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Spring 2021 Weather History at Rotterdam The Hague Airport Netherlands

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

Rotterdam The Hague Airport Temperature History in the Spring of 2021

History:202320222021202020192018201720162015
Temperature history in the Spring of 2021 at Rotterdam The Hague AirportMarAprMay10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°FWinterSummer
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 the Spring of 2021 at Rotterdam The Hague Airport

History:202320222021202020192018201720162015
Hourly Temperature in the Spring of 2021 at Rotterdam The Hague AirportMarAprMay12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMWinterSummervery coldcoldcool
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 the Spring of 2021 at Rotterdam The Hague Airport

History:202320222021202020192018201720162015
Cloud Cover in the Spring of 2021 at Rotterdam The Hague AirportMarAprMay12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMWinterSummer
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 the Spring of 2021 at Rotterdam The Hague Airport

History:202320222021202020192018201720162015
Observed Weather in the Spring of 2021 at Rotterdam The Hague AirportMarAprMay12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMWinterSummer
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
Mon, Mar 1 MistBR
Tue, Mar 2 Haze, MistHZ, BR
Wed, Mar 3 Fog, MistFG, BR
Thu, Mar 4 Drizzle, Recent Drizzle, Mist, Light Unknown PrecipitationDZ, REDZ, BR, -UP
Sat, Mar 6 Freezing Fog, MistFZFG, BR
Mon, Mar 8 Heavy Drizzle and Rain, Recent Rain, Light Rain, Light Rain and Drizzle, Drizzle, Heavy Drizzle, Light Drizzle, Recent Drizzle+DZRA, RERA, -RA, -RADZ, DZ, +DZ, -DZ, REDZ
Tue, Mar 9 Drizzle and Rain, Recent Rain, Light Rain, Light Rain and Drizzle, Drizzle, Heavy Drizzle, Recent Drizzle, Mist, Light Unknown PrecipitationDZRA, RERA, -RA, -RADZ, DZ, +DZ, REDZ, BR, -UP
Wed, Mar 10 Rain, Recent Rain, Light Rain, Light Rain and Drizzle, Showers of Light Rain, Drizzle, Heavy Drizzle, Light Drizzle, Recent Drizzle, MistRA, RERA, -RA, -RADZ, -SHRA, DZ, +DZ, -DZ, REDZ, BR
Thu, Mar 11 Light Rain, Drizzle, Light Drizzle, Recent Drizzle, Recent Drizzle and Unknown Precipitation, Mist, Light Unknown Precipitation-RA, DZ, -DZ, REDZ, REDZUP, BR, -UP
Fri, Mar 12 Recent Rain, Light Rain, Drizzle, Recent DrizzleRERA, -RA, DZ, REDZ
Sat, Mar 13 Drizzle and Rain, Recent Rain, Light Rain, Light Rain and Drizzle, Showers of Light Rain, Drizzle, Heavy Drizzle, Recent Drizzle, Light Unknown PrecipitationDZRA, RERA, -RA, -RADZ, -SHRA, DZ, +DZ, REDZ, -UP
