September weather forecastBiggs Junction, OR
September
Weather in September
September, the first month of the autumn in Biggs Junction, is also an agreeable month, with temperature in the range of an average low of 52.7°F (11.5°C) and an average high of 73.2°F (22.9°C).Temperature
The average high-temperature drops in September, from August's moderately hot 83.3°F (28.5°C) to an agreeable 73.2°F (22.9°C). Biggs Junction experiences an average low-temperature of 52.7°F (11.5°C) in month of September.Humidity
The average relative humidity in September is 54%.Rainfall
In Biggs Junction, in September, during 5.8 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. Throughout the year, there are 112.2 rainfall days, and 10.91" (277mm) of precipitation is accumulated.Snowfall
In Biggs Junction, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:25 am and sunset at 7:40 pm. On the last day of September, in Biggs Junction, sunrise is at 7:01 am and sunset at 6:44 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 estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, an average UV index of 4 transforms into the following instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Biggs Junction, OR
- Average high temperature in September: 73.2°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is December (37.4°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is August (57.9°F).
The coldest month (with the lowest average low temperature) is December (27°F).
Average pressure in September
Biggs Junction, OR
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.95"Hg).
Average wind speed in September
Biggs Junction, OR
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is June (7.9mph).
The calmest months (with the lowest average wind speed) are January and December (5mph).
Average humidity in September
Biggs Junction, OR
- Average humidity in September: 54%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (46%).
Average rainfall in September
Biggs Junction, OR
- Average rainfall in September: 0.35"
The wettest month (with the highest rainfall) is January (1.93").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in September
Biggs Junction, OR
- Average rainfall days in September: 5.8 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is July (2.9 days).
Average snowfall in September
Biggs Junction, OR
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Biggs Junction, OR
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and December (3.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Biggs Junction, OR
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 10h and 48min
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 0min).
Average sunshine days in September
Biggs Junction, OR
- Average sunshine days in September: 22.3 days
The month with the most sunshine days is July (27 days).
The month with the least sunshine days is February (12.3 days).
Average UV index in September
Biggs Junction, OR
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Biggs Junction, OR
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in September
Biggs Junction, OR
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
