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
The onset of September results in a decrease in the average high-temperature, receding from a moderately hot 82.8°F (28.2°C) in August to an agreeable 70.7°F (21.5°C). From significant daily highs, Cedonia's nights in September cool down to an average low-temperature of 44.6°F (7°C).Humidity
The average relative humidity in September is 56%.Rainfall
In Cedonia, during September, the rain falls for 4.9 days and regularly aggregates up to 0.55" (14mm) of precipitation. In Cedonia, during the entire year, the rain falls for 86.5 days and collects up to 6.42" (163mm) of precipitation.Snowfall
Months with snowfall are January through April, September, November and December. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.51" (13mm) of snow. In Cedonia, Washington, during the entire year, snow falls for 24.6 days and aggregates up to 6.38" (162mm) of snow.Daylight
In Cedonia, the average length of the day in September is 12h and 34min.On the first day of September in Cedonia, sunrise is at 6:11 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:33 pm PDT.
Sunshine
In Cedonia, Washington, the average sunshine in September is 10.4h.UV index
The average daily maximum UV index in September in Cedonia is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In September, the UV index of 4 transforms into the following advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
What are September temperatures in Cedonia?
What is the average humidity in September in Cedonia?
How much does it rain in Cedonia in September?
When does it start to snow in Cedonia?
How many hours of daylight does Cedonia have in September?
When are sunrise and sunset in September in Cedonia?
How long on average sun shines in September in Cedonia?
What is the UV index intensity in September in Cedonia?
Average temperature in September
Cedonia, WA
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is August (82.8°F).
The month with the lowest average high temperature is December (29.7°F).
- Average low temperature in September: 44.6°F
The month with the highest average low temperature is August (52.3°F).
The coldest months (with the lowest average low temperature) are February and December (18.3°F).
Average pressure in September
Cedonia, WA
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in September
Cedonia, WA
- Average wind speed in September: 4mph
The windiest month (with the highest average wind speed) is April (4.6mph).
The calmest months (with the lowest average wind speed) are January and December (3.4mph).
Average humidity in September
Cedonia, WA
- Average humidity in September: 56%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (47%).
Average rainfall in September
Cedonia, WA
- Average rainfall in September: 0.55"
The wettest month (with the highest rainfall) is May (1.06").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in September
Cedonia, WA
- Average rainfall days in September: 4.9 days
The month with the highest number of rainy days is May (11.3 days).
The month with the least rainy days is September (4.9 days).
Average snowfall in September
Cedonia, WA
- Average snowfall in September: 0.51"
The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days in September
Cedonia, WA
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (7.5 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Cedonia, WA
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 10h and 2min
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 42min).
Average sunshine days in September
Cedonia, WA
- Average sunshine days in September: 23.8 days
The month with the most sunshine days is September (23.8 days).
The month with the least sunshine days is June (17.3 days).
Average UV index in September
Cedonia, WA
- Average UV index in September: 4
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
Cedonia, WA
- Average cloud cover in September: 21
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Cedonia, WA
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (2mi).
Cedonia, Washington, USA
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