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 beginning of September, the average high-temperature shows a decrease, transitioning from a moderately hot 78.4°F (25.8°C) in August to a comfortable 67.1°F (19.5°C). A pronounced dip becomes evident during the nights in September as Leadpoint logs a consistent average temperature of 40.1°F (4.5°C).Humidity
The average relative humidity in September is 64%.Rainfall
In September, the rain falls for 7.1 days. Throughout September, 0.51" (13mm) of precipitation is accumulated. Throughout the year, there are 107 rainfall days, and 9.45" (240mm) of precipitation is accumulated.Snowfall
January through April, September through December are months with snowfall in Leadpoint. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 42.6 snowfall days, and 16.26" (413mm) of snow is accumulated.Daylight
The average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 6:08 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:30 pm PDT.
Sunshine
The average sunshine in September is 10.1h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A daily high UV index of 3 in September leads to these guidelines:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When does it start snowing?
How many hours of daylight does Leadpoint have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Leadpoint, WA
- Average high temperature in September: 67.1°F
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (27.1°F).
- Average low temperature in September: 40.1°F
The month with the highest average low temperature is August (46.6°F).
The coldest month (with the lowest average low temperature) is February (13.3°F).
Average pressure in September
Leadpoint, WA
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Leadpoint, WA
- Average wind speed in September: 3.3mph
The windiest month (with the highest average wind speed) is April (3.7mph).
The calmest months (with the lowest average wind speed) are January and December (3mph).
Average humidity in September
Leadpoint, WA
- Average humidity in September: 64%
The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (54%).
Average rainfall in September
Leadpoint, WA
- Average rainfall in September: 0.51"
The wettest month (with the highest rainfall) is May (1.18").
The driest month (with the least rainfall) is August (0.2").
Average rainfall days in September
Leadpoint, WA
- Average rainfall days in September: 7.1 days
The month with the highest number of rainy days is April (13.6 days).
The month with the least rainy days is August (3.3 days).
Average snowfall in September
Leadpoint, WA
- Average snowfall in September: 0.08"
The month with the highest snowfall is December (5.16").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in September
Leadpoint, WA
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (11.5 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Leadpoint, WA
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Leadpoint, WA
- Average sunshine days in September: 21.6 days
The month with the most sunshine days is August (26.1 days).
The month with the least sunshine days is April (13.3 days).
Average UV index in September
Leadpoint, 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 1).
Average cloud cover in September
Leadpoint, WA
- Average cloud cover in September: 25
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in September
Leadpoint, WA
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January and February (2mi).
Leadpoint, Washington, USA
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