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 advent of September brings a subtle shift in temperature, with the average high moving from a moderately hot 81.1°F (27.3°C) in August to an agreeable 73°F (22.8°C). Nighttime in September brings a stark departure from the daily high, resting at an average low-temperature of 50.9°F (10.5°C).Humidity
The average relative humidity in September is 70%.Rainfall
In Orchards, in September, during 10.6 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. In Orchards, during the entire year, the rain falls for 173.3 days and collects up to 34.72" (882mm) of precipitation.Snowfall
In Orchards, snow does not fall in April through October.Daylight
In Orchards, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:32 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:51 pm PDT.
Sunshine
In Orchards, the average sunshine in September is 9.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
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 many days does it rain in September?
When it does not snow in Orchards?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Orchards have in September?
What is the UV index reading in September?
Average temperature in September
Orchards, WA
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (43.9°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (34°F).
Average pressure in September
Orchards, WA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in September
Orchards, WA
- Average wind speed in September: 3.9mph
The windiest month (with the highest average wind speed) is January (6mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in September
Orchards, WA
- Average humidity in September: 70%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Orchards, WA
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is December (5.16").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in September
Orchards, WA
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is March (19.5 days).
The month with the least rainy days is August (4.3 days).
Average snowfall in September
Orchards, WA
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Orchards, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Orchards, WA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in September
Orchards, WA
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is August (24.7 days).
The month with the least sunshine days is February (8.7 days).
Average UV index in September
Orchards, 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 2).
Average cloud cover in September
Orchards, WA
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Orchards, WA
- Average visibility in September: 6mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).
Orchards, Washington, USA
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