Average Weather in December in Santa Paula California, United States
In Santa Paula, the month of December is characterized by gradually falling daily high temperatures, with daily highs decreasing by 3°F, from 67°F to 64°F over the course of the month, and rarely exceeding 76°F or dropping below 55°F. The lowest daily average high temperature is 64°F on December 25.
Daily low temperatures are around 46°F, rarely falling below 37°F or exceeding 54°F. The lowest daily average low temperature is 45°F on December 20.
For reference, on August 23, the hottest day of the year, temperatures in Santa Paula typically range from 62°F to 84°F, while on December 18, the coldest day of the year, they range from 45°F to 64°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 Santa Paula experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 37% to 43%. The highest chance of overcast or mostly cloudy conditions is 43% on December 29.
The clearest day of the month is December 1, with clear, mostly clear, or partly cloudy conditions 63% of the time.
For reference, on February 20, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 45%, while on August 9, 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 Santa Paula, the chance of a wet day over the course of December is rapidly increasing, starting the month at 12% and ending it at 18%.
For reference, the year's highest daily chance of a wet day is 22% on February 20, and its lowest chance is 0% on July 29.
Probability of Precipitation in December
The average sliding 31-day rainfall during December in Santa Paula is rapidly increasing, starting the month at 1.6 inches, when it rarely exceeds 3.5 inches or falls below 0.1 inches, and ending the month at 2.7 inches, when it rarely exceeds 6.8 inches or falls below 0.1 inches.
Average Monthly Rainfall in December
Over the course of December in Santa Paula, the length of the day is essentially constant. The shortest day of the month is December 21, with 9 hours, 52 minutes of daylight and the longest day is December 1, with 10 hours, 2 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Santa Paula is 6:44 AM on December 1 and the latest sunrise is 18 minutes later at 7:02 AM on December 31.
The earliest sunset is 4:45 PM on December 4 and the latest sunset is 11 minutes later at 4:56 PM on December 31.
Daylight saving time is observed in Santa Paula 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 5:44 AM and sets 14 hours, 27 minutes later, at 8:11 PM, while on December 21, the shortest day of the year, it rises at 6:58 AM and sets 9 hours, 52 minutes later, at 4:50 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in December
The chance that a given day will be muggy in Santa Paula is essentially constant during December, remaining around 0% throughout.
For reference, on August 3, the muggiest day of the year, there are muggy conditions 1% 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 Santa Paula is essentially constant during December, remaining within 0.1 miles per hour of 4.3 miles per hour throughout.
For reference, on December 30, the windiest day of the year, the daily average wind speed is 4.4 miles per hour, while on August 8, the calmest day of the year, the daily average wind speed is 2.5 miles per hour.
The highest daily average wind speed during December is 4.4 miles per hour on December 30.
Average Wind Speed in December
Wind Direction in December
Santa Paula is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average surface water temperature in Santa Paula is gradually decreasing during December, falling by 2°F, from 61°F to 58°F, over the course of the month.
Average Water Temperature in December
The average daily incident shortwave solar energy in Santa Paula is essentially constant during December, remaining within 0.2 kWh of 3.0 kWh throughout.
The lowest average daily incident shortwave solar energy during December is 2.9 kWh on December 26.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Santa Paula are 34.354 deg latitude, -119.059 deg longitude, and 535 ft elevation.
The topography within 2 miles of Santa Paula contains very significant variations in elevation, with a maximum elevation change of 1,125 feet and an average elevation above sea level of 418 feet. Within 10 miles contains very significant variations in elevation (6,188 feet). Within 50 miles also contains extreme variations in elevation (8,822 feet).
The area within 2 miles of Santa Paula is covered by cropland (45%), artificial surfaces (32%), shrubs (13%), and grassland (10%), within 10 miles by shrubs (36%) and cropland (31%), and within 50 miles by shrubs (37%) and water (33%).
This report illustrates the typical weather in Santa Paula 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 Santa Paula.
For each station, the records are corrected for the elevation difference between that station and Santa Paula 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 Santa Paula is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Santa Paula and a given station.
Time zones for aiports and weather stations are provided by AskGeo.com .