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April 1978 Weather History at Lisbon Humberto Delgado Airport Portugal

This report shows the past weather for Lisbon Humberto Delgado Airport, providing a weather history for April 1978. It features all historical weather data series we have available, including the Lisbon Humberto Delgado Airport temperature history for April 1978. You can drill down from year to month and even day level reports by clicking on the graphs.

Lisbon Humberto Delgado Airport Temperature History April 1978

History:19801979JFMAprMJJASOND19771976
Temperature history in April 1978 at Lisbon Humberto Delgado Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303040°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°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 1978 at Lisbon Humberto Delgado Airport

History:19801979JFMAprMJJASOND19771976
Hourly Temperature in April 1978 at Lisbon Humberto Delgado Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMaycoldcool
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 1978 at Lisbon Humberto Delgado Airport

History:19801979JFMAprMJJASOND19771976
Cloud Cover in April 1978 at Lisbon Humberto Delgado Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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.

Observed Weather in April 1978 at Lisbon Humberto Delgado Airport

History:19801979JFMAprMJJASOND19771976
Observed Weather in April 1978 at Lisbon Humberto Delgado Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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
Sat, Apr 1 Light Drizzle and Rain, Light Intermittent Rain, Light Rain, Drizzle, Light Drizzle, Light Intermittent Drizzle-DZRA, IWC58, IWC60, -RA, IWC61, IWC53, -DZ, IWC51, IWC50
Mon, Apr 3 Drizzle/Snow GrainsIWC20
Tue, Apr 4 Rain, Light Rain, Showers of Light RainRA, -RA, -SHRA
Wed, Apr 5 Showers of Rain, Light Rain, Showers of Light Rain, Fog, Mist, Sky-Obscuring FogIWC25, -RA, IWC80, FG, IWC44, BR, IWC10, IWC45
Sat, Apr 8 Showers of Light Rain, Haze, Mist-SHRA, IWC80, IWC05, BR, IWC10
Mon, Apr 10 Light Drizzle and Rain, Light Intermittent Rain, Light Rain, Drizzle/Snow Grains, Mist-DZRA, IWC58, IWC60, -RA, IWC61, IWC20, BR, IWC10
Sun, Apr 16 Light Drizzle, Mist-DZ, BR
Mon, Apr 17 Light Drizzle, Fog, Mist-DZ, FG, BR
Tue, Apr 18 Light Drizzle, Mist, Patches of Fog-DZ, BR, BCFG
Wed, Apr 19 MistBR
Thu, Apr 20 Light Drizzle, Mist-DZ, BR
Fri, Apr 21 Light Drizzle-DZ
Sat, Apr 22 MistBR
Sun, Apr 23 Light Drizzle, Mist-DZ, BR
Mon, Apr 24 Light Rain, Showers of Light Rain, Mist-RA, -SHRA, BR
Tue, Apr 25 Rain, Light Drizzle, Light Intermittent Drizzle, MistIWC21, -DZ, IWC51, IWC50, BR, IWC10
Wed, Apr 26 Light Drizzle and Rain, Light Rain, Showers of Light Rain-DZRA, -RA, -SHRA
Thu, Apr 27 Showers of Light Rain-SHRA
Fri, Apr 28 Thunderstorm with Rain, Light Intermittent Rain, Light Rain, Showers of Light RainTSRA, IWC92, IWC60, -RA, IWC61, -SHRA, IWC80
Sat, Apr 29 Showers of Rain, Showers of Light Rain, Duststorm/Sandstorm, SandstormIWC25, -SHRA, IWC80, IWC30, SS
Sun, Apr 30 Showers of Light Rain-SHRA

Hours of Daylight and Twilight in April 1978 at Lisbon Humberto Delgado Airport

History:19801979JFMAprMJJASOND19771976
Hours of Daylight and Twilight in April 1978 at Lisbon Humberto Delgado Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrMarMaynightnightdaydayApr 112 hr, 38 minApr 112 hr, 38 minApr 3013 hr, 47 minApr 3013 hr, 47 minApr 1113 hr, 2 minApr 1113 hr, 2 minApr 2113 hr, 26 minApr 2113 hr, 26 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 and Daylight Saving Time in April 1978 at Lisbon Humberto Delgado Airport

History:19801979JFMAprMJJASOND19771976
Sunrise & Sunset with Twilight and Daylight Saving Time in April 1978 at Lisbon Humberto Delgado Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMMarMay6:22 AM6:22 AMApr 16:59 PMApr 16:59 PM6:40 AM6:40 AMApr 308:27 PMApr 308:27 PM7:06 AM7:06 AMApr 118:09 PMApr 118:09 PM6:52 AM6:52 AMApr 218:18 PMApr 218:18 PMApr 2DSTApr 2DST
The solar day over the course of April 1978. 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 transitions to and from daylight saving time are indicated by the 'DST' labels.

