Warsaw 1 Threshold Days by Year (USC00238733)

22 fixed thresholds counted per year at Warsaw 1 (USC00238733): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Warsaw 1 Thresholds

Warsaw 1: days with a maximum temperature at or above 30 C (86 F) in 82 years, most in 1913 with 132.
Warsaw 1: days with a maximum temperature at or above 90 F (32.2 C) in 82 years, most in 1913 with 112.
Warsaw 1: days with a maximum temperature at or below 0 C (32 F) in 82 years, most in 1978 with 40.
Warsaw 1: nights with a minimum temperature at or below 0 C (32 F) in 82 years, most in 1917 with 139.
22 fixed thresholds have at least one qualifying day at Warsaw 1.

Days at or above 30 C (86 F)

82 years with a qualifying day

Days per year at Warsaw 1 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 132 in 1913.

Days at or above 30 C (86 F) per year at Warsaw 1
Year	Days	Decade average
1893	56	83
1895	84	83
1897	109	83
1900	105	93.8
1905	67	93.8
1906	90	93.8
1907	83	93.8
1908	108	93.8
1909	110	93.8
1910	114	104.4
1911	121	104.4
1912	101	104.4
1913	132	104.4
1914	108	104.4
1915	61	104.4
1916	98	104.4
1917	100	104.4
1918	114	104.4
1919	95	104.4
1920	67	82.9
1921	98	82.9
1922	96	82.9
1923	78	82.9
1924	58	82.9
1925	112	82.9
1926	90	82.9
1927	73	82.9
1928	75	82.9
1929	82	82.9
1930	104	108.6
1931	107	108.6
1932	103	108.6
1933	116	108.6
1934	111	108.6
1935	85	108.6
1936	120	108.6
1937	111	108.6
1938	108	108.6
1939	121	108.6
1940	93	88.1
1941	101	88.1
1942	86	88.1
1943	87	88.1
1944	101	88.1
1945	62	88.1
1946	85	88.1
1947	100	88.1
1948	87	88.1
1949	79	88.1
1950	57	94.9
1951	72	94.9
1952	116	94.9
1954	124	94.9
1955	108	94.9
1956	126	94.9
1957	78	94.9
1958	73	94.9
1959	100	94.9
1960	86	77.4
1961	60	77.4
1962	106	77.4
1963	117	77.4
1964	85	77.4
1965	83	77.4
1966	66	77.4
1967	42	77.4
1968	63	77.4
1969	66	77.4
1970	87	81.6
1971	89	81.6
1972	93	81.6
1973	76	81.6
1974	60	81.6
1975	88	81.6
1976	83	81.6
1977	77	81.6
1978	89	81.6
1979	74	81.6
1980	112	83.5
1981	69	83.5
1982	61	83.5
1983	92	83.5

For each year, a bar from the first to the last day at Warsaw 1 meeting 30 C (86 F).

