Perm Threshold Days by Year (RSM00028224)

13 fixed thresholds counted per year at Perm (RSM00028224): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Perm Thresholds

Perm: days with 10 mm (0.39 in) or more of precipitation in 135 years, most in 1962 with 26.
Perm: nights with a minimum temperature at or below 0 C (32 F) in 129 years, most in 1941 with 214.
Perm: nights with a minimum temperature at or below -10 C (14 F) in 129 years, most in 1896 with 139.
Perm: nights with a minimum temperature at or below -20 C (-4 F) in 129 years, most in 1933 with 70.
13 fixed thresholds have at least one qualifying day at Perm.

Days at or above 30 C (86 F)

86 years with a qualifying day

Days per year at Perm with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 30 in 1936.

Days at or above 30 C (86 F) per year at Perm
Year	Days	Decade average
1915	2	3
1916	3	3
1917	4	3
1918	5	3
1919	1	3
1922	2	4.8
1923	6	4.8
1925	9	4.8
1927	2	4.8
1928	1	4.8
1929	9	4.8
1930	12	13.6
1931	13	13.6
1932	9	13.6
1933	18	13.6
1934	15	13.6
1935	10	13.6
1936	30	13.6
1937	5	13.6
1938	13	13.6
1939	11	13.6
1940	11	5.2
1942	5	5.2
1943	4	5.2
1944	7	5.2
1945	1	5.2
1946	2	5.2
1947	2	5.2
1948	9	5.2
1949	6	5.2
1951	5	8.7
1952	15	8.7
1953	17	8.7
1954	12	8.7
1955	5	8.7
1956	4	8.7
1957	5	8.7
1958	12	8.7
1959	3	8.7
1960	5	3.5
1961	2	3.5
1962	2	3.5
1963	9	3.5
1964	3	3.5
1965	4	3.5
1966	2	3.5
1968	1	3.5
1970	3	4.3
1971	5	4.3
1973	6	4.3
1974	7	4.3
1975	3	4.3
1977	2	4.3
1981	19	10.4
1982	14	10.4
1983	2	10.4
1984	1	10.4
1985	5	10.4
1986	1	10.4
1987	14	10.4
1988	22	10.4
1989	16	10.4
1990	3	5
1991	8	5
1995	3	5
1996	3	5
1997	2	5
1998	14	5
1999	2	5
2000	7	7.1
2001	6	7.1
2002	6	7.1
2003	5	7.1
2004	13	7.1
2005	6	7.1
2006	9	7.1
2007	8	7.1
2008	8	7.1
2009	3	7.1
2010	19	11.4
2011	11	11.4
2012	11	11.4
2013	7	11.4
2015	8	11.4
2016	16	11.4
2018	8	11.4

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

First to last qualifying date each year at Perm
Year	First date	Last date
1915	1915-07-14	1915-07-19
1916	1916-05-24	1916-06-25
1917	1917-06-28	1917-07-13
1918	1918-06-24	1918-07-21
1919	1919-07-18	1919-07-18
1922	1922-07-20	1922-07-28
1923	1923-06-23	1923-07-08
1925	1925-06-22	1925-08-19
1927	1927-07-21	1927-07-22
1928	1928-07-12	1928-07-12
1929	1929-06-07	1929-08-27
1930	1930-06-11	1930-08-23
1931	1931-06-29	1931-07-24
1932	1932-06-28	1932-08-14
1933	1933-06-02	1933-08-01
1934	1934-06-02	1934-08-26
1935	1935-06-19	1935-08-21
1936	1936-06-02	1936-08-09
1937	1937-06-30	1937-07-31
1938	1938-06-19	1938-08-27
1939	1939-06-13	1939-08-04
1940	1940-06-14	1940-08-27
1942	1942-05-31	1942-06-04
1943	1943-07-13	1943-08-12
1944	1944-05-24	1944-06-27
1945	1945-06-18	1945-06-18
1946	1946-06-21	1946-06-22
1947	1947-07-14	1947-07-15
1948	1948-06-03	1948-08-15
1949	1949-06-21	1949-08-23
1951	1951-07-24	1951-08-31
1952	1952-05-26	1952-07-29
1953	1953-06-06	1953-08-17
1954	1954-06-29	1954-07-26
1955	1955-05-18	1955-08-02
1956	1956-06-17	1956-06-29
1957	1957-05-23	1957-08-26
1958	1958-06-18	1958-08-14
1959	1959-07-04	1959-07-07
1960	1960-06-13	1960-06-25
1961	1961-07-23	1961-07-31
1962	1962-07-16	1962-07-17
1963	1963-06-19	1963-07-22
1964	1964-07-13	1964-07-15
1965	1965-07-04	1965-07-07
1966	1966-06-02	1966-07-19
1968	1968-06-25	1968-06-25
1970	1970-06-15	1970-07-23
1971	1971-07-23	1971-07-27
1973	1973-06-12	1973-07-06
1974	1974-07-04	1974-07-25
1975	1975-06-07	1975-07-06
1977	1977-06-09	1977-07-14
1981	1981-06-15	1981-08-30
1982	1982-06-16	1982-09-03
1983	1983-07-08	1983-08-14
1984	1984-06-10	1984-06-10
1985	1985-06-22	1985-06-27
1986	1986-07-09	1986-07-09
1987	1987-05-25	1987-08-04
1988	1988-06-05	1988-07-25
1989	1989-06-10	1989-07-19
1990	1990-06-18	1990-07-12
1991	1991-05-30	1991-06-30
1995	1995-06-21	1995-08-29
1996	1996-06-16	1996-07-14
1997	1997-07-30	1997-08-01
1998	1998-06-12	1998-08-03
1999	1999-06-24	1999-07-24
2000	2000-06-20	2000-07-23
2001	2001-07-14	2001-08-02
2002	2002-07-04	2002-07-27
2003	2003-08-04	2003-08-08
2004	2004-06-01	2004-07-23
2005	2005-07-25	2005-07-30
2006	2006-06-06	2006-07-19
2007	2007-05-29	2007-08-19
2008	2008-06-19	2008-07-24
2009	2009-06-07	2009-06-19
2010	2010-06-28	2010-08-12
2011	2011-07-02	2011-08-14
2012	2012-06-08	2012-08-09
2013	2013-06-18	2013-07-06
2015	2015-05-30	2015-06-29
2016	2016-05-27	2016-08-25
2018	2018-06-25	2018-07-27

Every Fixed Threshold

Fixed thresholds at Perm
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	86	30	1936	8
35 C (95 F): Days	6	2	1931	2
90 F (32.2 C): Days	54	12	2010	1
0 C (32 F): Ice days (max	102	159	1952	2
0 C (32 F): Frost days (min	129	214	1941	78
-10 C (14 F): Days with min	129	139	1896	25
-20 C (-4 F): Days with min	129	70	1933	5
-30 C (-22 F): Days with min	115	20	1919	5
-40 C (-40 F): Days with min	25	8	1969	1
20 C (68 F): Tropical nights (min	53	6	1952	2
10 mm (0.39 in): Days with 10 mm or more rain	135	26	1962	9
25 mm (0.98 in): Days with 25 mm or more rain	92	5	1962	1
50 mm (1.97 in): Days with 50 mm or more rain	10	1	1890	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1915.

Download the Data

Data for Perm 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).

Perm Threshold Days by Year (RSM00028224)

Key Facts for Perm Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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