Bor Threshold Days by Year (RSM00023884)

13 fixed thresholds counted per year at Bor (RSM00023884): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bor Thresholds

Bor: days with 10 mm (0.39 in) or more of precipitation in 89 years, most in 2007 with 18.
Bor: days with a maximum temperature at or below 0 C (32 F) in 79 years, most in 1964 with 190.
Bor: nights with a minimum temperature at or below 0 C (32 F) in 79 years, most in 1996 with 252.
Bor: nights with a minimum temperature at or below -10 C (14 F) in 79 years, most in 1966 with 183.
13 fixed thresholds have at least one qualifying day at Bor.

Days at or above 30 C (86 F)

73 years with a qualifying day

Days per year at Bor with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 23 in 2016.

Days at or above 30 C (86 F) per year at Bor
Year	Days	Decade average
1938	2	5.5
1939	9	5.5
1942	8	3
1944	2	3
1945	1	3
1946	1	3
1948	3	3
1950	4	4.8
1951	2	4.8
1952	3	4.8
1953	1	4.8
1954	6	4.8
1955	6	4.8
1956	8	4.8
1957	9	4.8
1959	4	4.8
1961	2	7.6
1962	9	7.6
1963	4	7.6
1964	10	7.6
1965	4	7.6
1966	1	7.6
1967	12	7.6
1968	13	7.6
1969	13	7.6
1970	5	6.2
1971	4	6.2
1972	3	6.2
1973	5	6.2
1974	2	6.2
1975	8	6.2
1976	8	6.2
1977	9	6.2
1978	9	6.2
1979	9	6.2
1980	2	6.1
1981	5	6.1
1982	9	6.1
1983	7	6.1
1984	12	6.1
1985	2	6.1
1986	6	6.1
1987	6	6.1
1989	6	6.1
1990	8	8.2
1991	9	8.2
1992	5	8.2
1993	13	8.2
1994	9	8.2
1995	2	8.2
1996	14	8.2
1997	2	8.2
1998	7	8.2
1999	13	8.2
2000	6	9.1
2001	10	9.1
2002	9	9.1
2003	9	9.1
2004	7	9.1
2005	12	9.1
2006	16	9.1
2007	4	9.1
2009	9	9.1
2010	1	12.3
2011	5	12.3
2012	15	12.3
2013	12	12.3
2014	17	12.3
2015	10	12.3
2016	23	12.3
2017	15	12.3
2018	13	12.3
2025	12	12

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

First to last qualifying date each year at Bor
Year	First date	Last date
1938	1938-08-09	1938-08-10
1939	1939-06-05	1939-08-04
1942	1942-07-23	1942-07-31
1944	1944-06-29	1944-07-24
1945	1945-07-28	1945-07-28
1946	1946-07-11	1946-07-11
1948	1948-07-03	1948-07-07
1950	1950-06-16	1950-08-05
1951	1951-07-23	1951-07-27
1952	1952-06-04	1952-08-01
1953	1953-07-16	1953-07-16
1954	1954-06-08	1954-08-03
1955	1955-05-29	1955-07-04
1956	1956-06-03	1956-07-09
1957	1957-06-05	1957-07-11
1959	1959-06-28	1959-07-05
1961	1961-07-01	1961-07-02
1962	1962-06-23	1962-08-02
1963	1963-07-05	1963-07-08
1964	1964-06-29	1964-07-26
1965	1965-05-18	1965-08-01
1966	1966-07-20	1966-07-20
1967	1967-06-08	1967-07-24
1968	1968-05-23	1968-07-18
1969	1969-06-16	1969-07-27
1970	1970-06-20	1970-07-13
1971	1971-06-19	1971-06-24
1972	1972-06-27	1972-08-03
1973	1973-06-19	1973-07-14
1974	1974-06-27	1974-06-28
1975	1975-07-06	1975-07-23
1976	1976-06-22	1976-07-07
1977	1977-06-23	1977-07-01
1978	1978-07-03	1978-07-25
1979	1979-06-05	1979-07-23
1980	1980-07-06	1980-07-27
1981	1981-06-08	1981-07-15
1982	1982-06-21	1982-08-08
1983	1983-06-23	1983-06-29
1984	1984-06-13	1984-07-08
1985	1985-06-20	1985-07-19
1986	1986-06-20	1986-07-19
1987	1987-07-09	1987-07-20
1989	1989-07-09	1989-07-15
1990	1990-05-22	1990-07-11
1991	1991-06-04	1991-07-29
1992	1992-07-07	1992-08-14
1993	1993-07-05	1993-07-25
1994	1994-06-11	1994-07-17
1995	1995-07-12	1995-07-15
1996	1996-07-01	1996-07-26
1997	1997-07-13	1997-07-14
1998	1998-07-20	1998-08-18
1999	1999-05-24	1999-07-26
2000	2000-06-15	2000-07-08
2001	2001-05-28	2001-08-08
2002	2002-05-23	2002-07-21
2003	2003-06-24	2003-07-10
2004	2004-06-05	2004-06-29
2005	2005-07-04	2005-08-22
2006	2006-06-20	2006-07-25
2007	2007-07-05	2007-07-20
2009	2009-06-09	2009-07-23
2010	2010-07-17	2010-07-17
2011	2011-06-02	2011-06-08
2012	2012-06-08	2012-07-27
2013	2013-06-14	2013-08-03
2014	2014-06-16	2014-07-23
2015	2015-06-07	2015-07-20
2016	2016-06-09	2016-08-06
2017	2017-06-15	2017-08-06
2018	2018-06-14	2018-07-11
2025	2025-06-05	2025-07-29

Every Fixed Threshold

Fixed thresholds at Bor
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	73	23	2016	12
35 C (95 F): Days	5	3	1999	3
90 F (32.2 C): Days	48	11	1999	2
0 C (32 F): Ice days (max	79	190	1964	72
0 C (32 F): Frost days (min	79	252	1996	75
-10 C (14 F): Days with min	79	183	1966	46
-20 C (-4 F): Days with min	79	137	1966	21
-30 C (-22 F): Days with min	79	87	1966	11
-40 C (-40 F): Days with min	76	38	1969	15
20 C (68 F): Tropical nights (min	11	1	1967	1
10 mm (0.39 in): Days with 10 mm or more rain	89	18	2007	14
25 mm (0.98 in): Days with 25 mm or more rain	47	3	2007	1
50 mm (1.97 in): Days with 50 mm or more rain	3	1	1949	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1938.

Download the Data

Data for Bor 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).

Bor Threshold Days by Year (RSM00023884)

Key Facts for Bor Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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