September weather forecast and climate
East Wenatchee, WA

Weather in September

September, the first month of the autumn, in East Wenatchee, is also an agreeable month, with average temperature varying between 47.5°F (8.6°C) and 71.2°F (21.8°C).

Temperature

In September, the average high-temperature drops, from a moderately hot 82.6°F (28.1°C) in August, to an agreeable 71.2°F (21.8°C). In East Wenatchee, the average low-temperature is 47.5°F (8.6°C).

Humidity

In East Wenatchee, the average relative humidity in September is 55%.

Rainfall

In East Wenatchee, during September, the rain falls for 6 days and regularly aggregates up to 0.67" (17mm) of precipitation. Throughout the year, in East Wenatchee, there are 111.1 rainfall days, and 11.3" (287mm) of precipitation is accumulated.

Snowfall

In East Wenatchee snow does not fall in May through October.

Daylight

In September, the average length of the day is 12.5h.

Sunshine

The average sunshine in East Wenatchee is 10.8h.

UV index

In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
[Resources]

FAQ

What is the average humidity in September in East Wenatchee?

The average relative humidity in September in East Wenatchee, Washington, is 55%.

How many days does it rain in September in East Wenatchee?

In East Wenatchee, in September, during 6 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

When it does not snow in East Wenatchee?

In East Wenatchee, Washington, snow does not fall in May through October.

What is the average length of the day in September in East Wenatchee?

The average length of the day in September in East Wenatchee, Washington, is 12.5h.

How many hours of sunshine does East Wenatchee have in September?

In East Wenatchee, the average sunshine in September is 10.8h.

What is the UV index reading in September in East Wenatchee?

In East Wenatchee, Washington, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in September
East Wenatchee, WA

Average temperature in September - East Wenatchee, WA
  • Average high temperature in September: 71.2°F

The warmest months (with the highest average high temperature) are July and August (82.6°F).
The month with the lowest average high temperature is December (32.4°F).

  • Average low temperature in September: 47.5°F

The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).

[Resources]

Average pressure in September
East Wenatchee, WA

Average pressure in September - East Wenatchee, WA
  • Average pressure in September: 29.97"

The month with the highest atmospheric pressure is January (30.15").
The month with the lowest atmospheric pressure is August (29.93").

[Resources]

Average wind speed in September
East Wenatchee, WA

Average wind speed in September - East Wenatchee, WA
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).

[Resources]

Average humidity in September
East Wenatchee, WA

Average humidity in September - East Wenatchee, WA
  • Average humidity in September: 55%

The month with the highest relative humidity is January (89%).
Months with the lowest relative humidity are July and August (47%).

[Resources]

Average rainfall in September
East Wenatchee, WA

Average rainfall in September - East Wenatchee, WA
  • Average rainfall in September: 0.67"

The wettest month (with the highest rainfall) is January (1.77").
The driest months (with the least rainfall) are July and August (0.24").

[Resources]

Average rainfall days in September
East Wenatchee, WA

Average rainfall days in September - East Wenatchee, WA
  • Average rainfall days in September: 6 days

The month with the highest number of rainy days is March (14 days).
The month with the least rainy days is August (3.4 days).

[Resources]

Average snowfall in September
East Wenatchee, WA

Average snowfall in September - East Wenatchee, WA
  • Average snowfall in September: 0"

The month with the highest snowfall is December (4.76").
Months with the least snowfall are May, June, July, August, September and October (0").

[Resources]

Average snowfall days in September
East Wenatchee, WA

Average snowfall days in September - East Wenatchee, WA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (6.9 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

[Resources]

Average daylight in September /
Average sunshine in September
East Wenatchee, WA

Average daylight in September / Average sunshine in September - East Wenatchee, WA
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.9h).
The month with the shortest days is December (Average daylight: 8.5h).

  • Average sunshine in September: 10.8h

The month with the most sunshine is August (Average sunshine: 12.1h).
The month with the least sunshine is January (Average sunshine: 4.6h).

[Resources]

Average sunshine days in September
East Wenatchee, WA

Average sunshine days in September - East Wenatchee, WA
  • Average sunshine days in September: 22.2 days

The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is February (13.3 days).

[Resources]

Average UV index in September
East Wenatchee, WA

Average UV index in September - East Wenatchee, WA
  • Average UV index in September: 3

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

[Resources]

Average cloud cover in September
East Wenatchee, WA

Average cloud cover in September - East Wenatchee, WA
  • Average cloud cover in September: 18

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 11).

[Resources]

Average visibility in September
East Wenatchee, WA

Average visibility in September - East Wenatchee, WA
  • Average visibility in September: 6mi

Months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
Months with the lowest visibility are January, February and December (4mi).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location