Solar Elevation and Azimuth in April 1978 at Lisbon Humberto Delgado Airport

History:19801979JFMAprMJJASOND19771976
Solar Elevation and Azimuth in April 1978 at Lisbon Humberto Delgado AirportApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMMarMay0010202030304050506000101020303040405060
northeastsouthwest
Solar elevation and azimuth over the course of April 1978. 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 1978 at Lisbon Humberto Delgado Airport

History:19801979JFMAprMJJASOND19771976
Moon Rise, Set & Phases in April 1978 at Lisbon Humberto Delgado Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMMarMayApr 74:15 PMApr 74:15 PMApr 235:11 AMApr 235:11 AMMay 75:47 AMMay 75:47 AM7:08 AM7:08 AM8:08 PM8:08 PM7:46 PM7:46 PM7:08 AM7:08 AM6:54 AM6:54 AM8:56 PM8:56 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 1978IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
42%2:08 AMESE12:40 PMWSW-7:24 AMS230,050 mi
2
34%3:57 AMESE2:45 PMWSW-2:00 AME230,377 mi
3
21%4:41 AMESE3:51 PMWSW-10:16 AMS231,421 mi
4
12%5:21 AME4:57 PMW-11:08 AMS232,654 mi
5
6%5:58 AME6:02 PMW-11:59 AMS234,282 mi
6
2%6:33 AME7:06 PMW-12:48 PMS236,298 mi
7
0%7:08 AME8:08 PMW-1:37 PMS238,645 mi
8
1%7:43 AME9:10 PMWNW-2:24 PMS241,212 mi
9
4%8:19 AMENE10:09 PMWNW-3:12 PMS243,843 mi
10
9%8:57 AMENE11:06 PMWNW-4:00 PMS246,344 mi
11
16%9:38 AMENE--4:48 PMS248,513 mi
12
24%-12:00 AMWNW10:22 AMENE5:36 PMS250,157 mi
13
33%-12:51 AMWNW11:08 AMENE6:23 PMS251,112 mi
14
42%-1:38 AMWNW11:57 AMENE7:10 PMS251,267 mi
15
50%-2:21 AMWNW12:49 PMENE7:56 PMS250,569 mi
16
62%-3:01 AMWNW1:43 PMENE8:42 PMS249,039 mi
17
71%-3:38 AMWNW2:39 PMENE9:28 PMS246,766 mi
18
80%-4:13 AMWNW3:36 PME10:13 PMS243,907 mi
19
88%-4:46 AMW4:36 PME10:59 PMS240,677 mi
20
94%-5:20 AMW5:37 PME11:47 PMS237,335 mi
21
96%-5:54 AMW6:41 PME--
22
98%-6:29 AMW7:46 PME12:36 AMS234,155 mi
23
100%-7:08 AMWSW8:53 PMESE1:27 AMS231,400 mi
24
99%-7:50 AMWSW10:00 PMESE2:22 AMS229,284 mi
25
95%-8:38 AMWSW11:06 PMESE3:19 AMS227,939 mi
26
88%-9:31 AMWSW-4:19 AMS227,403 mi
27
80%12:08 AMESE10:30 AMWSW-5:19 AMS227,623 mi
28
69%1:05 AMESE11:33 AMWSW-6:19 AMS228,478 mi
29
50%1:56 AMESE12:38 PMWSW-7:17 AMS229,815 mi
30
45%2:42 AMESE1:44 PMWSW-8:12 AMS231,485 mi

Humidity Comfort Levels in April 1978 at Lisbon Humberto Delgado Airport

History:19801979JFMAprMJJASOND19771976
Humidity Comfort Levels in April 1978 at Lisbon Humberto Delgado Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 1978 at Lisbon Humberto Delgado Airport

History:19801979JFMAprMJJASOND19771976
Wind Speed in April 1978 at Lisbon Humberto Delgado Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph5 mph5 mph10 mph10 mph15 mph15 mph20 mph20 mph25 mph25 mph30 mph30 mph35 mph35 mph40 mph40 mphMarMay
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in April 1978 at Lisbon Humberto Delgado Airport

History:19801979JFMAprMJJASOND19771976
Hourly Wind Speed in April 1978 at Lisbon Humberto Delgado Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 1978 at Lisbon Humberto Delgado Airport

History:19801979JFMAprMJJASOND19771976
Hourly Wind Direction in 1978 at Lisbon Humberto Delgado Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 1978 at Lisbon Humberto Delgado Airport

History:19801979JFMAprMJJASOND19771976
Atmospheric Pressure in April 1978 at Lisbon Humberto Delgado Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303029.4 inHg29.4 inHg29.6 inHg29.6 inHg29.8 inHg29.8 inHg30.0 inHg30.0 inHg30.2 inHg30.2 inHg30.4 inHg30.4 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 Lisbon Humberto Delgado Airport194019501960197019801990200020102020194819481949194919501950195119511952195219531953195419541955195519561956195719571958195819591959196019601961196119731973197419741975197519761976197719771978197819791979198019801981198119821982198319831984198419851985198619861987198719881988198919891990199019911991199219921993199319941994199519951996199619971997199819981999199920002000200120012002200220032003200420042005200520062006200720072008200820092009201020102011201120122012201320132014201420152015201620162017201720182018201920192020202020212021202220222023202320242024
METARISDboth
The number of reports per month over the entire history of this station.

Number of Reports by Day in April 1978 at Lisbon Humberto Delgado Airport Spring 1978

Number of Reports by Day in April 1978 at Lisbon Humberto Delgado Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030002020404060608080MarMay
regularspecialcorrection
The number of reports per day.

Reports by Hour in April 1978 at Lisbon Humberto Delgado Airport Spring 1978

Reports by Hour in April 1978 at Lisbon Humberto Delgado Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 Lisbon Humberto Delgado Airport in April 1978.

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

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.

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