September weather forecastMetolius, OR
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Metolius, Oregon, with an average temperature varying between 72.5°F (22.5°C) and 48.6°F (9.2°C).Temperature
September implies a gentle temperature shift, with average high-temperatures reducing from August's warm 81.7°F (27.6°C) to an agreeable 72.5°F (22.5°C). Metolius's September nights bring a significant temperature shift, averaging at a frosty 48.6°F (9.2°C).Humidity
In Metolius, the average relative humidity in September is 55%.Rainfall
In September, the rain falls for 6.3 days. Throughout September, 0.51" (13mm) of precipitation is accumulated. Throughout the year, there are 121.1 rainfall days, and 11.38" (289mm) of precipitation is accumulated.Snowfall
Months with snowfall in Metolius are January through May, September, November and December. 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 Metolius, during the entire year, snow falls for 35.3 days and aggregates up to 17.6" (447mm) of snow.Daylight
In September, the average length of the day is 12h and 30min.On the first day of the month, sunrise is at 6:28 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:02 am and sunset at 6:46 pm PDT.
Sunshine
In Metolius, the average sunshine in September is 10.9h.UV index
In Metolius, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Metolius, OR
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is December (37.9°F).
- Average low temperature in September: 48.6°F
The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (26.2°F).
Average pressure in September
Metolius, OR
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in September
Metolius, OR
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Metolius, OR
- Average humidity in September: 55%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are July and August (48%).
Average rainfall in September
Metolius, OR
- Average rainfall in September: 0.51"
The wettest month (with the highest rainfall) is December (1.69").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in September
Metolius, OR
- Average rainfall days in September: 6.3 days
The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is July (3 days).
Average snowfall in September
Metolius, OR
- Average snowfall in September: 0.08"
The month with the highest snowfall is February (5.55").
The months with the least snowfall are June, July, August and October (0").
Average snowfall days in September
Metolius, OR
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (9.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Metolius, OR
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 10h and 54min
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 18min).
Average sunshine days in September
Metolius, OR
- Average sunshine days in September: 21.5 days
The month with the most sunshine days is July (26 days).
The month with the least sunshine days is February (10.9 days).
Average UV index in September
Metolius, 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
Metolius, OR
- Average cloud cover in September: 18
The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in September
Metolius, OR
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
