Warm to Cold Record Ratio: Czech Republic

146 record highs and 17 record lows were set in Czech Republic in 2026, a ratio of 8.6 to 1, with the trend by year and decade.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Key Facts

In 2026, 146 record highs and 17 record lows were set in Czech Republic, a warm to cold ratio of 8.6 to 1.
So far this year, 146 record highs and 17 record lows have been set in Czech Republic, a ratio of 8.6 to 1.
The ratio in Czech Republic was 0.9 to 1 in the 1800s and 6.1 to 1 in the 2020s.
The series starts in 1805.
A ratio of 1 to 1 means as many record highs as record lows; above 1 means more record highs.

Ratio by Year

Record highs divided by record lows

Record highs divided by record lows for each year in Czech Republic, from 1805 to 2026. A value of 1 is an even split.

Ratio of record highs to record lows by year, Czech Republic
Year	Highs to lows
1805	0.1 to 1
1806	2.7 to 1
1807	3.0 to 1
1808	0.4 to 1
1809	0.9 to 1
1810	1.0 to 1
1811	37 to 1
1812	0.2 to 1
1813	0.4 to 1
1814	0.2 to 1
1815	0.5 to 1
1816	0.1 to 1
1817	0.5 to 1
1818	0.9 to 1
1819	n/a
1820	1.1 to 1
1821	0.9 to 1
1822	n/a
1823	0.8 to 1
1824	3.7 to 1
1825	2.1 to 1
1826	3.5 to 1
1827	0.3 to 1
1828	1.3 to 1
1829	0.1 to 1
1830	0.8 to 1
1831	1.3 to 1
1832	0.2 to 1
1833	0.9 to 1
1834	8.8 to 1
1835	1.2 to 1
1836	1.1 to 1
1837	0.1 to 1
1838	0.0 to 1
1839	0.6 to 1
1840	0.3 to 1
1841	0.8 to 1
1842	0.7 to 1
1843	1.1 to 1
1844	0.2 to 1
1845	0.1 to 1
1846	5.5 to 1
1847	0.2 to 1
1848	1.9 to 1
1849	0.3 to 1
1850	0.2 to 1
1851	0.2 to 1
1852	0.4 to 1
1853	0.1 to 1
1854	0.5 to 1
1855	0.1 to 1
1856	0.6 to 1
1857	0.3 to 1
1858	0.0 to 1
1859	2.5 to 1
1860	0.7 to 1
1861	0.7 to 1
1862	2.7 to 1
1863	8.0 to 1
1864	0.2 to 1
1865	0.7 to 1
1866	1.3 to 1
1867	0.9 to 1
1868	35 to 1
1869	0.8 to 1
1870	0.6 to 1
1871	0.1 to 1
1872	13 to 1
1873	2.5 to 1
1874	0.9 to 1
1875	0.4 to 1
1876	0.5 to 1
1877	0.4 to 1
1878	3.0 to 1
1879	0.1 to 1
1880	0.3 to 1
1881	0.1 to 1
1882	4.0 to 1
1883	0.6 to 1
1884	1.4 to 1
1885	0.7 to 1
1886	0.8 to 1
1887	0.2 to 1
1888	0.3 to 1
1889	0.2 to 1
1890	0.6 to 1
1891	5.0 to 1
1892	1.0 to 1
1893	1.0 to 1
1894	0.7 to 1
1895	0.9 to 1
1896	n/a
1897	0.3 to 1
1898	2.0 to 1
1899	0.8 to 1
1900	0.7 to 1
1901	5.0 to 1
1902	0.2 to 1
1903	6.0 to 1
1904	0.0 to 1
1905	1.3 to 1
1906	0.5 to 1
1907	0.5 to 1
1908	0.1 to 1
1909	1.0 to 1
1910	0.5 to 1
1911	n/a
1912	0.8 to 1
1913	0.2 to 1
1914	3.0 to 1
1915	1.2 to 1
1916	0.9 to 1
1917	1.7 to 1
1918	1.4 to 1
1919	0.8 to 1
1920	2.5 to 1
1921	3.0 to 1
1922	1.0 to 1
1923	0.8 to 1
1924	1.5 to 1
1925	n/a
1926	8.0 to 1
1927	3.0 to 1
1928	2.5 to 1
1929	0.4 to 1
1930	3.5 to 1
1931	0.4 to 1
1932	n/a
1933	4.0 to 1
1934	14 to 1
1935	2.2 to 1
1936	0.4 to 1
1937	0.9 to 1
1938	1.3 to 1
1939	1.8 to 1
1940	0.2 to 1
1941	0.2 to 1
1942	0.8 to 1
1943	10 to 1
1944	3.7 to 1
1945	5.1 to 1
1946	3.5 to 1
1947	3.2 to 1
1948	4.5 to 1
1949	2.4 to 1
1950	6.2 to 1
1951	4.8 to 1
1952	4.4 to 1
1953	3.6 to 1
1954	0.9 to 1
1955	1.1 to 1
1956	0.3 to 1
1957	3.0 to 1
1958	4.5 to 1
1959	8.7 to 1
1960	1.8 to 1
1961	2.6 to 1
1962	0.9 to 1
1963	1.4 to 1
1964	1.8 to 1
1965	0.6 to 1
1966	9.3 to 1
1967	2.9 to 1
1968	2.6 to 1
1969	1.3 to 1
1970	10 to 1
1971	0.6 to 1
1972	0.9 to 1
1973	0.8 to 1
1974	7.0 to 1
1975	2.0 to 1
1976	3.6 to 1
1977	2.1 to 1
1978	0.1 to 1
1979	4.8 to 1
1980	0.6 to 1
1981	2.3 to 1
1982	8.0 to 1
1983	2.7 to 1
1984	1.0 to 1
1985	0.5 to 1
1986	0.5 to 1
1987	0.5 to 1
1988	2.8 to 1
1989	4.7 to 1
1990	5.5 to 1
1991	1.1 to 1
1992	4.9 to 1
1993	1.4 to 1
1994	3.6 to 1
1995	1.8 to 1
1996	0.5 to 1
1997	1.1 to 1
1998	3.5 to 1
1999	3.5 to 1
2000	6.9 to 1
2001	2.1 to 1
2002	2.7 to 1
2003	2.0 to 1
2004	2.9 to 1
2005	1.4 to 1
2006	3.0 to 1
2007	3.7 to 1
2008	2.5 to 1
2009	2.1 to 1
2010	1.5 to 1
2011	3.0 to 1
2012	2.7 to 1
2013	1.2 to 1
2014	6.8 to 1
2015	8.8 to 1
2016	3.9 to 1
2017	4.2 to 1
2018	2.3 to 1
2019	3.8 to 1
2020	2.7 to 1
2021	1.7 to 1
2022	7.5 to 1
2023	7.8 to 1
2024	27 to 1
2025	4.8 to 1
2026	8.6 to 1

