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
September's onset introduces a mild reduction in the average high-temperature, from 84.4°F (29.1°C) in August to a still warm 77.2°F (25.1°C). A steady average of 45.7°F (7.6°C) throughout September underscores a considerable divergence from the daytime high.Humidity
In September, the average relative humidity in White City is 62%.Rainfall
In White City, in September, it is raining for 5.1 days, with typically 0.67" (17mm) of accumulated precipitation. In White City, during the entire year, the rain falls for 129 days and collects up to 18.07" (459mm) of precipitation.Snowfall
In White City, snow does not fall in May through October.Daylight
In White City, Oregon, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:44 pm. On the last day of September, in White City, sunrise is at 7:08 am and sunset at 6:53 pm PDT.
Sunshine
The average sunshine in September is 10.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Be vigilant - Preventing sunburn is recommended. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
What are September temperatures in White City?
What is the average humidity in September in White City?
How many days does it rain in September in White City?
When it does not snow in White City?
What is the average length of the day in September in White City?
When are sunrise and sunset in September in White City?
How long on average sun shines in September in White City?
How high is the UV index in September in White City?
Average temperature in September
White City, OR
- Average high temperature in September: 77.2°F
The warmest month (with the highest average high temperature) is August (84.4°F).
The month with the lowest average high temperature is December (44.2°F).
- Average low temperature in September: 45.7°F
The month with the highest average low temperature is August (50.4°F).
The coldest month (with the lowest average low temperature) is December (30.2°F).
Average pressure in September
White City, OR
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).
Average wind speed in September
White City, OR
- Average wind speed in September: 3.5mph
The windiest month (with the highest average wind speed) is January (4.4mph).
The calmest months (with the lowest average wind speed) are September and October (3.5mph).
Average humidity in September
White City, OR
- Average humidity in September: 62%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (59%).
Average rainfall in September
White City, OR
- Average rainfall in September: 0.67"
The wettest month (with the highest rainfall) is December (2.99").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in September
White City, OR
- Average rainfall days in September: 5.1 days
The month with the highest number of rainy days is March (17.9 days).
The month with the least rainy days is July (3 days).
Average snowfall in September
White City, OR
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.19").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
White City, OR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
White City, OR
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 10h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
White City, OR
- Average sunshine days in September: 23.8 days
The month with the most sunshine days is August (26.4 days).
The month with the least sunshine days is March (10.9 days).
Average UV index in September
White City, OR
- 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
White City, OR
- Average cloud cover in September: 19
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in September
White City, OR
- Average visibility in September: 6mi
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, May, November and December (5mi).
White City, Oregon, USA
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