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April 2021 Weather History at Thule Air Base Greenland

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

Thule Air Base Temperature History April 2021

History:20232022JFMAprMJJASOND20202019
Temperature history in April 2021 at Thule Air Base18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030-30°F-30°F-20°F-20°F-10°F-10°F0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°FMarMay
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 April 2021 at Thule Air Base

History:20232022JFMAprMJJASOND20202019
Hourly Temperature in April 2021 at Thule Air Base1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMayfrigidfreezing
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 April 2021 at Thule Air Base

History:20232022JFMAprMJJASOND20202019
Cloud Cover in April 2021 at Thule Air Base1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
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.

Daily Precipitation in April 2021 at Thule Air Base

History:20232022JFMAprMJJASOND20202019
Daily Precipitation in April 2021 at Thule Air Base181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 in0.0 in0.2 in0.2 in0.4 in0.4 in0.6 in0.6 in0.8 in0.8 in1.0 in1.0 in1.2 in1.2 inMarMay
The daily measured quantity of liquid or liquid-equivalent precipitation.

Observed Weather in April 2021 at Thule Air Base

History:20232022JFMAprMJJASOND20202019
Observed Weather in April 2021 at Thule Air Base1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
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
Thu, Apr 1 Light Snow, Mist0.05 in-SN, BR
Fri, Apr 2 Light Snow, Haze, Freezing Fog, Mist, Blowing Snow0.05 in-SN, HZ, FZFG, BR, BLSN
Sat, Apr 3 HazeHZ
Tue, Apr 6 Light Snow, Mist0.00 in-SN, BR
Sat, Apr 10 Freezing Fog, Mist, Blowing SnowFZFG, BR, BLSN
Sun, Apr 11 Light Snow, Freezing Fog, Mist, Light Unknown Precipitation, Blowing Snow, Squall0.00 in-SN, FZFG, BR, -UP, BLSN, SQ
Mon, Apr 12 Light Snow, Mist, Blowing Snow0.00 in-SN, BR, BLSN
Tue, Apr 13 Light Snow, Mist, Blowing Snow0.00 in-SN, BR, BLSN
Wed, Apr 21 Light Snow, Haze, Freezing Fog, Mist, Blowing Snow0.00 in-SN, HZ, FZFG, BR, BLSN
Thu, Apr 22 HazeHZ
Wed, Apr 28 SquallSQ

Hours of Daylight and Twilight in April 2021 at Thule Air Base

History:20232022JFMAprMJJASOND20202019
Hours of Daylight and Twilight in April 2021 at Thule Air Base181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrMarMay15 hr, 15 minApr 115 hr, 15 minApr 124 hr, 0 minApr 3024 hr, 0 minApr 3017 hr, 50 minApr 1117 hr, 50 minApr 1121 hr, 49 minApr 2121 hr, 49 minApr 21
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 April 2021 at Thule Air Base

History:20232022JFMAprMJJASOND20202019
Sunrise & Sunset with Twilight in April 2021 at Thule Air Base181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMMarMay1:47 AM1:47 AM1:16 AMApr 221:16 AMApr 226:03 AM6:03 AM9:18 PMApr 19:18 PMApr 14:43 AM4:43 AM10:34 PMApr 1110:34 PMApr 11
The solar day over the course of April 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 April 2021 at Thule Air Base

History:20232022JFMAprMJJASOND20202019
Solar Elevation and Azimuth in April 2021 at Thule Air BaseApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMMarMay010102000101020
northeastsouthwest
Solar elevation and azimuth over the course of April 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 April 2021 at Thule Air Base

