September weather forecastDeschutes River Woods, OR
September
Weather in September
September, the first month of the autumn in Deschutes River Woods, is still a pleasant month, with an average temperature ranging between min 46°F (7.8°C) and max 70°F (21.1°C).Temperature
A subtle shift in Deschutes River Woods's weather is observed as August turns into September, with the average high temperature reducing from a warm 78.8°F (26°C) to a pleasant 70°F (21.1°C). A dramatic downturn marks the September nights, with lows averaging at a frosty 46°F (7.8°C).Humidity
In Deschutes River Woods, the average relative humidity in September is 56%.Rainfall
In Deschutes River Woods, in September, it is raining for 6.6 days, with typically 0.83" (21mm) of accumulated precipitation. Throughout the year, there are 107.1 rainfall days, and 12.17" (309mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows in Deschutes River Woods. Throughout September, in the average 0.3 snowfall days, it receives 0.43" (11mm) of snow. In Deschutes River Woods, during the entire year, snow falls for 44.9 days and aggregates up to 24.57" (624mm) of snow.Daylight
In September, the average length of the day is 12h and 29min.On the first day of September, sunrise is at 6:29 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:47 pm PDT.
Sunshine
In September, the average sunshine is 10.8h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: During September, 3 as the daily maximum UV index converts into the following advice:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Deschutes River Woods, OR
- Average high temperature in September: 70°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is December (35.8°F).
- Average low temperature in September: 46°F
The month with the highest average low temperature is August (52.2°F).
The coldest month (with the lowest average low temperature) is December (24.6°F).
Average pressure in September
Deschutes River Woods, 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 (29.97"Hg).
Average wind speed in September
Deschutes River Woods, OR
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is January (7.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Deschutes River Woods, OR
- Average humidity in September: 56%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is July (48%).
Average rainfall in September
Deschutes River Woods, OR
- Average rainfall in September: 0.83"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in September
Deschutes River Woods, OR
- Average rainfall days in September: 6.6 days
The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is July (4.8 days).
Average snowfall in September
Deschutes River Woods, OR
- Average snowfall in September: 0.43"
The month with the highest snowfall is February (6.65").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Deschutes River Woods, OR
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is March (9.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Deschutes River Woods, OR
- Average daylight in September: 12h and 30min
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: 10h and 48min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Deschutes River Woods, OR
- Average sunshine days in September: 20.4 days
The month with the most sunshine days is July (23.6 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in September
Deschutes River Woods, 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
Deschutes River Woods, 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 10).
Average visibility in September
Deschutes River Woods, 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).