Sun, Mar 14 Recent Rain, Light Rain, Light Rain and Drizzle, Recent DrizzleRERA, -RA, -RADZ, REDZ
Mon, Mar 15 Recent Rain, Light Rain, Light Rain and Drizzle, Showers of Light Rain, Heavy Drizzle, Light Drizzle, Recent Drizzle, Light Unknown PrecipitationRERA, -RA, -RADZ, -SHRA, +DZ, -DZ, REDZ, -UP
Tue, Mar 16 Drizzle and Rain, Recent Rain, Light Rain, Light Rain and Drizzle, Showers of Light Rain, Drizzle, Heavy Drizzle, Light Drizzle, Recent Drizzle, Light Unknown PrecipitationDZRA, RERA, -RA, -RADZ, -SHRA, DZ, +DZ, -DZ, REDZ, -UP
Wed, Mar 17 Recent Rain, Light Rain, Light Drizzle, Recent DrizzleRERA, -RA, -DZ, REDZ
Thu, Mar 18 Drizzle and Rain, Showers of Light Rain, Recent Drizzle, MistDZRA, -SHRA, REDZ, BR
Sat, Mar 20 Drizzle, Light Drizzle, Recent Drizzle, Freezing Fog, Mist, Shallow FogDZ, -DZ, REDZ, FZFG, BR, MIFG
Sun, Mar 21 Drizzle and Rain, Drizzle, Recent DrizzleDZRA, DZ, REDZ
Tue, Mar 23 MistBR
Wed, Mar 24 MistBR
Thu, Mar 25 Drizzle, MistDZ, BR
Fri, Mar 26 Drizzle and Rain, Recent Rain, Light Rain, Light Drizzle, Recent DrizzleDZRA, RERA, -RA, -DZ, REDZ
Sat, Mar 27 Recent Rain, Showers of Rain, Light Rain, Drizzle, Light Drizzle, Recent Drizzle, Light Unknown PrecipitationRERA, SHRA, -RA, DZ, -DZ, REDZ, -UP
Thu, Apr 1 MistBR
Fri, Apr 2 Recent Drizzle, Light Unknown PrecipitationREDZ, -UP
Sat, Apr 3 Light Rain-RA
Mon, Apr 5 Thunderstorm with Light Rain, Recent Snow, Recent Drizzle and Snow, Showers of Light Snow and Rain, Snow and Rain, Recent Rain, Light Rain, Light Drizzle, Recent Drizzle, Light Unknown Precipitation-TSRA, RESN, REDZSN, -SHSNRA, SNRA, RERA, -RA, -DZ, REDZ, -UP
Tue, Apr 6 Recent Thunderstorm, Recent Snow, Snow, Light Snow, Showers of Light Snow, Light Rain and Snow, Recent Drizzle and Snow, Recent Rain and Snow, Recent Snow and Rain, Showers of Light Snow and Rain, Snow and Rain, Light Rain, Light Unknown PrecipitationRETS, RESN, SN, -SN, -SHSN, -RASN, REDZSN, RERASN, RESNRA, -SHSNRA, SNRA, -RA, -UP
Wed, Apr 7 Recent Thunderstorm, Rain and Snow, Showers of Snow and Rain, Heavy Drizzle and Rain, Drizzle and Rain, Rain, Recent Rain, Recent Unknown Precipitation and Rain, Light Rain, Showers of Light Rain, Drizzle, Light Drizzle, Recent Drizzle, Light Unknown PrecipitationRETS, RASN, SHSNRA, +DZRA, DZRA, RA, RERA, REUPRA, -RA, -SHRA, DZ, -DZ, REDZ, -UP
Thu, Apr 8 Recent Rain, Light Rain and Drizzle, Showers of Light Rain, Heavy Drizzle, Light Drizzle, Recent DrizzleRERA, -RADZ, -SHRA, +DZ, -DZ, REDZ
