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Built 2026-10-14 (14 October 2026)

Extreme Weather Events in 2020

176 extreme weather events began in 2020, with 86,398 station records set across them, from heat waves to snow events.

Data as of . Last revised (2026-10-12).

Key Facts

  • 176 extreme weather events began in 2020, with 86,398 station records in total.
  • Heat waves: 39.
  • Cold outbreaks: 25.
  • Extreme rain events: 104.
  • Snow events: 8.

Events That Began in 2020

Events that began in 2020
EventTypeDatesRecordsStationsTop significance
Cold outbreak in Spain and 6 other countries, 30 December 2020 to 20 January 2021cold outbreak30 December 2020 to 20 January 20212799450 of 100 (Notable)
Extreme rain in United States and Mexico, 27 December 2020 to 4 January 2021extreme rain event27 December 2020 to 4 January 202169263372 of 100 (Major)
Extreme rain in Sweden and 2 other countries, 26 December 2020 to 2 January 2021extreme rain event26 December 2020 to 2 January 202125619072 of 100 (Major)
Heat wave in Mali and 8 other countries, 26 December 2020 to 14 January 2021heat wave26 December 2020 to 14 January 20213395738 of 100 (Notable)
Extreme rain in United States, 24 to 27 December 2020extreme rain event24 to 27 December 202025924982 of 100 (Exceptional)
Snow event in United States, 24 December 2020 to 5 January 2021snow event24 December 2020 to 5 January 202135228777 of 100 (Major)
Cold outbreak in China and 8 other countries, 22 December 2020 to 14 January 2021cold outbreak22 December 2020 to 14 January 202169030547 of 100 (Notable)
Extreme rain in Netherlands and 5 other countries, 20 to 24 December 2020extreme rain event20 to 24 December 202044630880 of 100 (Exceptional)
Extreme rain in Australia, 19 December 2020 to 11 January 2021extreme rain event19 December 2020 to 11 January 202169752780 of 100 (Exceptional)
Snow event in United States, 15 to 29 December 2020snow event15 to 29 December 2020634287100 of 100 (Exceptional)
Heat wave in Australia, 13 to 24 December 2020heat wave13 to 24 December 20201278542 of 100 (Notable)
Cold outbreak in United States, 11 to 16 December 2020cold outbreak11 to 16 December 202016413134 of 100 (Routine)
Extreme rain in Australia, 11 to 24 December 2020extreme rain event11 to 24 December 202078055280 of 100 (Exceptional)
Extreme rain in United States, 11 to 18 December 2020extreme rain event11 to 18 December 202031730964 of 100 (Major)
Snow event in United States, 10 to 24 December 2020snow event10 to 24 December 202030919477 of 100 (Major)
Cold outbreak in Uzbekistan and 3 other countries, 5 to 17 December 2020cold outbreak5 to 17 December 20201043540 of 100 (Notable)
Extreme rain in Australia, 5 to 15 December 2020extreme rain event5 to 15 December 202014510382 of 100 (Exceptional)
Heat wave in Niger and 6 other countries, 3 to 23 December 2020heat wave3 to 23 December 20201854436 of 100 (Notable)
Extreme rain in Australia, 2 to 8 December 2020extreme rain event2 to 8 December 202013613274 of 100 (Major)
Cold outbreak in United States and Mexico, 28 November to 7 December 2020cold outbreak28 November to 7 December 202018815842 of 100 (Notable)
Extreme rain in United States and Mexico, 25 November to 3 December 2020extreme rain event25 November to 3 December 202032331174 of 100 (Major)
Extreme rain in United States, 24 to 26 November 2020extreme rain event24 to 26 November 202015214166 of 100 (Major)
Extreme rain in Australia, 22 to 24 November 2020extreme rain event22 to 24 November 202014113663 of 100 (Major)
Cold outbreak in Uzbekistan and 7 other countries, 16 to 25 November 2020cold outbreak16 to 25 November 20202015541 of 100 (Notable)
Extreme rain in Norway and 4 other countries, 15 to 22 November 2020extreme rain event15 to 22 November 202024120260 of 100 (Major)
Extreme rain in United States, 11 to 13 November 2020extreme rain event11 to 13 November 202027025578 of 100 (Major)
Extreme rain in Australia, 9 to 11 November 2020extreme rain event9 to 11 November 202012312176 of 100 (Major)
Heat wave in Australia, 9 to 20 November 2020heat wave9 to 20 November 202019411351 of 100 (Notable)
Heat wave in China and 8 other countries, 5 to 24 November 2020heat wave5 to 24 November 20201,22147846 of 100 (Notable)
