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
The arrival of September correlates with a minor temperature reduction, down from August's warm 76.5°F (24.7°C) to an enjoyable 67.8°F (19.9°C). Nighttime temperatures in September average to a chilly 46.6°F (8.1°C) in Rhododendron.Humidity
The average relative humidity in September in Rhododendron is 68%.Rainfall
In Rhododendron, in September, it is raining for 8.5 days, with typically 1.26" (32mm) of accumulated precipitation. In Rhododendron, during the entire year, the rain falls for 111.1 days and collects up to 36.93" (938mm) of precipitation.Snowfall
Months with snowfall in Rhododendron are January through June, September through December. September is the first month it typically snows in Rhododendron. Throughout September, in the average 0.4 snowfall days, it receives 1.26" (32mm) of snow. In Rhododendron, Oregon, during the entire year, snow falls for 102 days and aggregates up to 169.65" (4309mm) of snow.Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:49 pm PDT.
Sunshine
In Rhododendron, Oregon, the average sunshine in September is 9.7h.UV index
In September, the average daily maximum UV index in Rhododendron is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: During September, 3 as the daily maximum UV index converts into the following advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What is the average September temperature in Rhododendron?
What is the average humidity in September in Rhododendron?
How much does it rain in Rhododendron in September?
When does it start snowing in Rhododendron?
What is the average length of the day in September in Rhododendron?
When are sunrise and sunset in September in Rhododendron?
How long on average sun shines in September in Rhododendron?
How high is the UV index in September in Rhododendron?
Average temperature in September
Rhododendron, OR
- Average high temperature in September: 67.8°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (35.4°F).
- Average low temperature in September: 46.6°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (26.4°F).
Average pressure in September
Rhododendron, OR
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).
Average wind speed in September
Rhododendron, OR
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is January (6.5mph).
The calmest months (with the lowest average wind speed) are August and September (4.7mph).
Average humidity in September
Rhododendron, OR
- Average humidity in September: 68%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is August (62%).
Average rainfall in September
Rhododendron, OR
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is January (6.5").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in September
Rhododendron, OR
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is October (13.8 days).
The month with the least rainy days is July (4.4 days).
Average snowfall in September
Rhododendron, OR
- Average snowfall in September: 1.26"
The month with the highest snowfall is December (37.2").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Rhododendron, OR
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is December (18.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Rhododendron, OR
- Average daylight in September: 12h and 3min
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: 9h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 30min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 54min).
Average sunshine days in September
Rhododendron, OR
- Average sunshine days in September: 20.1 days
The month with the most sunshine days is July (26.1 days).
The month with the least sunshine days is February (8.9 days).
Average UV index in September
Rhododendron, OR
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Rhododendron, OR
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Rhododendron, OR
- Average visibility in September: 6mi
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Rhododendron, Oregon, USA
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