Logan Threshold Days by Year (USC00465353)

17 fixed thresholds counted per year at Logan (USC00465353): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Logan Thresholds

Logan: days with 10 mm (0.39 in) or more of precipitation in 100 years, most in 1975 with 57.
Logan: days with 25 mm (0.98 in) or more of precipitation in 100 years, most in 2004 with 18.
Logan: days with a maximum temperature at or above 30 C (86 F) in 86 years, most in 1941 with 116.
Logan: days with a maximum temperature at or above 90 F (32.2 C) in 86 years, most in 1941 with 75.
17 fixed thresholds have at least one qualifying day at Logan.

Days at or above 30 C (86 F)

86 years with a qualifying day

Days per year at Logan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 116 in 1941.

Days at or above 30 C (86 F) per year at Logan
Year	Days	Decade average
1903	87	71.6
1904	54	71.6
1905	45	71.6
1906	80	71.6
1907	48	71.6
1908	107	71.6
1909	80	71.6
1910	103	103
1939	111	111
1940	81	94.3
1941	116	94.3
1942	99	94.3
1943	98	94.3
1944	103	94.3
1946	72	94.3
1947	90	94.3
1949	95	94.3
1950	57	93
1951	98	93
1952	97	93
1953	111	93
1954	106	93
1955	99	93
1956	77	93
1957	102	93
1958	73	93
1959	110	93
1960	88	80.6
1961	75	80.6
1962	101	80.6
1963	67	80.6
1964	93	80.6
1965	90	80.6
1966	74	80.6
1967	56	80.6
1968	73	80.6
1969	89	80.6
1970	87	62.3
1971	56	62.3
1972	52	62.3
1973	84	62.3
1974	55	62.3
1975	86	62.3
1976	57	62.3
1979	21	62.3
1981	74	59.6
1982	35	59.6
1983	65	59.6
1984	59	59.6
1985	50	59.6
1986	73	59.6
1989	61	59.6
1990	73	75.2
1991	99	75.2
1992	50	75.2
1993	77	75.2
1994	67	75.2
1995	84	75.2
1996	73	75.2
1997	51	75.2
1998	90	75.2
1999	88	75.2
2000	75	82.9
2001	80	82.9
2002	106	82.9
2003	65	82.9
2004	87	82.9
2005	98	82.9
2008	84	82.9
2009	68	82.9
2010	110	93.4
2011	90	93.4
2012	94	93.4
2013	74	93.4
2014	76	93.4
2015	93	93.4
2016	106	93.4
2017	81	93.4
2018	108	93.4
2019	102	93.4
2020	65	78.5
2021	64	78.5
2023	64	78.5
2024	104	78.5
2025	82	78.5
2026	92	78.5

