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Here are all the official SYNOP sites (03xxx group) which recorded their #warmestdayoftheyearsofar on 22nd April 2026.

@Petagna @GregDewhurst @metoffice

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Today's (22nd April) maximum temperatures and anomalies (compared to '91-'20 average) from SYNOP observations.

#Otterbourne W Wks was the warmest location with a max #temperature of 19.0C.

www.roostweather.com/ukobs/maxtemp_map.php

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22nd April minimum temperatures and anomalies (compared to '91-'20 average) from SYNOP observations.

#Shap was the coldest low-level (<=300m) location with a min #temperature of -3.0C.

www.roostweather.com/ukobs/mintemp_map.php

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Yesterday's (21st Apr) daily #sunshine totals from SYNOP observations.

#Leconfield was the sunniest location with 13.3 hours of #sun.

www.roostweather.com/ukobs/dailysunshine_map....

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Latest #UK and #ROI #heatwave map after today's (21st Apr) max #temperatures.

Map shows no. of consecutive days the heatwave threshold has been reached. When this occurs for 3 (UK) / 5 (ROI) days or more, it's a heatwave.

www.roostweather.com/ukobs/heatwave_map.php

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Here are all the official SYNOP sites (03xxx group) which recorded their #warmestdayoftheyearsofar on 21st April 2026.

@Petagna @GregDewhurst @metoffice

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Today's (21st April) maximum temperatures and anomalies (compared to '91-'20 average) from SYNOP observations.

#Scilly: St Marys Airport was the warmest location with a max #temperature of 36.7C.

www.roostweather.com/ukobs/maxtemp_map.php

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21st April minimum temperatures and anomalies (compared to '91-'20 average) from SYNOP observations.

#Shap was the coldest low-level (<=300m) location with a min #temperature of 0.1C.

www.roostweather.com/ukobs/mintemp_map.php

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Yesterday's (20th Apr) daily #sunshine totals from SYNOP observations.

#Casement Aerodrome was the sunniest location with 13.0 hours of #sun.

www.roostweather.com/ukobs/dailysunshine_map....

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Today's (20th April) maximum temperatures and anomalies (compared to '91-'20 average) from SYNOP observations.

#Northolt was the warmest location with a max #temperature of 18.2C.

www.roostweather.com/ukobs/maxtemp_map.php

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20th April minimum temperatures and anomalies (compared to '91-'20 average) from SYNOP observations.

#Katesbridge was the coldest low-level (<=300m) location with a min #temperature of -2.7C.

www.roostweather.com/ukobs/mintemp_map.php

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Yesterday's (19th Apr) daily #sunshine totals from SYNOP observations.

#Aberporth was the sunniest location with 13.1 hours of #sun.

www.roostweather.com/ukobs/dailysunshine_map....

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Today's (19th April) maximum temperatures and anomalies (compared to '91-'20 average) from SYNOP observations.

#Pershore was the warmest location with a max #temperature of 16.8C.

www.roostweather.com/ukobs/maxtemp_map.php

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19th April minimum temperatures and anomalies (compared to '91-'20 average) from SYNOP observations.

#Shap was the coldest low-level (<=300m) location with a min #temperature of -1.8C.

www.roostweather.com/ukobs/mintemp_map.php

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Yesterday's (18th Apr) daily #sunshine totals from SYNOP observations.

#Shannon Airport was the sunniest location with 12.0 hours of #sun.

www.roostweather.com/ukobs/dailysunshine_map....

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Today's (18th April) maximum temperatures and anomalies (compared to '91-'20 average) from SYNOP observations.

#Frittenden was the warmest location with a max #temperature of 18.8C.

www.roostweather.com/ukobs/maxtemp_map.php

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18th April minimum #temperatures and anomalies (compared to '91-'20 average) from SYNOP observations.

#Exeter Airport No 2, and #South Newington were the coldest low-level (<=300m) sites with a min of 1.5C.

www.roostweather.com/ukobs/mintemp_map.php

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Yesterday's (17th Apr) daily #sunshine totals from SYNOP observations.

#Saint Helier was the sunniest location with 10.6 hours of #sun.

www.roostweather.com/ukobs/dailysunshine_map....

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Here are all the official SYNOP sites (03xxx group) which recorded their #warmestdayoftheyearsofar on 17th April 2026.

@Petagna @GregDewhurst @metoffice

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Today's (17th April) maximum temperatures and anomalies (compared to '91-'20 average) from SYNOP observations.

#Wainfleet No 2 was the warmest location with a max #temperature of 19.0C.

www.roostweather.com/ukobs/maxtemp_map.php

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17th April minimum temperatures and anomalies (compared to '91-'20 average) from SYNOP observations.

#Baltasound No 2 was the coldest low-level (<=300m) location with a min #temperature of 6.0C.

www.roostweather.com/ukobs/mintemp_map.php

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Yesterday's (16th Apr) daily #sunshine totals from SYNOP observations.

#Saint Helier was the sunniest location with 10.6 hours of #sun.

www.roostweather.com/ukobs/dailysunshine_map....

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Here are all the official SYNOP sites (03xxx group) which recorded their #warmestdayoftheyearsofar on 16th April 2026.

@Petagna @GregDewhurst @metoffice

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Today's (16th April) maximum temperatures and anomalies (compared to '91-'20 average) from SYNOP observations.

#High Beach was the warmest location with a max #temperature of 21.6C.

www.roostweather.com/ukobs/maxtemp_map.php

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16th April minimum temperatures and anomalies (compared to '91-'20 average) from SYNOP observations.

#Drumnadrochit was the coldest location with a min #temperature of 4.3C.

www.roostweather.com/ukobs/mintemp_map.php

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Yesterday's (15th Apr) daily #sunshine totals from SYNOP observations.

#North Wyke was the sunniest location with 4.3 hours of #sun.

www.roostweather.com/ukobs/dailysunshine_map....

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Here are all the official SYNOP sites (03xxx group) which recorded their #warmestdayoftheyearsofar on 15th April 2026.

@Petagna @GregDewhurst @metoffice

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Today's (15th April) maximum temperatures and anomalies (compared to '91-'20 average) from SYNOP observations.

#Cambridge, Niab was the warmest location with a max #temperature of 19.6C.

www.roostweather.com/ukobs/maxtemp_map.php

Yeah sorry 😞

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15th April minimum temperatures and anomalies (compared to '91-'20 average) from SYNOP observations.

#Strathallan Airfield was the coldest low-level (<=300m) location with a min #temperature of 3.6C.

www.roostweather.com/ukobs/mintemp_map.php