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January 2021 Weather History at Osan Ab South Korea

This report shows the past weather for Osan Ab, providing a weather history for January 2021. It features all historical weather data series we have available, including the Osan Ab temperature history for January 2021. You can drill down from year to month and even day level reports by clicking on the graphs.

Osan Ab Temperature History January 2021

History:20232022JanFMAMJJASOND20202019
Temperature history in January 2021 at Osan Ab181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930303131-10°F-10°F0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°FDecFeb
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 January 2021 at Osan Ab

History:20232022JanFMAMJJASOND20202019
Hourly Temperature in January 2021 at Osan Ab18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMDecFebfrigidfreezingvery 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 hourly reported temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

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Cloud Cover in January 2021 at Osan Ab

History:20232022JanFMAMJJASOND20202019
Cloud Cover in January 2021 at Osan Ab18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMDecFeb
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.
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Daily Precipitation in January 2021 at Osan Ab

History:20232022JanFMAMJJASOND20202019
Daily Precipitation in January 2021 at Osan Ab1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 inDecFeb
The daily measured quantity of liquid or liquid-equivalent precipitation.

Snow Depth in January 2021 at Osan Ab

History:20232022JanFMAMJJASOND20202019
Snow Depth in January 2021 at Osan Ab1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 in0 in1 in1 in2 in2 in3 in3 in4 in4 inDecFeb
The daily measured snow depth, where available.

Observed Weather in January 2021 at Osan Ab

History:20232022JanFMAMJJASOND20202019
Observed Weather in January 2021 at Osan Ab18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMDecFeb
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
Fri, Jan 1 Light Snow, Mist, Unknown Precipitation0.00 in-SN, BR, UP
Sat, Jan 2 MistBR
Mon, Jan 4 Light Rain and Snow0.00 in-RASN
Wed, Jan 6 Heavy Snow, Snow, Light Snow, Freezing Fog, Mist, Blowing Snow, Drifting Snow0.14 in+SN, SN, -SN, FZFG, BR, BLSN, DRSN
Thu, Jan 7 Light Snow, Showers of Light Snow, Mist, Blowing Snow, Drifting Snow0.00 in-SN, -SHSN, BR, BLSN, DRSN
Fri, Jan 8 HazeHZ, IWC05
Sat, Jan 9 MistIWCA10, BR
Sun, Jan 10 Light Snow, Mist-SN, BR
Mon, Jan 11 Haze, MistHZ, BR
Tue, Jan 12 Snow, Light Snow, Showers of Light Snow, Haze, Freezing Fog, Mist, Patches of Fog, Shallow Fog0.74 inSN, -SN, -SHSN, HZ, FZFG, BR, BCFG, MIFG
Wed, Jan 13 Haze, Freezing Fog, MistHZ, FZFG, BR
Thu, Jan 14 MistBR
Fri, Jan 15 Haze, MistHZ, BR
Sat, Jan 16 HazeHZ
Sun, Jan 17 Heavy Snow, Snow, Light Snow, Light Snow Grains, Haze, Freezing Fog, Mist, Showers in the Vicinity0.00 in+SN, SN, -SN, -SG, HZ, FZFG, BR, VCSH
Mon, Jan 18 Snow, Light Snow, Light Snow Grains, Mist, Blowing Snow, Blowing Snow in the Vicinity0.05 inSN, -SN, -SG, BR, BLSN, VCBLSN
Thu, Jan 21 Light Rain, Light Drizzle, Smoke, Mist0.24 inIWCA61, IWCA51, IWCA05, IWCA10
Fri, Jan 22 Light Drizzle, Fog, Mist0.00 inIWCA51, IWCA30, IWCA10, IWC10
Sat, Jan 23 Fog, Mist, Patches of FogIWC44, IWC10, IWCA10, IWCA31
Mon, Jan 25 MistBR, IWCA10
Tue, Jan 26 Light Rain, Light Drizzle, Haze, Mist0.08 in-RA, -DZ, HZ, BR
Wed, Jan 27 MistBR, IWCA10
Thu, Jan 28 Heavy Snow, Snow, Light Snow, Haze, Fog, Mist, Blowing Snow0.07 in+SN, SN, -SN, HZ, FG, BR, BLSN
Sat, Jan 30 Light Snow, Haze, Mist0.00 in-SN, HZ, BR
Sun, Jan 31 HazeHZ

Hours of Daylight and Twilight in January 2021 at Osan Ab

History:20232022JanFMAMJJASOND20202019
Hours of Daylight and Twilight in January 2021 at Osan Ab1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrDecFebnightnightdaydayJan 19 hr, 40 minJan 19 hr, 40 minJan 3110 hr, 20 minJan 3110 hr, 20 minJan 119 hr, 49 minJan 119 hr, 49 minJan 2110 hr, 3 minJan 2110 hr, 3 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 January 2021 at Osan Ab

History:20232022JanFMAMJJASOND20202019
Sunrise & Sunset with Twilight in January 2021 at Osan Ab1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMDecFeb7:35 AM7:35 AMJan 315:55 PMJan 315:55 PM7:45 AM7:45 AMJan 15:25 PMJan 15:25 PM7:45 AM7:45 AMJan 115:34 PMJan 115:34 PM7:42 AM7:42 AMJan 215:44 PMJan 215:44 PM
The solar day over the course of January 2021. 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 January 2021 at Osan Ab

