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
A minor decrease in the average high-temperature is observed during September, shifting from a moderately hot 81°F (27.2°C) in August to a pleasant 73.2°F (22.9°C). Throughout September, Aurora notes a dramatic plunge from the daily high to an average low-temperature of 50.9°F (10.5°C).Humidity
In Aurora, the average relative humidity in September is 70%.Rainfall
In Aurora, in September, it is raining for 9.9 days, with typically 1.54" (39mm) of accumulated precipitation. In Aurora, during the entire year, the rain falls for 173.8 days and collects up to 29.96" (761mm) of precipitation.Snowfall
In Aurora, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:47 pm. On the last day of September, sunrise is at 7:08 am and sunset at 6:52 pm PDT.
Sunshine
In September, the average sunshine is 9.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Prioritize safety - Suggestions to prevent sun damage are offered. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Aurora in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Aurora, OR
- Average high temperature in September: 73.2°F
The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (44.2°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 (34.3°F).
Average pressure in September
Aurora, OR
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in September
Aurora, OR
- Average wind speed in September: 4mph
The windiest months (with the highest average wind speed) are January and February (5.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in September
Aurora, OR
- Average humidity in September: 70%
The months with the highest relative humidity are January, February and December (85%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Aurora, OR
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is December (4.49").
The driest months (with the least rainfall) are July and August (0.31").
Average rainfall days in September
Aurora, OR
- Average rainfall days in September: 9.9 days
The month with the highest number of rainy days is March (20.9 days).
The months with the least rainy days are July and August (4.4 days).
Average snowfall in September
Aurora, OR
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Aurora, OR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 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
Aurora, 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 2min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in September
Aurora, OR
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is July (25 days).
The month with the least sunshine days is March (8.3 days).
Average UV index in September
Aurora, 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
Aurora, OR
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Aurora, 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).
Aurora, Oregon, USA
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