September weather forecast
Lyle, WA

Weather in September

The first month of the autumn, September, is still a pleasant month in Lyle, Washington, with an average temperature fluctuating between 50.7°F (10.4°C) and 71.6°F (22°C).

Temperature

In Lyle, the average high-temperature in September drops from a warm 81.3°F (27.4°C) in August to a pleasant 71.6°F (22°C). In Lyle, the average low-temperature is 50.7°F (10.4°C).

Humidity

In September, the average relative humidity is 58%.

Rainfall

In Lyle, in September, during 6.9 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. Throughout the year, in Lyle, there are 133.5 rainfall days, and 16.93" (430mm) of precipitation is accumulated.

Snowfall

In Lyle, snow does not fall in April through October.

Daylight

The average length of the day in September in Lyle is 12h and 31min.
On the first day of September, sunrise is at 6:26 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:47 pm PDT.

Sunshine

In Lyle, Washington, the average sunshine in September is 10.7h.

UV index

In September, the average daily maximum UV index in Lyle is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the average humidity in September in Lyle?

In September, the average relative humidity in Lyle, Washington, is 58%.

How much does it rain in Lyle in September?

In Lyle, Washington, in September, it is raining for 6.9 days, with typically 0.59" (15mm) of accumulated precipitation.

When it does not snow in Lyle?

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

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

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

What time are sunrise and sunset in September in Lyle?

In September, on the first day of the month, sunrise is at 6:26 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:47 pm PDT.

How many hours of sunshine does Lyle have in September?

In September, the average sunshine duration is 10.7h.

What is the UV index reading in September in Lyle?

In Lyle, Washington, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.

Average temperature in September
Lyle, WA

Average temperature in September - Lyle, WA
  • Average high temperature in September: 71.6°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (37°F).

  • Average low temperature in September: 50.7°F

The month with the highest average low temperature is August (55.8°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).

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Average pressure in September
Lyle, WA

Average pressure in September - Lyle, WA
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).

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Average wind speed in September
Lyle, WA

Average wind speed in September - Lyle, WA
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest months (with the lowest average wind speed) are January and December (4.8mph).

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Average humidity in September
Lyle, WA

Average humidity in September - Lyle, WA
  • Average humidity in September: 58%

The months with the highest relative humidity are January and December (85%).
The months with the lowest relative humidity are July and August (51%).

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Average rainfall in September
Lyle, WA

Average rainfall in September - Lyle, WA
  • Average rainfall in September: 0.59"

The wettest month (with the highest rainfall) is January (2.99").
The driest month (with the least rainfall) is July (0.16").

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Average rainfall days in September
Lyle, WA

Average rainfall days in September - Lyle, WA
  • Average rainfall days in September: 6.9 days

The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (3.2 days).

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Average snowfall in September
Lyle, WA

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

The month with the highest snowfall is February (4.29").
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
Lyle, WA

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

The month with the highest number of snowfall days is December (4.4 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
Lyle, WA

Average daylight in September / Average sunshine in September - Lyle, WA
  • Average daylight in September: 12h and 31min

The month with the longest days is June (Average daylight: 15h and 39min).
The month with the shortest days is December (Average daylight: 8h and 45min).

  • Average sunshine in September: 10.7h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is January (Average sunshine: 4.8h).

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Average sunshine days in September
Lyle, WA

Average sunshine days in September - Lyle, WA
  • Average sunshine days in September: 21.6 days

The month with the most sunshine days is July (26.8 days).
The month with the least sunshine days is March (10.6 days).

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Average UV index in September
Lyle, WA

Average UV index in September - Lyle, WA
  • 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).

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Average cloud cover in September
Lyle, WA

Average cloud cover in September - Lyle, WA
  • Average cloud cover in September: 18

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 10).

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Average visibility in September
Lyle, WA

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

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

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