Nis Threshold Days by Year (RIE00100814)

15 fixed thresholds counted per year at Nis (RIE00100814): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Nis Thresholds

Nis: days with 10 mm (0.39 in) or more of precipitation in 79 years, most in 2014 with 33.
Nis: days with a maximum temperature at or above 30 C (86 F) in 73 years, most in 2012 with 95.
Nis: nights with a minimum temperature at or below 0 C (32 F) in 73 years, most in 1993 with 117.
Nis: days with a maximum temperature at or above 90 F (32.2 C) in 72 years, most in 1952 with 66.
15 fixed thresholds have at least one qualifying day at Nis.

Days at or above 30 C (86 F)

73 years with a qualifying day

Days per year at Nis with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 95 in 2012.

Days at or above 30 C (86 F) per year at Nis
Year	Days	Decade average
1943	44	47.3
1946	58	47.3
1949	40	47.3
1950	84	48.5
1951	64	48.5
1952	85	48.5
1953	38	48.5
1954	49	48.5
1955	12	48.5
1956	40	48.5
1957	38	48.5
1958	53	48.5
1959	22	48.5
1960	30	41.2
1961	41	41.2
1962	56	41.2
1963	55	41.2
1964	36	41.2
1965	49	41.2
1966	34	41.2
1967	45	41.2
1968	38	41.2
1969	28	41.2
1970	37	27.1
1971	37	27.1
1972	38	27.1
1973	28	27.1
1974	34	27.1
1975	19	27.1
1976	6	27.1
1977	26	27.1
1978	22	27.1
1979	24	27.1
1980	21	38.3
1981	32	38.3
1982	35	38.3
1983	34	38.3
1984	33	38.3
1985	42	38.3
1986	44	38.3
1987	59	38.3
1988	50	38.3
1989	33	38.3
1990	49	49.7
1991	27	49.7
1992	53	49.7
1993	61	49.7
1994	81	49.7
1995	47	49.7
1996	47	49.7
1997	28	49.7
1998	61	49.7
1999	43	49.7
2000	61	56.5
2001	51	56.5
2002	37	56.5
2003	83	56.5
2004	42	56.5
2005	36	56.5
2006	55	56.5
2007	74	56.5
2008	73	56.5
2009	53	56.5
2010	53	61.5
2011	65	61.5
2012	95	61.5
2013	59	61.5
2014	34	61.5
2015	69	61.5
2016	52	61.5
2017	65	61.5
2021	66	61.5
2025	57	61.5

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

First to last qualifying date each year at Nis
Year	First date	Last date
1943	1943-06-15	1943-10-02
1946	1946-06-09	1946-08-31
1949	1949-04-30	1949-09-03
1950	1950-04-20	1950-09-27
1951	1951-05-27	1951-09-18
1952	1952-03-30	1952-10-02
1953	1953-05-28	1953-09-27
1954	1954-06-04	1954-09-21
1955	1955-06-08	1955-07-22
1956	1956-06-12	1956-09-11
1957	1957-06-10	1957-08-20
1958	1958-05-10	1958-09-22
1959	1959-05-22	1959-08-26
1960	1960-05-18	1960-09-06
1961	1961-06-22	1961-10-01
1962	1962-05-28	1962-09-17
1963	1963-06-22	1963-09-20
1964	1964-06-02	1964-10-13
1965	1965-05-18	1965-10-03
1966	1966-06-20	1966-10-12
1967	1967-06-08	1967-09-27
1968	1968-05-05	1968-10-15
1969	1969-05-15	1969-09-04
1970	1970-06-08	1970-09-16
1971	1971-05-01	1971-08-31
1972	1972-05-15	1972-09-08
1973	1973-05-04	1973-09-25
1974	1974-06-06	1974-09-10
1975	1975-06-02	1975-09-16
1976	1976-06-16	1976-09-30
1977	1977-05-20	1977-09-09
1978	1978-06-11	1978-08-24
1979	1979-06-02	1979-09-24
1980	1980-06-15	1980-08-31
1981	1981-06-03	1981-09-23
1982	1982-05-11	1982-09-28
1983	1983-05-14	1983-09-17
1984	1984-05-20	1984-10-06
1985	1985-04-10	1985-09-25
1986	1986-05-22	1986-09-18
1987	1987-06-08	1987-09-27
1988	1988-06-11	1988-09-13
1989	1989-04-05	1989-08-28
1990	1990-05-25	1990-09-24
1991	1991-06-14	1991-10-01
1992	1992-05-11	1992-10-06
1993	1993-05-27	1993-09-25
1994	1994-05-16	1994-10-03
1995	1995-05-26	1995-09-14
1996	1996-05-08	1996-08-29
1997	1997-05-17	1997-10-10
1998	1998-04-09	1998-09-12
1999	1999-05-31	1999-10-04
2000	2000-04-17	2000-09-21
2001	2001-05-18	2001-10-03
2002	2002-05-03	2002-08-25
2003	2003-04-30	2003-09-23
2004	2004-06-11	2004-09-21
2005	2005-05-30	2005-09-17
2006	2006-05-20	2006-10-04
2007	2007-05-11	2007-10-05
2008	2008-05-18	2008-09-12
2009	2009-05-14	2009-09-16
2010	2010-05-26	2010-09-19
2011	2011-06-06	2011-09-19
2012	2012-04-30	2012-10-02
2013	2013-04-26	2013-09-26
2014	2014-06-08	2014-08-27
2015	2015-05-05	2015-09-19
2016	2016-04-17	2016-09-18
2017	2017-06-06	2017-09-19
2021	2021-04-30	2021-09-27
2025	2025-06-03	2025-08-21

Every Fixed Threshold

Fixed thresholds at Nis
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	73	95	2012	57
35 C (95 F): Days	65	38	1952	32
40 C (104 F): Days	12	10	2007	3
90 F (32.2 C): Days	72	66	1952	47
100 F (37.8 C): Days	35	16	2007	9
110 F (43.3 C): Days	1	1	2007	1
0 C (32 F): Ice days (max	72	41	1954	3
0 C (32 F): Frost days (min	73	117	1993	13
-10 C (14 F): Days with min	61	22	1954	1
-20 C (-4 F): Days with min	6	4	1963	1
20 C (68 F): Tropical nights (min	61	20	2012	3
25 C (77 F): Days with min	1	1	1952	1
10 mm (0.39 in): Days with 10 mm or more rain	79	33	2014	2
25 mm (0.98 in): Days with 25 mm or more rain	68	5	1957	2
50 mm (1.97 in): Days with 50 mm or more rain	8	2	2014	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1943.

Download the Data

Data for Nis 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).

Nis Threshold Days by Year (RIE00100814)

Key Facts for Nis Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related