September weather forecastBaker City, OR
September
Weather in September
September, the first month of the autumn in Baker City, is still a pleasant month, with temperature in the range of an average high of 71.2°F (21.8°C) and an average low of 47.3°F (8.5°C).Temperature
The shift from August to September involves a decrease in the average high-temperature, dropping from a warm 81.3°F (27.4°C) to a pleasant 71.2°F (21.8°C). September nights bring a pronounced temperature shift, with averages hovering around a frosty 47.3°F (8.5°C).Humidity
The average relative humidity in September is 47%.Rainfall
In Baker City, during September, the rain falls for 6.5 days and regularly aggregates up to 0.43" (11mm) of precipitation. Throughout the year, there are 113.5 rainfall days, and 12.56" (319mm) of precipitation is accumulated.Snowfall
In Baker City, snow does not fall in June through September.Daylight
In Baker City, the average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 6:14 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:49 am and sunset at 6:33 pm PDT.
Sunshine
In Baker City, the average sunshine in September is 10.7h.UV index
In Baker City, Oregon, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. 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. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Baker City, OR
- Average high temperature in September: 71.2°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (30.7°F).
- Average low temperature in September: 47.3°F
The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is December (18.5°F).
Average pressure in September
Baker City, OR
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in September
Baker City, OR
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are September and October (5.4mph).
Average humidity in September
Baker City, OR
- Average humidity in September: 47%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (40%).
Average rainfall in September
Baker City, OR
- Average rainfall in September: 0.43"
The wettest month (with the highest rainfall) is December (1.77").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in September
Baker City, OR
- Average rainfall days in September: 6.5 days
The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is August (4.4 days).
Average snowfall in September
Baker City, OR
- Average snowfall in September: 0"
The month with the highest snowfall is December (10.59").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Baker City, OR
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (14.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Baker City, OR
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 10h and 42min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in September
Baker City, OR
- Average sunshine days in September: 21.4 days
The month with the most sunshine days is July (22.7 days).
The months with the least sunshine days are February and March (11.3 days).
Average UV index in September
Baker City, OR
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Baker City, OR
- Average cloud cover in September: 15
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in September
Baker City, OR
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
