowfall days in September - Carbonado, WA
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are June, July, August and October (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in September: 9h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).

Average sunshine days in September
Carbonado, WA

Average sunshine days in September - Carbonado, WA
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is July (21.2 days).
The month with the least sunshine days is March (7.8 days).

Average UV index in September
Carbonado, WA

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

The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is November (UV index 1).

Average cloud cover in September
Carbonado, WA

Average cloud cover in September - Carbonado, WA
  • Average cloud cover in September: 38

The month with the most cloud cover is March (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in September
Carbonado, WA

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

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

Carbonado, Washington, USA

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