Cluj Napoca Threshold Days by Year (ROE00100902)

13 fixed thresholds counted per year at Cluj Napoca (ROE00100902): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cluj Napoca Thresholds

Cluj Napoca: days with 10 mm (0.39 in) or more of precipitation in 104 years, most in 1999 with 28.
Cluj Napoca: nights with a minimum temperature at or below 0 C (32 F) in 95 years, most in 1924 with 145.
Cluj Napoca: nights with a minimum temperature at or below -10 C (14 F) in 95 years, most in 1924 with 47.
Cluj Napoca: days with a maximum temperature at or below 0 C (32 F) in 94 years, most in 1922 with 68.
13 fixed thresholds have at least one qualifying day at Cluj Napoca.

Days at or above 30 C (86 F)

90 years with a qualifying day

Days per year at Cluj Napoca with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 53 in 2012.

Days at or above 30 C (86 F) per year at Cluj Napoca
Year	Days	Decade average
1922	25	14.9
1923	17	14.9
1924	25	14.9
1925	5	14.9
1926	1	14.9
1927	16	14.9
1928	21	14.9
1929	9	14.9
1930	2	13.4
1931	12	13.4
1934	7	13.4
1935	20	13.4
1936	18	13.4
1937	10	13.4
1938	19	13.4
1939	19	13.4
1948	13	12
1949	11	12
1950	32	18.8
1951	26	18.8
1952	37	18.8
1953	18	18.8
1954	10	18.8
1955	2	18.8
1957	20	18.8
1958	16	18.8
1959	8	18.8
1960	6	13.5
1961	16	13.5
1962	19	13.5
1963	26	13.5
1964	16	13.5
1965	11	13.5
1966	9	13.5
1967	15	13.5
1968	15	13.5
1969	2	13.5
1971	4	5.3
1972	6	5.3
1973	4	5.3
1974	12	5.3
1976	2	5.3
1979	4	5.3
1980	2	6.4
1981	4	6.4
1982	5	6.4
1983	4	6.4
1984	2	6.4
1985	9	6.4
1986	7	6.4
1987	12	6.4
1988	13	6.4
1989	6	6.4
1990	13	11
1991	7	11
1992	19	11
1993	11	11
1994	25	11
1995	9	11
1996	6	11
1997	1	11
1998	12	11
1999	7	11
2000	24	17.9
2001	11	17.9
2002	16	17.9
2003	31	17.9
2004	12	17.9
2005	9	17.9
2006	17	17.9
2007	24	17.9
2008	16	17.9
2009	19	17.9
2010	23	28.9
2011	22	28.9
2012	53	28.9
2013	23	28.9
2014	17	28.9
2015	38	28.9
2016	20	28.9
2017	35	28.9
2018	21	28.9
2019	37	28.9
2020	15	24.7
2021	26	24.7
2022	31	24.7
2023	23	24.7
2024	38	24.7
2025	31	24.7
2026	9	24.7

