September weather forecastLebam, WA
September
Weather in September
September, the first month of the autumn in Lebam, is still a refreshing month, with an average temperature ranging between max 66.6°F (19.2°C) and min 49.6°F (9.8°C).Temperature
Lebam's shift from August to September is accompanied by an average high-temperature of a comfortable 66.6°F (19.2°C), a slight deviation from 70.7°F (21.5°C). The average low-temperature, in September, in Lebam, is a chilly 49.6°F (9.8°C).Humidity
In Lebam, the average relative humidity in September is 83%.Rainfall
In September, the rain falls for 7.2 days. Throughout September, 0.39" (10mm) of precipitation is accumulated. In Lebam, during the entire year, the rain falls for 126 days and collects up to 8.5" (216mm) of precipitation.Snowfall
April through October and December are months without snowfall.Daylight
In September, the average length of the day is 12h and 32min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:52 pm. On the last day of September, in Lebam, sunrise is at 7:12 am and sunset at 6:55 pm PDT.
Sunshine
In Lebam, Washington, the average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September in Lebam is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 4 during September leads to these advisories:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lebam, WA
- Average high temperature in September: 66.6°F
The warmest month (with the highest average high temperature) is August (70.7°F).
The month with the lowest average high temperature is December (44.1°F).
- Average low temperature in September: 49.6°F
The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is December (36.3°F).
Average pressure in September
Lebam, WA
- Average pressure in September: 30.02"Hg
The months with the highest atmospheric pressure are January, April and July (30.07"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in September
Lebam, WA
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is January (7mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in September
Lebam, WA
- Average humidity in September: 83%
The months with the highest relative humidity are November and December (88%).
The months with the lowest relative humidity are June and July (80%).
Average rainfall in September
Lebam, WA
- Average rainfall in September: 0.39"
The wettest month (with the highest rainfall) is December (1.46").
The driest months (with the least rainfall) are July and August (0.16").
Average rainfall days in September
Lebam, WA
- Average rainfall days in September: 7.2 days
The months with the highest number of rainy days are March and December (14.4 days).
The month with the least rainy days is August (4.1 days).
Average snowfall in September
Lebam, WA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Lebam, WA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Lebam, WA
- Average daylight in September: 12h and 30min
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: 8h and 12min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Lebam, WA
- Average sunshine days in September: 18.7 days
The month with the most sunshine days is August (22.9 days).
The month with the least sunshine days is February (11.5 days).
Average UV index in September
Lebam, WA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Lebam, WA
- Average cloud cover in September: 43
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in September
Lebam, WA
- Average visibility in September: 4mi
The months with the highest visibility are January, February, March, April, May, June, October, November and December (5mi).
The months with the lowest visibility are July, August and September (4mi).
