Average Weather in December in Pollock Pines California, United States
Daily high temperatures are around 51°F, rarely falling below 39°F or exceeding 62°F. The lowest daily average high temperature is 50°F on December 22.
Daily low temperatures decrease by 2°F, from 39°F to 37°F, rarely falling below 28°F or exceeding 48°F. The lowest daily average low temperature is 37°F on December 23.
For reference, on July 28, the hottest day of the year, temperatures in Pollock Pines typically range from 64°F to 85°F, while on December 23, the coldest day of the year, they range from 37°F to 50°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 Pollock Pines experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 56% throughout the month.
The clearest day of the month is December 8, with clear, mostly clear, or partly cloudy conditions 46% of the time.
For reference, on February 21, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 60%, 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 December
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Pollock Pines, the chance of a wet day over the course of December is essentially constant, remaining around 31% throughout.
For reference, the year's highest daily chance of a wet day is 36% on February 21, and its lowest chance is 1% on July 21.
Over the course of December in Pollock Pines, the chance of a day with only rain decreases from 28% to 24%, the chance of a day with mixed snow and rain increases from 2% to 5%, and the chance of a day with only snow remains an essentially constant 1% throughout.
Probability of Precipitation in December
The average sliding 31-day rainfall during December in Pollock Pines is gradually increasing, starting the month at 5.0 inches, when it rarely exceeds 9.8 inches or falls below 1.0 inches, and ending the month at 5.3 inches, when it rarely exceeds 11.7 inches or falls below 0.4 inches.
The highest average 31-day accumulation is 5.4 inches on December 20.
Average Monthly Rainfall in December
We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. As with rainfall, we consider the liquid-equivalent snowfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day liquid-equivalent snowfall during December in Pollock Pines is essentially constant, remaining about 0.2 inches throughout, and rarely exceeding 1.1 inches or falling below -0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in December
Over the course of December in Pollock Pines, the length of the day is essentially constant. The shortest day of the month is December 21, with 9 hours, 27 minutes of daylight and the longest day is December 1, with 9 hours, 39 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Pollock Pines is 7:01 AM on December 1 and the latest sunrise is 19 minutes later at 7:20 AM on December 31.
The earliest sunset is 4:40 PM on December 7 and the latest sunset is 10 minutes later at 4:50 PM on December 31.
Daylight saving time is observed in Pollock Pines during 2018, 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 5:37 AM and sets 14 hours, 53 minutes later, at 8:30 PM, while on December 21, the shortest day of the year, it rises at 7:17 AM and sets 9 hours, 27 minutes later, at 4:44 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in December
The chance that a given day will be muggy in Pollock Pines is essentially constant during December, remaining around 0% throughout.
For reference, on August 22, 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 December
The average hourly wind speed in Pollock Pines is essentially constant during December, remaining within 0.1 miles per hour of 6.0 miles per hour throughout.
For reference, on December 23, the windiest day of the year, the daily average wind speed is 6.1 miles per hour, while on May 20, the calmest day of the year, the daily average wind speed is 5.2 miles per hour.
The highest daily average wind speed during December is 6.1 miles per hour on December 24.
Average Wind Speed in December
Wind Direction in December
The growing season in Pollock Pines typically lasts for 7.3 months (224 days), from around April 13 to around November 23, rarely starting before March 8 or after May 7, and rarely ending before November 1 or after December 18.
The month of December in Pollock Pines is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season rapidly decreasing from 34% to 3% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in December
The average accumulated growing degree days in Pollock Pines are essentially constant during December, remaining within 13°F of 3,422°F throughout.
Growing Degree Days in December
The average daily incident shortwave solar energy in Pollock Pines is essentially constant during December, remaining within 0.1 kWh of 2.3 kWh throughout.
The lowest average daily incident shortwave solar energy during December is 2.1 kWh on December 19.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Pollock Pines are 38.761 deg latitude, -120.589 deg longitude, and 3,527 ft elevation.
The topography within 2 miles of Pollock Pines contains large variations in elevation, with a maximum elevation change of 2,303 feet and an average elevation above sea level of 3,597 feet. Within 10 miles contains large variations in elevation (4,678 feet). Within 50 miles also contains extreme variations in elevation (10,850 feet).
The area within 2 miles of Pollock Pines is covered by trees (92%), within 10 miles by trees (72%) and shrubs (26%), and within 50 miles by trees (44%) and shrubs (25%).
This report illustrates the typical weather in Pollock Pines 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 Pollock Pines.
For each station, the records are corrected for the elevation difference between that station and Pollock Pines 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 Pollock Pines is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Pollock Pines and a given station.
The stations contributing to this reconstruction are: Placerville Airport (69%, 15 kilometers, west); Lake Tahoe Airport (13%, 54 kilometers, east); and Blue Canyon-Nyack Airport (18%, 58 kilometers, north).
Time zones for aiports and weather stations are provided by AskGeo.com .