Tuesday, July 19, 2022
Dates on which the temperature at Hampstead reached 30°C
| | Jun | Jul | Aug | Sep |
| 2010 | 27 | 9/10 | | |
| 2011 | 27 | | | |
| 2012 | | 25 | 18 | |
| 2013 | | 13 15/16/17 22 | 1 | |
| 2014 | | 18 | | |
| 2015 | | 1 | 22 | |
| 2016 | | 18/19/20 | 24 | 13 |
| 2017 | 17/18/19/20/21 | 6 | | |
| 2018 | | 5/6/7/8 15 23 25/26/27 | 2/3 6/7 | |
| 2019 | 29 | 23/24/25 | 25/26/27 | |
| 2020 | 24/25/26 | 31 | 7/8/9/10/11/12 | |
| 2021 | | 18/19/20 | | |
| 2022 | 17 | 11/12 17/18/19 | 11/12/13/14 | |
» in red: reached 33°C
» in red & bold: reached 35°C
» in red & bold & underlined: reached 37°C
Maximum annual temperature
| 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 |
| 31°C | 31°C | 30°C | 32°C | 31°C | 34°C | 32°C | 33°C | 33°C | 36°C | 36°C | 31°C | 39°C |
• The temperature's reached 30°C at least once every year since 2010
• The temperature's reached 33°C ten times since 2010
• The temperature's reached 35°C five times since 2010
• The temperature's reached 37°C once, and 39°C once
• Only once were there six consecutive days above 30°C (and once five)
• Of all the days with 30°C+ temperatures, over half have occurred in July
n.b. Hampstead's usually a bit cooler than other less elevated London weather stations.
e.g. On 25th July 2019 Hampstead reached 36.8°C but Kew and Heathrow reached 37.9°C.
UK's highest recorded temperature (successive records)
36.7°C 9th August 1911: Raunds/Epsom/Canterbury
37.1°C 3rd August 1990: Cheltenham
38.5°C 10th August 2003: Faversham
38.7°C 25th July 2019: Cambridge
40.3°C 19th July 2022: Coningsby
The UK's five hottest days on record
today, 25/7/2019, 10/8/2003, yesterday, 31/7/2020
UK's highest temperature by country
England: 40.3°C (today) (previous record 38.7°C in 2019)
Wales: 37.1°C (yesterday) (previous record 35.2°C in 1990)
Scotland: 34.8°C (today) (previous record 32.9°C in 2013)
Northern Ireland: 31.3°C (21st July 2021)
Number of 'tropical nights' per decade
(overnight temperature failed to drop below 20°C somewhere in the UK)
1960s: 5
1970s: 18
1980s: 17
1990s: 33
2000s: 33
2010s: 20
2020s: 12 so far
UK's highest temperature by month
Jan: 18.3°C (record from 2003)
Feb: 21.2°C (record from 2019)
Mar: 25.6°C (record from 1968)
Apr: 29.4°C (record from 1949)
May: 32.8°C (record from 1944)
Jun: 35.6°C (record from 1976)
Jul: 40.3°C (record from 2022)
Aug: 38.5°C (record from 2003)
Sep: 35.6°C (record from 1906)
Oct: 29.9°C (record from 2011)
Nov: 22.4°C (record from 2015)
Dec: 18.7°C (record from 2019)
Atmospheric CO2
1820: 284ppm
1870: 288ppm
1920: 303ppm (up 19ppm in 100 years)
1970: 325ppm
1980: 338ppm
1990: 354ppm
2000: 369ppm
2010: 390ppm
2020: 414ppm (up 24ppm in 10 years)
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