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December 2009 Weather History at Cocos Island Airport Cocos (Keeling) Islands

This report shows the past weather for Cocos Island Airport, providing a weather history for December 2009. It features all historical weather data series we have available, including the Cocos Island Airport temperature history for December 2009. You can drill down from year to month and even day level reports by clicking on the graphs.

Cocos Island Airport Temperature History December 2009

History:20112010JFMAMJJASONDec20082007
Temperature history in December 2009 at Cocos Island Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313172°F72°F74°F74°F76°F76°F78°F78°F80°F80°F82°F82°F84°F84°F86°F86°F88°F88°FNovJan
The daily range of reported temperatures (gray bars) and 24-hour highs (red ticks) and lows (blue ticks), placed over the daily average high (faint red line) and low (faint blue line) temperature, with 25th to 75th and 10th to 90th percentile bands.

Hourly Temperature in December 2009 at Cocos Island Airport

History:20112010JFMAMJJASONDec20082007
Hourly Temperature in December 2009 at Cocos Island Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJanwarm
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 hourly reported temperature, color coded into bands. The shaded overlays indicate night and civil twilight.
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Cloud Cover in December 2009 at Cocos Island Airport

History:20112010JFMAMJJASONDec20082007
Cloud Cover in December 2009 at Cocos Island Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJan
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
no significant cloudno cloud detectedceiling and visibility ok
The hourly reported cloud coverage, categorized by the percentage of the sky covered by clouds.

Observed Weather in December 2009 at Cocos Island Airport

History:20112010JFMAMJJASONDec20082007
Observed Weather in December 2009 at Cocos Island Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJan
foghazedrizzlelight rainmoderate rainheavy rainfreezing rainsleetsnow grainslight snowmoderate snowheavy snowhailthunderstorm
The hourly observed weather, color coded by category (in order of severity). If multiple reports are present, the most severe code is shown.
DayObservationsPrecipitationCodes
Tue, Dec 1 Haze, Precipitation in the VicinityIWC05, IWC15
Wed, Dec 2 HazeIWC05
Thu, Dec 3 Showers of Rain, Showers of Light Rain, Drizzle/Snow Grains, Light Drizzle, Haze, Precipitation in the VicinityIWC81, IWC25, IWC80, IWC20, IWC51, IWC05, IWC16, IWC15
Fri, Dec 4 Showers of Rain, Showers of Light Rain, Haze, Precipitation in the VicinityIWC25, IWC80, IWC05, IWC16, IWC15
Sat, Dec 5 Haze, Precipitation in the VicinityIWC05, IWC16
Sun, Dec 6 HazeIWC05
Mon, Dec 7 HazeIWC05
Tue, Dec 8 HazeIWC05
Wed, Dec 9 Haze, Precipitation in the VicinityIWC05, IWC15
Thu, Dec 10 Showers of Light Rain, Haze, Precipitation in the VicinityIWC80, IWC05, IWC15, IWC16
Fri, Dec 11 Light Intermittent Rain, Light Rain, HazeIWC60, IWC61, IWC05
Sat, Dec 12 HazeIWC05
Sun, Dec 13 HazeIWC05
Mon, Dec 14 HazeIWC05
Tue, Dec 15 HazeIWC05
Thu, Dec 17 HazeIWC05
Fri, Dec 18 Precipitation in the VicinityIWC16
Sun, Dec 20 Precipitation in the VicinityIWC15
Mon, Dec 21 Light Rain, Showers of Light Rain, Drizzle, Light Drizzle, Precipitation in the VicinityIWC61, IWC80, IWC53, IWC51, IWC16, IWC15
Tue, Dec 22 Showers of Light Rain, Precipitation in the VicinityIWC80, IWC16, IWC15
Fri, Dec 25 Haze, Precipitation in the VicinityIWC05, IWC15, IWC16
Sat, Dec 26 Showers of Rain, Showers of Light Rain, Precipitation in the VicinityIWC25, IWC80, IWC16, IWC15
Sun, Dec 27 Showers of Rain, Showers of Light Rain, Precipitation in the VicinityIWC25, IWC80, IWC16, IWC15
Mon, Dec 28 Showers of Light Rain, Precipitation in the VicinityIWC80, IWC15, IWC16
Tue, Dec 29 Drizzle/Snow Grains, Light Drizzle, HazeIWC20, IWC51, IWC05
Wed, Dec 30 Showers of Rain, Haze, Precipitation in the VicinityIWC25, IWC05, IWC15, IWC16
Thu, Dec 31 Showers of Rain, Showers of Light Rain, Haze, Precipitation in the VicinityIWC25, IWC80, IWC05, IWC16, IWC15