History:20232022JFMAprMJJASOND20202019
Moon Rise, Set & Phases in April 2021 at Thule Air Base1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMMarMayMar 283:49 PMMar 283:49 PMApr 1111:31 PMApr 1111:31 PMApr 2712:32 AMApr 2712:32 AM7:58 PM7:58 PM7:24 AM7:24 AM6:48 AM6:48 AM8:54 PM8:54 PM11:03 PM11:03 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.
Apr 2021IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
83%4:38 AMS225,935 mi
2
73%5:42 AMS228,238 mi
3
61%6:47 AMS231,049 mi
4
50%7:52 AMS234,096 mi
5
38%8:54 AMS237,155 mi
6
28%9:51 AMS240,063 mi
7
19%10:44 AMS242,723 mi
8
12%10:13 AMSSE12:51 PMSSW-11:32 AMS245,091 mi
9
6%8:29 AMSE4:09 PMWSW-12:16 PMS247,152 mi
10
2%7:34 AMESE6:34 PMW-12:58 PMS248,902 mi
11
0%6:48 AME8:54 PMWNW-1:39 PMS250,334 mi
12
0%5:59 AMENE11:32 PMNW-2:19 PMS251,420 mi
13
2%4:50 AMNE--2:59 PMS252,115 mi
14
6%3:40 PMS252,351 mi
15
12%4:23 PMS252,048 mi
16
19%5:08 PMS251,130 mi
17
27%5:55 PMS249,536 mi
18
36%6:43 PMS247,246 mi
19
46%7:32 PMS244,291 mi
20
50%8:21 PMS240,775 mi
21
68%9:10 PMS236,879 mi
22
78%9:58 PMS232,861 mi
23
87%-8:26 AMNNW1:23 PMNE10:46 PMS229,043 mi
24
94%-7:03 AMWNW4:37 PMENE11:35 PMS225,780 mi
25
97%-6:06 AMW7:34 PMESE--
26
98%-5:07 AMWSW11:03 PMSE12:26 AMS223,408 mi
27
100%-3:37 AMSSW-1:20 AMS222,192 mi
28
98%2:20 AMS222,267 mi
29
93%3:24 AMS223,609 mi
30
86%4:31 AMS226,039 mi

Humidity Comfort Levels in April 2021 at Thule Air Base

History:20232022JFMAprMJJASOND20202019
Humidity Comfort Levels in April 2021 at Thule Air Base1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
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 April 2021 at Thule Air Base

History:20232022JFMAprMJJASOND20202019
Wind Speed in April 2021 at Thule Air Base181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph50 mph50 mph100 mph100 mph150 mph150 mphMarMay
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in April 2021 at Thule Air Base

History:20232022JFMAprMJJASOND20202019
Hourly Wind Speed in April 2021 at Thule Air Base1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
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 Thule Air Base

History:20232022JFMAprMJJASOND20202019
Hourly Wind Direction in 2021 at Thule Air Base1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in April 2021 at Thule Air Base

History:20232022JFMAprMJJASOND20202019
Atmospheric Pressure in April 2021 at Thule Air Base1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303029.0 inHg29.0 inHg29.5 inHg29.5 inHg30.0 inHg30.0 inHg30.5 inHg30.5 inHg31.0 inHg31.0 inHgMarMay
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 Thule Air Base1940195019601970198019902000201020201951195119521952195319531954195419551955195619561957195719581958195919591960196019611961196219621963196319641964196519651966196619671967196819681969196919701970197119711972197219731973197419741975197519761976197719771978197819791979198019801981198119821982198319831984198419851985198619861987198719881988198919891990199019911991199219921993199319941994199519951996199619971997199819981999199920002000200120012002200220032003200420042005200520062006200720072008200820092009201020102011201120122012201320132014201420152015201620162017201720182018201920192020202020212021202220222023202320242024
METARISDboth
The number of reports per month over the entire history of this station.

Number of Reports by Day in April 2021 at Thule Air Base Spring 2021

Number of Reports by Day in April 2021 at Thule Air Base18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030005050100100150150200200250250MarMay
regularspecialcorrection
The number of reports per day.

Reports by Hour in April 2021 at Thule Air Base Spring 2021

Reports by Hour in April 2021 at Thule Air Base1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
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 Thule Air Base in April 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.

Disclaimer

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