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
As September commences, the average high-temperature subtly reduces, transitioning from 81.7°F (27.6°C) in August to a still moderately hot 74.3°F (23.5°C). During September, Cedar Hills detects a significant contrast from its daytime temperatures, with nights averaging at a cool 52°F (11.1°C).Humidity
In Cedar Hills, Oregon, the average relative humidity in September is 69%.Rainfall
In Cedar Hills, in September, it is raining for 10.5 days, with typically 1.54" (39mm) of accumulated precipitation. Throughout the year, in Cedar Hills, there are 173.2 rainfall days, and 30.55" (776mm) of precipitation is accumulated.Snowfall
In Cedar Hills, Oregon, snow does not fall in April through October.Daylight
In Cedar Hills, the average length of the day in September is 12h and 31min.On the first day of September in Cedar Hills, sunrise is at 6:33 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:52 pm PDT.
Sunshine
In Cedar Hills, Oregon, the average sunshine in September is 9.2h.UV index
In September, the average daily maximum UV index in Cedar Hills is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. It's recommended to limit sun exposure when its radiation is at its peak during midday. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
What is the usual temperature for Cedar Hills in September?
What is the average humidity in September in Cedar Hills?
How many days does it rain in September in Cedar Hills?
When it does not snow in Cedar Hills?
What is the average length of the day in September in Cedar Hills?
What time are sunrise and sunset in September in Cedar Hills?
How many hours of sunshine does Cedar Hills have in September?
What is the UV index reading in September in Cedar Hills?
Average temperature in September
Cedar Hills, OR
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is August (81.7°F).
The month with the lowest average high temperature is December (44.2°F).
- Average low temperature in September: 52°F
The month with the highest average low temperature is August (55.6°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).
Average pressure in September
Cedar Hills, OR
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in September
Cedar Hills, OR
- Average wind speed in September: 4.1mph
The windiest month (with the highest average wind speed) is January (5.4mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in September
Cedar Hills, OR
- Average humidity in September: 69%
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is August (63%).
Average rainfall in September
Cedar Hills, OR
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is December (4.61").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in September
Cedar Hills, OR
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is March (20.6 days).
The month with the least rainy days is August (4.6 days).
Average snowfall in September
Cedar Hills, OR
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Cedar Hills, OR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.2 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
Cedar Hills, OR
- 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 1min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in September
Cedar Hills, OR
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is July (24.9 days).
The month with the least sunshine days is March (8.6 days).
Average UV index in September
Cedar Hills, 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
Cedar Hills, OR
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Cedar Hills, OR
- 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).
Cedar Hills, Oregon, USA
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