Hours of Daylight and Twilight in December 2009 at Cocos Island Airport

History:20112010JFMAMJJASONDec20082007
Hours of Daylight and Twilight in December 2009 at Cocos Island Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrNovJanDec 2212 hr, 51 minDec 2212 hr, 51 mindaydaydaydaynightDec 112 hr, 47 minDec 112 hr, 47 minDec 3112 hr, 50 minDec 3112 hr, 50 minDec 1112 hr, 50 minDec 1112 hr, 50 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.

Sunrise & Sunset with Twilight in December 2009 at Cocos Island Airport

History:20112010JFMAMJJASONDec20082007
Sunrise & Sunset with Twilight in December 2009 at Cocos Island Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMNovJan5:28 AM5:28 AMDec 16:15 PMDec 16:15 PM5:40 AM5:40 AMDec 316:30 PMDec 316:30 PM5:31 AM5:31 AMDec 116:20 PMDec 116:20 PM5:35 AM5:35 AMDec 216:26 PMDec 216:26 PM
The solar day over the course of December 2009. 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.

Solar Elevation and Azimuth in December 2009 at Cocos Island Airport

History:20112010JFMAMJJASONDec20082007
Solar Elevation and Azimuth in December 2009 at Cocos Island 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 AMNovJan00101020203030404050506060707080001010202030304040505060607070
northeastsouthwest
Solar elevation and azimuth over the course of December 2009. 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).

Moon Rise, Set & Phases in December 2009 at Cocos Island Airport

History:20112010JFMAMJJASONDec20082007
Moon Rise, Set & Phases in December 2009 at Cocos Island Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNovJanDec 22:01 PMDec 22:01 PMDec 166:33 PMDec 166:33 PMJan 11:43 AMJan 11:43 AM6:24 PM6:24 PM6:06 AM6:06 AM5:05 AM5:05 AM6:21 PM6:21 PM6:09 PM6:09 PM5:55 AM5:55 AM
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 2009IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
99%-4:08 AMWNW5:21 PMENE11:12 PMN229,595 mi
2
100%-5:04 AMWNW6:24 PMENE--
3
100%-6:06 AMWNW7:28 PMENE12:15 AMN227,404 mi
4
97%-7:11 AMWNW8:28 PMENE1:19 AMN226,148 mi
5
92%-8:15 AMWNW9:24 PMENE2:23 AMN225,879 mi
6
83%-9:18 AMWNW10:15 PMENE3:22 AMN226,521 mi
7
73%-10:17 AMWNW11:02 PME4:17 AMN227,906 mi
8
62%-11:13 AMW11:45 PME5:08 AMN229,824 mi
9
50%-12:07 PMW-5:56 AMN232,065 mi
10
39%12:27 AME12:59 PMW-6:42 AMN234,455 mi
11
28%1:09 AME1:52 PMWSW-7:29 AMN236,868 mi
12
19%1:51 AMESE2:45 PMWSW-8:17 AMS239,227 mi
13
11%2:36 AMESE3:39 PMWSW-9:06 AMS241,497 mi
14
6%3:23 AMESE4:33 PMWSW-9:57 AMS243,660 mi
15
2%4:13 AMESE5:28 PMWSW-10:50 AMS245,701 mi
16
0%5:05 AMESE6:21 PMWSW-11:43 AMS247,587 mi
17
1%5:58 AMESE7:11 PMWSW-12:35 PMS249,262 mi
18
3%6:50 AMESE7:58 PMWSW-1:25 PMS250,642 mi
19
7%7:41 AMESE8:41 PMWSW-2:12 PMS251,622 mi
20
13%8:30 AMESE9:21 PMWSW-2:57 PMS252,086 mi
21
20%9:17 AMESE9:58 PMW-3:39 PMN251,923 mi
22
28%10:03 AME10:34 PMW-4:19 PMN251,044 mi
23
38%10:48 AME11:10 PMW-4:59 PMN249,396 mi
24
47%11:33 AME11:46 PMW-5:40 PMN246,981 mi
25
50%12:20 PME--6:22 PMN243,868 mi
26
68%-12:25 AMWNW1:10 PMENE7:08 PMN240,202 mi
27
78%-1:06 AMWNW2:03 PMENE7:57 PMN236,212 mi
28
86%-1:53 AMWNW3:01 PMENE8:52 PMN232,199 mi
29
93%-2:46 AMWNW4:02 PMENE9:53 PMN228,523 mi
30
98%-3:44 AMWNW5:06 PMENE10:57 PMN225,555 mi
31
100%-4:48 AMWNW6:09 PMENE--

