Gregory Threshold Days by Year (USC00393452)

20 fixed thresholds counted per year at Gregory (USC00393452): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Gregory Thresholds

Gregory: days with 10 mm (0.39 in) or more of precipitation in 97 years, most in 1962 with 33.
Gregory: days with 25 mm (0.98 in) or more of precipitation in 97 years, most in 1982 with 15.
Gregory: nights with a minimum temperature at or below 0 C (32 F) in 95 years, most in 2013 with 188.
Gregory: nights with a minimum temperature at or below -10 C (14 F) in 95 years, most in 1978 with 93.
20 fixed thresholds have at least one qualifying day at Gregory.

Days at or above 30 C (86 F)

94 years with a qualifying day

Days per year at Gregory with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 102 in 1936.

Days at or above 30 C (86 F) per year at Gregory
Year	Days	Decade average
1931	87	80.6
1932	62	80.6
1933	79	80.6
1934	91	80.6
1935	68	80.6
1936	102	80.6
1937	63	80.6
1938	82	80.6
1939	91	80.6
1940	80	64.3
1941	75	64.3
1942	54	64.3
1943	75	64.3
1944	53	64.3
1945	50	64.3
1946	56	64.3
1947	66	64.3
1948	66	64.3
1949	68	64.3
1950	39	63.1
1951	33	63.1
1952	87	63.1
1953	74	63.1
1954	62	63.1
1955	88	63.1
1956	70	63.1
1957	45	63.1
1958	57	63.1
1959	76	63.1
1960	51	57.6
1961	67	57.6
1962	39	57.6
1963	64	57.6
1964	66	57.6
1965	44	57.6
1966	60	57.6
1967	59	57.6
1968	61	57.6
1969	65	57.6
1970	87	71.2
1971	71	71.2
1972	58	71.2
1973	72	71.2
1974	75	71.2
1975	76	71.2
1976	78	71.2
1977	54	71.2
1978	73	71.2
1979	68	71.2
1980	91	70.2
1981	69	70.2
1982	65	70.2
1984	75	70.2
1985	63	70.2
1986	51	70.2
1987	70	70.2
1988	83	70.2
1989	65	70.2
1990	64	48.5
1991	75	48.5
1992	31	48.5
1993	33	48.5
1994	60	48.5
1995	62	48.5
1996	32	48.5
1997	44	48.5
1998	46	48.5
1999	38	48.5
2000	64	54.8
2001	46	54.8
2002	65	54.8
2003	54	54.8
2005	67	54.8
2006	63	54.8
2007	62	54.8
2008	48	54.8
2009	24	54.8
2010	51	48.9
2011	49	48.9
2012	83	48.9
2013	36	48.9
2014	34	48.9
2015	41	48.9
2016	52	48.9
2017	48	48.9
2018	44	48.9
2019	51	48.9
2020	60	61.1
2021	63	61.1
2022	70	61.1
2023	58	61.1
2024	51	61.1
2025	63	61.1
2026	63	61.1