Cold outbreak in United States, 4 to 15 November 2020cold outbreak4 to 15 November 20201,62787050 of 100 (Notable)
Extreme rain in United States, 3 to 19 November 2020extreme rain event3 to 19 November 202076766680 of 100 (Exceptional)
Extreme rain in Sweden and 3 other countries, 31 October to 6 November 2020extreme rain event31 October to 6 November 202017315678 of 100 (Major)
Snow event in United States, 30 October to 5 November 2020snow event30 October to 5 November 20201599775 of 100 (Major)
Extreme rain in Australia, 29 October to 4 November 2020extreme rain event29 October to 4 November 202022220268 of 100 (Major)
Heat wave in China and 2 other countries, 23 October to 5 November 2020heat wave23 October to 5 November 20201493939 of 100 (Notable)
Extreme rain in Australia, 21 October to 2 November 2020extreme rain event21 October to 2 November 202075760277 of 100 (Major)
Extreme rain in Sweden and 4 other countries, 16 to 23 October 2020extreme rain event16 to 23 October 202016514563 of 100 (Major)
Extreme rain in United States, 16 October to 1 November 2020extreme rain event16 October to 1 November 20201,3261,09484 of 100 (Exceptional)
Cold outbreak in United States and Mexico, 13 October to 5 November 2020cold outbreak13 October to 5 November 20209,8412,60867 of 100 (Major)
Cold outbreak in Spain and 6 other countries, 11 to 20 October 2020cold outbreak11 to 20 October 20201418636 of 100 (Notable)
Extreme rain in Germany and 8 other countries, 11 to 15 October 2020extreme rain event11 to 15 October 202014812280 of 100 (Exceptional)
Extreme rain in United States, 9 to 14 October 2020extreme rain event9 to 14 October 202027021267 of 100 (Major)
Extreme rain in United States, 8 to 14 October 2020extreme rain event8 to 14 October 202027125780 of 100 (Exceptional)
Extreme rain in Netherlands and 2 other countries, 4 to 11 October 2020extreme rain event4 to 11 October 202011610845 of 100 (Notable)
Extreme rain in Sweden and 4 other countries, 4 to 12 October 2020extreme rain event4 to 12 October 202025921768 of 100 (Major)
Extreme rain in Australia, 3 to 10 October 2020extreme rain event3 to 10 October 202068253580 of 100 (Exceptional)
Heat wave in Australia, 2 to 8 October 2020heat wave2 to 8 October 20201358547 of 100 (Notable)
Extreme rain in United Kingdom and 4 other countries, 30 September to 5 October 2020extreme rain event30 September to 5 October 20201097970 of 100 (Major)
Extreme rain in Australia, 23 to 28 September 2020extreme rain event23 to 28 September 202011711669 of 100 (Major)
Heat wave in China and 4 other countries, 23 September to 22 October 2020heat wave23 September to 22 October 20203075834 of 100 (Routine)
Cold outbreak in Germany and 12 other countries, 22 September to 3 October 2020cold outbreak22 September to 3 October 202030925346 of 100 (Notable)
Extreme rain in Germany and 19 other countries, 22 to 29 September 2020extreme rain event22 to 29 September 202051145574 of 100 (Major)
Extreme rain in United States, 22 to 27 September 2020extreme rain event22 to 27 September 202017313355 of 100 (Notable)
Extreme rain in United States, 21 to 26 September 2020extreme rain event21 to 26 September 202017415774 of 100 (Major)
Heat wave in Australia, 16 to 26 September 2020heat wave16 to 26 September 202018412042 of 100 (Notable)
Extreme rain in Finland and 3 other countries, 15 to 19 September 2020extreme rain event15 to 19 September 202011911367 of 100 (Major)
Extreme rain in Australia, 13 to 24 September 2020extreme rain event13 to 24 September 202035830388 of 100 (Exceptional)
Cold outbreak in United States and Mexico, 10 September to 7 October 2020cold outbreak10 September to 7 October 20201,03764754 of 100 (Notable)
Snow event in United States, 7 to 11 September 2020snow event7 to 11 September 202039016184 of 100 (Exceptional)
Extreme rain in Australia, 6 to 8 September 2020extreme rain event6 to 8 September 202011411478 of 100 (Major)
Heat wave in Australia, 6 to 12 September 2020heat wave6 to 12 September 202019010143 of 100 (Notable)
Extreme rain in United States, 5 to 18 September 2020extreme rain event5 to 18 September 202077670683 of 100 (Exceptional)
Cold outbreak in United States, 26 August to 5 September 2020cold outbreak26 August to 5 September 202026622749 of 100 (Notable)
