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December Weather at Cotopaxi International Airport Ecuador

Daily high temperatures are around 66°F, rarely falling below 62°F or exceeding 71°F.

Daily low temperatures are around 48°F, rarely falling below 44°F or exceeding 51°F. The highest daily average low temperature is 49°F on December 30.

For reference, on November 15, the hottest day of the year, temperatures at Cotopaxi International Airport typically range from 48°F to 67°F, while on September 3, the coldest day of the year, they range from 45°F to 63°F.

Average High and Low Temperature in December at Cotopaxi International Airport

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

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 at Cotopaxi International Airport

Average Hourly Temperature in December at Cotopaxi International AirportDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNovJancoldcoldcoolcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Carmel-by-the-Sea, California, United States (3,797 miles away) and Natubleng, Philippines (10,736 miles) are the far-away foreign places with temperatures most similar to Cotopaxi International Airport (view comparison).

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Marker
© Esri, et al.

Compare Cotopaxi International Airport to another city:

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The month of December at Cotopaxi International Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 84% throughout the month.

The clearest day of the month is December 26, with clear, mostly clear, or partly cloudy conditions 17% of the time.

For reference, on March 3, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 90%, while on July 31, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 51%.

Cloud Cover Categories in December at Cotopaxi International Airport

Cloud Cover Categories in December at Cotopaxi International AirportDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%NovJanDec 115%Dec 115%Dec 3117%Dec 3117%Dec 1116%Dec 1116%Dec 2117%Dec 2117%partly cloudymostly cloudyovercastmostly clear
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Cotopaxi International Airport, the chance of a wet day over the course of December is gradually increasing, starting the month at 48% and ending it at 52%.

For reference, the year's highest daily chance of a wet day is 75% on April 10, and its lowest chance is 22% on August 7.

Probability of Precipitation in December at Cotopaxi International Airport

Probability of Precipitation in December at Cotopaxi International AirportDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%NovJanDec 148%Dec 148%Dec 3152%Dec 3152%Dec 1150%Dec 1150%Dec 2149%Dec 2149%rain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

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 Cotopaxi International Airport is essentially constant, remaining about 3.0 inches throughout, and rarely exceeding 5.1 inches or falling below 0.8 inches.

Average Monthly Rainfall in December at Cotopaxi International Airport

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.

Over the course of December at Cotopaxi International Airport, the length of the day is essentially constant. The shortest day of the month is December 1, with 12 hours, 10 minutes of daylight and the longest day is December 22, with 12 hours, 11 minutes of daylight.

Hours of Daylight and Twilight in December at Cotopaxi International Airport

Hours of Daylight and Twilight in December at Cotopaxi International AirportDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrNovJanDec 2112 hr, 11 minDec 2112 hr, 11 mindaydaydaydaynightDec 112 hr, 10 minDec 112 hr, 10 min
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise of the month at Cotopaxi International Airport is 5:58 AM on December 1 and the latest sunrise is 14 minutes later at 6:12 AM on December 31.

The earliest sunset is 6:08 PM on December 1 and the latest sunset is 14 minutes later at 6:22 PM on December 31.

Daylight saving time is not observed at Cotopaxi International Airport during 2022.

For reference, on December 21, the longest day of the year, the Sun rises at 6:07 AM and sets 12 hours, 11 minutes later, at 6:17 PM, while on June 21, the shortest day of the year, it rises at 6:14 AM and sets 12 hours, 4 minutes later, at 6:18 PM.

Sunrise & Sunset with Twilight in December at Cotopaxi International Airport

Sunrise & Sunset with Twilight in December at Cotopaxi International AirportDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMNovJan5:58 AM5:58 AMDec 16:08 PMDec 16:08 PM6:12 AM6:12 AMDec 316:22 PMDec 316:22 PM6:02 AM6:02 AMDec 116:13 PMDec 116:13 PM6:07 AM6:07 AMDec 216:17 PMDec 216:17 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of December. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

The figure below presents a compact representation of key lunar data for December 2022. 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 at Cotopaxi International Airport

