Every day since 1940, recomputed nightly
Today, against the record books
Every city temperature below is compared with the same calendar day in every year back to 1940 (ERA5 reanalysis). Percentile 97 means: only 3 percent of all these days were warmer. That is what "unusually warm" actually means.
Oslo: this year against 85 years of normalBand = the middle 80 percent of all years since 1940 · dashed = median · amber = this year
Source: Open-Meteo / Copernicus ERA5
Right now, ranked by how unusual today is
CityToday, mean so farPercentile for this date, 1940+Normal span (p10 to p90)
Oslo13.4°
warmer than 100 % of every 6 October since 19405.8° to 11.4°
Stockholm13.9°
warmer than 100 % of every 6 October since 19406.5° to 12.0°
Singapore28.7°
warmer than 100 % of every 6 October since 194025.6° to 27.3°
London17.2°
warmer than 100 % of every 6 October since 19409.6° to 15.2°
Los Angeles30.1°
warmer than 100 % of every 6 October since 194016.9° to 25.1°
Delhi30.2°
warmer than 99 % of every 6 October since 194024.3° to 28.8°
Warsaw16.6°
warmer than 98 % of every 6 October since 19406.4° to 14.7°
Lagos26.5°
warmer than 96 % of every 6 October since 194024.8° to 26.0°
Paris18.0°
warmer than 96 % of every 6 October since 194010.2° to 16.6°
Nairobi20.9°
warmer than 95 % of every 6 October since 194018.1° to 20.4°
Mumbai29.6°
warmer than 95 % of every 6 October since 194026.1° to 28.8°
Beijing19.8°
warmer than 95 % of every 6 October since 194011.4° to 17.9°
Bogota15.7°
warmer than 95 % of every 6 October since 194013.2° to 15.1°
Dubai32.6°
warmer than 94 % of every 6 October since 194029.2° to 31.9°
Mexico City16.8°
warmer than 92 % of every 6 October since 194013.1° to 16.4°
Rome20.4°
warmer than 91 % of every 6 October since 194015.2° to 20.3°
Tokyo22.0°
warmer than 91 % of every 6 October since 194015.2° to 21.8°
Berlin15.4°
warmer than 90 % of every 6 October since 19408.3° to 15.3°
Moscow11.0°
percentile 842.3° to 11.6°
Sydney19.2°
percentile 7913.2° to 20.4°
Buenos Aires16.7°
percentile 7111.8° to 18.1°
Madrid17.4°
percentile 6112.7° to 20.2°
Chicago14.5°
percentile 499.3° to 19.4°
Bangkok26.5°
percentile 4825.6° to 27.8°
Cairo24.3°
percentile 4622.8° to 27.0°
Sao Paulo18.6°
percentile 4115.9° to 22.9°
Istanbul17.1°
percentile 4115.1° to 20.9°
Johannesburg15.8°
percentile 3213.5° to 21.9°
New York13.1°
percentile 2811.3° to 20.0°
Toronto8.7°
colder than 94 % of every 6 October since 19409.3° to 18.3°
The records that still stand (daily mean, since 1940)
CityHottest dayColdest day
Delhi40.3° · 16 June 19956.6° · 30 December 2019
Dubai40.0° · 10 August 194811.6° · 3 January 1949
Cairo36.5° · 31 May 19614.9° · 6 February 1950
Los Angeles36.1° · 7 September 20201.9° · 22 December 1990
Beijing35.3° · 6 July 1972-21.2° · 5 January 1955
New York34.6° · 3 July 2026-19.1° · 18 January 1982
Mumbai34.5° · 17 April 202418.4° · 6 January 1945
Paris34.2° · 25 June 2026-13.3° · 22 January 1942
Sydney34.1° · 4 January 19465.2° · 8 July 1941
Tokyo34.0° · 1 August 2026-7.5° · 13 February 1967
Madrid33.7° · 14 July 2022-8.7° · 28 January 1952
Bangkok33.3° · 2 May 201917.2° · 25 January 2016
Buenos Aires33.1° · 31 December 20251.3° · 14 June 1967
Berlin32.6° · 28 June 2026-22.9° · 11 February 1956
Rome32.5° · 3 July 2025-5.6° · 11 January 1985
Warsaw32.4° · 28 June 2026-27.8° · 14 January 1987
Chicago32.0° · 14 July 1995-28.0° · 19 January 1994
Istanbul31.7° · 23 July 2025-5.1° · 17 January 1963
Toronto30.8° · 24 June 2025-21.8° · 17 January 1982
Lagos30.4° · 29 April 202422.6° · 9 January 1957
London30.3° · 26 June 2026-8.8° · 10 February 1986
Moscow30.1° · 6 August 2010-40.0° · 31 December 1978
Sao Paulo30.0° · 27 September 19615.8° · 30 July 2021
Singapore29.3° · 13 May 202322.7° · 12 January 2018
Johannesburg28.3° · 7 January 20160.2° · 29 June 1994
Oslo26.7° · 11 August 1975-27.1° · 8 January 1982
Stockholm25.9° · 26 July 2018-23.3° · 10 January 1987
Mexico City25.4° · 11 May 20243.7° · 17 January 1965
Nairobi23.7° · 25 February 200514.0° · 30 July 1968
Bogota17.4° · 23 September 202610.5° · 29 January 2023