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
During Brothers's transition into September, the average high-temperature lessens, moving from a warm 80.6°F (27°C) in August to an agreeable 71.1°F (21.7°C). September nights in Brothers show a substantial disparity from the daytime peak with an average low-temperature of 48.4°F (9.1°C).Humidity
The average relative humidity in September is 50%.Rainfall
In Brothers, during September, the rain falls for 3.7 days and regularly aggregates up to 0.35" (9mm) of precipitation. Throughout the year, in Brothers, Oregon, there are 65.5 rainfall days, and 5.67" (144mm) of precipitation is accumulated.Snowfall
Months with snowfall in Brothers are January through April, September through December. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. In Brothers, Oregon, during the entire year, snow falls for 20.9 days and aggregates up to 9.02" (229mm) of snow.Daylight
In September, the average length of the day in Brothers, Oregon, is 12h and 29min.On the first day of September, sunrise is at 6:26 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:44 pm PDT.
Sunshine
In September, the average sunshine in Brothers is 11h.UV index
In September, the average daily maximum UV index in Brothers is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 3 in September leads to these recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
What is the usual temperature for Brothers in September?
What is the average humidity in September in Brothers?
How much does it rain in Brothers in September?
When does it start to snow in Brothers?
How many hours of daylight does Brothers have in September?
When is the sunrise / sunset in September in Brothers?
How many hours of sunshine does Brothers have in September?
What is the UV index reading in September in Brothers?
Average temperature in September
Brothers, OR
- Average high temperature in September: 71.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is December (36.1°F).
- Average low temperature in September: 48.4°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (24.3°F).
Average pressure in September
Brothers, OR
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in September
Brothers, OR
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest months (with the lowest average wind speed) are August and September (5.7mph).
Average humidity in September
Brothers, OR
- Average humidity in September: 50%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are July and August (43%).
Average rainfall in September
Brothers, OR
- Average rainfall in September: 0.35"
The wettest month (with the highest rainfall) is May (0.67").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in September
Brothers, OR
- Average rainfall days in September: 3.7 days
The month with the highest number of rainy days is March (9 days).
The month with the least rainy days is July (2 days).
Average snowfall in September
Brothers, OR
- Average snowfall in September: 0.04"
The month with the highest snowfall is February (3.15").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in September
Brothers, OR
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (4.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Brothers, OR
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- 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
Brothers, OR
- Average sunshine days in September: 25.8 days
The month with the most sunshine days is July (28.3 days).
The month with the least sunshine days is March (19.5 days).
Average UV index in September
Brothers, 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
Brothers, OR
- Average cloud cover in September: 16
The month with the most cloud cover is December (Cloud cover 45).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in September
Brothers, OR
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).
Brothers, Oregon, USA
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