Moon Rise, Set & Phases in December at Cotopaxi International AirportDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNovJanNov 86:03 AMNov 86:03 AMNov 235:58 PMNov 235:58 PMDec 711:09 PMDec 711:09 PMDec 235:18 AMDec 235:18 AMJan 66:09 PMJan 66:09 PMJan 213:54 PMJan 213:54 PM5:35 PM5:35 PM5:56 AM5:56 AM5:29 AM5:29 AM6:01 PM6:01 PM5:55 PM5:55 PM6:17 AM6:17 AM6:14 AM6:14 AM6:51 PM6:51 PM6:25 PM6:25 PM6:46 AM6:46 AM6:03 AM6:03 AM6:39 PM6:39 PM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.
Dec 2022IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
65%-12:54 AMW1:16 PME7:28 PMS235,826 mi
2
75%-1:39 AMW2:02 PME8:12 PMN238,318 mi
3
84%-2:24 AMW2:46 PME8:56 PMN240,704 mi
4
91%-3:07 AMW3:31 PMENE9:41 PMN242,958 mi
5
96%-3:52 AMWNW4:17 PMENE10:27 PMN245,067 mi
6
99%-4:38 AMWNW5:05 PMENE11:15 PMN247,012 mi
7
100%-5:27 AMWNW5:55 PMENE--
8
100%-6:17 AMWNW6:47 PMENE12:06 AMN248,758 mi
9
99%-7:09 AMWNW7:39 PMENE12:58 AMN250,242 mi
10
96%-8:01 AMWNW8:30 PMENE1:50 AMN251,377 mi
11
91%-8:51 AMWNW9:19 PMENE2:41 AMN252,054 mi
12
85%-9:40 AMWNW10:06 PMENE3:30 AMN252,162 mi
13
77%-10:26 AMWNW10:50 PMENE4:17 AMN251,602 mi
14
69%-11:09 AMWNW11:32 PMENE5:01 AMN250,301 mi
15
59%-11:52 AMW-5:43 AMN248,235 mi
16
50%12:14 AME12:34 PMW-6:24 AMN245,437 mi
17
39%12:55 AME1:16 PMW-7:06 AMN242,013 mi
18
29%1:38 AME2:01 PMW-7:49 AMS238,144 mi
19
19%2:23 AMESE2:49 PMWSW-8:35 AMS234,093 mi
20
11%3:13 AMESE3:42 PMWSW-9:26 AMS230,185 mi
21
5%4:07 AMESE4:41 PMWSW-10:23 AMS226,786 mi
22
1%5:08 AMESE5:44 PMWSW-11:25 AMS224,248 mi
23
0%6:14 AMESE6:51 PMWSW-12:33 PMS222,848 mi
24
3%7:21 AMESE7:58 PMWSW-1:40 PMS222,723 mi
25
8%8:26 AMESE9:00 PMWSW-2:45 PMS223,835 mi
26
17%9:27 AMESE9:57 PMWSW-3:44 PMS225,988 mi
27
27%10:22 AMESE10:49 PMW-4:37 PMS228,889 mi
28
38%11:13 AME11:37 PMW-5:25 PMS232,219 mi
29
50%12:00 PME--6:11 PMN235,681 mi
30
60%-12:22 AMW12:45 PME6:55 PMN239,039 mi
31
70%-1:06 AMW1:30 PME7:39 PMN242,127 mi

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 Cotopaxi International Airport is essentially constant during December, remaining around 0% throughout.

Humidity Comfort Levels in December at Cotopaxi International Airport

Humidity Comfort Levels in December at Cotopaxi International AirportDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%NovJanDec 10%Dec 10%Dec 310%Dec 310%Dec 110%Dec 110%Dec 210%Dec 210%drydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

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 Cotopaxi International Airport is essentially constant during December, remaining around 3.6 miles per hour throughout.

For reference, on August 1, the windiest day of the year, the daily average wind speed is 7.8 miles per hour, while on February 8, the calmest day of the year, the daily average wind speed is 3.4 miles per hour.

Average Wind Speed in December at Cotopaxi International Airport

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction at Cotopaxi International Airport throughout December is predominantly from the east, with a peak proportion of 52% on December 23.

Wind Direction in December at Cotopaxi International Airport

Wind Direction in December at Cotopaxi International AirportDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%NovJanwesteastsouthnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

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 Cotopaxi 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.

Time Spent in Various Temperature Bands and the Growing Season in December at Cotopaxi International Airport

Time Spent in Various Temperature Bands and the Growing Season in December at Cotopaxi International AirportDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%NovJan97%Dec 197%Dec 1100%Dec 31100%Dec 3199%Dec 1199%Dec 11100%Dec 21100%Dec 21coldcoolcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

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 Cotopaxi International Airport are increasing during December, increasing by 181°F, from 754°F to 935°F, over the course of the month.

Growing Degree Days in December at Cotopaxi International Airport

Growing Degree Days in December at Cotopaxi International AirportDec1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930303131700°F700°F750°F750°F800°F800°F850°F850°F900°F900°F950°F950°F1,000°F1,000°F1,050°F1,050°FNovJanDec 1754°FDec 1754°FDec 31935°FDec 31935°FDec 11815°FDec 11815°FDec 21876°FDec 21876°F
The average growing degree days accumulated over the course of December, with 25th to 75th and 10th to 90th percentile bands.

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 Cotopaxi International Airport is essentially constant during December, remaining around 5.2 kWh throughout.

The lowest average daily incident shortwave solar energy during December is 5.1 kWh on December 5.

Average Daily Incident Shortwave Solar Energy in December at Cotopaxi International Airport

Average Daily Incident Shortwave Solar Energy in December at Cotopaxi International AirportDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhNovJanDec 55.1 kWhDec 55.1 kWhDec 315.2 kWhDec 315.2 kWhDec 215.2 kWhDec 215.2 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

This report illustrates the typical weather at Cotopaxi International Airport, 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

Cotopaxi International Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

In this case, the only station close and reliable enough to use as a fallback is Mariscal Sucre International Airport.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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