History:20232022JanFMAMJJASOND20202019
Solar Elevation and Azimuth in January 2021 at Osan AbJan112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMDecFeb00101020203030001010202030
northeastsouthwest
Solar elevation and azimuth over the course of January 2021. 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 January 2021 at Osan Ab

History:20232022JanFMAMJJASOND20202019
Moon Rise, Set & Phases in January 2021 at Osan Ab18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMDecFebDec 3012:29 PMDec 3012:29 PMJan 132:01 PMJan 132:01 PMJan 294:17 AMJan 294:17 AM4:32 PM4:32 PM7:46 AM7:46 AM7:48 AM7:48 AM5:32 PM5:32 PM5:10 PM5:10 PM8:06 AM8:06 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.
Jan 2021IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
97%-9:27 AMWNW7:23 PMENE1:56 AMS240,753 mi
2
93%-10:10 AMWNW8:29 PMENE2:49 AMS238,644 mi
3
86%-10:47 AMWNW9:35 PMENE3:41 AMS236,651 mi
4
78%-11:20 AMWNW10:42 PME4:31 AMS234,788 mi
5
67%-11:50 AMW11:50 PME5:19 AMS233,060 mi
6
50%-12:20 PMW-6:07 AMS231,487 mi
7
44%12:57 AME12:50 PMW-6:55 AMS230,123 mi
8
33%2:06 AMESE1:23 PMWSW-7:45 AMS229,057 mi
9
22%3:17 AMESE1:59 PMWSW-8:38 AMS228,413 mi
10
13%4:29 AMESE2:41 PMWSW-9:35 AMS228,329 mi
11
6%5:41 AMESE3:31 PMWSW-10:36 AMS228,927 mi
12
2%6:48 AMESE4:28 PMWSW-11:38 AMS230,271 mi
13
0%7:48 AMESE5:32 PMWSW-12:40 PMS232,342 mi
14
1%8:40 AMESE6:38 PMWSW-1:39 PMS235,020 mi
15
5%9:23 AMESE7:44 PMWSW-2:34 PMS238,101 mi
16
11%9:58 AMESE8:49 PMWSW-3:23 PMS241,330 mi
17
18%10:29 AMESE9:50 PMW-4:09 PMS244,437 mi
18
27%10:57 AME10:49 PMW-4:52 PMS247,167 mi
19
36%11:22 AME11:47 PMW-5:33 PMS249,307 mi
20
45%11:47 AME--6:13 PMS250,698 mi
21
50%-12:44 AMW12:12 PMENE6:54 PMS251,248 mi
22
65%-1:41 AMWNW12:39 PMENE7:36 PMS250,936 mi
23
74%-2:38 AMWNW1:09 PMENE8:20 PMS249,808 mi
24
82%-3:37 AMWNW1:44 PMENE9:08 PMS247,976 mi
25
89%-4:36 AMWNW2:25 PMENE9:58 PMS245,608 mi
26
95%-5:34 AMWNW3:13 PMENE10:51 PMS242,911 mi
27
98%-6:30 AMWNW4:08 PMENE11:46 PMS240,112 mi
28
99%-7:21 AMWNW5:10 PMENE--
29
100%-8:06 AMWNW6:16 PMENE12:40 AMS237,431 mi
30
99%-8:45 AMWNW7:24 PMENE1:34 AMS235,053 mi
31
96%-9:21 AMWNW8:33 PMENE2:26 AMS233,104 mi

Humidity Comfort Levels in January 2021 at Osan Ab

History:20232022JanFMAMJJASOND20202019
Humidity Comfort Levels in January 2021 at Osan Ab18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMDecFeb
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 January 2021 at Osan Ab

History:20232022JanFMAMJJASOND20202019
Wind Speed in January 2021 at Osan Ab1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mphDecFeb
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in January 2021 at Osan Ab

History:20232022JanFMAMJJASOND20202019
Hourly Wind Speed in January 2021 at Osan Ab18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMDecFeb
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 2021 at Osan Ab

History:20232022JanFMAMJJASOND20202019
Hourly Wind Direction in 2021 at Osan Ab18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMDecFeb
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in January 2021 at Osan Ab

History:20232022JanFMAMJJASOND20202019
Atmospheric Pressure in January 2021 at Osan Ab18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313129.8 inHg29.8 inHg30.0 inHg30.0 inHg30.2 inHg30.2 inHg30.4 inHg30.4 inHg30.6 inHg30.6 inHgDecFeb
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 Osan Ab194019501960197019801990200020102020195319531954195419551955195619561957195719581958195919591960196019611961196219621963196319641964196519651966196619671967196819681969196919701970197319731974197419751975197619761977197719781978197919791980198019811981198219821983198319841984198519851986198619871987198819881989198919901990199119911992199219931993199419941995199519961996199719971998199819991999200020002001200120022002200320032004200420052005200620062007200720082008200920092010201020112011201220122013201320142014201520152016201620172017201820182019201920202020202120212022202220232023202420242025202520262026
METARISDboth
The number of reports per month over the entire history of this station.

Number of Reports by Day in January 2021 at Osan Ab Winter 2021

Number of Reports by Day in January 2021 at Osan Ab181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930303131005050100100DecFeb
regularspecialcorrection
The number of reports per day.

Reports by Hour in January 2021 at Osan Ab Winter 2021

Reports by Hour in January 2021 at Osan Ab18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMDecFeb
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 Osan Ab in January 2021.

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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