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 September's onset, the weather shows a temperature decrease, transitioning from a moderately hot 82.9°F (28.3°C) in August to an agreeable 73°F (22.8°C). Anatone's average low-temperature for the month of September denotes a significant decline from the daily high, recording at a frosty 48.7°F (9.3°C).Humidity
The average relative humidity in September is 51%.Rainfall
In Anatone, Washington, in September, it is raining for 6.5 days, with typically 0.51" (13mm) of accumulated precipitation. In Anatone, during the entire year, the rain falls for 116.8 days and collects up to 10.16" (258mm) of precipitation.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 0.08" (2mm) of snow. In Anatone, during the entire year, snow falls for 33.1 days and aggregates up to 12.24" (311mm) of snow.Daylight
In September, the average length of the day is 12h and 31min.On the first day of the month, sunrise is at 6:10 am and sunset at 7:26 pm. On the last day of September, sunrise is at 6:46 am and sunset at 6:29 pm PDT.
Sunshine
The average sunshine in September is 10.3h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk 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:
Take precautions - Protection against sunburn is recommended. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
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 Anatone have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Anatone have in September?
What is the UV index intensity in September?
Average temperature in September
Anatone, WA
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is August (82.9°F).
The month with the lowest average high temperature is December (34.9°F).
- Average low temperature in September: 48.7°F
The month with the highest average low temperature is August (54.9°F).
The coldest month (with the lowest average low temperature) is December (22.3°F).
Average pressure in September
Anatone, WA
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in September
Anatone, WA
- Average wind speed in September: 4.3mph
The windiest months (with the highest average wind speed) are March and April (5.8mph).
The calmest months (with the lowest average wind speed) are August and September (4.3mph).
Average humidity in September
Anatone, WA
- Average humidity in September: 51%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (43%).
Average rainfall in September
Anatone, WA
- Average rainfall in September: 0.51"
The wettest month (with the highest rainfall) is May (1.46").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days in September
Anatone, WA
- Average rainfall days in September: 6.5 days
The month with the highest number of rainy days is April (14.8 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in September
Anatone, WA
- Average snowfall in September: 0.08"
The month with the highest snowfall is February (4.25").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Anatone, WA
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (8.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Anatone, WA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 10h and 2min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and February (Average sunshine: 4h and 42min).
Average sunshine days in September
Anatone, WA
- Average sunshine days in September: 21.5 days
The month with the most sunshine days is July (21.8 days).
The month with the least sunshine days is April (12.6 days).
Average UV index in September
Anatone, 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, March, November and December (UV index 2).
Average cloud cover in September
Anatone, WA
- Average cloud cover in September: 19
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in September
Anatone, 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 months with the lowest visibility are January, February and December (5mi).
Anatone, Washington, USA
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