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 August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from a warm 79.3°F (26.3°C) to a pleasant 70.9°F (21.6°C). Nightfall in September introduces a considerable dip in temperature, settling at an average of 45.9°F (7.7°C).Humidity
The average relative humidity in September is 42%.Rainfall
In Adel, in September, during 5 rainfall days, 0.47" (12mm) of precipitation is typically accumulated. Throughout the year, there are 93.6 rainfall days, and 15.28" (388mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 0.39" (10mm) of snow. Throughout the year, there are 72.8 snowfall days, and 57.17" (1452mm) of snow is accumulated.Daylight
In Adel, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:25 am and sunset at 7:32 pm. On the last day of September, sunrise is at 6:56 am and sunset at 6:42 pm PDT.
Sunshine
The average sunshine in September in Adel is 11h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The UV index of 3 during September leads to these advisories:
Prioritize safety - Suggestions to prevent sun damage are offered. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How much does it rain in September?
When does it start snowing?
What is the average length of the day in September in Adel?
When are sunrise and sunset in September?
How many hours of sunshine does Adel have in September?
How high is the UV index in September?
Average temperature in September
Adel, OR
- Average high temperature in September: 70.9°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is December (34.3°F).
- Average low temperature in September: 45.9°F
The month with the highest average low temperature is July (51.4°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).
Average pressure in September
Adel, OR
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The months with the lowest atmospheric pressure are June and August (29.94"Hg).
Average wind speed in September
Adel, OR
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in September
Adel, OR
- Average humidity in September: 42%
The months with the highest relative humidity are January and December (81%).
The month with the lowest relative humidity is August (36%).
Average rainfall in September
Adel, OR
- Average rainfall in September: 0.47"
The wettest month (with the highest rainfall) is December (2.28").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in September
Adel, OR
- Average rainfall days in September: 5 days
The months with the highest number of rainy days are March, April and May (11.8 days).
The month with the least rainy days is August (3.3 days).
Average snowfall in September
Adel, OR
- Average snowfall in September: 0.39"
The month with the highest snowfall is December (13.35").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Adel, OR
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is December (14.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Adel, 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 12min).
- Average sunshine in September: 11h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Adel, OR
- Average sunshine days in September: 24 days
The month with the most sunshine days is August (25 days).
The month with the least sunshine days is March (11.8 days).
Average UV index in September
Adel, OR
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Adel, OR
- Average cloud cover in September: 13
The months with the most cloud cover are March and December (Cloud cover 45).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility in September
Adel, OR
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Adel, Oregon, USA
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