Extreme rain in Germany and 9 other countries, 24 August to 1 September 2020extreme rain event24 August to 1 September 202022921380 of 100 (Exceptional)
Heat wave in Thailand and 3 other countries, 23 August to 18 September 2020heat wave23 August to 18 September 20202686839 of 100 (Notable)
Extreme rain in Norway and 4 other countries, 18 to 26 August 2020extreme rain event18 to 26 August 20201009263 of 100 (Major)
Extreme rain in Australia, 13 to 25 August 2020extreme rain event13 to 25 August 202035332878 of 100 (Major)
Extreme rain in Netherlands and 5 other countries, 11 to 21 August 2020extreme rain event11 to 21 August 202025121672 of 100 (Major)
Extreme rain in Australia, 4 to 13 August 2020extreme rain event4 to 13 August 202090377280 of 100 (Exceptional)
Cold outbreak in Australia, 2 to 11 August 2020cold outbreak2 to 11 August 20201599050 of 100 (Notable)
Extreme rain in Norway and 5 other countries, 25 to 31 July 2020extreme rain event25 to 31 July 202012910863 of 100 (Major)
Extreme rain in Australia, 22 to 30 July 2020extreme rain event22 to 30 July 202042934180 of 100 (Exceptional)
Heat wave in China and 3 other countries, 21 July to 9 August 2020heat wave21 July to 9 August 20202236940 of 100 (Notable)
Heat wave in Russia and 3 other countries, 21 July to 2 August 2020heat wave21 July to 2 August 20201276037 of 100 (Notable)
Extreme rain in Sweden and 3 other countries, 20 to 25 July 2020extreme rain event20 to 25 July 20201119963 of 100 (Major)
Cold outbreak in Sweden and 10 other countries, 19 to 27 July 2020cold outbreak19 to 27 July 202020414646 of 100 (Notable)
Heat wave in Saudi Arabia and 6 other countries, 19 July to 6 August 2020heat wave19 July to 6 August 20201062431 of 100 (Routine)
Extreme rain in United States, 17 July to 9 August 2020extreme rain event17 July to 9 August 20201,1871,00280 of 100 (Exceptional)
Extreme rain in Australia, 14 to 19 July 2020extreme rain event14 to 19 July 202010610671 of 100 (Major)
Extreme rain in Australia, 10 to 15 July 2020extreme rain event10 to 15 July 202020217976 of 100 (Major)
Extreme rain in Norway and 3 other countries, 2 to 6 July 2020extreme rain event2 to 6 July 202018116856 of 100 (Notable)
Cold outbreak in Germany and 19 other countries, 30 June to 18 July 2020cold outbreak30 June to 18 July 202039226755 of 100 (Notable)
Extreme rain in Sweden and 4 other countries, 27 June to 4 July 2020extreme rain event27 June to 4 July 202020419074 of 100 (Major)
Extreme rain in United States, 26 June to 13 July 2020extreme rain event26 June to 13 July 202050845073 of 100 (Major)
Heat wave in Spain and 5 other countries, 26 June to 20 July 2020heat wave26 June to 20 July 20201126846 of 100 (Notable)
Heat wave in Russia and 15 other countries, 26 June to 21 July 2020heat wave26 June to 21 July 202043517853 of 100 (Notable)
Extreme rain in United States, 23 June to 19 July 2020extreme rain event23 June to 19 July 202095578680 of 100 (Exceptional)
Cold outbreak in Russia and 7 other countries, 18 June to 3 July 2020cold outbreak18 June to 3 July 202039118643 of 100 (Notable)
Extreme rain in Australia, 18 to 25 June 2020extreme rain event18 to 25 June 202013010978 of 100 (Major)
Heat wave in United States, 18 to 25 June 2020heat wave18 to 25 June 20201247144 of 100 (Notable)
Extreme rain in United States, 17 to 29 June 2020extreme rain event17 to 29 June 202033830875 of 100 (Major)
Extreme rain in Australia, 12 to 16 June 2020extreme rain event12 to 16 June 202025724565 of 100 (Major)
Extreme rain in Germany and 11 other countries, 12 to 22 June 2020extreme rain event12 to 22 June 202042336984 of 100 (Exceptional)
Extreme rain in United States, 12 to 22 June 2020extreme rain event12 to 22 June 202028824779 of 100 (Major)
Heat wave in Sweden and 20 other countries, 11 to 29 June 2020heat wave11 to 29 June 20201,82955250 of 100 (Notable)
Heat wave in Australia, 10 to 25 June 2020heat wave10 to 25 June 202023712140 of 100 (Notable)
Heat wave in Russia and 9 other countries, 5 to 20 June 2020heat wave5 to 20 June 202025911348 of 100 (Notable)
Extreme rain in Sweden and 11 other countries, 3 to 8 June 2020extreme rain event3 to 8 June 202031629374 of 100 (Major)
Extreme rain in United States, 2 to 13 June 2020extreme rain event2 to 13 June 202062857780 of 100 (Exceptional)
Heat wave in Japan and 5 other countries, 27 May to 21 June 2020heat wave27 May to 21 June 202067326145 of 100 (Notable)