Humidity Comfort Levels in December 2009 at Cocos Island Airport

History:20112010JFMAMJJASONDec20082007
Humidity Comfort Levels in December 2009 at Cocos Island Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJan
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The hourly reported humidity comfort level, categorized by dew point. The shaded overlays indicate night and civil twilight.

Wind Speed in December 2009 at Cocos Island Airport

History:20112010JFMAMJJASONDec20082007
Wind Speed in December 2009 at Cocos Island Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mphNovJan
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in December 2009 at Cocos Island Airport

History:20112010JFMAMJJASONDec20082007
Hourly Wind Speed in December 2009 at Cocos Island Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJan
0 mph calm 1 mph light air 4 mph light breeze 8 mph gentle breeze 13 mph moderate breeze 18 mph fresh breeze 25 mph strong breeze 31 mph near gale 39 mph gale 47 mph strong gale 55 mph storm 64 mph violent storm 73 mph hurricane force
The hourly reported wind speed, color coded into bands according to the Beaufort scale. The shaded overlays indicate night and civil twilight.

Hourly Wind Direction in 2009 at Cocos Island Airport

History:20112010JFMAMJJASONDec20082007
Hourly Wind Direction in 2009 at Cocos Island Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJan
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in December 2009 at Cocos Island Airport

History:20112010JFMAMJJASONDec20082007
Atmospheric Pressure in December 2009 at Cocos Island Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313129.60 inHg29.60 inHg29.65 inHg29.65 inHg29.70 inHg29.70 inHg29.75 inHg29.75 inHg29.80 inHg29.80 inHg29.85 inHg29.85 inHg29.90 inHg29.90 inHg29.95 inHg29.95 inHgNovJan
The daily range of atmospheric pressure (gray bars), as measured by the altimeter setting reported in e.g. a METAR report.

Reports by Month

Reports by Month at Cocos Island Airport19401950196019701980199020002010202019491949195019501951195119521952195319531954195419551955195619561957195719581958196119611962196219631963196419641965196519731973197419741975197519761976197719771978197819791979198019801981198119821982198319831984198419851985198619861987198719881988198919891990199019911991199219921993199319941994199519951996199619971997199819981999199920002000200120012002200220032003200420042005200520062006200720072008200820092009201020102011201120122012201320132014201420152015201620162017201720182018201920192020202020212021202220222023202320242024
METARISDboth
The number of reports per month over the entire history of this station.

Number of Reports by Day in December 2009 at Cocos Island Airport Summer 2009

Number of Reports by Day in December 2009 at Cocos Island Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930303131002020404060608080NovJan
regularspecialcorrection
The number of reports per day.

Reports by Hour in December 2009 at Cocos Island Airport Summer 2009

Reports by Hour in December 2009 at Cocos Island Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMNovJan
regularspecialcorrection
Indication of what types of reports were recorded during each hour.

This report graphically illustrates the historical weather reports recorded by the weather station at Cocos Island Airport in December 2009.

METAR Reports

Airport weather stations throughout the world routinely issue METAR weather reports . Such reports are used by pilots, air traffic controllers, meteorologists, climatologists, and other researchers. They are published via radio transmission and on the internet. We have been collecting and archiving published METAR reports since 2011, and have found third-party sources for archived reports from years prior to that.

ISD Reports

The Integrated Surface Database (ISD), maintained and published by NOAA's National Center for Environmental Information , consists of hourly and synoptic weather reports from a variety of sources. We use ISD data to complement and backfill for our METAR archive.

Other Data

The sources for the averages shown in the daily temperature chart are discussed in greater detail on this station's Averages Report.

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.

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.

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