September weather forecast
Eltopia, WA

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Weather in September

September, the first month of the autumn in Eltopia, is also a moderately hot month, with an average temperature ranging between max 77.9°F (25.5°C) and min 57.2°F (14°C).

Temperature

The shift from August to September corresponds with a decrease in the average high-temperature, down to a warm 77.9°F (25.5°C) from a hot 89.1°F (31.7°C). During September, Eltopia's temperature averages to a moderate 57.2°F (14°C) at night.

Humidity

In September, the average relative humidity is 43%.

Rainfall

In September, the rain falls for 4.7 days. Throughout September, 0.28" (7mm) of precipitation is accumulated. In Eltopia, during the entire year, the rain falls for 101.7 days and collects up to 7.36" (187mm) of precipitation.

Snowfall

April through October are months without snowfall in Eltopia.

Daylight

In September, the average length of the day is 12h and 32min.
On the first day of the month, sunrise is at 6:17 am and sunset at 7:34 pm. On the last day of September, in Eltopia, sunrise is at 6:54 am and sunset at 6:37 pm PDT.

Sunshine

In Eltopia, the average sunshine in September is 10.7h.

UV index

In Eltopia, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 4 in September translates into this advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
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Frequently asked questions

What is the temperature in September in Eltopia?

The high-temperature, in September, in Eltopia, is 77.9°F (25.5°C), while the low-temperature averages to 57.2°F (14°C).

What is the average humidity in September in Eltopia?

In Eltopia, the average relative humidity in September is 43%.

How much does it rain in Eltopia in September?

In Eltopia, in September, during 4.7 rainfall days, 0.28" (7mm) of precipitation is typically accumulated.

When it does not snow in Eltopia?

April through October are months without snowfall in Eltopia, Washington.

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

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

When is the sunrise / sunset in September in Eltopia?

In September, on the first day of the month, sunrise is at 6:17 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:37 pm PDT.

How many hours of sunshine does Eltopia have in September?

The average sunshine duration in September is 10.7h.

What is the UV index intensity in September in Eltopia?

In Eltopia, Washington, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Eltopia, WA

Average temperature in September - Eltopia, WA
  • Average high temperature in September: 77.9°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is December (37.8°F).

  • Average low temperature in September: 57.2°F

The month with the highest average low temperature is August (64°F).
The coldest month (with the lowest average low temperature) is December (27.7°F).

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Average pressure in September
Eltopia, WA

Average pressure in September - Eltopia, WA
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed in September
Eltopia, WA

Average wind speed in September - Eltopia, WA
  • Average wind speed in September: 6.6mph

The windiest month (with the highest average wind speed) is April (8.4mph).
The calmest month (with the lowest average wind speed) is December (5.8mph).

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Average humidity in September
Eltopia, WA

Average humidity in September - Eltopia, WA
  • Average humidity in September: 43%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is July (35%).

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Average rainfall in September
Eltopia, WA

Average rainfall in September - Eltopia, WA
  • Average rainfall in September: 0.28"

The wettest month (with the highest rainfall) is January (0.94").
The driest month (with the least rainfall) is July (0.2").

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Average rainfall days in September
Eltopia, WA

Average rainfall days in September - Eltopia, WA
  • Average rainfall days in September: 4.7 days

The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is August (3.5 days).

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Average snowfall in September
Eltopia, WA

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

The month with the highest snowfall is February (2.09").
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
Eltopia, WA

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

The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Eltopia, 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 42min).

  • Average sunshine in September: 10h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

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Average sunshine days in September
Eltopia, WA

Average sunshine days in September - Eltopia, WA
  • Average sunshine days in September: 23.5 days

The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is February (14.7 days).

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Average UV index in September
Eltopia, WA

Average UV index in September - Eltopia, WA
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Eltopia, WA

Average cloud cover in September - Eltopia, WA
  • Average cloud cover in September: 16

The month with the most cloud cover is January (Cloud cover 44).
The months with the least cloud cover are July and August (Cloud cover 10).

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Average visibility in September
Eltopia, WA

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

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

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Eltopia, Washington, USA

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