Heat wave in United States and Mexico, 24 May to 19 June 2020heat wave24 May to 19 June 20205,0472,21577 of 100 (Major)
Cold outbreak in Australia, 21 to 28 May 2020cold outbreak21 to 28 May 20201286251 of 100 (Notable)
Extreme rain in United States and Mexico, 21 to 31 May 2020extreme rain event21 to 31 May 202042640264 of 100 (Major)
Extreme rain in Australia, 19 to 26 May 2020extreme rain event19 to 26 May 20201107980 of 100 (Exceptional)
Extreme rain in Australia, 19 to 24 May 2020extreme rain event19 to 24 May 202012310760 of 100 (Major)
Extreme rain in United States, 16 to 26 May 2020extreme rain event16 to 26 May 202029626280 of 100 (Exceptional)
Heat wave in Russia, 16 to 27 May 2020heat wave16 to 27 May 20201555552 of 100 (Notable)
Heat wave in Thailand and 4 other countries, 13 to 28 May 2020heat wave13 to 28 May 20201615732 of 100 (Routine)
Extreme rain in United States, 11 to 25 May 2020extreme rain event11 to 25 May 202082767780 of 100 (Exceptional)
Cold outbreak in Germany and 19 other countries, 8 to 24 May 2020cold outbreak8 to 24 May 202075440043 of 100 (Notable)
Snow event in United States, 7 to 13 May 2020snow event7 to 13 May 202019311266 of 100 (Major)
Cold outbreak in United States, 4 to 29 May 2020cold outbreak4 to 29 May 20203,4341,84159 of 100 (Notable)
Cold outbreak in Australia, 29 April to 7 May 2020cold outbreak29 April to 7 May 202022112539 of 100 (Notable)
Extreme rain in United States, 28 April to 2 May 2020extreme rain event28 April to 2 May 202024324367 of 100 (Major)
Extreme rain in United States, 28 to 30 April 2020extreme rain event28 to 30 April 20201009376 of 100 (Major)
Extreme rain in Australia, 23 April to 4 May 2020extreme rain event23 April to 4 May 202083366278 of 100 (Major)
Extreme rain in United States, 20 to 26 April 2020extreme rain event20 to 26 April 202017917660 of 100 (Major)
Extreme rain in United States, 17 to 21 April 2020extreme rain event17 to 21 April 202016816370 of 100 (Major)
Cold outbreak in China and 5 other countries, 16 to 25 April 2020cold outbreak16 to 25 April 202019213038 of 100 (Notable)
Heat wave in Australia, 15 April to 1 May 2020heat wave15 April to 1 May 20201562634 of 100 (Routine)
Heat wave in Russia and 14 other countries, 15 April to 14 May 2020heat wave15 April to 14 May 20201,21843955 of 100 (Notable)
Extreme rain in Finland and 3 other countries, 11 to 16 April 2020extreme rain event11 to 16 April 20201039668 of 100 (Major)
Extreme rain in Norway and 4 other countries, 11 to 16 April 2020extreme rain event11 to 16 April 20201028855 of 100 (Notable)
Extreme rain in United States, 11 to 15 April 2020extreme rain event11 to 15 April 202042242180 of 100 (Exceptional)
Heat wave in Australia, 11 to 30 April 2020heat wave11 to 30 April 20201918941 of 100 (Notable)
Snow event in United States, 10 to 20 April 2020snow event10 to 20 April 20201,13963678 of 100 (Major)
Extreme rain in Australia, 9 to 12 April 2020extreme rain event9 to 12 April 202013413170 of 100 (Major)
Heat wave in Australia, 7 to 18 April 2020heat wave7 to 18 April 20201054049 of 100 (Notable)
Extreme rain in United States, 4 to 15 April 2020extreme rain event4 to 15 April 202029920378 of 100 (Major)
Heat wave in Germany and 33 other countries, 3 to 29 April 2020heat wave3 to 29 April 20201,83074750 of 100 (Notable)
Snow event in United States, 30 March to 6 April 2020snow event30 March to 6 April 202020915977 of 100 (Major)
Extreme rain in Australia, 29 March to 7 April 2020extreme rain event29 March to 7 April 202088467777 of 100 (Major)
Extreme rain in United States, 29 March to 4 April 2020extreme rain event29 March to 4 April 202019318966 of 100 (Major)
Extreme rain in United States, 27 March to 1 April 2020extreme rain event27 March to 1 April 202023423278 of 100 (Major)
Heat wave in Niger and 5 other countries, 27 March to 10 April 2020heat wave27 March to 10 April 20201073133 of 100 (Routine)
Heat wave in Russia and 12 other countries, 23 March to 16 April 2020heat wave23 March to 16 April 202082043944 of 100 (Notable)
Cold outbreak in Germany and 26 other countries, 21 March to 5 April 2020cold outbreak21 March to 5 April 202067134947 of 100 (Notable)
Heat wave in Germany and 18 other countries, 15 to 22 March 2020heat wave15 to 22 March 202018515841 of 100 (Notable)
