Average Weather in December in Olinalá Mexico
Daily high temperatures are around 79°F, rarely falling below 75°F or exceeding 84°F.
Daily low temperatures are around 49°F, rarely falling below 43°F or exceeding 55°F.
For reference, on April 19, the hottest day of the year, temperatures in Olinalá typically range from 56°F to 88°F, while on January 14, the coldest day of the year, they range from 48°F to 79°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 Olinalá experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 43% throughout the month.
The clearest day of the month is December 14, with clear, mostly clear, or partly cloudy conditions 58% of the time.
For reference, on June 30, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 90%, while on February 24, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 70%.
Cloud Cover Categories in December
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Olinalá, the chance of a wet day over the course of December is essentially constant, remaining around 2% throughout.
For reference, the year's highest daily chance of a wet day is 76% on August 26, and its lowest chance is 2% on December 8.
Probability of Precipitation in December
The average sliding 31-day rainfall during December in Olinalá is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.6 inches.
The lowest average 31-day accumulation is 0.1 inches on December 11.
Average Monthly Rainfall in December
Over the course of December in Olinalá, the length of the day is essentially constant. The shortest day of the month is December 22, with 11 hours, 4 minutes of daylight and the longest day is December 1, with 11 hours, 8 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Olinalá is 6:49 AM on December 1 and the latest sunrise is 16 minutes later at 7:05 AM on December 31.
The earliest sunset is 5:58 PM on December 1 and the latest sunset is 12 minutes later at 6:10 PM on December 31.
Daylight saving time is observed in Olinalá during 2021, 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 7:00 AM and sets 13 hours, 12 minutes later, at 8:12 PM, while on December 21, the shortest day of the year, it rises at 7:01 AM and sets 11 hours, 4 minutes later, at 6:05 PM.
Sunrise & Sunset with Twilight in December
The figure below presents a compact representation of key lunar data for December 2021. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.
Moon Rise, Set & Phases in December
The chance that a given day will be muggy in Olinalá is essentially constant during December, remaining around 0% throughout.
For reference, on June 21, the muggiest day of the year, there are muggy conditions 19% of the time, while on January 4, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in December
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Olinalá is essentially constant during December, remaining within 0.1 miles per hour of 4.8 miles per hour throughout.
For reference, on March 25, the windiest day of the year, the daily average wind speed is 5.8 miles per hour, while on September 15, the calmest day of the year, the daily average wind speed is 3.9 miles per hour.
Average Wind Speed in December
The hourly average wind direction in Olinalá throughout December is predominantly from the east, with a peak proportion of 58% on December 1.
Wind Direction in December
Temperatures in Olinalá are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.
Time Spent in Various Temperature Bands and the Growing Season in December
The average accumulated growing degree days in Olinalá are increasing during December, increasing by 400°F, from 5,908°F to 6,307°F, over the course of the month.
Growing Degree Days in December
The average daily incident shortwave solar energy in Olinalá is essentially constant during December, remaining within 0.1 kWh of 5.0 kWh throughout.
The lowest average daily incident shortwave solar energy during December is 5.0 kWh on December 23.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Olinalá are 17.779 deg latitude, -98.739 deg longitude, and 4,393 ft elevation.
The topography within 2 miles of Olinalá contains very significant variations in elevation, with a maximum elevation change of 1,371 feet and an average elevation above sea level of 4,573 feet. Within 10 miles contains very significant variations in elevation (4,462 feet). Within 50 miles also contains extreme variations in elevation (8,612 feet).
The area within 2 miles of Olinalá is covered by cropland (55%) and shrubs (40%), within 10 miles by shrubs (60%) and cropland (29%), and within 50 miles by shrubs (37%) and trees (37%).
This report illustrates the typical weather in Olinalá, 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 is only a single weather station, General Juan N. Álvarez International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Olinalá.
At a distance of 157 kilometers from Olinalá, further than our threshold of 150 kilometers, this station is deemed insufficiently nearby to be relied upon as our primary source for temperature and dew point records. Consequently, the station records are blended with interpolated values from NASA's MERRA-2 satellite-era reanalysis , and both are corrected for elevation differences according to the International Standard Atmosphere .
The weight assigned to the MERRA-2 value depends on the distance from Olinalá to the nearest station, increasing from 0% at 150 kilometers to 100% at 200 kilometers. In this case, the MERRA-2 weight is 12%, making the weight assigned to the weather station 88%.
Time zones for airports and weather stations are provided by AskGeo.com .