Ratio by Decade

Decade ratios in Czech Republic: 1800s 0.9 to 1, 1810s 0.7 to 1, 1820s 0.8 to 1, 1830s 0.7 to 1, 1840s 0.6 to 1, 1850s 0.3 to 1, 1860s 1.1 to 1, 1870s 0.6 to 1, 1880s 0.5 to 1, 1890s 1.0 to 1, 1900s 0.6 to 1, 1910s 1.0 to 1, 1920s 1.6 to 1, 1930s 1.3 to 1, 1940s 1.5 to 1, 1950s 2.4 to 1, 1960s 1.8 to 1, 1970s 1.6 to 1, 1980s 1.5 to 1, 1990s 2.0 to 1, 2000s 2.6 to 1, 2010s 2.7 to 1, 2020s 6.1 to 1. Dashed line: an even split of 1 to 1.

Ratio of record highs to record lows by decade, Czech Republic
Decade	Ratio
1800s	0.9 to 1
1810s	0.7 to 1
1820s	0.8 to 1
1830s	0.7 to 1
1840s	0.6 to 1
1850s	0.3 to 1
1860s	1.1 to 1
1870s	0.6 to 1
1880s	0.5 to 1
1890s	1.0 to 1
1900s	0.6 to 1
1910s	1.0 to 1
1920s	1.6 to 1
1930s	1.3 to 1
1940s	1.5 to 1
1950s	2.4 to 1
1960s	1.8 to 1
1970s	1.6 to 1
1980s	1.5 to 1
1990s	2.0 to 1
2000s	2.6 to 1
2010s	2.7 to 1
2020s	6.1 to 1

Cumulative Highs and Lows in 2026

Running totals of record highs and record lows in Czech Republic through 2026: 146 highs against 17 lows so far.

Cumulative record highs and record lows in 2026, Czech Republic
Date	Record highs	Record lows
2026-01-11	0	1
2026-01-21	0	2
2026-01-22	0	3
2026-02-13	1	3
2026-02-23	2	3
2026-02-27	5	3
2026-02-28	7	3
2026-03-08	8	3
2026-03-10	9	3
2026-03-11	10	3
2026-03-12	11	3
2026-03-13	12	3
2026-03-15	13	3
2026-04-04	14	3
2026-04-05	17	3
2026-04-10	17	4
2026-04-11	17	5
2026-04-16	18	5
2026-04-30	18	7
2026-05-01	19	7
2026-05-03	21	7
2026-05-04	24	7
2026-05-05	25	7
2026-05-06	26	7
2026-05-12	26	8
2026-05-13	26	9
2026-05-17	26	10
2026-05-24	32	10
2026-05-25	35	10
2026-05-26	36	10
2026-06-10	36	12
2026-06-19	37	12
2026-06-20	39	12
2026-06-21	40	12
2026-06-22	43	12
2026-06-23	46	12
2026-06-24	47	12
2026-06-25	52	12
2026-06-26	60	12
2026-06-27	71	12
2026-06-28	81	12
2026-06-29	86	12
2026-06-30	89	12
2026-07-04	89	13
2026-07-07	91	13
2026-07-13	93	13
2026-07-14	95	13
2026-07-23	95	14
2026-07-24	95	15
2026-07-30	99	15
2026-07-31	105	15
2026-08-03	107	15
2026-08-04	115	15
2026-08-05	125	15
2026-08-06	128	15
2026-08-10	132	15
2026-08-15	133	15
2026-08-18	133	16
2026-08-20	134	16
2026-08-28	135	16
2026-09-03	136	16
2026-09-04	137	16
2026-09-08	141	16
2026-09-09	142	16
2026-09-16	143	16
2026-09-23	143	17
2026-10-03	144	17
2026-10-04	145	17
2026-10-06	146	17

Year to Date Against Previous Years

The ratio of record highs to record lows over the same part of the year, for each of the previous ten years and this year (highlighted). Dashed line: an even split of 1 to 1.

Year to date ratio against the previous ten years, Czech Republic
Year	Ratio
2016	4.1 to 1
2017	3.6 to 1
2018	2.2 to 1
2019	2.9 to 1
2020	2.0 to 1
2021	1.4 to 1
2022	6.0 to 1
2023	7.5 to 1
2024	31 to 1
2025	4.7 to 1
2026 (this year)	8.6 to 1

Download the Data

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 2026-10-17. Records are computed by this site. The ratio uses record highs and record lows of daily maximum and minimum temperature.