Extreme rain in Australia, 13 to 20 March 2020extreme rain event13 to 20 March 20201079655 of 100 (Notable)
Extreme rain in Germany and 7 other countries, 9 to 13 March 2020extreme rain event9 to 13 March 202023922566 of 100 (Major)
Extreme rain in United States and Mexico, 9 to 26 March 2020extreme rain event9 to 26 March 20201,6471,36480 of 100 (Exceptional)
Heat wave in Japan and 2 other countries, 5 to 11 March 2020heat wave5 to 11 March 20201178152 of 100 (Notable)
Extreme rain in Netherlands and 7 other countries, 4 to 7 March 2020extreme rain event4 to 7 March 202025625665 of 100 (Major)
Extreme rain in United States, 3 to 6 March 2020extreme rain event3 to 6 March 202021317776 of 100 (Major)
Extreme rain in Australia, 1 to 11 March 2020extreme rain event1 to 11 March 202093273880 of 100 (Exceptional)
Heat wave in United States, 24 to 27 February 2020heat wave24 to 27 February 20201079742 of 100 (Notable)
Extreme rain in Australia, 21 to 29 February 2020extreme rain event21 to 29 February 202019516680 of 100 (Exceptional)
Extreme rain in United States, 21 to 26 February 2020extreme rain event21 to 26 February 202021621180 of 100 (Exceptional)
Heat wave in Thailand and 5 other countries, 20 February to 19 March 2020heat wave20 February to 19 March 20202527235 of 100 (Notable)
Extreme rain in Sweden and 16 other countries, 19 February to 8 March 2020extreme rain event19 February to 8 March 20201,32796977 of 100 (Major)
Extreme rain in Australia, 18 February to 1 March 2020extreme rain event18 February to 1 March 202045326975 of 100 (Major)
Extreme rain in United States, 17 to 21 February 2020extreme rain event17 to 21 February 202014013672 of 100 (Major)
Cold outbreak in United States and Mexico, 16 to 29 February 2020cold outbreak16 to 29 February 202070144944 of 100 (Notable)
Extreme rain in Netherlands and 9 other countries, 12 to 20 February 2020extreme rain event12 to 20 February 202082068880 of 100 (Exceptional)
Heat wave in Australia, 9 to 22 February 2020heat wave9 to 22 February 20201154040 of 100 (Notable)
Extreme rain in Sweden and 12 other countries, 8 to 14 February 2020extreme rain event8 to 14 February 202054451390 of 100 (Exceptional)
Extreme rain in United States, 8 to 14 February 2020extreme rain event8 to 14 February 2020460424100 of 100 (Exceptional)
Extreme rain in Australia, 4 to 20 February 2020extreme rain event4 to 20 February 20201,12472683 of 100 (Exceptional)
Extreme rain in United States, 4 to 8 February 2020extreme rain event4 to 8 February 202054347286 of 100 (Exceptional)
Cold outbreak in United States and Mexico, 2 to 16 February 2020cold outbreak2 to 16 February 20201,43587153 of 100 (Notable)
Extreme rain in Germany and 13 other countries, 31 January to 6 February 2020extreme rain event31 January to 6 February 202038329270 of 100 (Major)
Extreme rain in United States, 31 January to 9 February 2020extreme rain event31 January to 9 February 202051939080 of 100 (Exceptional)
Extreme rain in Australia, 30 January to 3 February 2020extreme rain event30 January to 3 February 202031528580 of 100 (Exceptional)
Extreme rain in Germany and 8 other countries, 27 to 30 January 2020extreme rain event27 to 30 January 202010810348 of 100 (Notable)
Extreme rain in Sweden and 3 other countries, 23 January to 4 February 2020extreme rain event23 January to 4 February 202016715069 of 100 (Major)
Extreme rain in United States, 22 to 30 January 2020extreme rain event22 to 30 January 202010910461 of 100 (Major)
Extreme rain in United States, 21 to 27 January 2020extreme rain event21 to 27 January 202023822564 of 100 (Major)
Heat wave in Japan and 3 other countries, 21 January to 1 February 2020heat wave21 January to 1 February 202029014444 of 100 (Notable)
Extreme rain in Australia, 15 to 31 January 2020extreme rain event15 to 31 January 202093276080 of 100 (Exceptional)
Heat wave in Australia, 14 January to 5 February 2020heat wave14 January to 5 February 202046018647 of 100 (Notable)
Extreme rain in United States, 10 to 16 January 2020extreme rain event10 to 16 January 202013712472 of 100 (Major)
Extreme rain in United States and Mexico, 9 to 21 January 2020extreme rain event9 to 21 January 20201,3641,11081 of 100 (Exceptional)
