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December Weather at Coronation Airport Canada

Daily high temperatures decrease by 6°F, from 24°F to 18°F, rarely falling below -5°F or exceeding 38°F.

Daily low temperatures decrease by 7°F, from 10°F to 3°F, rarely falling below -20°F or exceeding 26°F.

For reference, on July 26, the hottest day of the year, temperatures at Coronation Airport typically range from 54°F to 76°F, while on January 2, the coldest day of the year, they range from 3°F to 18°F.

Average High and Low Temperature in December at Coronation 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 Coronation Airport

Average Hourly Temperature in December at Coronation 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 AMNovJanfrigidfreezingfreezingvery cold
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.

Mayna, Russia (5,007 miles away) and Miass, Russia (5,025 miles) are the far-away foreign places with temperatures most similar to Coronation Airport (view comparison).

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The month of December at Coronation Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 63% throughout the month.

The clearest day of the month is December 8, with clear, mostly clear, or partly cloudy conditions 38% of the time.

For reference, on January 25, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 66%, while on July 28, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 65%.

Cloud Cover Categories in December at Coronation Airport

Cloud Cover Categories in December at Coronation AirportDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%NovJanDec 137%Dec 137%Dec 3135%Dec 3135%Dec 1137%Dec 1137%Dec 2136%Dec 2136%clearmostly clearpartly cloudymostly cloudyovercast
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 Coronation Airport, the chance of a wet day over the course of December is essentially constant, remaining around 5% throughout.

For reference, the year's highest daily chance of a wet day is 30% on June 19, and its lowest chance is 4% on February 2.

Probability of Precipitation in December at Coronation Airport

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).

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day snowfall during December at Coronation Airport is essentially constant, remaining about 1.9 inches throughout, and rarely exceeding 4.7 inches or falling below 0.2 inches.

Average Monthly Snowfall in December at Coronation Airport

The average snowfall (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 rainfall.

Over the course of December at Coronation Airport, the length of the day is essentially constant. The shortest day of the month is December 20, with 7 hours, 44 minutes of daylight and the longest day is December 1, with 8 hours, 4 minutes of daylight.

Hours of Daylight and Twilight in December at Coronation Airport

Hours of Daylight and Twilight in December at Coronation AirportDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrNovJanDec 217 hr, 44 minDec 217 hr, 44 minnightnightdaydayDec 18 hr, 4 minDec 18 hr, 4 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 Coronation Airport is 8:12 AM on December 1 and the latest sunrise is 22 minutes later at 8:34 AM on December 29.

The earliest sunset is 4:13 PM on December 12 and the latest sunset is 10 minutes later at 4:24 PM on December 31.

Daylight saving time is observed at Coronation Airport during 2024, but it neither starts nor ends during December, so the entire month is in daylight saving time.

For reference, on June 20, the longest day of the year, the Sun rises at 5:05 AM and sets 16 hours, 45 minutes later, at 9:50 PM, while on December 21, the shortest day of the year, it rises at 8:32 AM and sets 7 hours, 44 minutes later, at 4:16 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in December at Coronation Airport

Sunrise & Sunset with Twilight and Daylight Saving Time in December at Coronation AirportDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMNovJan8:12 AM8:12 AMDec 14:17 PMDec 14:17 PM8:34 AM8:34 AMDec 314:24 PMDec 314:24 PM8:25 AM8:25 AMDec 124:13 PMDec 124:13 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 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.

Solar Elevation and Azimuth in December at Coronation Airport

Solar Elevation and Azimuth in December at Coronation 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 AMNovJan001010001010
northeastsouthwest
Solar elevation and azimuth over the course of December 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

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.

