Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
A shift in East Wenatchee's weather is observed as August turns into September, with the average high temperature reducing from a moderately hot 82.6°F (28.1°C) to a pleasant 71.2°F (21.8°C). In September, East Wenatchee experiences a significant drop from daily zeniths to an average nighttime temperature of 47.5°F (8.6°C).Humidity
The average relative humidity in September is 55%.Rainfall
In September, the rain falls for 6 days. Throughout September, 0.67" (17mm) of precipitation is accumulated. In East Wenatchee, during the entire year, the rain falls for 111.1 days and collects up to 11.3" (287mm) of precipitation.Snowfall
In East Wenatchee, snow does not fall in May through October.Daylight
In East Wenatchee, the average length of the day in September is 12h and 32min.On the first day of September, sunrise is at 6:21 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:41 pm PDT.
Sunshine
In East Wenatchee, the average sunshine in September is 10.8h.UV index
In East Wenatchee, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 3 during September translates into the following directions:
Undertake precautions - Guarding against sun damage is counselled. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
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).
Average pressure in September
East Wenatchee, WA
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
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).
Average humidity in September
East Wenatchee, WA
- Average humidity in September: 55%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are July and August (47%).
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").
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).
Average snowfall in September
East Wenatchee, WA
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.76").
The months with the least snowfall are May, June, July, August, September and October (0").
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).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
East Wenatchee, WA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 10h and 5min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
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).
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).
The months with the lowest UV index are January, February, November and December (UV index 2).
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).
Average visibility in September
East Wenatchee, WA
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
East Wenatchee, Washington, USA
Weather forecast for your location
2. Allow the app to use your location