Average Weather in September in Baker City Oregon, United States
Daily high temperatures decrease by 11°F, from 81°F to 69°F, rarely falling below 56°F or exceeding 90°F.
Daily low temperatures decrease by 8°F, from 44°F to 36°F, rarely falling below 28°F or exceeding 52°F.
For reference, on July 31, the hottest day of the year, temperatures in Baker City typically range from 50°F to 87°F, while on January 1, the coldest day of the year, they range from 18°F to 32°F.
Average High and Low Temperature in September
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on September. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature in September
Kratovo, Macedonia (5,954 miles away); Çayıralan, Turkey (6,405 miles); and Fareydūnshahr, Iran (7,022 miles) are the far-away foreign places with temperatures most similar to Baker City (view comparison).
The month of September in Baker City experiences rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 24% to 36%.
The clearest day of the month is September 1, with clear, mostly clear, or partly cloudy conditions 76% of the time.
For reference, on January 10, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 66%, while on July 29, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 84%.
Cloud Cover Categories in September
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Baker City, the chance of a wet day over the course of September is gradually increasing, starting the month at 8% and ending it at 11%.
For reference, the year's highest daily chance of a wet day is 29% on December 16, and its lowest chance is 5% on July 29.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Baker City is essentially constant, remaining about 0.5 inches throughout, and rarely exceeding 1.4 inches.
Average Monthly Rainfall in September
Over the course of September in Baker City, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 29 minutes, implying an average daily decrease of 3 minutes, 4 seconds, and weekly decrease of 21 minutes, 27 seconds.
The shortest day of the month is September 30, with 11 hours, 45 minutes of daylight and the longest day is September 1, with 13 hours, 14 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Baker City is 6:13 AM on September 1 and the latest sunrise is 34 minutes later at 6:48 AM on September 30.
The latest sunset is 7:27 PM on September 1 and the earliest sunset is 54 minutes earlier at 6:33 PM on September 30.
Daylight saving time is observed in Baker City during 2018, but it neither starts nor ends during September, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:05 AM and sets 15 hours, 35 minutes later, at 8:40 PM, while on December 21, the shortest day of the year, it rises at 7:25 AM and sets 8 hours, 48 minutes later, at 4:13 PM.
Sunrise & Sunset with Twilight in September
The chance that a given day will be muggy in Baker City is essentially constant during September, remaining around 0% throughout.
For reference, on June 25, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in September
The average hourly wind speed in Baker City is essentially constant during September, remaining within 0.1 miles per hour of 5.1 miles per hour throughout.
For reference, on April 10, the windiest day of the year, the daily average wind speed is 6.1 miles per hour, while on September 8, the calmest day of the year, the daily average wind speed is 5.1 miles per hour.
The lowest daily average wind speed during September is 5.1 miles per hour on September 8.
Average Wind Speed in September
Wind Direction in September
The growing season in Baker City typically lasts for 3.6 months (110 days), from around May 27 to around September 14, rarely starting before May 7 or after June 16, and rarely ending before August 28 or after October 2.
During September in Baker City, the chance that a given day is within the growing season is very rapidly decreasing falling from 83% to 13% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in September
The average accumulated growing degree days in Baker City are increasing during September, increasing by 272°F, from 1,609°F to 1,881°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Baker City is rapidly decreasing during September, falling by 1.7 kWh, from 6.1 kWh to 4.4 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in September
For the purposes of this report, the geographical coordinates of Baker City are 44.775 deg latitude, -117.834 deg longitude, and 3,514 ft elevation.
The topography within 2 miles of Baker City contains very significant variations in elevation, with a maximum elevation change of 1,066 feet and an average elevation above sea level of 3,561 feet. Within 10 miles contains very significant variations in elevation (4,820 feet). Within 50 miles also contains extreme variations in elevation (8,064 feet).
The area within 2 miles of Baker City is covered by shrubs (45%), artificial surfaces (27%), cropland (15%), and grassland (13%), within 10 miles by shrubs (54%) and cropland (24%), and within 50 miles by shrubs (55%) and trees (31%).
This report illustrates the typical weather in Baker City year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Baker City.
For each station, the records are corrected for the elevation difference between that station and Baker City according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Baker City is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Baker City and a given station.
The stations contributing to this reconstruction are: Baker Municipal Airport (95%, 8 kilometers, north); John Day State Airport (2.7%, 99 kilometers, southwest); and Ontario Municipal Airport (2.2%, 106 kilometers, southeast).
Time zones for aiports and weather stations are provided by AskGeo.com .