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
In September, the meteorological conditions alter, with the average high-temperature shifting from 85.6°F (29.8°C) in August to a still moderately hot 75.2°F (24°C). In September, Arock's temperature tends to fall to an average low of 55.4°F (13°C) during the night.Humidity
In Arock, Oregon, the average relative humidity in September is 32%.Rainfall
In September, the rain falls for 4.7 days. Throughout September, 0.35" (9mm) of precipitation is accumulated. In Arock, during the entire year, the rain falls for 101.4 days and collects up to 10.08" (256mm) of precipitation.Snowfall
In Arock, snow does not fall in June through September.Daylight
In Arock, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 7:15 am and sunset at 8:24 pm. On the last day of September, in Arock, sunrise is at 7:47 am and sunset at 7:32 pm MDT.
Sunshine
The average sunshine in September is 9.6h.UV index
In September, the average daily maximum UV index in Arock is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Frequently asked questions
What is the average September temperature in Arock?
What is the average humidity in September in Arock?
How much does it rain in Arock in September?
When it does not snow in Arock?
Does it snow in Arock in September?
How many hours of daylight does Arock have in September?
When is the sunrise / sunset in September in Arock?
How long on average sun shines in September in Arock?
What is the UV index reading in September in Arock?
Average temperature in September
Arock, OR
- Average high temperature in September: 75.2°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is December (34.3°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is August (64.6°F).
The coldest month (with the lowest average low temperature) is December (22.8°F).
Average pressure in September
Arock, OR
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are June, July and August (29.91"Hg).
Average wind speed in September
Arock, OR
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest months (with the lowest average wind speed) are January and August (6.3mph).
Average humidity in September
Arock, OR
- Average humidity in September: 32%
The months with the highest relative humidity are January and December (77%).
The months with the lowest relative humidity are July and August (25%).
Average rainfall in September
Arock, OR
- Average rainfall in September: 0.35"
The wettest month (with the highest rainfall) is March (1.46").
The driest months (with the least rainfall) are July and August (0.16").
Average rainfall days in September
Arock, OR
- Average rainfall days in September: 4.7 days
The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is July (2.6 days).
Average snowfall in September
Arock, OR
- Average snowfall in September: 0"
The month with the highest snowfall is December (6.34").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Arock, OR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Arock, 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 July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in September
Arock, OR
- Average sunshine days in September: 23.5 days
The month with the most sunshine days is July (26.6 days).
The month with the least sunshine days is March (12.3 days).
Average UV index in September
Arock, OR
- Average UV index in September: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Arock, OR
- Average cloud cover in September: 13
The month with the most cloud cover is December (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in September
Arock, OR
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Arock, Oregon, USA
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