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
Otter Rock in September witnesses an average high-temperature of a still comfortable 65.5°F (18.6°C), indicating a slight variation from August's 67.6°F (19.8°C). September's average low-temperature reading settles at a fresh 52°F (11.1°C).Humidity
The months with the lowest humidity are April, May, July, September and October, with an average relative humidity of 81%.Rainfall
In September, the rain falls for 6.8 days. Throughout September, 0.91" (23mm) of precipitation is accumulated. In Otter Rock, during the entire year, the rain falls for 139.5 days and collects up to 18.66" (474mm) of precipitation.Snowfall
In Otter Rock, Oregon, snow does not fall in March through October and December.Daylight
In Otter Rock, the average length of the day in September is 12h and 30min.On the first day of September, sunrise is at 6:39 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 6:57 pm PDT.
Sunshine
The average sunshine in September is 9h.UV index
In Otter Rock, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 4 in September translates into this advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What is the temperature in September in Otter Rock?
What are the least humid months in Otter Rock?
What is the average humidity in September in Otter Rock?
How much does it rain in Otter Rock in September?
When it does not snow in Otter Rock?
What is the average length of the day in September in Otter Rock?
When is the sunrise / sunset in September in Otter Rock?
How long on average sun shines in September in Otter Rock?
What is the UV index reading in September in Otter Rock?
Average temperature in September
Otter Rock, OR
- Average high temperature in September: 65.5°F
The warmest month (with the highest average high temperature) is August (67.6°F).
The month with the lowest average high temperature is December (47.7°F).
- Average low temperature in September: 52°F
The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (40.6°F).
Average pressure in September
Otter Rock, OR
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is September (30.02"Hg).
Average wind speed in September
Otter Rock, OR
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in September
Otter Rock, OR
- Average humidity in September: 81%
The months with the highest relative humidity are February, March, November and December (83%).
The months with the lowest relative humidity are April, May, July, September and October (81%).
Average rainfall in September
Otter Rock, OR
- Average rainfall in September: 0.91"
The wettest month (with the highest rainfall) is December (3.07").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in September
Otter Rock, OR
- Average rainfall days in September: 6.8 days
The month with the highest number of rainy days is March (18.2 days).
The month with the least rainy days is August (3.7 days).
Average snowfall in September
Otter Rock, OR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.28").
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Otter Rock, OR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Otter Rock, OR
- Average daylight in September: 12h and 3min
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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and February (Average sunshine: 4h and 0min).
Average sunshine days in September
Otter Rock, OR
- Average sunshine days in September: 21.5 days
The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is March (10.9 days).
Average UV index in September
Otter Rock, OR
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in September
Otter Rock, OR
- Average cloud cover in September: 34
The months with the most cloud cover are February and March (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in September
Otter Rock, OR
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are August and September (5mi).
Otter Rock, Oregon, USA
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