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 start of September involves a subtle temperature drop, shifting from 80.8°F (27.1°C) in August to a still moderately hot 73.8°F (23.2°C). Independence experiences a significant reduction from daytime highs with an average low-temperature of 50°F (10°C) in September.Humidity
The average relative humidity in September is 73%.Rainfall
In September, the rain falls for 7.8 days. Throughout September, 0.43" (11mm) of precipitation is accumulated. Throughout the year, there are 144.6 rainfall days, and 10.04" (255mm) of precipitation is accumulated.Snowfall
In Independence, Oregon, snow does not fall in April through November.Daylight
In September, the average length of the day is 12h and 30min.On the first day of September, sunrise is at 6:36 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:54 pm PDT.
Sunshine
In September, the average sunshine is 9.2h.UV index
In Independence, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In September, a regular UV index of 4 translates into these guidelines:
Prioritize safety - Recommendations to avert sunburn are shared. To protect against the Sun's most potent rays, avoid direct exposure around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Independence have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Independence, OR
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is August (80.8°F).
The month with the lowest average high temperature is December (44.2°F).
- Average low temperature in September: 50°F
The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).
Average pressure in September
Independence, 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
Independence, OR
- Average wind speed in September: 4mph
The windiest month (with the highest average wind speed) is March (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in September
Independence, OR
- Average humidity in September: 73%
The months with the highest relative humidity are February and December (88%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Independence, OR
- Average rainfall in September: 0.43"
The wettest month (with the highest rainfall) is December (1.54").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in September
Independence, OR
- Average rainfall days in September: 7.8 days
The month with the highest number of rainy days is March (17.8 days).
The month with the least rainy days is August (4 days).
Average snowfall in September
Independence, OR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Independence, OR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Independence, OR
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 9h and 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in September
Independence, OR
- Average sunshine days in September: 19.1 days
The month with the most sunshine days is July (24.9 days).
The month with the least sunshine days is March (9.7 days).
Average UV index in September
Independence, OR
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Independence, OR
- Average cloud cover in September: 33
The months with the most cloud cover are February and March (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Independence, OR
- Average visibility in September: 5mi
The month with the highest visibility is August (6mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
Independence, Oregon, USA
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