Moon Rise, Set & Phases in December at Coronation Airport

Moon Rise, Set & Phases in December at Coronation AirportDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNovJanNov 16:48 AMNov 16:48 AMNov 152:29 PMNov 152:29 PMNov 3011:22 PMNov 3011:22 PMDec 152:02 AMDec 152:02 AMDec 303:28 PMDec 303:28 PMJan 133:28 PMJan 133:28 PMJan 295:37 AMJan 295:37 AM8:46 AM8:46 AM5:37 PM5:37 PM3:59 PM3:59 PM9:24 AM9:24 AM8:04 AM8:04 AM3:23 PM3:23 PM3:03 PM3:03 PM9:34 AM9:34 AM9:10 AM9:10 AM3:38 PM3:38 PM4:06 PM4:06 PM9:32 AM9:32 AM8:47 AM8:47 AM5:23 PM5:23 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 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
0%9:18 AMSE3:57 PMSW-12:38 PMS245,164 mi
2
3%10:24 AMSE4:46 PMSW-1:35 PMS243,073 mi
3
7%11:16 AMSE5:51 PMSW-2:34 PMS240,936 mi
4
14%11:53 AMSE7:10 PMSW-3:31 PMS238,788 mi
5
22%12:19 PMSE8:34 PMSW-4:26 PMS236,648 mi
6
32%12:37 PMESE10:00 PMWSW-5:18 PMS234,535 mi
7
43%12:52 PMESE11:25 PMWSW-6:07 PMS232,488 mi
8
50%1:04 PME--6:54 PMS230,583 mi
9
67%-12:50 AMW1:15 PME7:41 PMS228,940 mi
10
77%-2:16 AMW1:27 PMENE8:29 PMS227,713 mi
11
87%-3:44 AMWNW1:41 PMENE9:20 PMS227,078 mi
12
94%-5:16 AMWNW1:59 PMNE10:15 PMS227,193 mi
13
98%-6:50 AMNW2:25 PMNE11:14 PMS228,161 mi
14
100%-8:19 AMNW3:03 PMNE--
15
100%-9:34 AMNW3:59 PMNE12:16 AMS229,992 mi
16
99%-10:30 AMNW5:11 PMNE1:17 AMS232,584 mi
17
95%-11:07 AMNW6:33 PMNE2:16 AMS235,729 mi
18
89%-11:31 AMNW7:56 PMENE3:10 AMS239,151 mi
19
81%-11:48 AMWNW9:15 PMENE3:59 AMS242,553 mi
20
73%-12:00 PMWNW10:30 PMENE4:44 AMS245,655 mi
21
63%-12:10 PMW11:43 PME5:25 AMS248,221 mi
22
50%-12:19 PMW-6:04 AMS250,077 mi
23
44%12:53 AME12:28 PMW-6:43 AMS251,116 mi
24
35%2:03 AMESE12:38 PMWSW-7:22 AMS251,302 mi
25
26%3:15 AMESE12:49 PMWSW-8:03 AMS250,667 mi
26
18%4:29 AMESE1:04 PMSW-8:47 AMS249,304 mi
27
11%5:46 AMSE1:24 PMSW-9:35 AMS247,357 mi
28
5%7:02 AMSE1:54 PMSW-10:28 AMS245,009 mi
29
1%8:12 AMSE2:37 PMSW-11:25 AMS242,459 mi
30
0%9:10 AMSE3:38 PMSW-12:24 PMS239,907 mi
31
1%9:53 AMSE4:54 PMSW-1:23 PMS237,523 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 Coronation Airport is essentially constant during December, remaining around 0% throughout.

For reference, on July 15, 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 at Coronation Airport

Humidity Comfort Levels in December at Coronation 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 Coronation Airport is essentially constant during December, remaining within 0.1 miles per hour of 11.0 miles per hour throughout.

For reference, on January 17, the windiest day of the year, the daily average wind speed is 11.2 miles per hour, while on August 1, the calmest day of the year, the daily average wind speed is 8.5 miles per hour.

Average Wind Speed in December at Coronation 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 Coronation Airport throughout December is predominantly from the west, with a peak proportion of 44% on December 11.

Wind Direction in December at Coronation Airport

Wind Direction in December at Coronation AirportDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%NovJanwestsouthnortheast
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).

The growing season at Coronation Airport typically lasts for 4.3 months (132 days), from around May 9 to around September 18, rarely starting before April 21 or after May 27, and rarely ending before August 31 or after October 6.

The month of December at Coronation Airport is reliably fully outside of the growing season.

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

Time Spent in Various Temperature Bands and the Growing Season in December at Coronation AirportDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%NovJan-0%Dec 16-0%Dec 160%Nov 270%Nov 27frigidfreezingvery coldcold
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 Coronation Airport are essentially constant during December, remaining around 1,501°F throughout.

Growing Degree Days in December at Coronation Airport

Growing Degree Days in December at Coronation AirportDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031311,250°F1,250°F1,300°F1,300°F1,350°F1,350°F1,400°F1,400°F1,450°F1,450°F1,500°F1,500°F1,550°F1,550°F1,600°F1,600°F1,650°F1,650°F1,700°F1,700°FNovJanDec 11,501°FDec 11,501°FDec 311,501°FDec 311,501°FDec 111,501°FDec 111,501°FDec 211,501°FDec 211,501°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 Coronation Airport is essentially constant during December, remaining within 0.1 kWh of 0.9 kWh throughout.

The lowest average daily incident shortwave solar energy during December is 0.8 kWh on December 23.

Average Daily Incident Shortwave Solar Energy in December at Coronation Airport

Average Daily Incident Shortwave Solar Energy in December at Coronation AirportDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 kWh0.0 kWh0.2 kWh0.2 kWh0.4 kWh0.4 kWh0.6 kWh0.6 kWh0.8 kWh0.8 kWh1.0 kWh1.0 kWh1.2 kWh1.2 kWh1.4 kWh1.4 kWh1.6 kWh1.6 kWh1.8 kWh1.8 kWh2.0 kWh2.0 kWh2.2 kWh2.2 kWh2.4 kWh2.4 kWhNovJanDec 230.8 kWhDec 230.8 kWhDec 11.0 kWhDec 11.0 kWhDec 110.9 kWhDec 110.9 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 Coronation 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

Coronation 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.

The stations on which we may fall back include but are not limited to Coronation Automated Reporting Station, Consort AGDM, Wainwright Automatic Weather Reporting System, Pollockville AGDM, Viking Agcm, Stettler AGDM, Morrin AGDM, and Oyen AGDM.

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 © OpenStreetMap contributors.

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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