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Fall 1975 Weather History at London Heathrow Airport United Kingdom

This report shows the past weather for London Heathrow Airport, providing a weather history for the fall of 1975. It features all historical weather data series we have available, including the London Heathrow Airport temperature history for the fall of 1975. You can drill down from year to month and even day level reports by clicking on the graphs.

London Heathrow Airport Temperature History in the Fall of 1975

History:197919781977197619751974197319721958
Temperature history in the Fall of 1975 at London Heathrow AirportSepOctNov20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FSummerWinter
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 Fall of 1975 at London Heathrow Airport

History:197919781977197619751974197319721958
Hourly Temperature in the Fall of 1975 at London Heathrow AirportSepOctNov12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSummerWintercoldcoolvery cold
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 Fall of 1975 at London Heathrow Airport

History:197919781977197619751974197319721958
Cloud Cover in the Fall of 1975 at London Heathrow AirportSepOctNov12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSummerWinter
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 Fall of 1975 at London Heathrow Airport

History:197919781977197619751974197319721958
Observed Weather in the Fall of 1975 at London Heathrow AirportSepOctNov12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSummerWinter
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, Sep 1 Drizzle, Mist, SmokeDZ, BR, FU
Tue, Sep 2 DrizzleDZ
Wed, Sep 3 Light Rain, Drizzle-RA, DZ
Mon, Sep 8 Fog, Fog in the VicinityFG, VCFG
Tue, Sep 9 Light Drizzle and Rain, Light Rain, Showers of Light Rain, Light Drizzle-DZRA, -RA, -SHRA, -DZ
Thu, Sep 11 Light Rain, Showers of Light Rain-RA, -SHRA
Fri, Sep 12 Showers of Rain, Showers of Light RainSHRA, -SHRA
Sat, Sep 13 Heavy Rain, Rain, Light Rain+RA, RA, -RA
Sun, Sep 14 Heavy Rain, Rain, Light Rain+RA, RA, -RA
Mon, Sep 15 Thunderstorm with Heavy Hail, Heavy Rain+TSGR, +RA
Tue, Sep 16 Heavy Rain, Rain, Light Rain+RA, RA, -RA
Wed, Sep 17 Light Rain, Mist-RA, BR
Thu, Sep 18 Light Rain, Showers of Light Rain-RA, -SHRA
Fri, Sep 19 Light Rain-RA
Sat, Sep 20 Light Rain, Drizzle, Light Drizzle-RA, DZ, -DZ
Mon, Sep 22 Shallow Patches of FogMIBCFG
Tue, Sep 23 Light Drizzle-DZ
Wed, Sep 24 MistBR
Thu, Sep 25 Heavy Rain, Rain, Light Drizzle and Rain, Light Rain, Light Drizzle+RA, RA, -DZRA, -RA, -DZ
Fri, Sep 26 Light Rain-RA
Sat, Sep 27 Heavy Rain, Rain, Light Rain, Showers of Light Rain+RA, RA, -RA, -SHRA
Sun, Sep 28 Light Rain-RA
Mon, Sep 29 Drizzle and Rain, Light Rain, Showers of Light RainDZRA, -RA, -SHRA
Tue, Sep 30 Drizzle and Rain, Showers of Rain, Light Rain, Showers of Light Rain, Light DrizzleDZRA, SHRA, -RA, -SHRA, -DZ
Wed, Oct 1 Thunderstorm, Thunderstorm with Rain, Rain, Light Rain, Showers of Light RainTS, TSRA, RA, -RA, -SHRA
