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 modest decline in the average high-temperature is seen during September, decreasing from 84°F (28.9°C) in August to a still moderately hot 77.9°F (25.5°C). During September, Oregon's temperature falls to a steady low-temperature average of 58.1°F (14.5°C).Humidity
The average relative humidity in September is 75%.Rainfall
In Oregon, during September, the rain falls for 12.5 days and regularly aggregates up to 2.48" (63mm) of precipitation. Throughout the year, there are 133.5 rainfall days, and 27.28" (693mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Oregon, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:49 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:16 am and sunset at 7:03 pm CDT.
Sunshine
In September, the average sunshine in Oregon is 9.3h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, an average UV index of 5 transforms into the following instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Oregon have in September?
What time 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
Oregon, MO
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in September
Oregon, MO
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Oregon, MO
- Average wind speed in September: 7.3mph
The windiest months (with the highest average wind speed) are February and March (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.4mph).
Average humidity in September
Oregon, MO
- Average humidity in September: 75%
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Oregon, MO
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in September
Oregon, MO
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Oregon, MO
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.68").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Oregon, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Oregon, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Oregon, MO
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is December (21.1 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in September
Oregon, MO
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Oregon, MO
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in September
Oregon, MO
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Oregon, Missouri, USA
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