Cold outbreak in United States, 7 to 20 January 2020cold outbreak7 to 20 January 202031522045 of 100 (Notable)
Heat wave in Russia, 4 to 17 January 2020heat wave4 to 17 January 20201545437 of 100 (Notable)
Extreme rain in Australia, 3 to 8 January 2020extreme rain event3 to 8 January 202015214471 of 100 (Major)
Extreme rain in United States, 2 to 4 January 2020extreme rain event2 to 4 January 202014614266 of 100 (Major)

Records per Event

Station records per event in 2020
Cold outbreak in Spain and 6 other countries, 30 December 2020 to 20 January 2021279 records
Extreme rain in United States and Mexico, 27 December 2020 to 4 January 2021692 records
Extreme rain in Sweden and 2 other countries, 26 December 2020 to 2 January 2021256 records
Heat wave in Mali and 8 other countries, 26 December 2020 to 14 January 2021339 records
Extreme rain in United States, 24 to 27 December 2020259 records
Snow event in United States, 24 December 2020 to 5 January 2021352 records
Cold outbreak in China and 8 other countries, 22 December 2020 to 14 January 2021690 records
Extreme rain in Netherlands and 5 other countries, 20 to 24 December 2020446 records
Extreme rain in Australia, 19 December 2020 to 11 January 2021697 records
Snow event in United States, 15 to 29 December 2020634 records
Heat wave in Australia, 13 to 24 December 2020127 records
Cold outbreak in United States, 11 to 16 December 2020164 records
Extreme rain in Australia, 11 to 24 December 2020780 records
Extreme rain in United States, 11 to 18 December 2020317 records
Snow event in United States, 10 to 24 December 2020309 records
Cold outbreak in Uzbekistan and 3 other countries, 5 to 17 December 2020104 records
Extreme rain in Australia, 5 to 15 December 2020145 records
Heat wave in Niger and 6 other countries, 3 to 23 December 2020185 records
Extreme rain in Australia, 2 to 8 December 2020136 records
Cold outbreak in United States and Mexico, 28 November to 7 December 2020188 records
Extreme rain in United States and Mexico, 25 November to 3 December 2020323 records
Extreme rain in United States, 24 to 26 November 2020152 records
Extreme rain in Australia, 22 to 24 November 2020141 records
Cold outbreak in Uzbekistan and 7 other countries, 16 to 25 November 2020201 records
Extreme rain in Norway and 4 other countries, 15 to 22 November 2020241 records
Extreme rain in United States, 11 to 13 November 2020270 records
Extreme rain in Australia, 9 to 11 November 2020123 records
Heat wave in Australia, 9 to 20 November 2020194 records
Heat wave in China and 8 other countries, 5 to 24 November 20201,221 records
Cold outbreak in United States, 4 to 15 November 20201,627 records
Extreme rain in United States, 3 to 19 November 2020767 records
Extreme rain in Sweden and 3 other countries, 31 October to 6 November 2020173 records
Snow event in United States, 30 October to 5 November 2020159 records
Extreme rain in Australia, 29 October to 4 November 2020222 records
Heat wave in China and 2 other countries, 23 October to 5 November 2020149 records
Extreme rain in Australia, 21 October to 2 November 2020757 records
Extreme rain in Sweden and 4 other countries, 16 to 23 October 2020165 records
Extreme rain in United States, 16 October to 1 November 20201,326 records
Cold outbreak in United States and Mexico, 13 October to 5 November 20209,841 records
Cold outbreak in Spain and 6 other countries, 11 to 20 October 2020141 records
Extreme rain in Germany and 8 other countries, 11 to 15 October 2020148 records
Extreme rain in United States, 9 to 14 October 2020270 records
Extreme rain in United States, 8 to 14 October 2020271 records
Extreme rain in Netherlands and 2 other countries, 4 to 11 October 2020116 records
Extreme rain in Sweden and 4 other countries, 4 to 12 October 2020259 records
Extreme rain in Australia, 3 to 10 October 2020682 records
Heat wave in Australia, 2 to 8 October 2020135 records
Extreme rain in United Kingdom and 4 other countries, 30 September to 5 October 2020109 records
Extreme rain in Australia, 23 to 28 September 2020117 records
Heat wave in China and 4 other countries, 23 September to 22 October 2020307 records
Cold outbreak in Germany and 12 other countries, 22 September to 3 October 2020309 records
Extreme rain in Germany and 19 other countries, 22 to 29 September 2020511 records
Extreme rain in United States, 22 to 27 September 2020173 records
