Borzja Threshold Days by Year (RSM00030965)

15 fixed thresholds counted per year at Borzja (RSM00030965): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Borzja Thresholds

Borzja: days with 10 mm (0.39 in) or more of precipitation in 110 years, most in 1994 with 17.
Borzja: nights with a minimum temperature at or below 0 C (32 F) in 103 years, most in 1954 with 247.
Borzja: nights with a minimum temperature at or below -10 C (14 F) in 103 years, most in 1912 with 180.
Borzja: nights with a minimum temperature at or below -20 C (-4 F) in 103 years, most in 1912 with 150.
15 fixed thresholds have at least one qualifying day at Borzja.

Days at or above 30 C (86 F)

90 years with a qualifying day

Days per year at Borzja with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 41 in 1946.

Days at or above 30 C (86 F) per year at Borzja
Year	Days	Decade average
1926	27	13
1927	16	13
1928	6	13
1929	3	13
1930	9	9.6
1931	19	9.6
1933	9	9.6
1934	2	9.6
1938	9	9.6
1940	8	20.8
1941	13	20.8
1942	12	20.8
1943	24	20.8
1944	35	20.8
1946	41	20.8
1947	12	20.8
1949	21	20.8
1950	37	10.3
1951	18	10.3
1952	25	10.3
1953	2	10.3
1954	1	10.3
1955	10	10.3
1956	5	10.3
1957	1	10.3
1958	3	10.3
1959	1	10.3
1960	2	5.2
1961	6	5.2
1962	2	5.2
1963	4	5.2
1964	6	5.2
1965	6	5.2
1966	3	5.2
1967	7	5.2
1968	10	5.2
1969	6	5.2
1970	14	7.9
1971	4	7.9
1972	6	7.9
1973	6	7.9
1974	6	7.9
1975	9	7.9
1976	13	7.9
1977	6	7.9
1978	5	7.9
1979	10	7.9
1980	16	6.2
1981	7	6.2
1982	11	6.2
1983	1	6.2
1984	3	6.2
1985	2	6.2
1986	4	6.2
1987	8	6.2
1988	3	6.2
1989	7	6.2
1990	2	7.3
1991	10	7.3
1992	10	7.3
1993	5	7.3
1994	12	7.3
1995	2	7.3
1996	5	7.3
1997	13	7.3
1998	4	7.3
1999	10	7.3
2000	13	20.6
2001	38	20.6
2002	23	20.6
2003	4	20.6
2004	40	20.6
2005	18	20.6
2006	13	20.6
2007	32	20.6
2008	16	20.6
2009	9	20.6
2010	26	17.9
2011	23	17.9
2012	9	17.9
2014	13	17.9
2015	28	17.9
2016	23	17.9
2017	20	17.9
2018	7	17.9
2019	12	17.9
2020	13	12.5
2022	11	12.5
2023	11	12.5
2025	15	12.5

