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
Stepping into September, Boardman observes a temperature decline, with the average high falling from August's tropical 87.1°F (30.6°C) to a warm 76.3°F (24.6°C). During the month of September, the temperature generally drops to a low average of 57.4°F (14.1°C).Humidity
In Boardman, the average relative humidity in September is 44%.Rainfall
In Boardman, in September, during 5 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. Throughout the year, there are 102.3 rainfall days, and 7.09" (180mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, September, November and December. September is the first month it typically snows in Boardman. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Boardman, during the entire year, snow falls for 10 days and aggregates up to 5.28" (134mm) of snow.Daylight
The average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:20 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:40 pm PDT.
Sunshine
The average sunshine in September is 10.8h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Make use of precautions - It is urged to ward off sun damage. To guard against the harmful effects of the Sun, minimize exposure during midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
What are the temperatures in Boardman in September?
What is the average humidity in September in Boardman?
How many days does it rain in September in Boardman?
When does it start to snow in Boardman?
How many hours of daylight does Boardman have in September?
What time are sunrise and sunset in September in Boardman?
How long on average sun shines in September in Boardman?
What is the UV index reading in September in Boardman?
Average temperature in September
Boardman, OR
- Average high temperature in September: 76.3°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is December (38.7°F).
- Average low temperature in September: 57.4°F
The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is December (29.1°F).
Average pressure in September
Boardman, OR
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in September
Boardman, OR
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is December (6.3mph).
Average humidity in September
Boardman, OR
- Average humidity in September: 44%
The month with the highest relative humidity is January (80%).
The months with the lowest relative humidity are July and August (37%).
Average rainfall in September
Boardman, OR
- Average rainfall in September: 0.31"
The wettest month (with the highest rainfall) is January (0.98").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in September
Boardman, OR
- Average rainfall days in September: 5 days
The month with the highest number of rainy days is March (12.7 days).
The month with the least rainy days is July (3.8 days).
Average snowfall in September
Boardman, OR
- Average snowfall in September: 0.04"
The month with the highest snowfall is February (2.05").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in September
Boardman, OR
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (3.3 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in September /
Average sunshine in September
Boardman, OR
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 10h and 5min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in September
Boardman, OR
- Average sunshine days in September: 22.8 days
The month with the most sunshine days is July (25.6 days).
The month with the least sunshine days is February (14.7 days).
Average UV index in September
Boardman, 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
Boardman, OR
- Average cloud cover in September: 16
The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in September
Boardman, 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).
Boardman, Oregon, USA
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