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 beginning of September involves a decrease in the average high-temperature, transitioning from a warm 83.5°F (28.6°C) in August to a pleasant 72.5°F (22.5°C). In Cheney, in September, the average low-temperature is a fresh 52.2°F (11.2°C).Humidity
In September, the average relative humidity is 46%.Rainfall
In September, in Cheney, Washington, the rain falls for 6.5 days. Throughout September, 0.59" (15mm) of precipitation is accumulated. In Cheney, during the entire year, the rain falls for 114.1 days and collects up to 14.88" (378mm) of precipitation.Snowfall
Months with snowfall in Cheney are January through May, September through December. September is the first month it typically snows in Cheney. Throughout September, in the average 0.2 snowfall days, it receives 0.16" (4mm) of snow. Throughout the year, in Cheney, there are 53 snowfall days, and 29.69" (754mm) of snow is accumulated.Daylight
The average length of the day in September in Cheney is 12h and 32min.On the first day of the month, sunrise is at 6:10 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:49 am and sunset at 6:30 pm PDT.
Sunshine
The average sunshine in September in Cheney is 10.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
What is the average September temperature in Cheney?
What is the average humidity in September in Cheney?
How much does it rain in Cheney in September?
When does it start snowing in Cheney?
How many hours of daylight does Cheney have in September?
What time are sunrise and sunset in September in Cheney?
How many hours of sunshine does Cheney have in September?
What is the UV index intensity in September in Cheney?
Average temperature in September
Cheney, WA
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is August (83.5°F).
The month with the lowest average high temperature is December (32.7°F).
- Average low temperature in September: 52.2°F
The month with the highest average low temperature is August (59.9°F).
The coldest month (with the lowest average low temperature) is December (23°F).
Average pressure in September
Cheney, WA
- Average pressure in September: 29.96"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
Cheney, WA
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in September
Cheney, 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
Cheney, WA
- Average rainfall in September: 0.59"
The wettest months (with the highest rainfall) are January, March and December (1.85").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in September
Cheney, WA
- Average rainfall days in September: 6.5 days
The months with the highest number of rainy days are March and April (14.1 days).
The month with the least rainy days is July (4.5 days).
Average snowfall in September
Cheney, WA
- Average snowfall in September: 0.16"
The month with the highest snowfall is January (8.27").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Cheney, WA
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Cheney, WA
- Average daylight in September: 12h and 3min
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 1min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).
Average sunshine days in September
Cheney, WA
- Average sunshine days in September: 21.9 days
The month with the most sunshine days is July (24.9 days).
The month with the least sunshine days is March (11.7 days).
Average UV index in September
Cheney, WA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Cheney, WA
- Average cloud cover in September: 20
The months with the most cloud cover are January and December (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility in September
Cheney, 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).
Cheney, Washington, USA
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