Moro Threshold Days by Year (USC00355734)

19 fixed thresholds counted per year at Moro (USC00355734): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Moro Thresholds

Moro: days with a maximum temperature at or below 0 C (32 F) in 106 years, most in 1985 with 68.
Moro: nights with a minimum temperature at or below 0 C (32 F) in 106 years, most in 2017 with 160.
Moro: days with a maximum temperature at or above 30 C (86 F) in 105 years, most in 1958 with 60.
Moro: days with a maximum temperature at or above 90 F (32.2 C) in 105 years, most in 2022 with 45.
19 fixed thresholds have at least one qualifying day at Moro.

Days at or above 30 C (86 F)

105 years with a qualifying day

Days per year at Moro with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 60 in 1958.

Days at or above 30 C (86 F) per year at Moro
Year	Days	Decade average
1917	41	34.7
1918	31	34.7
1919	32	34.7
1920	35	39
1921	27	39
1922	50	39
1923	36	39
1924	42	39
1925	43	39
1926	40	39
1927	36	39
1928	35	39
1929	46	39
1930	35	41.1
1931	49	41.1
1932	33	41.1
1933	36	41.1
1934	46	41.1
1935	42	41.1
1936	36	41.1
1937	39	41.1
1938	50	41.1
1939	45	41.1
1940	43	37
1941	40	37
1942	45	37
1943	35	37
1944	36	37
1945	52	37
1946	34	37
1947	25	37
1948	27	37
1949	33	37
1950	42	35.9
1951	44	35.9
1952	42	35.9
1953	31	35.9
1954	13	35.9
1955	37	35.9
1956	39	35.9
1957	22	35.9
1958	60	35.9
1959	29	35.9
1960	38	31.7
1961	50	31.7
1962	24	31.7
1963	26	31.7
1964	19	31.7
1965	29	31.7
1966	25	31.7
1967	54	31.7
1968	27	31.7
1969	25	31.7
1970	40	30.6
1971	34	30.6
1972	34	30.6
1973	38	30.6
1974	42	30.6
1975	24	30.6
1976	15	30.6
1977	33	30.6
1978	27	30.6
1979	19	30.6
1980	18	29.7
1981	32	29.7
1982	30	29.7
1983	19	29.7
1985	34	29.7
1986	43	29.7
1987	40	29.7
1988	33	29.7
1989	18	29.7
1990	39	36.3
1991	34	36.3
1992	40	36.3
1993	25	36.3
1994	43	36.3
1995	30	36.3
1996	39	36.3
1997	27	36.3
1998	47	36.3
1999	39	36.3
2000	23	37.2
2001	37	37.2
2002	36	37.2
2003	47	37.2
2004	39	37.2
2005	39	37.2
2006	41	37.2
2007	32	37.2
2008	35	37.2
2009	43	37.2
2010	25	38.1
2011	31	38.1
2012	36	38.1
2013	55	38.1
2014	42	38.1
2015	45	38.1
2016	34	38.1
2017	51	38.1
2018	50	38.1
2019	12	38.1
2020	32	44.7
2021	48	44.7
2022	54	44.7

