September weather forecastBuckley, WA
September
Weather in September
September, the first month of the autumn in Buckley, is still a comfortable month, with an average temperature varying between 67.1°F (19.5°C) and 46°F (7.8°C).Temperature
The beginning of September brings a minor change in the average high-temperature, shifting from a warm 74.1°F (23.4°C) in August to a refreshing 67.1°F (19.5°C). Throughout September, Buckley witnesses a consistent average low-temperature of 46°F (7.8°C).Humidity
The average relative humidity in September in Buckley is 75%.Rainfall
In Buckley, in September, during 12 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. Throughout the year, there are 189.1 rainfall days, and 41.93" (1065mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Buckley.Daylight
The average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 6:28 am and sunset at 7:47 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:48 pm PDT.
Sunshine
In September, the average sunshine is 9h.UV index
The average daily maximum UV index in September in Buckley is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 3 in September translates into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Buckley, 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
Buckley, 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
Buckley, 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
Buckley, 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
Buckley, 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
Buckley, 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
Buckley, 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
Buckley, 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
Buckley, WA
- Average daylight in September: 12h and 30min
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 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
Buckley, 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
Buckley, 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
Buckley, 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
Buckley, 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).