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

First to last qualifying date each year at Gregory
Year	First date	Last date
1931	1931-04-12	1931-09-29
1932	1932-05-13	1932-10-02
1933	1933-05-18	1933-10-29
1934	1934-04-29	1934-10-11
1935	1935-06-13	1935-09-24
1936	1936-05-03	1936-10-18
1937	1937-05-28	1937-10-28
1938	1938-04-30	1938-10-12
1939	1939-04-22	1939-10-06
1940	1940-04-14	1940-10-25
1941	1941-05-13	1941-09-20
1942	1942-05-25	1942-10-10
1943	1943-03-29	1943-10-19
1944	1944-05-14	1944-09-26
1945	1945-06-21	1945-10-16
1946	1946-03-31	1946-09-26
1947	1947-06-16	1947-10-21
1948	1948-04-18	1948-09-18
1949	1949-04-25	1949-09-25
1950	1950-05-22	1950-10-30
1951	1951-06-16	1951-10-01
1952	1952-04-07	1952-09-30
1953	1953-04-21	1953-10-19
1954	1954-04-05	1954-10-08
1955	1955-04-26	1955-10-10
1956	1956-06-03	1956-10-16
1957	1957-05-07	1957-09-30
1958	1958-04-16	1958-10-19
1959	1959-04-30	1959-09-14
1960	1960-05-31	1960-10-11
1961	1961-05-10	1961-10-16
1962	1962-04-24	1962-10-14
1963	1963-05-07	1963-10-05
1964	1964-04-16	1964-09-26
1965	1965-04-29	1965-09-09
1966	1966-05-04	1966-10-08
1967	1967-05-22	1967-10-03
1968	1968-04-30	1968-10-30
1969	1969-05-14	1969-09-15
1970	1970-05-07	1970-10-05
1971	1971-04-15	1971-09-14
1972	1972-05-15	1972-10-01
1973	1973-05-18	1973-10-07
1974	1974-05-27	1974-10-10
1975	1975-04-27	1975-10-07
1976	1976-06-01	1976-10-03
1977	1977-04-09	1977-09-08
1978	1978-03-30	1978-10-20
1979	1979-05-27	1979-10-15
1980	1980-04-20	1980-10-09
1981	1981-04-25	1981-09-19
1982	1982-04-14	1982-09-10
1984	1984-05-12	1984-09-21
1985	1985-04-11	1985-09-18
1986	1986-03-28	1986-08-31
1987	1987-04-17	1987-10-01
1988	1988-04-07	1988-09-18
1989	1989-04-21	1989-09-28
1990	1990-04-22	1990-10-05
1991	1991-04-05	1991-10-17
1992	1992-04-30	1992-10-22
1993	1993-05-12	1993-10-06
1994	1994-04-23	1994-09-19
1995	1995-06-06	1995-10-14
1996	1996-04-11	1996-09-11
1997	1997-05-11	1997-10-03
1998	1998-05-18	1998-09-29
1999	1999-06-05	1999-10-10
2000	2000-05-05	2000-10-20
2001	2001-04-29	2001-10-03
2002	2002-05-30	2002-09-17
2003	2003-04-15	2003-10-20
2005	2005-05-21	2005-10-02
2006	2006-04-14	2006-10-08
2007	2007-05-13	2007-10-07
2008	2008-06-15	2008-09-27
2009	2009-04-23	2009-09-09
2010	2010-05-23	2010-10-09
2011	2011-05-09	2011-10-05
2012	2012-03-19	2012-09-17
2013	2013-05-15	2013-10-01
2014	2014-05-28	2014-09-27
2015	2015-06-03	2015-10-12
2016	2016-05-07	2016-09-24
2017	2017-05-08	2017-09-22
2018	2018-05-24	2018-09-17
2019	2019-04-21	2019-09-20
2020	2020-06-02	2020-09-23
2021	2021-04-06	2021-09-29
2022	2022-04-23	2022-10-02
2023	2023-04-12	2023-10-03
2024	2024-04-14	2024-10-03
2025	2025-05-11	2025-10-05
2026	2026-03-22	2026-10-11

Every Fixed Threshold

Fixed thresholds at Gregory
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	94	102	1936	63
35 C (95 F): Days	93	62	1936	11
40 C (104 F): Days	52	34	1936	1
45 C (113 F): Days	1	4	1936	4
90 F (32.2 C): Days	94	75	1936	35
100 F (37.8 C): Days	74	48	1936	3
110 F (43.3 C): Days	6	11	1936	1
0 C (32 F): Ice days (max	94	80	1996	23
0 C (32 F): Frost days (min	95	188	2013	102
-10 C (14 F): Days with min	95	93	1978	26
-20 C (-4 F): Days with min	95	42	1985	10
-30 C (-22 F): Days with min	43	7	1936	2
20 C (68 F): Tropical nights (min	92	35	1936	12
25 C (77 F): Days with min	14	7	1936	1
10 mm (0.39 in): Days with 10 mm or more rain	97	33	1962	15
25 mm (0.98 in): Days with 25 mm or more rain	97	15	1982	5
50 mm (1.97 in): Days with 50 mm or more rain	50	5	2019	1
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1944	1
10 cm (3.9 in): Days with 10 cm or more snowfall	75	9	1985	3
25 cm (9.8 in): Days with 25 cm or more snowfall	30	3	1962	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1931.

Download the Data

Data for Gregory 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Gregory Threshold Days by Year (USC00393452)

Key Facts for Gregory Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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