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

First to last qualifying date each year at Logan
Year	First date	Last date
1903	1903-03-17	1903-10-07
1904	1904-03-22	1904-09-29
1905	1905-04-10	1905-10-02
1906	1906-04-27	1906-09-21
1907	1907-03-21	1907-09-21
1908	1908-03-18	1908-10-21
1909	1909-04-05	1909-10-10
1910	1910-03-23	1910-10-21
1939	1939-04-25	1939-10-28
1940	1940-04-04	1940-10-28
1941	1941-04-14	1941-10-10
1942	1942-03-17	1942-10-04
1943	1943-05-06	1943-10-02
1944	1944-04-22	1944-09-27
1946	1946-04-02	1946-10-07
1947	1947-04-06	1947-10-22
1949	1949-05-02	1949-10-22
1950	1950-03-28	1950-09-11
1951	1951-04-26	1951-10-07
1952	1952-04-21	1952-10-02
1953	1953-04-10	1953-10-21
1954	1954-03-26	1954-10-15
1955	1955-04-18	1955-10-08
1956	1956-04-28	1956-09-24
1957	1957-04-21	1957-09-21
1958	1958-04-25	1958-09-27
1959	1959-04-02	1959-10-07
1960	1960-04-14	1960-10-03
1961	1961-04-25	1961-11-04
1962	1962-04-26	1962-10-17
1963	1963-04-02	1963-10-12
1964	1964-04-18	1964-09-27
1965	1965-04-12	1965-09-23
1966	1966-03-23	1966-09-05
1967	1967-04-07	1967-09-21
1968	1968-05-04	1968-09-25
1969	1969-04-18	1969-10-14
1970	1970-04-30	1970-10-13
1971	1971-04-14	1971-09-30
1972	1972-04-20	1972-09-26
1973	1973-04-22	1973-10-05
1974	1974-04-02	1974-09-29
1975	1975-05-21	1975-10-15
1976	1976-03-05	1976-09-10
1979	1979-06-11	1979-09-05
1981	1981-04-04	1981-09-15
1982	1982-05-07	1982-09-13
1983	1983-05-08	1983-09-19
1984	1984-04-27	1984-09-14
1985	1985-04-19	1985-10-15
1986	1986-04-05	1986-10-02
1989	1989-03-28	1989-09-22
1990	1990-03-13	1990-09-11
1991	1991-04-08	1991-10-05
1992	1992-05-03	1992-09-22
1993	1993-05-09	1993-09-15
1994	1994-04-15	1994-09-16
1995	1995-04-10	1995-09-15
1996	1996-04-20	1996-09-14
1997	1997-05-19	1997-10-14
1998	1998-03-28	1998-09-30
1999	1999-04-10	1999-09-27
2000	2000-04-21	2000-09-24
2001	2001-04-09	2001-09-14
2002	2002-04-16	2002-10-06
2003	2003-04-04	2003-10-12
2004	2004-04-18	2004-09-16
2005	2005-04-06	2005-09-29
2008	2008-04-11	2008-10-15
2009	2009-04-25	2009-09-24
2010	2010-04-02	2010-10-27
2011	2011-04-11	2011-09-27
2012	2012-03-20	2012-10-26
2013	2013-04-10	2013-10-07
2014	2014-04-14	2014-10-03
2015	2015-04-10	2015-09-20
2016	2016-04-18	2016-10-21
2017	2017-04-11	2017-10-14
2018	2018-04-14	2018-10-09
2019	2019-04-12	2019-10-06
2020	2020-03-29	2020-09-11
2021	2021-04-28	2021-09-20
2023	2023-04-05	2023-10-06
2024	2024-04-15	2024-10-14
2025	2025-04-16	2025-10-08
2026	2026-03-08	2026-10-15

Every Fixed Threshold

Fixed thresholds at Logan
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	86	116	1941	92
35 C (95 F): Days	74	34	1953	12
40 C (104 F): Days	2	1	1954	1
90 F (32.2 C): Days	86	75	1941	46
100 F (37.8 C): Days	18	10	1953	1
0 C (32 F): Ice days (max	85	32	2010	9
0 C (32 F): Frost days (min	83	126	1962	51
-10 C (14 F): Days with min	77	36	1963	14
-20 C (-4 F): Days with min	15	5	1963	2
20 C (68 F): Tropical nights (min	82	73	2018	64
25 C (77 F): Days with min	4	1	1954	1
10 mm (0.39 in): Days with 10 mm or more rain	100	57	1975	29
25 mm (0.98 in): Days with 25 mm or more rain	100	18	2004	12
50 mm (1.97 in): Days with 50 mm or more rain	73	4	1963	2
100 mm (3.94 in): Days with 100 mm or more rain	5	1	1909	1
10 cm (3.9 in): Days with 10 cm or more snowfall	41	3	1960	1
25 cm (9.8 in): Days with 25 cm or more snowfall	6	1	1971	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1903.

Download the Data

Data for Logan 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).

Logan Threshold Days by Year (USC00465353)

Key Facts for Logan Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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