Thu, Oct 2 Rain, Light Drizzle and Rain, Light Rain, Showers of Light Rain, Light Drizzle, Fog in the VicinityRA, -DZRA, -RA, -SHRA, -DZ, VCFG
Mon, Oct 6 Showers of Light Rain, Light Drizzle-SHRA, -DZ
Tue, Oct 7 Mist, Shallow Patches of FogBR, MIBCFG
Thu, Oct 9 Light Rain, Drizzle, Mist, Shallow Patches of Fog-RA, DZ, BR, MIBCFG
Fri, Oct 10 Rain, Light Rain, Showers of Light Rain, DrizzleRA, -RA, -SHRA, DZ
Sat, Oct 11 Showers of Light Rain-SHRA
Sun, Oct 12 Showers of Light Rain-SHRA
Mon, Oct 13 Light Rain-RA
Tue, Oct 14 Light Drizzle and Rain, Light Rain, Mist, Shallow Patches of Fog-DZRA, -RA, BR, MIBCFG
Wed, Oct 15 Showers of Light Rain-SHRA
Thu, Oct 16 Light Rain, Showers of Light Rain, Mist, Shallow Fog, Shallow Patches of Fog-RA, -SHRA, BR, MIFG, MIBCFG
Fri, Oct 17 Heavy Rain, Rain, Light Rain, Light Drizzle, Mist+RA, RA, -RA, -DZ, BR
Sat, Oct 18 Drizzle, MistDZ, BR
Sun, Oct 19 Drizzle, Fog, Mist, Patches of Fog, Shallow Patches of FogDZ, FG, BR, BCFG, MIBCFG
Mon, Oct 20 DrizzleDZ
Tue, Oct 21 DrizzleDZ
Wed, Oct 22 Drizzle, Mist, Shallow Patches of FogDZ, BR, MIBCFG
Thu, Oct 23 Mist, Shallow Patches of FogBR, MIBCFG
Fri, Oct 24 Drizzle, Fog, Mist, Patches of Fog, Shallow Patches of FogDZ, FG, BR, BCFG, MIBCFG
Sat, Oct 25 Drizzle, Light DrizzleDZ, -DZ
Sun, Oct 26 DrizzleDZ
Mon, Oct 27 Drizzle, Fog, Patches of FogDZ, FG, BCFG
Tue, Oct 28 Drizzle, FogDZ, FG
Wed, Oct 29 Drizzle, Fog, Fog in the Vicinity, Mist, Patches of FogDZ, FG, VCFG, BR, BCFG
Thu, Oct 30 Fog in the Vicinity, MistVCFG, BR
Fri, Oct 31 Light Drizzle, Fog in the Vicinity, Mist-DZ, VCFG, BR
Sat, Nov 1 Heavy Rain, Light Rain, Showers of Light Rain, Shallow Patches of Fog+RA, -RA, -SHRA, MIBCFG
Mon, Nov 3 Rain, Light Drizzle and Rain, Light Rain, DrizzleRA, -DZRA, -RA, DZ
Tue, Nov 4 Drizzle, Mist, Patches of Fog, Shallow Patches of FogDZ, BR, BCFG, MIBCFG
Wed, Nov 5 Light Rain, Smoke-RA, FU
Thu, Nov 6 Light Rain, Smoke-RA, FU
Sat, Nov 8 Light Rain, Showers of Light Rain, Drizzle-RA, -SHRA, DZ
Sun, Nov 9 DrizzleDZ
Mon, Nov 10 Light Rain, Drizzle, Light Drizzle-RA, DZ, -DZ
Tue, Nov 11 DrizzleDZ
Wed, Nov 12 DrizzleDZ
Thu, Nov 13 DrizzleDZ
Fri, Nov 14 Fog, Freezing Fog, MistFG, FZFG, BR
Sat, Nov 15 Drizzle and Rain, Rain, Light Drizzle and Rain, Light Rain, Drizzle, Light Drizzle, Fog, MistDZRA, RA, -DZRA, -RA, DZ, -DZ, FG, BR
Sun, Nov 16 Heavy Rain, Rain, Light Rain, Showers of Light Rain+RA, RA, -RA, -SHRA
Mon, Nov 17 Rain, Light RainRA, -RA
Wed, Nov 19 Heavy Rain, Rain, Light Drizzle and Rain, Light Rain, Light Drizzle+RA, RA, -DZRA, -RA, -DZ
Thu, Nov 20 Light Drizzle and Rain, Light Rain-DZRA, -RA
Fri, Nov 21 DrizzleDZ
Sat, Nov 22 Drizzle, Mist, Shallow Patches of FogDZ, BR, MIBCFG
Sun, Nov 23 Mist, Shallow Patches of FogBR, MIBCFG
Tue, Nov 25 Rain, Light Drizzle and Rain, Light RainRA, -DZRA, -RA
Wed, Nov 26 Light Drizzle and Rain, Light Rain, Light Drizzle, Patches of Fog, Shallow Patches of Fog-DZRA, -RA, -DZ, BCFG, MIBCFG
Thu, Nov 27 Rain, Light Drizzle and Rain, Light RainRA, -DZRA, -RA
Fri, Nov 28 Heavy Rain, Rain, Light Rain, Showers of Light Rain+RA, RA, -RA, -SHRA
Sat, Nov 29 Fog, Fog in the Vicinity, MistFG, VCFG, BR
Sun, Nov 30 FogFG