Extreme rain in United States, 21 to 26 September 2020174 records
Heat wave in Australia, 16 to 26 September 2020184 records
Extreme rain in Finland and 3 other countries, 15 to 19 September 2020119 records
Extreme rain in Australia, 13 to 24 September 2020358 records
Cold outbreak in United States and Mexico, 10 September to 7 October 20201,037 records
Snow event in United States, 7 to 11 September 2020390 records
Extreme rain in Australia, 6 to 8 September 2020114 records
Heat wave in Australia, 6 to 12 September 2020190 records
Extreme rain in United States, 5 to 18 September 2020776 records
Cold outbreak in United States, 26 August to 5 September 2020266 records
Extreme rain in Germany and 9 other countries, 24 August to 1 September 2020229 records
Heat wave in Thailand and 3 other countries, 23 August to 18 September 2020268 records
Extreme rain in Norway and 4 other countries, 18 to 26 August 2020100 records
Extreme rain in Australia, 13 to 25 August 2020353 records
Extreme rain in Netherlands and 5 other countries, 11 to 21 August 2020251 records
Extreme rain in Australia, 4 to 13 August 2020903 records
Cold outbreak in Australia, 2 to 11 August 2020159 records
Extreme rain in Norway and 5 other countries, 25 to 31 July 2020129 records
Extreme rain in Australia, 22 to 30 July 2020429 records
Heat wave in China and 3 other countries, 21 July to 9 August 2020223 records
Heat wave in Russia and 3 other countries, 21 July to 2 August 2020127 records
Extreme rain in Sweden and 3 other countries, 20 to 25 July 2020111 records
Cold outbreak in Sweden and 10 other countries, 19 to 27 July 2020204 records
Heat wave in Saudi Arabia and 6 other countries, 19 July to 6 August 2020106 records
Extreme rain in United States, 17 July to 9 August 20201,187 records
Extreme rain in Australia, 14 to 19 July 2020106 records
Extreme rain in Australia, 10 to 15 July 2020202 records
Extreme rain in Norway and 3 other countries, 2 to 6 July 2020181 records
Cold outbreak in Germany and 19 other countries, 30 June to 18 July 2020392 records
Extreme rain in Sweden and 4 other countries, 27 June to 4 July 2020204 records
Extreme rain in United States, 26 June to 13 July 2020508 records
Heat wave in Spain and 5 other countries, 26 June to 20 July 2020112 records
Heat wave in Russia and 15 other countries, 26 June to 21 July 2020435 records
Extreme rain in United States, 23 June to 19 July 2020955 records
Cold outbreak in Russia and 7 other countries, 18 June to 3 July 2020391 records
Extreme rain in Australia, 18 to 25 June 2020130 records
Heat wave in United States, 18 to 25 June 2020124 records
Extreme rain in United States, 17 to 29 June 2020338 records
Extreme rain in Australia, 12 to 16 June 2020257 records
Extreme rain in Germany and 11 other countries, 12 to 22 June 2020423 records
Extreme rain in United States, 12 to 22 June 2020288 records
Heat wave in Sweden and 20 other countries, 11 to 29 June 20201,829 records
Heat wave in Australia, 10 to 25 June 2020237 records
Heat wave in Russia and 9 other countries, 5 to 20 June 2020259 records
Extreme rain in Sweden and 11 other countries, 3 to 8 June 2020316 records
Extreme rain in United States, 2 to 13 June 2020628 records
Heat wave in Japan and 5 other countries, 27 May to 21 June 2020673 records
Heat wave in United States and Mexico, 24 May to 19 June 20205,047 records
Cold outbreak in Australia, 21 to 28 May 2020128 records
Extreme rain in United States and Mexico, 21 to 31 May 2020426 records
Extreme rain in Australia, 19 to 26 May 2020110 records
Extreme rain in Australia, 19 to 24 May 2020123 records
Extreme rain in United States, 16 to 26 May 2020296 records
Heat wave in Russia, 16 to 27 May 2020155 records
Heat wave in Thailand and 4 other countries, 13 to 28 May 2020161 records
Extreme rain in United States, 11 to 25 May 2020827 records
Cold outbreak in Germany and 19 other countries, 8 to 24 May 2020754 records
Snow event in United States, 7 to 13 May 2020193 records
Cold outbreak in United States, 4 to 29 May 20203,434 records
Cold outbreak in Australia, 29 April to 7 May 2020221 records
Extreme rain in United States, 28 April to 2 May 2020243 records
Extreme rain in United States, 28 to 30 April 2020100 records
Extreme rain in Australia, 23 April to 4 May 2020833 records
