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
With the onset of September, Wilson Creek experiences a modest temperature adjustment, with the average high-temperature receding from a hot 86.9°F (30.5°C) in August to a moderately hot 75.9°F (24.4°C). During September, the average low-temperature is a fresh 55.2°F (12.9°C).Humidity
In September, the average relative humidity is 44%.Rainfall
In Wilson Creek, in September, during 5.4 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. Throughout the year, there are 103.1 rainfall days, and 7.8" (198mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, September, November and December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Wilson Creek, during the entire year, snow falls for 20.9 days and aggregates up to 8.07" (205mm) of snow.Daylight
In Wilson Creek, the average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 6:16 am and sunset at 7:35 pm. On the last day of September, sunrise is at 6:55 am and sunset at 6:37 pm PDT.
Sunshine
The average sunshine in September is 10.8h.UV index
In Wilson Creek, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Guard yourself - Precautionary measures against sun damage are advocated. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September in Wilson Creek?
How many days does it rain in September?
When does it start to snow?
How many hours of daylight does Wilson Creek have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Wilson Creek, WA
- Average high temperature in September: 75.9°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is December (34°F).
- Average low temperature in September: 55.2°F
The month with the highest average low temperature is August (62.2°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).
Average pressure in September
Wilson Creek, WA
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in September
Wilson Creek, WA
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest months (with the lowest average wind speed) are January and December (5.5mph).
Average humidity in September
Wilson Creek, WA
- Average humidity in September: 44%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are July and August (36%).
Average rainfall in September
Wilson Creek, WA
- Average rainfall in September: 0.31"
The wettest month (with the highest rainfall) is January (1.02").
The driest month (with the least rainfall) is August (0.2").
Average rainfall days in September
Wilson Creek, WA
- Average rainfall days in September: 5.4 days
The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is July (3.8 days).
Average snowfall in September
Wilson Creek, WA
- Average snowfall in September: 0.04"
The month with the highest snowfall is December (2.6").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days in September
Wilson Creek, WA
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (6.8 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in September /
Average sunshine in September
Wilson Creek, 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 months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Wilson Creek, WA
- Average sunshine days in September: 23.4 days
The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is March (14.2 days).
Average UV index in September
Wilson Creek, 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).
Average cloud cover in September
Wilson Creek, WA
- Average cloud cover in September: 16
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in September
Wilson Creek, WA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Wilson Creek, Washington, USA
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