Average Weather in December in Plumas Lake California, United States
In Plumas Lake, the month of December is characterized by falling daily high temperatures, with daily highs decreasing by 5°F, from 59°F to 54°F over the course of the month, and rarely exceeding 65°F or dropping below 47°F. The lowest daily average high temperature is 54°F on December 28.
Daily low temperatures decrease by 3°F, from 41°F to 38°F, rarely falling below 30°F or exceeding 51°F. The lowest daily average low temperature is 38°F on December 31.
For reference, on July 19, the hottest day of the year, temperatures in Plumas Lake typically range from 62°F to 96°F, while on December 31, the coldest day of the year, they range from 38°F to 54°F.
Average High and Low Temperature in December
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on December. 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 December
The month of December in Plumas Lake experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 54% throughout the month.
The clearest day of the month is December 8, with clear, mostly clear, or partly cloudy conditions 48% of the time.
For reference, on January 11, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 57%, while on July 20, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 91%.
Cloud Cover in December
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Plumas Lake, the chance of a wet day over the course of December is essentially constant, remaining around 30% throughout.
For reference, the year's highest daily chance of a wet day is 33% on February 28, and its lowest chance is 0% on July 28.
Probability of Precipitation in December
The average sliding 31-day rainfall during December in Plumas Lake is increasing, starting the month at 4.4 inches, when it rarely exceeds 8.4 inches or falls below 0.9 inches, and ending the month at 4.9 inches, when it rarely exceeds 10.2 inches or falls below 0.4 inches.
The highest average 31-day accumulation is 4.9 inches on December 29.
Average Monthly Rainfall in December
Over the course of December in Plumas Lake, the length of the day is essentially constant. The shortest day of the month is December 21, with 9 hours, 26 minutes of daylight and the longest day is December 1, with 9 hours, 38 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Plumas Lake is 7:06 AM on December 1 and the latest sunrise is 19 minutes later at 7:25 AM on December 31.
The earliest sunset is 4:43 PM on December 7 and the latest sunset is 10 minutes later at 4:53 PM on December 31.
Daylight saving time is observed in Plumas Lake during 2017, but it neither starts nor ends during December, so the entire month is in standard time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:40 AM and sets 14 hours, 55 minutes later, at 8:35 PM, while on December 21, the shortest day of the year, it rises at 7:21 AM and sets 9 hours, 26 minutes later, at 4:47 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in December
The chance that a given day will be muggy in Plumas Lake is essentially constant during December, remaining around 0% throughout.
For reference, on July 9, the muggiest day of the year, there are muggy conditions 0% of the time, while on October 11, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in December
The average hourly wind speed in Plumas Lake is essentially constant during December, remaining within 0.1 miles per hour of 3.4 miles per hour throughout.
For reference, on February 20, the windiest day of the year, the daily average wind speed is 3.5 miles per hour, while on September 24, the calmest day of the year, the daily average wind speed is 2.8 miles per hour.
The highest daily average wind speed during December is 3.5 miles per hour on December 14.
Average Wind Speed in December
Wind Direction in December
The average daily incident shortwave solar energy in Plumas Lake is essentially constant during December, remaining within 0.1 kWh of 2.1 kWh throughout.
The lowest average daily incident shortwave solar energy during December is 2.0 kWh on December 21.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Plumas Lake are 39.021 deg latitude, -121.558 deg longitude, and 46 ft elevation.
The topography within 2 miles of Plumas Lake is essentially flat, with a maximum elevation change of 33 feet and an average elevation above sea level of 45 feet. Within 10 miles is essentially flat (125 feet). Within 50 miles contains only modest variations in elevation (5,551 feet).
The area within 2 miles of Plumas Lake is covered by cropland (83%), within 10 miles by cropland (83%), and within 50 miles by cropland (37%) and grassland (24%).
This report illustrates the typical weather in Plumas Lake 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 Plumas Lake.
For each station, the records are corrected for the elevation difference between that station and Plumas Lake 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 Plumas Lake is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Plumas Lake and a given station.
The stations contributing to this reconstruction are: Yuba County Airport (72%, 9 kilometers, north); Lincoln Regional Airport (19%, 22 kilometers, southeast); and Sacramento International Airport (9%, 36 kilometers, south).
Time zones for aiports and weather stations are provided by AskGeo.com .