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
Boardman's average high-temperature decreases in September, falling from a hot 87.1°F (30.6°C) in August to a warm 76.3°F (24.6°C). In the month of September, the average temperature dips to a refreshing 57.4°F (14.1°C) during the night.Humidity
In September, the average relative humidity is 44%.Rainfall
In Boardman, in September, it is raining for 5 days, with typically 0.31" (8mm) of accumulated precipitation. Throughout the year, there are 102.3 rainfall days, and 7.09" (180mm) of precipitation is accumulated.Snowfall
January through March, September, November and December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 10 snowfall days, and 5.28" (134mm) of snow is accumulated.Daylight
In Boardman, 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
In September, the average sunshine is 10.8h.UV index
In Boardman, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 4 during September leads to these advisories:
Adopt protective measures - Suggestions to resist sunburn are offered. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September in Boardman?
How much does it rain in September?
When does it start to snow?
How many hours of daylight does Boardman have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Boardman have in September?
What is the UV index reading in September?
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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