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
Wilkeson's September weather shows a modest shift in high-temperatures, falling from August's warm 74.1°F (23.4°C) to a comfortable 67.1°F (19.5°C). Throughout the month of September, Wilkeson observes an average nighttime temperature of 46°F (7.8°C).Humidity
In Wilkeson, the average relative humidity in September is 75%.Rainfall
In Wilkeson, during September, the rain falls for 12 days and regularly aggregates up to 1.69" (43mm) of precipitation. In Wilkeson, during the entire year, the rain falls for 189.1 days and collects up to 41.93" (1065mm) of precipitation.Snowfall
May through October are months without snowfall in Wilkeson.Daylight
In Wilkeson, the average length of the day in September is 12h and 32min.On the first day of September, sunrise is at 6:28 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:48 pm PDT.
Sunshine
In September, the average sunshine in Wilkeson is 9h.UV index
In September, the average daily maximum UV index in Wilkeson is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 3 in September leads to these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
What is the average September temperature in Wilkeson?
What is the average humidity in September in Wilkeson?
How many days does it rain in September in Wilkeson?
When it does not snow in Wilkeson?
How many hours of daylight does Wilkeson have in September?
When are sunrise and sunset in September in Wilkeson?
How long on average sun shines in September in Wilkeson?
How high is the UV index in September in Wilkeson?
Average temperature in September
Wilkeson, WA
- Average high temperature in September: 67.1°F
The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is December (39.9°F).
- Average low temperature in September: 46°F
The month with the highest average low temperature is August (49.3°F).
The coldest month (with the lowest average low temperature) is December (29.8°F).
Average pressure in September
Wilkeson, WA
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).
Average wind speed in September
Wilkeson, WA
- Average wind speed in September: 3.9mph
The windiest month (with the highest average wind speed) is January (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in September
Wilkeson, WA
- Average humidity in September: 75%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is July (70%).
Average rainfall in September
Wilkeson, WA
- Average rainfall in September: 1.69"
The wettest months (with the highest rainfall) are January and December (6.1").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in September
Wilkeson, WA
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is March (21.2 days).
The month with the least rainy days is August (7.6 days).
Average snowfall in September
Wilkeson, WA
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.2").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Wilkeson, WA
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average daylight in September /
Average sunshine in September
Wilkeson, 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 36min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).
Average sunshine days in September
Wilkeson, WA
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is July (21.2 days).
The month with the least sunshine days is March (7.8 days).
Average UV index in September
Wilkeson, WA
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Wilkeson, WA
- Average cloud cover in September: 38
The month with the most cloud cover is March (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Wilkeson, WA
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, November and December (4mi).
Wilkeson, Washington, USA
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