Extreme rain in United States, 20 to 26 April 2020179 records
Extreme rain in United States, 17 to 21 April 2020168 records
Cold outbreak in China and 5 other countries, 16 to 25 April 2020192 records
Heat wave in Australia, 15 April to 1 May 2020156 records
Heat wave in Russia and 14 other countries, 15 April to 14 May 20201,218 records
Extreme rain in Finland and 3 other countries, 11 to 16 April 2020103 records
Extreme rain in Norway and 4 other countries, 11 to 16 April 2020102 records
Extreme rain in United States, 11 to 15 April 2020422 records
Heat wave in Australia, 11 to 30 April 2020191 records
Snow event in United States, 10 to 20 April 20201,139 records
Extreme rain in Australia, 9 to 12 April 2020134 records
Heat wave in Australia, 7 to 18 April 2020105 records
Extreme rain in United States, 4 to 15 April 2020299 records
Heat wave in Germany and 33 other countries, 3 to 29 April 20201,830 records
Snow event in United States, 30 March to 6 April 2020209 records
Extreme rain in Australia, 29 March to 7 April 2020884 records
Extreme rain in United States, 29 March to 4 April 2020193 records
Extreme rain in United States, 27 March to 1 April 2020234 records
Heat wave in Niger and 5 other countries, 27 March to 10 April 2020107 records
Heat wave in Russia and 12 other countries, 23 March to 16 April 2020820 records
Cold outbreak in Germany and 26 other countries, 21 March to 5 April 2020671 records
Heat wave in Germany and 18 other countries, 15 to 22 March 2020185 records
Extreme rain in Australia, 13 to 20 March 2020107 records
Extreme rain in Germany and 7 other countries, 9 to 13 March 2020239 records
Extreme rain in United States and Mexico, 9 to 26 March 20201,647 records
Heat wave in Japan and 2 other countries, 5 to 11 March 2020117 records
Extreme rain in Netherlands and 7 other countries, 4 to 7 March 2020256 records
Extreme rain in United States, 3 to 6 March 2020213 records
Extreme rain in Australia, 1 to 11 March 2020932 records
Heat wave in United States, 24 to 27 February 2020107 records
Extreme rain in Australia, 21 to 29 February 2020195 records
Extreme rain in United States, 21 to 26 February 2020216 records
Heat wave in Thailand and 5 other countries, 20 February to 19 March 2020252 records
Extreme rain in Sweden and 16 other countries, 19 February to 8 March 20201,327 records
Extreme rain in Australia, 18 February to 1 March 2020453 records
Extreme rain in United States, 17 to 21 February 2020140 records
Cold outbreak in United States and Mexico, 16 to 29 February 2020701 records
Extreme rain in Netherlands and 9 other countries, 12 to 20 February 2020820 records
Heat wave in Australia, 9 to 22 February 2020115 records
Extreme rain in Sweden and 12 other countries, 8 to 14 February 2020544 records
Extreme rain in United States, 8 to 14 February 2020460 records
Extreme rain in Australia, 4 to 20 February 20201,124 records
Extreme rain in United States, 4 to 8 February 2020543 records
Cold outbreak in United States and Mexico, 2 to 16 February 20201,435 records
Extreme rain in Germany and 13 other countries, 31 January to 6 February 2020383 records
Extreme rain in United States, 31 January to 9 February 2020519 records
Extreme rain in Australia, 30 January to 3 February 2020315 records
Extreme rain in Germany and 8 other countries, 27 to 30 January 2020108 records
Extreme rain in Sweden and 3 other countries, 23 January to 4 February 2020167 records
Extreme rain in United States, 22 to 30 January 2020109 records
Extreme rain in United States, 21 to 27 January 2020238 records
Heat wave in Japan and 3 other countries, 21 January to 1 February 2020290 records
Extreme rain in Australia, 15 to 31 January 2020932 records
Heat wave in Australia, 14 January to 5 February 2020460 records
Extreme rain in United States, 10 to 16 January 2020137 records
Extreme rain in United States and Mexico, 9 to 21 January 20201,364 records
Cold outbreak in United States, 7 to 20 January 2020315 records
Heat wave in Russia, 4 to 17 January 2020154 records
Extreme rain in Australia, 3 to 8 January 2020152 records
Extreme rain in United States, 2 to 4 January 2020146 records

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-12. Events are found by this site from station records and are not official designations.