Tisul Threshold Days by Year (RSM00029557)

13 fixed thresholds counted per year at Tisul (RSM00029557): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tisul Thresholds

Tisul: days with 10 mm (0.39 in) or more of precipitation in 81 years, most in 1996 with 19.
Tisul: days with a maximum temperature at or below 0 C (32 F) in 80 years, most in 1952 with 162.
Tisul: nights with a minimum temperature at or below 0 C (32 F) in 79 years, most in 1970 with 224.
Tisul: nights with a minimum temperature at or below -10 C (14 F) in 79 years, most in 1976 with 145.
13 fixed thresholds have at least one qualifying day at Tisul.

Days at or above 30 C (86 F)

75 years with a qualifying day

Days per year at Tisul with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 19 in 1953.

Days at or above 30 C (86 F) per year at Tisul
Year	Days	Decade average
1936	3	2.8
1937	3	2.8
1938	1	2.8
1939	4	2.8
1940	4	4.1
1941	3	4.1
1942	7	4.1
1943	7	4.1
1944	6	4.1
1947	1	4.1
1949	1	4.1
1950	3	5.5
1951	4	5.5
1952	7	5.5
1953	19	5.5
1954	1	5.5
1955	9	5.5
1956	4	5.5
1957	4	5.5
1958	1	5.5
1959	3	5.5
1961	1	6.1
1962	6	6.1
1963	5	6.1
1964	6	6.1
1965	14	6.1
1966	2	6.1
1967	2	6.1
1968	5	6.1
1969	14	6.1
1970	2	4.4
1971	5	4.4
1972	1	4.4
1973	1	4.4
1974	10	4.4
1975	9	4.4
1976	4	4.4
1977	5	4.4
1978	2	4.4
1979	5	4.4
1980	7	4.6
1981	4	4.6
1982	3	4.6
1983	3	4.6
1984	1	4.6
1986	7	4.6
1989	7	4.6
1990	6	6.8
1991	8	6.8
1992	8	6.8
1993	3	6.8
1994	8	6.8
1995	4	6.8
1996	6	6.8
1997	3	6.8
1998	11	6.8
1999	11	6.8
2000	4	7
2001	13	7
2002	5	7
2003	8	7
2004	8	7
2005	9	7
2006	9	7
2007	6	7
2008	6	7
2009	2	7
2010	6	8.8
2011	5	8.8
2012	16	8.8
2014	13	8.8
2015	7	8.8
2016	4	8.8
2017	9	8.8
2018	10	8.8

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

First to last qualifying date each year at Tisul
Year	First date	Last date
1936	1936-06-30	1936-07-02
1937	1937-06-17	1937-08-05
1938	1938-08-09	1938-08-09
1939	1939-06-07	1939-08-11
1940	1940-06-14	1940-07-21
1941	1941-06-08	1941-07-11
1942	1942-06-07	1942-07-31
1943	1943-06-03	1943-08-26
1944	1944-06-07	1944-08-19
1947	1947-07-01	1947-07-01
1949	1949-06-29	1949-06-29
1950	1950-06-20	1950-08-21
1951	1951-06-06	1951-07-28
1952	1952-05-30	1952-08-01
1953	1953-06-01	1953-09-18
1954	1954-08-03	1954-08-03
1955	1955-05-30	1955-08-16
1956	1956-05-24	1956-08-13
1957	1957-06-21	1957-07-05
1958	1958-06-23	1958-06-23
1959	1959-05-25	1959-07-01
1961	1961-06-28	1961-06-28
1962	1962-07-26	1962-08-17
1963	1963-06-09	1963-07-10
1964	1964-06-02	1964-07-26
1965	1965-06-03	1965-08-16
1966	1966-06-04	1966-09-01
1967	1967-06-06	1967-06-07
1968	1968-05-28	1968-07-16
1969	1969-06-15	1969-09-09
1970	1970-06-23	1970-06-24
1971	1971-05-27	1971-06-24
1972	1972-08-02	1972-08-02
1973	1973-06-02	1973-06-02
1974	1974-05-25	1974-08-04
1975	1975-05-29	1975-07-29
1976	1976-06-07	1976-06-10
1977	1977-06-20	1977-07-20
1978	1978-06-19	1978-06-20
1979	1979-06-24	1979-08-03
1980	1980-05-25	1980-07-07
1981	1981-05-18	1981-06-22
1982	1982-05-18	1982-08-16
1983	1983-06-11	1983-06-27
1984	1984-06-25	1984-06-25
1986	1986-07-01	1986-07-30
1989	1989-07-11	1989-08-07
1990	1990-05-21	1990-07-12
1991	1991-05-13	1991-07-29
1992	1992-05-16	1992-07-15
1993	1993-07-11	1993-08-29
1994	1994-06-06	1994-07-16
1995	1995-07-04	1995-08-24
1996	1996-07-08	1996-08-11
1997	1997-05-27	1997-08-17
1998	1998-06-02	1998-08-17
1999	1999-05-24	1999-07-18
2000	2000-07-07	2000-08-08
2001	2001-05-25	2001-08-19
2002	2002-05-22	2002-08-12
2003	2003-06-07	2003-07-09
2004	2004-05-16	2004-08-15
2005	2005-06-24	2005-08-22
2006	2006-06-08	2006-09-10
2007	2007-07-07	2007-09-04
2008	2008-05-31	2008-08-11
2009	2009-06-09	2009-08-09
2010	2010-06-15	2010-09-01
2011	2011-07-01	2011-08-02
2012	2012-06-06	2012-09-03
2014	2014-06-17	2014-07-22
2015	2015-07-01	2015-09-02
2016	2016-06-11	2016-07-10
2017	2017-06-17	2017-08-04
2018	2018-06-19	2018-08-21

Every Fixed Threshold

Fixed thresholds at Tisul
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	75	19	1953	10
35 C (95 F): Days	4	1	1936	1
90 F (32.2 C): Days	48	6	1953	2
0 C (32 F): Ice days (max	80	162	1952	132
0 C (32 F): Frost days (min	79	224	1970	194
-10 C (14 F): Days with min	79	145	1976	122
-20 C (-4 F): Days with min	79	86	1976	73
-30 C (-22 F): Days with min	79	53	2010	29
-40 C (-40 F): Days with min	43	19	1969	8
20 C (68 F): Tropical nights (min	4	1	1979	1
10 mm (0.39 in): Days with 10 mm or more rain	81	19	1996	9
25 mm (0.98 in): Days with 25 mm or more rain	48	4	1938	2
50 mm (1.97 in): Days with 50 mm or more rain	10	1	1938	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1936.

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Data for Tisul 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).

Tisul Threshold Days by Year (RSM00029557)

Key Facts for Tisul Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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