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

First to last qualifying date each year at Cluj Napoca
Year	First date	Last date
1922	1922-04-30	1922-09-01
1923	1923-05-25	1923-09-04
1924	1924-05-14	1924-08-14
1925	1925-05-31	1925-08-25
1926	1926-04-25	1926-04-25
1927	1927-06-03	1927-09-27
1928	1928-07-04	1928-09-10
1929	1929-07-05	1929-08-12
1930	1930-07-24	1930-07-30
1931	1931-07-08	1931-08-21
1934	1934-07-22	1934-08-27
1935	1935-06-06	1935-10-08
1936	1936-07-02	1936-08-01
1937	1937-05-22	1937-08-15
1938	1938-06-23	1938-08-22
1939	1939-06-13	1939-08-06
1948	1948-05-14	1948-08-11
1949	1949-07-15	1949-08-15
1950	1950-04-21	1950-09-16
1951	1951-05-28	1951-09-01
1952	1952-06-19	1952-10-02
1953	1953-05-25	1953-08-22
1954	1954-07-29	1954-08-22
1955	1955-06-08	1955-07-20
1957	1957-06-11	1957-08-16
1958	1958-05-12	1958-08-22
1959	1959-06-30	1959-07-31
1960	1960-07-09	1960-09-06
1961	1961-06-26	1961-09-19
1962	1962-06-01	1962-09-07
1963	1963-06-27	1963-08-28
1964	1964-06-03	1964-08-30
1965	1965-05-19	1965-08-24
1966	1966-07-07	1966-08-20
1967	1967-06-26	1967-08-05
1968	1968-05-06	1968-07-15
1969	1969-05-15	1969-05-16
1971	1971-07-28	1971-08-08
1972	1972-06-15	1972-08-16
1973	1973-05-06	1973-09-25
1974	1974-07-14	1974-08-20
1976	1976-07-05	1976-07-21
1979	1979-08-01	1979-08-04
1980	1980-07-16	1980-08-06
1981	1981-06-29	1981-08-03
1982	1982-05-11	1982-09-08
1983	1983-07-19	1983-09-11
1984	1984-07-12	1984-07-13
1985	1985-07-21	1985-08-26
1986	1986-08-01	1986-09-17
1987	1987-06-15	1987-09-14
1988	1988-07-05	1988-08-22
1989	1989-07-09	1989-08-20
1990	1990-05-25	1990-09-01
1991	1991-06-16	1991-08-08
1992	1992-08-02	1992-09-01
1993	1993-06-20	1993-08-24
1994	1994-05-18	1994-09-15
1995	1995-07-12	1995-08-08
1996	1996-05-19	1996-07-08
1997	1997-06-23	1997-06-23
1998	1998-07-14	1998-08-09
1999	1999-07-07	1999-08-19
2000	2000-06-06	2000-08-23
2001	2001-06-10	2001-08-18
2002	2002-05-26	2002-07-17
2003	2003-05-03	2003-09-23
2004	2004-07-06	2004-08-26
2005	2005-05-28	2005-08-03
2006	2006-05-24	2006-08-20
2007	2007-05-15	2007-08-25
2008	2008-06-23	2008-09-07
2009	2009-06-07	2009-08-29
2010	2010-06-09	2010-08-27
2011	2011-06-08	2011-09-13
2012	2012-06-09	2012-10-01
2013	2013-04-27	2013-08-20
2014	2014-06-08	2014-08-14
2015	2015-06-13	2015-09-19
2016	2016-06-17	2016-09-11
2017	2017-06-21	2017-09-17
2018	2018-05-05	2018-09-03
2019	2019-06-13	2019-09-02
2020	2020-06-29	2020-08-31
2021	2021-06-22	2021-08-16
2022	2022-06-25	2022-08-28
2023	2023-06-23	2023-08-29
2024	2024-06-21	2024-09-03
2025	2025-06-06	2025-09-05
2026	2026-06-20	2026-06-30

Every Fixed Threshold

Fixed thresholds at Cluj Napoca
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	90	53	2012	9
35 C (95 F): Days	26	10	2012	3
90 F (32.2 C): Days	72	27	2012	4
100 F (37.8 C): Days	3	2	2007	1
0 C (32 F): Ice days (max	94	68	1922	14
0 C (32 F): Frost days (min	95	145	1924	60
-10 C (14 F): Days with min	95	47	1924	7
-20 C (-4 F): Days with min	41	17	1954	2
-30 C (-22 F): Days with min	3	4	1963	4
20 C (68 F): Tropical nights (min	15	3	2017	2
10 mm (0.39 in): Days with 10 mm or more rain	104	28	1999	9
25 mm (0.98 in): Days with 25 mm or more rain	90	9	2001	2
50 mm (1.97 in): Days with 50 mm or more rain	15	2	1941	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1922.

Download the Data

Data for Cluj Napoca 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Cluj Napoca Threshold Days by Year (ROE00100902)

Key Facts for Cluj Napoca Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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