Sat, Apr 10 Drizzle and Rain, Recent Rain, Light Drizzle and Rain, Light Rain, Light Rain and Drizzle, Showers of Light Rain, Light Drizzle, Recent DrizzleDZRA, RERA, -DZRA, -RA, -RADZ, -SHRA, -DZ, REDZ
Sun, Apr 11 Drizzle and Rain, Light Rain, Drizzle, Light Drizzle, Recent DrizzleDZRA, -RA, DZ, -DZ, REDZ
Mon, Apr 12 Showers of Snow, Light Snow, Light Rain and Snow, Recent Drizzle and Snow, Rain, Recent Rain, Light Rain, Light Rain and Drizzle, Recent DrizzleSHSN, -SN, -RASN, REDZSN, RA, RERA, -RA, -RADZ, REDZ
Tue, Apr 13 Light Unknown Precipitation-UP
Wed, Apr 14 Recent Rain, Light Rain, Light Rain and Drizzle, Recent DrizzleRERA, -RA, -RADZ, REDZ
Sun, Apr 18 Fog, Mist, Patches of FogFG, BR, BCFG
Mon, Apr 19 Recent Rain, Light Rain, Recent Drizzle, Fog, MistRERA, -RA, REDZ, FG, BR
Tue, Apr 20 Fog, MistFG, BR
Wed, Apr 21 Fog, MistFG, BR
Fri, Apr 23 Fog, MistFG, BR
Thu, Apr 29 Rain, Recent Rain, Showers of Rain, Light Rain, Light Rain and Drizzle, Showers of Light Rain, Drizzle, Light Drizzle, Recent DrizzleRA, RERA, SHRA, -RA, -RADZ, -SHRA, DZ, -DZ, REDZ
Fri, Apr 30 Heavy Drizzle and Rain, Rain, Recent Rain, Light Rain, Light Rain and Drizzle, Drizzle, Heavy Drizzle, Recent Drizzle+DZRA, RA, RERA, -RA, -RADZ, DZ, +DZ, REDZ
Sat, May 1 Light Rain, Mist, Shallow Fog-RA, BR, MIFG
Tue, May 4 Heavy Drizzle and Rain, Rain, Showers of Rain, Light Rain, Showers of Light Rain, Drizzle, Heavy Drizzle, Light Drizzle, PrecipitationIWCA58, IWCA62, IWCA23, IWCA82, IWCA61, IWCA81, IWCA52, IWCA53, IWCA51, IWCA40, IWCA21
Wed, May 5 Heavy Drizzle and Rain, Rain, Showers of Rain, Light Rain, Showers of Light Rain, Drizzle, Drizzle/Snow Grains, Light Drizzle, PrecipitationIWCA58, IWCA23, IWCA82, IWCA61, IWCA81, IWCA52, IWCA22, IWCA51, IWCA40
Thu, May 6 Recent Thunderstorm, Thunderstorm with Showers, Rain, Showers of Rain, Light Rain, Showers of Light Rain, Drizzle, Drizzle/Snow Grains, Light Drizzle, MistRETS, IWCA92, IWCA23, IWCA82, IWCA61, IWCA81, IWCA52, IWCA22, IWCA51, IWCA10
Fri, May 7 Recent Thunderstorm, Thunderstorm with Light Rain, Recent Snow and Rain, Showers of Rain and Snow, Rain, Light Drizzle and Rain, Light Rain, Heavy Drizzle, Light DrizzleRETS, -TSRA, RESNRA, SHRASN, RA, -DZRA, -RA, +DZ, -DZ
Sat, May 8 Heavy Drizzle and Rain, Light Rain, Light Drizzle, Recent Drizzle+DZRA, -RA, -DZ, REDZ
Sun, May 9 Recent Thunderstorm, Thunderstorm, Thunderstorm with Light Rain, Thunderstorm with Rain, Drizzle and Rain, Recent Rain, Light Rain, Showers of Light Rain, Recent DrizzleRETS, TS, -TSRA, TSRA, DZRA, RERA, -RA, -SHRA, REDZ
Mon, May 10 Rain, Recent Rain, Light Rain, Drizzle, Recent DrizzleRA, RERA, -RA, DZ, REDZ
