September weather forecastNorth Powder, OR
September
Weather in September
The first month of the autumn, September, is still a pleasant month in North Powder, Oregon, with an average temperature ranging between max 70.7°F (21.5°C) and min 45.9°F (7.7°C).Temperature
As August transitions into September, North Powder sees a drop in the average high-temperature, transitioning from a warm 80.1°F (26.7°C) to a pleasant 70.7°F (21.5°C). Nighttime in September brings a stark departure from the daily high, resting at an average low-temperature of 45.9°F (7.7°C).Humidity
The average relative humidity in September is 51%.Rainfall
In North Powder, in September, it is raining for 7.7 days, with typically 0.71" (18mm) of accumulated precipitation. In North Powder, during the entire year, the rain falls for 153 days and collects up to 20.59" (523mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow. In North Powder, Oregon, during the entire year, snow falls for 67 days and aggregates up to 44.45" (1129mm) of snow.Daylight
In September, the average length of the day is 12h and 31min.On the first day of the month, sunrise is at 6:14 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:49 am and sunset at 6:33 pm PDT.
Sunshine
In September, the average sunshine is 10.6h.UV index
In North Powder, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 4 in September transforms into this advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
North Powder, OR
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is August (80.1°F).
The month with the lowest average high temperature is December (31.8°F).
- Average low temperature in September: 45.9°F
The month with the highest average low temperature is August (52.3°F).
The coldest month (with the lowest average low temperature) is December (20.1°F).
Average pressure in September
North Powder, OR
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in September
North Powder, OR
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is December (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in September
North Powder, OR
- Average humidity in September: 51%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (44%).
Average rainfall in September
North Powder, OR
- Average rainfall in September: 0.71"
The wettest months (with the highest rainfall) are February and December (2.6").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in September
North Powder, OR
- Average rainfall days in September: 7.7 days
The month with the highest number of rainy days is March (18.3 days).
The month with the least rainy days is August (5.3 days).
Average snowfall in September
North Powder, OR
- Average snowfall in September: 0.08"
The month with the highest snowfall is February (10.94").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
North Powder, OR
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (14.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
North Powder, OR
- Average daylight in September: 12h and 30min
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: 10h and 36min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in September
North Powder, OR
- Average sunshine days in September: 19.3 days
The month with the most sunshine days is July (21.9 days).
The month with the least sunshine days is March (7.8 days).
Average UV index in September
North Powder, OR
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
North Powder, OR
- Average cloud cover in September: 17
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in September
North Powder, OR
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
