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
Transitioning into September, Sitkum experiences an average high-temperature of a pleasant 70.5°F (21.4°C), marking a minor shift from the preceding month. During September, the nighttime temperature in Sitkum presents a clear descent from the daily peaks, falling to an average of 47.8°F (8.8°C).Humidity
The months with the lowest humidity in Sitkum are July through September, with an average relative humidity of 78%.Rainfall
In Sitkum, in September, during 6.7 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, in Sitkum, there are 148.1 rainfall days, and 30.87" (784mm) of precipitation is accumulated.Snowfall
April through October and December are months without snowfall.Daylight
In Sitkum, the average length of the day in September is 12h and 29min.On the first day of September in Sitkum, sunrise is at 6:40 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:57 pm PDT.
Sunshine
The average sunshine in September in Sitkum is 9.7h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Frequently asked questions
What is the usual temperature for Sitkum in September?
What are the least humid months in Sitkum?
What is the average humidity in September in Sitkum?
How many days does it rain in September in Sitkum?
When it does not snow in Sitkum?
How many hours of daylight does Sitkum have in September?
When are sunrise and sunset in September in Sitkum?
How long on average sun shines in September in Sitkum?
What is the UV index intensity in September in Sitkum?
Average temperature in September
Sitkum, OR
- Average high temperature in September: 70.5°F
The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is December (49.1°F).
- Average low temperature in September: 47.8°F
The month with the highest average low temperature is August (49.3°F).
The coldest month (with the lowest average low temperature) is February (37.4°F).
Average pressure in September
Sitkum, OR
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in September
Sitkum, OR
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is March (6.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Sitkum, OR
- Average humidity in September: 78%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are July, August and September (78%).
Average rainfall in September
Sitkum, OR
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is December (5.12").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in September
Sitkum, OR
- Average rainfall days in September: 6.7 days
The month with the highest number of rainy days is March (19.1 days).
The month with the least rainy days is August (3.3 days).
Average snowfall in September
Sitkum, OR
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Sitkum, OR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.7 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).
Average daylight in September /
Average sunshine in September
Sitkum, OR
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 36min).
Average sunshine days in September
Sitkum, OR
- Average sunshine days in September: 21.5 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is February (10.5 days).
Average UV index in September
Sitkum, 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
Sitkum, OR
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in September
Sitkum, OR
- Average visibility in September: 4mi
The months with the highest visibility are January, February, March, April, May, October, November and December (5mi).
The months with the lowest visibility are June, July, August and September (4mi).
Sitkum, Oregon, USA
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