Average Weather in September in Auburn Lake Trails California, United States
Daily low temperatures decrease by 6°F, from 64°F to 58°F, rarely falling below 48°F or exceeding 72°F.
For reference, on July 28, the hottest day of the year, temperatures in Auburn Lake Trails typically range from 67°F to 92°F, while on December 30, the coldest day of the year, they range from 39°F to 54°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
Nerva, Spain (5,710 miles away); Escatrón, Spain (5,762 miles); and Constantine, Algeria (6,263 miles) are the far-away foreign places with temperatures most similar to Auburn Lake Trails (view comparison).
The month of September in Auburn Lake Trails experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 12% to 22%.
The clearest day of the month is September 1, with clear, mostly clear, or partly cloudy conditions 88% of the time.
For reference, on February 21, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 59%, while on July 29, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 90%.
Cloud Cover Categories in September
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Auburn Lake Trails, the chance of a wet day over the course of September is increasing, starting the month at 2% and ending it at 7%.
For reference, the year's highest daily chance of a wet day is 35% on February 20, and its lowest chance is 0% on July 21.
Probability of Precipitation in September
To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day rainfall during September in Auburn Lake Trails is increasing, starting the month at 0.2 inches, when it rarely exceeds 0.6 inches or falls below -0.0 inches, and ending the month at 0.8 inches, when it rarely exceeds 2.3 inches.
Average Monthly Rainfall in September
Over the course of September in Auburn Lake Trails, 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, 12 minutes, implying an average daily decrease of 2 minutes, 29 seconds, and weekly decrease of 17 minutes, 26 seconds.
The shortest day of the month is September 30, with 11 hours, 49 minutes of daylight and the longest day is September 1, with 13 hours, 1 minute of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Auburn Lake Trails is 6:32 AM on September 1 and the latest sunrise is 26 minutes later at 6:58 AM on September 30.
The latest sunset is 7:33 PM on September 1 and the earliest sunset is 46 minutes earlier at 6:47 PM on September 30.
Daylight saving time is observed in Auburn Lake Trails 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 5:38 AM and sets 14 hours, 54 minutes later, at 8:32 PM, while on December 21, the shortest day of the year, it rises at 7:18 AM and sets 9 hours, 26 minutes later, at 4:45 PM.
Sunrise & Sunset with Twilight in September
The chance that a given day will be muggy in Auburn Lake Trails is essentially constant during September, remaining around 0% throughout.
For reference, on September 10, 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 Auburn Lake Trails is essentially constant during September, remaining within 0.1 miles per hour of 5.3 miles per hour throughout.
For reference, on December 18, the windiest day of the year, the daily average wind speed is 6.2 miles per hour, while on September 24, the calmest day of the year, the daily average wind speed is 5.2 miles per hour.
The lowest daily average wind speed during September is 5.2 miles per hour on September 24.
Average Wind Speed in September
Wind Direction in September
The growing season in Auburn Lake Trails typically lasts for 11 months (340 days), from around January 14 to around December 21, rarely starting after March 18, or ending before November 23.
The month of September in Auburn Lake Trails is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in September
The average accumulated growing degree days in Auburn Lake Trails are rapidly increasing during September, increasing by 630°F, from 3,208°F to 3,838°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Auburn Lake Trails is rapidly decreasing during September, falling by 1.6 kWh, from 6.8 kWh to 5.3 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 Auburn Lake Trails are 38.914 deg latitude, -120.952 deg longitude, and 1,644 ft elevation.
The topography within 2 miles of Auburn Lake Trails contains very significant variations in elevation, with a maximum elevation change of 1,578 feet and an average elevation above sea level of 1,567 feet. Within 10 miles contains very significant variations in elevation (2,887 feet). Within 50 miles contains large variations in elevation (9,911 feet).
The area within 2 miles of Auburn Lake Trails is covered by shrubs (44%), trees (35%), and grassland (21%), within 10 miles by shrubs (45%) and trees (33%), and within 50 miles by trees (38%) and grassland (19%).
This report illustrates the typical weather in Auburn Lake Trails 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Auburn Lake Trails.
For each station, the records are corrected for the elevation difference between that station and Auburn Lake Trails 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 Auburn Lake Trails is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Auburn Lake Trails and a given station.
Time zones for aiports and weather stations are provided by AskGeo.com .