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

First to last qualifying date each year at Borzja
Year	First date	Last date
1926	1926-05-11	1926-08-16
1927	1927-06-07	1927-08-06
1928	1928-08-04	1928-08-14
1929	1929-07-19	1929-08-15
1930	1930-06-30	1930-08-06
1931	1931-06-29	1931-08-11
1933	1933-05-10	1933-08-02
1934	1934-07-29	1934-07-30
1938	1938-05-27	1938-07-08
1940	1940-06-17	1940-09-05
1941	1941-06-09	1941-08-09
1942	1942-06-18	1942-08-28
1943	1943-05-09	1943-08-14
1944	1944-06-04	1944-08-24
1946	1946-06-02	1946-08-15
1947	1947-06-22	1947-09-11
1949	1949-05-08	1949-08-10
1950	1950-05-26	1950-08-28
1951	1951-05-28	1951-08-05
1952	1952-06-11	1952-08-11
1953	1953-06-14	1953-08-06
1954	1954-07-13	1954-07-13
1955	1955-05-14	1955-08-23
1956	1956-06-27	1956-08-28
1957	1957-06-11	1957-06-11
1958	1958-06-05	1958-08-03
1959	1959-07-11	1959-07-11
1960	1960-06-17	1960-06-29
1961	1961-05-31	1961-07-10
1962	1962-07-12	1962-08-08
1963	1963-06-15	1963-06-18
1964	1964-06-15	1964-08-02
1965	1965-06-09	1965-06-24
1966	1966-05-18	1966-07-27
1967	1967-06-27	1967-08-05
1968	1968-06-01	1968-07-21
1969	1969-06-18	1969-07-20
1970	1970-06-12	1970-08-15
1971	1971-06-20	1971-07-13
1972	1972-05-22	1972-07-28
1973	1973-05-22	1973-07-18
1974	1974-05-26	1974-07-05
1975	1975-05-25	1975-08-19
1976	1976-06-25	1976-09-03
1977	1977-06-26	1977-08-31
1978	1978-05-19	1978-07-31
1979	1979-05-27	1979-07-22
1980	1980-06-21	1980-08-19
1981	1981-06-30	1981-07-26
1982	1982-06-07	1982-08-14
1983	1983-08-08	1983-08-08
1984	1984-06-29	1984-07-19
1985	1985-05-22	1985-06-04
1986	1986-06-12	1986-08-21
1987	1987-05-31	1987-07-27
1988	1988-07-31	1988-08-04
1989	1989-05-29	1989-08-05
1990	1990-05-16	1990-07-21
1991	1991-05-19	1991-08-22
1992	1992-05-25	1992-07-13
1993	1993-05-19	1993-09-02
1994	1994-05-23	1994-08-29
1995	1995-06-04	1995-07-21
1996	1996-05-22	1996-08-31
1997	1997-06-12	1997-07-19
1998	1998-05-14	1998-07-16
1999	1999-06-10	1999-08-15
2000	2000-05-06	2000-09-02
2001	2001-05-12	2001-09-10
2002	2002-06-03	2002-08-16
2003	2003-06-03	2003-07-16
2004	2004-05-23	2004-08-25
2005	2005-06-04	2005-08-23
2006	2006-05-28	2006-08-25
2007	2007-06-02	2007-09-08
2008	2008-06-11	2008-08-19
2009	2009-05-23	2009-08-08
2010	2010-05-22	2010-09-13
2011	2011-06-14	2011-08-28
2012	2012-05-27	2012-08-06
2014	2014-04-29	2014-09-06
2015	2015-05-23	2015-09-15
2016	2016-05-17	2016-08-03
2017	2017-05-26	2017-08-04
2018	2018-05-30	2018-07-27
2019	2019-05-23	2019-08-04
2020	2020-06-16	2020-07-27
2022	2022-06-28	2022-09-09
2023	2023-06-12	2023-09-06
2025	2025-05-27	2025-07-21

Every Fixed Threshold

Fixed thresholds at Borzja
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	90	41	1946	15
35 C (95 F): Days	30	10	1944	5
40 C (104 F): Days	4	2	2010	2
90 F (32.2 C): Days	70	24	1950	8
100 F (37.8 C): Days	9	6	2010	1
0 C (32 F): Ice days (max	91	162	1966	73
0 C (32 F): Frost days (min	103	247	1954	87
-10 C (14 F): Days with min	103	180	1912	62
-20 C (-4 F): Days with min	103	150	1912	50
-30 C (-22 F): Days with min	103	92	1954	28
-40 C (-40 F): Days with min	93	26	1954	2
20 C (68 F): Tropical nights (min	43	7	1946	3
10 mm (0.39 in): Days with 10 mm or more rain	110	17	1994	7
25 mm (0.98 in): Days with 25 mm or more rain	87	6	2013	1
50 mm (1.97 in): Days with 50 mm or more rain	18	1	1903	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1926.

Download the Data

Data for Borzja 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).

Borzja Threshold Days by Year (RSM00030965)

Key Facts for Borzja Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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