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

First to last qualifying date each year at Moro
Year	First date	Last date
1917	1917-06-15	1917-09-18
1918	1918-06-05	1918-09-18
1919	1919-05-21	1919-08-29
1920	1920-06-22	1920-09-04
1921	1921-06-06	1921-08-29
1922	1922-05-31	1922-09-19
1923	1923-06-27	1923-09-13
1924	1924-05-10	1924-09-14
1925	1925-06-19	1925-09-04
1926	1926-04-27	1926-08-25
1927	1927-06-05	1927-08-22
1928	1928-05-19	1928-09-04
1929	1929-05-21	1929-09-15
1930	1930-06-06	1930-09-05
1931	1931-05-11	1931-09-04
1932	1932-06-11	1932-09-14
1933	1933-06-12	1933-08-28
1934	1934-04-21	1934-09-05
1935	1935-06-04	1935-09-09
1936	1936-05-10	1936-09-21
1937	1937-06-01	1937-09-15
1938	1938-05-23	1938-09-22
1939	1939-05-13	1939-09-23
1940	1940-06-10	1940-09-11
1941	1941-05-23	1941-08-22
1942	1942-06-28	1942-09-26
1943	1943-06-29	1943-09-25
1944	1944-05-27	1944-09-12
1945	1945-06-17	1945-09-13
1946	1946-06-19	1946-08-28
1947	1947-05-06	1947-09-24
1948	1948-05-26	1948-09-12
1949	1949-05-10	1949-09-08
1950	1950-06-03	1950-09-06
1951	1951-05-22	1951-09-18
1952	1952-05-27	1952-09-26
1953	1953-07-05	1953-09-14
1954	1954-05-18	1954-08-29
1955	1955-06-08	1955-09-07
1956	1956-05-17	1956-09-17
1957	1957-05-29	1957-09-24
1958	1958-05-21	1958-10-04
1959	1959-06-19	1959-09-12
1960	1960-06-12	1960-09-18
1961	1961-06-02	1961-09-04
1962	1962-06-23	1962-09-06
1963	1963-06-15	1963-09-28
1964	1964-06-23	1964-09-25
1965	1965-07-02	1965-08-19
1966	1966-05-04	1966-09-23
1967	1967-05-21	1967-09-29
1968	1968-06-17	1968-08-12
1969	1969-05-24	1969-09-12
1970	1970-06-02	1970-10-04
1971	1971-06-22	1971-08-30
1972	1972-05-29	1972-09-05
1973	1973-05-14	1973-09-12
1974	1974-06-11	1974-09-26
1975	1975-06-02	1975-09-15
1976	1976-06-19	1976-09-04
1977	1977-04-25	1977-08-21
1978	1978-06-04	1978-08-10
1979	1979-06-03	1979-09-16
1980	1980-07-02	1980-10-07
1981	1981-06-26	1981-09-18
1982	1982-06-11	1982-09-03
1983	1983-05-24	1983-08-18
1985	1985-06-19	1985-08-27
1986	1986-05-26	1986-09-05
1987	1987-05-07	1987-09-24
1988	1988-06-15	1988-09-15
1989	1989-06-02	1989-09-24
1990	1990-06-21	1990-09-25
1991	1991-06-11	1991-10-01
1992	1992-05-07	1992-08-28
1993	1993-05-12	1993-09-11
1994	1994-05-08	1994-09-28
1995	1995-05-30	1995-09-17
1996	1996-07-02	1996-09-29
1997	1997-05-13	1997-09-26
1998	1998-06-29	1998-09-18
1999	1999-05-25	1999-09-23
2000	2000-06-27	2000-09-15
2001	2001-05-23	2001-09-25
2002	2002-06-14	2002-09-15
2003	2003-06-06	2003-09-27
2004	2004-06-05	2004-09-01
2005	2005-05-28	2005-09-09
2006	2006-05-17	2006-09-09
2007	2007-06-01	2007-09-13
2008	2008-05-17	2008-09-18
2009	2009-05-29	2009-09-24
2010	2010-07-08	2010-09-04
2011	2011-07-03	2011-09-25
2012	2012-04-24	2012-09-21
2013	2013-05-10	2013-09-16
2014	2014-05-16	2014-10-07
2015	2015-05-30	2015-09-13
2016	2016-06-04	2016-09-17
2017	2017-05-24	2017-09-13
2018	2018-05-16	2018-09-07
2019	2019-06-02	2019-09-04
2020	2020-06-20	2020-10-07
2021	2021-06-01	2021-09-06
2022	2022-06-25	2022-09-29

Every Fixed Threshold

Fixed thresholds at Moro
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	105	60	1958	54
35 C (95 F): Days	103	22	2015	22
40 C (104 F): Days	23	4	1928	4
45 C (113 F): Days	1	1	2021	1
90 F (32.2 C): Days	105	45	2022	45
100 F (37.8 C): Days	63	9	1998	9
110 F (43.3 C): Days	4	2	2021	1
0 C (32 F): Ice days (max	106	68	1985	11
0 C (32 F): Frost days (min	106	160	2017	81
-10 C (14 F): Days with min	99	41	1985	13
-20 C (-4 F): Days with min	43	10	1957	2
-30 C (-22 F): Days with min	1	2	1957	2
20 C (68 F): Tropical nights (min	79	6	1961	3
25 C (77 F): Days with min	4	3	1979	1
10 mm (0.39 in): Days with 10 mm or more rain	103	12	1943	1
25 mm (0.98 in): Days with 25 mm or more rain	30	3	1953	1
50 mm (1.97 in): Days with 50 mm or more rain	1	1	1921	1
10 cm (3.9 in): Days with 10 cm or more snowfall	64	5	1950	3
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1948	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1917.

Download the Data

Data for Moro 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).

Moro Threshold Days by Year (USC00355734)

Key Facts for Moro Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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