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
In Orondo, the average high-temperature in September decreases from a warm 82.6°F (28.1°C) in August to a pleasant 71.2°F (21.8°C). Orondo undergoes a major shift from daytime highs, averaging a frosty 47.5°F (8.6°C) during the night in September.Humidity
In September, the average relative humidity in Orondo is 55%.Rainfall
In Orondo, in September, it is raining for 6 days, with typically 0.67" (17mm) of accumulated precipitation. In Orondo, during the entire year, the rain falls for 111.1 days and collects up to 11.3" (287mm) of precipitation.Snowfall
May through October are months without snowfall in Orondo.Daylight
In September, the average length of the day in Orondo is 12h and 33min.On the first day of September, sunrise is at 6:20 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:41 pm PDT.
Sunshine
In September, the average sunshine is 10.8h.UV index
In Orondo, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In September, a regular UV index of 3 translates into these guidelines:
Be vigilant - A duty to shield skin and eyes from injury exists. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
What is the usual temperature for Orondo in September?
What is the average humidity in September in Orondo?
How much does it rain in Orondo in September?
When it does not snow in Orondo?
What is the average length of the day in September in Orondo?
When is the sunrise / sunset in September in Orondo?
How many hours of sunshine does Orondo have in September?
What is the UV index reading in September in Orondo?
Average temperature in September
Orondo, WA
- Average high temperature in September: 71.2°F
The warmest months (with the highest average high temperature) are July and August (82.6°F).
The month with the lowest average high temperature is December (32.4°F).
- Average low temperature in September: 47.5°F
The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).
Average pressure in September
Orondo, WA
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in September
Orondo, WA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).
Average humidity in September
Orondo, WA
- Average humidity in September: 55%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are July and August (47%).
Average rainfall in September
Orondo, WA
- Average rainfall in September: 0.67"
The wettest month (with the highest rainfall) is January (1.77").
The driest months (with the least rainfall) are July and August (0.24").
Average rainfall days in September
Orondo, WA
- Average rainfall days in September: 6 days
The month with the highest number of rainy days is March (14 days).
The month with the least rainy days is August (3.4 days).
Average snowfall in September
Orondo, WA
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.76").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Orondo, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (6.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Orondo, 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 5min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in September
Orondo, WA
- Average sunshine days in September: 22.2 days
The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is February (13.3 days).
Average UV index in September
Orondo, WA
- Average UV index in September: 3
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
Orondo, WA
- Average cloud cover in September: 18
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in September
Orondo, WA
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Orondo, Washington, USA
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