Tue, May 11 Recent Thunderstorm, Thunderstorm, Thunderstorm with Light Rain, Light Drizzle, Recent DrizzleRETS, TS, -TSRA, -DZ, REDZ
Wed, May 12 Recent Rain, Showers of Rain, Light Drizzle and Rain, Light Rain, Recent DrizzleRERA, SHRA, -DZRA, -RA, REDZ
Thu, May 13 Recent Thunderstorm, Thunderstorm, Thunderstorm with Heavy Rain, Rain, Showers of Rain, Drizzle, Recent Drizzle, MistRETS, TS, +TSRA, RA, SHRA, DZ, REDZ, BR
Fri, May 14 MistBR
Sat, May 15 Recent Rain, Light Drizzle and Rain, Light Rain, Recent DrizzleRERA, -DZRA, -RA, REDZ
Sun, May 16 Showers of Rain, Light Rain, Light Rain and Drizzle, Heavy Drizzle, Recent DrizzleSHRA, -RA, -RADZ, +DZ, REDZ
Mon, May 17 Rain, Recent Rain, Light Drizzle and Rain, Light Rain, Light Drizzle, Recent DrizzleRA, RERA, -DZRA, -RA, -DZ, REDZ
Tue, May 18 Rain and Drizzle, Recent Rain, Light Rain, Light Rain and Drizzle, Recent DrizzleRADZ, RERA, -RA, -RADZ, REDZ
Wed, May 19 Recent Thunderstorm, Thunderstorm, Recent Rain, Light Rain, Drizzle, Recent Drizzle, Mist, Patches of FogRETS, TS, RERA, -RA, DZ, REDZ, BR, BCFG
Thu, May 20 Light Rain, Fog, Mist, Patches of Fog-RA, FG, BR, BCFG
Fri, May 21 Recent Rain, Light Rain and Drizzle, Recent DrizzleRERA, -RADZ, REDZ
Sat, May 22 Heavy Drizzle and Rain, Recent Rain, Showers of Rain, Light Drizzle and Rain, Light Rain, Light Rain and Drizzle, Showers of Light Rain, Drizzle, Light Drizzle, Recent Drizzle+DZRA, RERA, SHRA, -DZRA, -RA, -RADZ, -SHRA, DZ, -DZ, REDZ
Sun, May 23 Recent Thunderstorm, Thunderstorm, Thunderstorm with Light Rain, Light Rain and Drizzle, Showers of Light Rain, Heavy Drizzle, Light Drizzle, Recent DrizzleRETS, TS, -TSRA, -RADZ, -SHRA, +DZ, -DZ, REDZ
Mon, May 24 Recent Thunderstorm, Thunderstorm, Thunderstorm with Rain, Heavy Drizzle and Rain, Drizzle and Rain, Recent Rain, Light Rain, Showers of Light Rain, Drizzle, Heavy Drizzle, Light Drizzle, Recent DrizzleRETS, TS, TSRA, +DZRA, DZRA, RERA, -RA, -SHRA, DZ, +DZ, -DZ, REDZ
Tue, May 25 Thunderstorm, Drizzle and Rain, Recent Rain, Showers of Rain, Light Drizzle and Rain, Light Rain, Light Rain and Drizzle, Recent DrizzleTS, DZRA, RERA, SHRA, -DZRA, -RA, -RADZ, REDZ
Wed, May 26 Recent Thunderstorm with Rain, Thunderstorm, Thunderstorm with Light Rain, Thunderstorm with Rain, Thunderstorm with Unknown Precipitation, Drizzle and Rain, Recent Rain, Light Rain, Light Rain and Drizzle, Drizzle, Light Drizzle, Recent Drizzle, Mist, Recent Unknown PrecipitationRETSRA, TS, -TSRA, TSRA, TSUP, DZRA, RERA, -RA, -RADZ, DZ, -DZ, REDZ, BR, REUP
Thu, May 27 Light Rain and Drizzle, Drizzle, Light Drizzle-RADZ, DZ, -DZ
Fri, May 28 Fog, Mist, Patches of FogFG, BR, BCFG
Sun, May 30 MistBR