Hours of Daylight and Twilight in the Fall of 1975 at London Heathrow Airport

History:197919781977197619751974197319721958
Hours of Daylight and Twilight in the Fall of 1975 at London Heathrow AirportSepOctNov0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrSummerWinterSep 2312 hr, 11 minSep 2312 hr, 11 minnightnightdaydayNov 308 hr, 15 minNov 308 hr, 15 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 the Fall of 1975 at London Heathrow Airport

History:197919781977197619751974197319721958
Sunrise & Sunset with Twilight and Daylight Saving Time in the Fall of 1975 at London Heathrow AirportSepOctNov12 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 AMSummerWinter6:13 AM6:13 AMSep 17:49 PMSep 17:49 PM7:42 AM7:42 AMNov 303:57 PMNov 303:57 PM6:45 AM6:45 AMSep 217:04 PMSep 217:04 PMDSTOct 26DSTOct 26
The solar day over the course of the Fall of 1975. 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 Fall of 1975 at London Heathrow Airport

History:197919781977197619751974197319721958
Solar Elevation and Azimuth in the Fall of 1975 at London Heathrow AirportSepOctNov12 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 AMSummerWinter0020300010103040
northeastsouthwest
Solar elevation and azimuth in the the fall of 1975. 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 Fall of 1975 at London Heathrow Airport

History:197919781977197619751974197319721958
Moon Rise, Set & Phases in the Fall of 1975 at London Heathrow AirportSepOctNov12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSummerWinterAug 712:58 PMAug 712:58 PMAug 218:48 PMAug 218:48 PMSep 58:19 PMSep 58:19 PMSep 2012:51 PMSep 2012:51 PMOct 54:23 AMOct 54:23 AMOct 206:06 AMOct 206:06 AMNov 31:05 PMNov 31:05 PMNov 1810:29 PMNov 1810:29 PMDec 312:50 AMDec 312:50 AMDec 182:40 PMDec 182:40 PM8:11 PM8:11 PM7:34 PM7:34 PM6:46 AM6:46 AM5:52 AM5:52 AM7:03 PM7:03 PM6:40 PM6:40 PM7:50 AM7:50 AM6:23 PM6:23 PM5:27 PM5:27 PM7:51 AM7:51 AM6:48 AM6:48 AM4:25 PM4:25 PM3:55 PM3:55 PM7:52 AM7:52 AM8:01 AM8:01 AM4:10 PM4:10 PM8:24 AM8:24 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 Fall of 1975 at London Heathrow Airport

History:197919781977197619751974197319721958
Humidity Comfort Levels in the Fall of 1975 at London Heathrow AirportSepOctNov12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSummerWinter
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 Fall of 1975 at London Heathrow Airport

History:197919781977197619751974197319721958
Wind Speed in the Fall of 1975 at London Heathrow AirportSepOctNov0 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mph60 mph60 mphSummerWinter
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in the Fall of 1975 at London Heathrow Airport

History:197919781977197619751974197319721958
Hourly Wind Speed in the Fall of 1975 at London Heathrow AirportSepOctNov12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSummerWinter
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 1975 at London Heathrow Airport

History:197919781977197619751974197319721958
Hourly Wind Direction in 1975 at London Heathrow AirportSepOctNov12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSummerWinter
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in the Fall of 1975 at London Heathrow Airport

History:197919781977197619751974197319721958
Atmospheric Pressure in the Fall of 1975 at London Heathrow AirportSepOctNov29.0 inHg29.0 inHg29.5 inHg29.5 inHg30.0 inHg30.0 inHg30.5 inHg30.5 inHgSummerWinter
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 London Heathrow Airport194019501960197019801990200020102020194819481949194919501950195119511952195219531953195419541955195519561956195719571958195819731973197419741975197519761976197719771978197819791979198019801981198119821982198319831984198419851985198619861987198719881988198919891990199019911991199219921993199319941994199519951996199619971997199819981999199920002000200120012002200220032003200420042005200520062006200720072008200820092009201020102011201120122012201320132014201420152015201620162017201720182018201920192020202020212021202220222023202320242024
METARISDboth
The number of reports per month over the entire history of this station.

Number of Reports by Day in the Fall of 1975 at London Heathrow Airport 1975

Number of Reports by Day in the Fall of 1975 at London Heathrow AirportSepOctNov005050100100SummerWinter
regularspecialcorrection
The number of reports per day.

Reports by Hour in the Fall of 1975 at London Heathrow Airport 1975

Reports by Hour in the Fall of 1975 at London Heathrow AirportSepOctNov12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSummerWinter
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 London Heathrow Airport in the fall of 1975.

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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