First to last qualifying date each year at Warsaw 1
Year	First date	Last date
1893	1893-04-07	1893-10-11
1895	1895-03-27	1895-09-23
1897	1897-05-18	1897-10-16
1900	1900-04-26	1900-10-06
1905	1905-04-08	1905-09-28
1906	1906-04-11	1906-10-04
1907	1907-03-19	1907-10-24
1908	1908-04-20	1908-10-19
1909	1909-04-04	1909-11-04
1910	1910-03-21	1910-10-16
1911	1911-02-15	1911-10-15
1912	1912-05-01	1912-10-09
1913	1913-04-17	1913-10-10
1914	1914-04-15	1914-11-07
1915	1915-04-17	1915-11-06
1916	1916-03-21	1916-10-08
1917	1917-04-23	1917-10-17
1918	1918-03-13	1918-10-06
1919	1919-04-21	1919-10-09
1920	1920-05-22	1920-10-12
1921	1921-03-18	1921-09-28
1922	1922-04-06	1922-10-30
1923	1923-05-30	1923-09-29
1924	1924-04-15	1924-11-01
1925	1925-04-10	1925-10-04
1926	1926-05-23	1926-09-23
1927	1927-04-28	1927-10-28
1928	1928-05-02	1928-10-14
1929	1929-03-24	1929-09-28
1930	1930-04-09	1930-10-10
1931	1931-05-16	1931-10-10
1932	1932-04-21	1932-10-18
1933	1933-03-13	1933-09-30
1934	1934-05-06	1934-09-25
1935	1935-05-12	1935-10-16
1936	1936-04-13	1936-09-22
1937	1937-04-17	1937-11-01
1938	1938-04-30	1938-11-01
1939	1939-05-06	1939-10-25
1940	1940-04-01	1940-10-26
1941	1941-04-12	1941-10-06
1942	1942-04-04	1942-09-18
1943	1943-05-05	1943-09-12
1944	1944-05-13	1944-10-07
1945	1945-03-16	1945-09-24
1946	1946-03-31	1946-10-07
1947	1947-04-30	1947-10-21
1948	1948-04-18	1948-09-22
1949	1949-04-25	1949-10-08
1950	1950-05-03	1950-10-31
1951	1951-04-27	1951-10-05
1952	1952-04-08	1952-10-26
1954	1954-04-05	1954-10-10
1955	1955-04-15	1955-10-20
1956	1956-04-26	1956-10-19
1957	1957-04-30	1957-09-19
1958	1958-04-23	1958-10-20
1959	1959-04-24	1959-09-28
1960	1960-04-16	1960-10-11
1961	1961-04-19	1961-10-12
1962	1962-04-21	1962-10-12
1963	1963-04-01	1963-10-26
1964	1964-04-16	1964-10-17
1965	1965-04-21	1965-10-10
1966	1966-05-06	1966-10-14
1967	1967-05-24	1967-10-04
1968	1968-05-02	1968-10-30
1969	1969-05-28	1969-10-04
1970	1970-04-27	1970-09-21
1971	1971-04-12	1971-10-16
1972	1972-04-12	1972-09-21
1973	1973-06-08	1973-10-03
1974	1974-05-13	1974-08-27
1975	1975-04-18	1975-10-13
1976	1976-06-08	1976-10-12
1977	1977-04-16	1977-10-27
1978	1978-04-08	1978-10-21
1979	1979-04-17	1979-10-21
1980	1980-04-21	1980-10-09
1981	1981-04-10	1981-10-05
1982	1982-05-04	1982-10-07
1983	1983-05-26	1983-10-03

Every Fixed Threshold

Fixed thresholds at Warsaw 1
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	82	132	1913	92
35 C (95 F): Days	81	79	1913	45
40 C (104 F): Days	39	41	1934	2
45 C (113 F): Days	3	6	1954	6
90 F (32.2 C): Days	82	112	1913	72
100 F (37.8 C): Days	60	60	1936	23
110 F (43.3 C): Days	5	15	1934	3
0 C (32 F): Ice days (max	82	40	1978	17
0 C (32 F): Frost days (min	82	139	1917	108
-10 C (14 F): Days with min	82	46	1963	20
-20 C (-4 F): Days with min	59	13	1905	7
-30 C (-22 F): Days with min	7	3	1905	1
-40 C (-40 F): Days with min	1	1	1905	1
20 C (68 F): Tropical nights (min	82	72	1936	48
25 C (77 F): Days with min	43	20	1934	2
10 mm (0.39 in): Days with 10 mm or more rain	80	53	1973	34
25 mm (0.98 in): Days with 25 mm or more rain	80	23	1927	9
50 mm (1.97 in): Days with 50 mm or more rain	73	8	1965	2
100 mm (3.94 in): Days with 100 mm or more rain	16	1	1897	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1906	1
10 cm (3.9 in): Days with 10 cm or more snowfall	50	6	1960	1
25 cm (9.8 in): Days with 25 cm or more snowfall	7	1	1914	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1893.

Download the Data

Data for Warsaw 1 threshold days by year: CSV or JSON. Field meanings are on the data page.

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 (17 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Warsaw 1 Threshold Days by Year (USC00238733)

Key Facts for Warsaw 1 Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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