Hours of Daylight and Twilight in the Spring of 2021 at Rotterdam The Hague Airport

History:202320222021202020192018201720162015
Hours of Daylight and Twilight in the Spring of 2021 at Rotterdam The Hague AirportMarAprMay0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrWinterSummerMar 2012 hr, 7 minMar 2012 hr, 7 minnightnightdayday
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 the Spring of 2021 at Rotterdam The Hague Airport

History:202320222021202020192018201720162015
Sunrise & Sunset with Twilight and Daylight Saving Time in the Spring of 2021 at Rotterdam The Hague AirportMarAprMay2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMWinterSummer5:29 AM5:29 AMMay 319:51 PMMay 319:51 PM7:27 AM7:27 AMMar 16:22 PMMar 16:22 PM6:42 AM6:42 AMMar 216:57 PMMar 216:57 PMMar 28DSTMar 28DST
The solar day over the course of the Spring of 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. The transitions to and from daylight saving time are indicated by the 'DST' labels.

Solar Elevation and Azimuth in the Spring of 2021 at Rotterdam The Hague Airport

History:202320222021202020192018201720162015
Solar Elevation and Azimuth in the Spring of 2021 at Rotterdam The Hague AirportMarAprMay12 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 AMWinterSummer0010203040500101020304060
northeastsouthwest
Solar elevation and azimuth in the the spring of 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 the Spring of 2021 at Rotterdam The Hague Airport

History:202320222021202020192018201720162015
Moon Rise, Set & Phases in the Spring of 2021 at Rotterdam The Hague AirportMarAprMay12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMWinterSummerFeb 118:06 PMFeb 118:06 PMFeb 279:18 AMFeb 279:18 AMMar 1311:22 AMMar 1311:22 AMMar 288:49 PMMar 288:49 PMApr 124:31 AMApr 124:31 AMApr 275:32 AMApr 275:32 AMMay 119:01 PMMay 119:01 PMMay 261:15 PMMay 261:15 PMJun 1012:53 PMJun 1012:53 PMJun 248:40 PMJun 248:40 PM8:29 AM8:29 AM5:15 PM5:15 PM5:01 PM5:01 PM8:09 AM8:09 AM7:34 AM7:34 AM6:42 PM6:42 PM7:46 PM7:46 PM8:07 AM8:07 AM7:24 AM7:24 AM9:00 PM9:00 PM8:08 PM8:08 PM6:46 AM6:46 AM6:01 AM6:01 AM9:09 PM9:09 PM8:35 PM8:35 PM5:34 AM5:34 AM10:23 PM10:23 PM5:36 AM5:36 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.

Humidity Comfort Levels in the Spring of 2021 at Rotterdam The Hague Airport

History:202320222021202020192018201720162015
Humidity Comfort Levels in the Spring of 2021 at Rotterdam The Hague AirportMarAprMay12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMWinterSummer
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 the Spring of 2021 at Rotterdam The Hague Airport

History:202320222021202020192018201720162015
Wind Speed in the Spring of 2021 at Rotterdam The Hague AirportMarAprMay0 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mph60 mph60 mph70 mph70 mph80 mph80 mphWinterSummer
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in the Spring of 2021 at Rotterdam The Hague Airport

History:202320222021202020192018201720162015
Hourly Wind Speed in the Spring of 2021 at Rotterdam The Hague AirportMarAprMay12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMWinterSummer
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 Rotterdam The Hague Airport

History:202320222021202020192018201720162015
Hourly Wind Direction in 2021 at Rotterdam The Hague AirportMarAprMay12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMWinterSummer
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in the Spring of 2021 at Rotterdam The Hague Airport

History:202320222021202020192018201720162015
Atmospheric Pressure in the Spring of 2021 at Rotterdam The Hague AirportMarAprMay29.0 inHg29.0 inHg29.5 inHg29.5 inHg30.0 inHg30.0 inHg30.5 inHg30.5 inHg31.0 inHg31.0 inHgWinterSummer
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 Rotterdam The Hague Airport19401950196019701980199020002010202019571957195819581959195919731973197419741975197519761976197719771978197819791979198019801981198119821982198319831984198419851985198619861987198719881988198919891990199019911991199219921993199319941994199519951996199619971997199819981999199920002000200120012002200220032003200420042005200520062006200720072008200820092009201020102011201120122012201320132014201420152015201620162017201720182018201920192020202020212021202220222023202320242024
METARISDboth
The number of reports per month over the entire history of this station.

Number of Reports by Day in the Spring of 2021 at Rotterdam The Hague Airport 2021

Number of Reports by Day in the Spring of 2021 at Rotterdam The Hague AirportMarAprMay005050100100WinterSummer
regularspecialcorrection
The number of reports per day.

Reports by Hour in the Spring of 2021 at Rotterdam The Hague Airport 2021

Reports by Hour in the Spring of 2021 at Rotterdam The Hague AirportMarAprMay12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMWinterSummer
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 Rotterdam The Hague Airport in the spring of 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

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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