September weather forecast
Saint Cloud, WA

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Weather in September

September, the first month of the autumn in Saint Cloud, is still a refreshing month, with temperature in the range of an average high of 67.5°F (19.7°C) and an average low of 45.7°F (7.6°C).

Temperature

During the transition into September, Saint Cloud observes a decrease in the average high-temperature, falling from a moderately hot 76.5°F (24.7°C) in August to a refreshing 67.5°F (19.7°C). Saint Cloud anticipates a considerable cooling off from the daytime high to an average minimum temperature of 45.7°F (7.6°C) in September.

Humidity

In September, the average relative humidity is 72%.

Rainfall

In September, the rain falls for 8.4 days. Throughout September, 1.1" (28mm) of precipitation is accumulated. In Saint Cloud, during the entire year, the rain falls for 158.4 days and collects up to 30.31" (770mm) of precipitation.

Snowfall

April through October are months without snowfall in Saint Cloud, Washington.

Daylight

In September, the average length of the day in Saint Cloud is 12h and 31min.
On the first day of the month, sunrise is at 6:30 am and sunset at 7:45 pm. On the last day of September, in Saint Cloud, sunrise is at 7:06 am and sunset at 6:49 pm PDT.

Sunshine

The average sunshine in September in Saint Cloud is 8.7h.

UV index

In Saint Cloud, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

What is the temperature in September in Saint Cloud?

Saint Cloud in September has an average high-temperature of 67.5°F (19.7°C) and an average low-temperature of 45.7°F (7.6°C).

What is the average humidity in September in Saint Cloud?

The average relative humidity in September in Saint Cloud is 72%.

How much does it rain in Saint Cloud in September?

In September, the rain falls for 8.4 days. Throughout September, 1.1" (28mm) of precipitation is accumulated.

When it does not snow in Saint Cloud?

In Saint Cloud, Washington, snow does not fall in April through October.

How many hours of daylight does Saint Cloud have in September?

In September, the average day length in Saint Cloud is 12h and 31min.

When is the sunrise / sunset in September in Saint Cloud?

On the first day of September, sunrise is at 6:30 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:49 pm PDT.

How many hours of sunshine does Saint Cloud have in September?

In Saint Cloud, Washington, the average sunshine duration in September is 8.7h.

How high is the UV index in September in Saint Cloud?

The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents 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
Saint Cloud, WA

Average temperature in September - Saint Cloud, WA
  • Average high temperature in September: 67.5°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 (37.9°F).

  • Average low temperature in September: 45.7°F

The month with the highest average low temperature is August (48.7°F).
The coldest month (with the lowest average low temperature) is December (28.2°F).

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Average pressure in September
Saint Cloud, WA

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).

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Average wind speed in September
Saint Cloud, WA

Average wind speed in September - Saint Cloud, WA
  • Average wind speed in September: 4.5mph

The windiest month (with the highest average wind speed) is January (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in September
Saint Cloud, WA

Average humidity in September - Saint Cloud, WA
  • Average humidity in September: 72%

The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are July and August (67%).

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Average rainfall in September
Saint Cloud, WA

Average rainfall in September - Saint Cloud, WA
  • Average rainfall in September: 1.1"

The wettest month (with the highest rainfall) is January (5.35").
The driest month (with the least rainfall) is July (0.28").

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Average rainfall days in September
Saint Cloud, WA

Average rainfall days in September - Saint Cloud, WA
  • Average rainfall days in September: 8.4 days

The month with the highest number of rainy days is March (18.9 days).
The month with the least rainy days is July (4.4 days).

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Average snowfall in September
Saint Cloud, WA

Average snowfall in September - Saint Cloud, WA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (3.62").
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
Saint Cloud, WA

Average snowfall days in September - Saint Cloud, WA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.8 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
Saint Cloud, WA

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

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

  • Average sunshine in September: 8h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).

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Average sunshine days in September
Saint Cloud, WA

Average sunshine days in September - Saint Cloud, WA
  • Average sunshine days in September: 20.1 days

The month with the most sunshine days is July (24.5 days).
The month with the least sunshine days is February (9.4 days).

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Average UV index in September
Saint Cloud, WA

Average UV index in September - Saint Cloud, WA
  • Average UV index in September: 3

The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in September
Saint Cloud, WA

Average cloud cover in September - Saint Cloud, WA
  • Average cloud cover in September: 39

The month with the most cloud cover is February (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 26).

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Average visibility in September
Saint Cloud, WA

Average visibility in September - Saint Cloud, WA
  • Average visibility in September: 5mi

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

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Saint Cloud, Washington, USA

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