September weather forecastDavenport, WA
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Davenport, Washington, with an average temperature fluctuating between 52.2°F (11.2°C) and 72.5°F (22.5°C).Temperature
The start of September comes with a reduction in the average high-temperature, receding from a moderately hot 83.3°F (28.5°C) in August to a pleasant 72.5°F (22.5°C). Davenport anticipates an average minimum temperature of 52.2°F (11.2°C) in the month of September.Humidity
In September, the average relative humidity is 46%.Rainfall
In September, the rain falls for 7.6 days. Throughout September, 0.59" (15mm) of precipitation is accumulated. Throughout the year, there are 127.9 rainfall days, and 15.71" (399mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through 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. Throughout the year, there are 65.1 snowfall days, and 37.36" (949mm) of snow is accumulated.Daylight
In Davenport, the average length of the day in September is 12h and 33min.On the first day of the month, sunrise is at 6:12 am and sunset at 7:32 pm. On the last day of September, in Davenport, sunrise is at 6:51 am and sunset at 6:33 pm PDT.
Sunshine
In Davenport, the average sunshine in September is 10.4h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Exercise prevention - Protecting skin and eyes from harm is required. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Davenport, WA
- Average high temperature in September: 72.5°F
The warmest months (with the highest average high temperature) are July and August (83.3°F).
The month with the lowest average high temperature is December (31.5°F).
- Average low temperature in September: 52.2°F
The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).
Average pressure in September
Davenport, WA
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.9"Hg).
Average wind speed in September
Davenport, WA
- Average wind speed in September: 6.9mph
The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in September
Davenport, WA
- Average humidity in September: 46%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (37%).
Average rainfall in September
Davenport, WA
- Average rainfall in September: 0.59"
The wettest month (with the highest rainfall) is March (1.97").
The driest months (with the least rainfall) are July and August (0.31").
Average rainfall days in September
Davenport, WA
- Average rainfall days in September: 7.6 days
The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (5.2 days).
Average snowfall in September
Davenport, WA
- Average snowfall in September: 0.04"
The month with the highest snowfall is January (10").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Davenport, WA
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (15.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Davenport, 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 30min).
- Average sunshine in September: 10h and 24min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in September
Davenport, WA
- Average sunshine days in September: 20.9 days
The month with the most sunshine days is July (23.7 days).
The month with the least sunshine days is March (10.2 days).
Average UV index in September
Davenport, 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, March, October, November and December (UV index 2).
Average cloud cover in September
Davenport, WA
- Average cloud cover in September: 19
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility in September
Davenport, WA
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
