December Weather at Manuel Crescencio Rejón International Airport Mexico

Daily high temperatures are around 85°F, rarely falling below 77°F or exceeding 92°F.

Daily low temperatures are around 67°F, rarely falling below 57°F or exceeding 73°F.

For reference, on May 9, the hottest day of the year, temperatures at Manuel Crescencio Rejón International Airport typically range from 74°F to 97°F, while on January 15, the coldest day of the year, they range from 65°F to 85°F.

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.

São Paulo do Potengi, Brazil (4,101 miles away) and Kisanga, Tanzania (8,817 miles) are the far-away foreign places with temperatures most similar to Manuel Crescencio Rejón International Airport (view comparison).

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The month of December at Manuel Crescencio Rejón International Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 33% throughout the month.

The clearest day of the month is December 24, with clear, mostly clear, or partly cloudy conditions 68% of the time.

For reference, on September 11, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 74%, while on February 24, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 77%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Manuel Crescencio Rejón International Airport, the chance of a wet day over the course of December is essentially constant, remaining around 13% throughout.

For reference, the year's highest daily chance of a wet day is 58% on September 10, and its lowest chance is 8% on March 2.

Rainfall

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 December at Manuel Crescencio Rejón International Airport is essentially constant, remaining about 1.1 inches throughout, and rarely exceeding 3.2 inches or falling below 0.1 inches.

Over the course of December at Manuel Crescencio Rejón International Airport, the length of the day is essentially constant. The shortest day of the month is December 20, with 10 hours, 52 minutes of daylight and the longest day is December 1, with 10 hours, 57 minutes of daylight.

The earliest sunrise of the month at Manuel Crescencio Rejón International Airport is 6:19 AM on December 1 and the latest sunrise is 16 minutes later at 6:35 AM on December 31.

The earliest sunset is 5:16 PM on December 1 and the latest sunset is 12 minutes later at 5:28 PM on December 31.

Daylight saving time is not observed at Manuel Crescencio Rejón International Airport during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:18 AM and sets 13 hours, 24 minutes later, at 6:42 PM, while on December 21, the shortest day of the year, it rises at 6:31 AM and sets 10 hours, 52 minutes later, at 5:22 PM.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

The figure below presents a compact representation of key lunar data for December 2024. 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.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The chance that a given day will be muggy at Manuel Crescencio Rejón International Airport is decreasing during December, falling from 66% to 57% over the course of the month.

For reference, on September 10, the muggiest day of the year, there are muggy conditions 100% of the time, while on January 30, the least muggy day of the year, there are muggy conditions 48% of the time.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed at Manuel Crescencio Rejón International Airport is essentially constant during December, remaining around 4.4 miles per hour throughout.

For reference, on April 3, the windiest day of the year, the daily average wind speed is 5.2 miles per hour, while on September 9, the calmest day of the year, the daily average wind speed is 3.6 miles per hour.

The hourly average wind direction at Manuel Crescencio Rejón International Airport throughout December is predominantly from the east, with a peak proportion of 58% on December 29.

Manuel Crescencio Rejón International Airport 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 at Manuel Crescencio Rejón International Airport is gradually decreasing during December, falling by 2°F, from 77°F to 75°F, over the course of the month.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Temperatures at Manuel Crescencio Rejón International Airport 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.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days at Manuel Crescencio Rejón International Airport are rapidly increasing during December, increasing by 742°F, from 9,583°F to 10,325°F, over the course of the month.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy at Manuel Crescencio Rejón International Airport is essentially constant during December, remaining within 0.1 kWh of 4.5 kWh throughout.

The lowest average daily incident shortwave solar energy during December is 4.4 kWh on December 29.

For the purposes of this report, the geographical coordinates of Manuel Crescencio Rejón International Airport are 20.937 deg latitude, -89.658 deg longitude, and 10 ft elevation.

The topography within 2 miles of Manuel Crescencio Rejón International Airport is essentially flat, with a maximum elevation change of 92 feet and an average elevation above sea level of 38 feet. Within 10 miles is essentially flat (174 feet). Within 50 miles contains only modest variations in elevation (574 feet).

The area within 2 miles of Manuel Crescencio Rejón International Airport is covered by artificial surfaces (80%) and cropland (20%), within 10 miles by cropland (67%) and artificial surfaces (20%), and within 50 miles by cropland (40%) and trees (27%).