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 80.2°F (26.8°C) to a still moderately hot 73.9°F (23.3°C). From significant daily highs, Umpqua's nights in September cool down to an average low-temperature of 45.3°F (7.4°C).Humidity
In September, the average relative humidity in Umpqua is 74%.Rainfall
In September, in Umpqua, the rain falls for 7.7 days. Throughout September, 1.26" (32mm) of precipitation is accumulated. In Umpqua, Oregon, during the entire year, the rain falls for 153.9 days and collects up to 27.72" (704mm) of precipitation.Snowfall
May through October are months without snowfall in Umpqua.Daylight
In September, the average length of the day in Umpqua is 12h and 29min.On the first day of the month, sunrise is at 6:38 am and sunset at 7:48 pm. On the last day of September, sunrise is at 7:11 am and sunset at 6:55 pm PDT.
Sunshine
In September, the average sunshine in Umpqua is 9.6h.UV index
In Umpqua, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 3 suggests this advice:
Undertake precautions - It is suggested to shield oneself from sunburn. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Frequently asked questions
What are September temperatures in Umpqua?
What is the average humidity in September in Umpqua?
How much does it rain in Umpqua in September?
When it does not snow in Umpqua?
How many hours of daylight does Umpqua have in September?
When are sunrise and sunset in September in Umpqua?
How many hours of sunshine does Umpqua have in September?
What is the UV index intensity in September in Umpqua?
Average temperature in September
Umpqua, OR
- Average high temperature in September: 73.9°F
The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (46°F).
- Average low temperature in September: 45.3°F
The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).
Average pressure in September
Umpqua, OR
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in September
Umpqua, OR
- Average wind speed in September: 3.2mph
The windiest months (with the highest average wind speed) are January and March (4mph).
The calmest month (with the lowest average wind speed) is September (3.2mph).
Average humidity in September
Umpqua, OR
- Average humidity in September: 74%
The months with the highest relative humidity are January, February and December (87%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in September
Umpqua, OR
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is December (4.17").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in September
Umpqua, OR
- Average rainfall days in September: 7.7 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (3.3 days).
Average snowfall in September
Umpqua, OR
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Umpqua, OR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Umpqua, 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: 9h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in September
Umpqua, OR
- Average sunshine days in September: 20.5 days
The month with the most sunshine days is July (25.4 days).
The month with the least sunshine days is February (9.7 days).
Average UV index in September
Umpqua, OR
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Umpqua, OR
- Average cloud cover in September: 34
The month with the most cloud cover is March (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Umpqua, OR
- Average visibility in September: 5mi
The months with the highest visibility are July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (4mi).
Umpqua, Oregon, USA
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