Rjazan Threshold Days by Year (RSM00027730)

15 fixed thresholds counted per year at Rjazan (RSM00027730): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rjazan Thresholds

Rjazan: days with 10 mm (0.39 in) or more of precipitation in 93 years, most in 1990 with 23.
Rjazan: days with a maximum temperature at or below 0 C (32 F) in 91 years, most in 1942 with 132.
Rjazan: nights with a minimum temperature at or below 0 C (32 F) in 88 years, most in 1946 with 188.
Rjazan: nights with a minimum temperature at or below -10 C (14 F) in 88 years, most in 1963 with 100.
15 fixed thresholds have at least one qualifying day at Rjazan.

Days at or above 30 C (86 F)

80 years with a qualifying day

Days per year at Rjazan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 53 in 2010.

Days at or above 30 C (86 F) per year at Rjazan
Year	Days	Decade average
1925	1	5.5
1929	10	5.5
1930	8	13.4
1932	8	13.4
1933	6	13.4
1934	2	13.4
1935	6	13.4
1936	27	13.4
1937	6	13.4
1938	36	13.4
1939	22	13.4
1940	14	8.7
1941	10	8.7
1942	4	8.7
1943	5	8.7
1944	2	8.7
1946	14	8.7
1947	5	8.7
1948	22	8.7
1949	2	8.7
1951	8	9.3
1952	2	9.3
1953	4	9.3
1954	24	9.3
1956	10	9.3
1957	9	9.3
1958	6	9.3
1959	11	9.3
1960	17	6.8
1961	11	6.8
1962	1	6.8
1963	4	6.8
1964	8	6.8
1965	1	6.8
1966	9	6.8
1967	7	6.8
1968	6	6.8
1969	4	6.8
1970	7	11
1971	5	11
1972	32	11
1973	1	11
1977	11	11
1979	10	11
1980	1	7.8
1981	27	7.8
1982	2	7.8
1984	4	7.8
1985	3	7.8
1986	5	7.8
1987	1	7.8
1988	18	7.8
1989	9	7.8
1990	1	9.3
1991	11	9.3
1992	12	9.3
1993	2	9.3
1995	17	9.3
1996	7	9.3
1997	3	9.3
1998	17	9.3
1999	14	9.3
2000	1	9.9
2001	12	9.9
2002	17	9.9
2004	2	9.9
2005	3	9.9
2006	8	9.9
2007	28	9.9
2008	12	9.9
2009	6	9.9
2010	53	16.4
2011	20	16.4
2012	9	16.4
2013	11	16.4
2014	18	16.4
2015	7	16.4
2016	14	16.4
2017	6	16.4
2018	10	16.4

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

First to last qualifying date each year at Rjazan
Year	First date	Last date
1925	1925-07-13	1925-07-13
1929	1929-07-09	1929-08-26
1930	1930-07-20	1930-08-24
1932	1932-07-17	1932-08-23
1933	1933-07-16	1933-08-01
1934	1934-05-20	1934-08-17
1935	1935-06-23	1935-08-17
1936	1936-06-02	1936-08-08
1937	1937-06-12	1937-07-02
1938	1938-07-03	1938-09-08
1939	1939-05-21	1939-08-03
1940	1940-06-25	1940-08-25
1941	1941-07-04	1941-07-17
1942	1942-08-05	1942-08-08
1943	1943-07-11	1943-08-08
1944	1944-09-09	1944-09-10
1946	1946-06-03	1946-08-23
1947	1947-06-25	1947-07-11
1948	1948-06-02	1948-08-15
1949	1949-06-09	1949-06-11
1951	1951-06-29	1951-07-17
1952	1952-06-26	1952-06-28
1953	1953-06-06	1953-08-02
1954	1954-06-13	1954-08-20
1956	1956-06-16	1956-08-31
1957	1957-05-11	1957-08-23
1958	1958-05-28	1958-07-26
1959	1959-06-09	1959-07-31
1960	1960-06-15	1960-08-03
1961	1961-06-14	1961-08-08
1962	1962-05-29	1962-05-29
1963	1963-07-09	1963-08-10
1964	1964-06-22	1964-08-04
1965	1965-07-15	1965-07-15
1966	1966-05-27	1966-08-24
1967	1967-05-07	1967-05-24
1968	1968-06-21	1968-07-08
1969	1969-07-09	1969-08-29
1970	1970-07-16	1970-08-13
1971	1971-06-09	1971-08-14
1972	1972-06-16	1972-08-26
1973	1973-06-30	1973-06-30
1977	1977-07-30	1977-08-09
1979	1979-05-19	1979-08-26
1980	1980-07-24	1980-07-24
1981	1981-06-11	1981-08-23
1982	1982-08-28	1982-08-29
1984	1984-05-24	1984-07-19
1985	1985-08-09	1985-08-11
1986	1986-05-31	1986-08-31
1987	1987-06-17	1987-06-17
1988	1988-06-05	1988-08-26
1989	1989-06-12	1989-08-02
1990	1990-07-08	1990-07-08
1991	1991-06-18	1991-08-19
1992	1992-06-19	1992-08-31
1993	1993-07-22	1993-07-23
1995	1995-05-21	1995-09-02
1996	1996-07-09	1996-08-22
1997	1997-06-28	1997-08-28
1998	1998-06-09	1998-08-04
1999	1999-06-09	1999-07-18
2000	2000-05-30	2000-05-30
2001	2001-07-15	2001-08-11
2002	2002-06-20	2002-08-02
2004	2004-08-23	2004-08-24
2005	2005-05-23	2005-05-25
2006	2006-06-04	2006-07-14
2007	2007-05-20	2007-08-25
2008	2008-07-14	2008-09-07
2009	2009-06-11	2009-07-19
2010	2010-06-12	2010-08-19
2011	2011-06-20	2011-08-16
2012	2012-07-10	2012-08-08
2013	2013-05-16	2013-08-11
2014	2014-06-04	2014-08-16
2015	2015-05-29	2015-09-24
2016	2016-06-26	2016-08-24
2017	2017-07-28	2017-08-21
2018	2018-06-23	2018-08-28

Every Fixed Threshold

Fixed thresholds at Rjazan
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	80	53	2010	10
35 C (95 F): Days	10	22	2010	1
90 F (32.2 C): Days	46	33	2010	3
100 F (37.8 C): Days	2	8	2010	8
0 C (32 F): Ice days (max	91	132	1942	111
0 C (32 F): Frost days (min	88	188	1946	157
-10 C (14 F): Days with min	88	100	1963	65
-20 C (-4 F): Days with min	88	45	1963	5
-30 C (-22 F): Days with min	30	11	1956	1
-40 C (-40 F): Days with min	1	1	1940	1
20 C (68 F): Tropical nights (min	40	18	2010	2
25 C (77 F): Days with min	1	1	2010	1
10 mm (0.39 in): Days with 10 mm or more rain	93	23	1990	10
25 mm (0.98 in): Days with 25 mm or more rain	69	5	1933	2
50 mm (1.97 in): Days with 50 mm or more rain	10	2	1951	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1925.

Download the Data

Data for Rjazan 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).

Rjazan Threshold Days by Year (RSM00027730)

Key Facts for Rjazan Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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