Matamoras Threshold Days by Year (USC00365470)

16 fixed thresholds counted per year at Matamoras (USC00365470): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Matamoras Thresholds

Matamoras: days with 10 mm (0.39 in) or more of precipitation in 97 years, most in 2011 with 58.
Matamoras: days with 25 mm (0.98 in) or more of precipitation in 97 years, most in 2011 with 22.
Matamoras: days with 50 mm (1.97 in) or more of precipitation in 69 years, most in 2011 with 8.
Matamoras: days with 10 cm (3.9 in) or more of snowfall in 52 years, most in 1961 with 8.
16 fixed thresholds have at least one qualifying day at Matamoras.

Days at or above 30 C (86 F)

43 years with a qualifying day

Days per year at Matamoras with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 63 in 1964.

Days at or above 30 C (86 F) per year at Matamoras
Year	Days	Decade average
1964	63	50.3
1965	54	50.3
1966	63	50.3
1967	36	50.3
1968	45	50.3
1969	41	50.3
1970	52	44.5
1971	44	44.5
1972	30	44.5
1973	52	44.5
1974	32	44.5
1975	47	44.5
1976	41	44.5
1977	55	44.5
1978	51	44.5
1979	41	44.5
1980	60	28.5
1981	38	28.5
1982	34	28.5
1984	15	28.5
1985	4	28.5
1986	13	28.5
1988	40	28.5
1989	24	28.5
1990	24	29
1991	49	29
1992	12	29
1995	39	29
1996	15	29
1997	26	29
1998	28	29
1999	39	29
2000	13	19.1
2001	18	19.1
2002	33	19.1
2003	12	19.1
2004	8	19.1
2006	18	19.1
2007	33	19.1
2008	23	19.1
2009	14	19.1
2010	42	30
2011	18	30

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

First to last qualifying date each year at Matamoras
Year	First date	Last date
1964	1964-05-07	1964-09-24
1965	1965-05-03	1965-09-23
1966	1966-06-04	1966-09-03
1967	1967-06-02	1967-09-06
1968	1968-06-05	1968-09-25
1969	1969-04-27	1969-09-14
1970	1970-05-09	1970-09-26
1971	1971-05-18	1971-09-09
1972	1972-05-24	1972-09-17
1973	1973-04-22	1973-09-05
1974	1974-04-29	1974-09-13
1975	1975-05-20	1975-08-27
1976	1976-04-17	1976-09-15
1977	1977-03-30	1977-09-03
1978	1978-05-20	1978-09-21
1979	1979-05-08	1979-10-22
1980	1980-05-05	1980-09-23
1981	1981-05-24	1981-09-14
1982	1982-05-20	1982-09-14
1984	1984-06-07	1984-08-17
1985	1985-04-22	1985-08-16
1986	1986-05-19	1986-10-01
1988	1988-06-01	1988-08-16
1989	1989-05-20	1989-09-11
1990	1990-04-27	1990-09-03
1991	1991-04-08	1991-09-18
1992	1992-05-22	1992-08-28
1995	1995-05-25	1995-09-15
1996	1996-05-20	1996-09-04
1997	1997-06-11	1997-08-18
1998	1998-03-31	1998-09-28
1999	1999-05-31	1999-09-05
2000	2000-05-07	2000-08-10
2001	2001-05-03	2001-08-11
2002	2002-04-17	2002-09-11
2003	2003-06-25	2003-08-23
2004	2004-05-14	2004-08-29
2006	2006-05-30	2006-08-04
2007	2007-05-16	2007-10-09
2008	2008-06-08	2008-09-15
2009	2009-04-26	2009-08-22
2010	2010-04-08	2010-09-25
2011	2011-06-01	2011-08-02

Every Fixed Threshold

Fixed thresholds at Matamoras
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	43	63	1964	18
35 C (95 F): Days	25	10	1966	1
90 F (32.2 C): Days	41	36	1966	5
100 F (37.8 C): Days	2	2	1966	1
0 C (32 F): Ice days (max	43	47	2003	34
0 C (32 F): Frost days (min	43	170	2002	142
-10 C (14 F): Days with min	43	50	1968	33
-20 C (-4 F): Days with min	28	7	1968	5
20 C (68 F): Tropical nights (min	37	15	1984	4
10 mm (0.39 in): Days with 10 mm or more rain	97	58	2011	58
25 mm (0.98 in): Days with 25 mm or more rain	97	22	2011	22
50 mm (1.97 in): Days with 50 mm or more rain	69	8	2011	8
100 mm (3.94 in): Days with 100 mm or more rain	7	1	1922	1
10 cm (3.9 in): Days with 10 cm or more snowfall	52	8	1961	3
25 cm (9.8 in): Days with 25 cm or more snowfall	21	4	1967	1
50 cm (19.7 in): Days with 50 cm or more snowfall	2	1	1966	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1964.

Download the Data

Data for Matamoras 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).

Matamoras Threshold Days by Year (USC00365470)

Key Facts for Matamoras Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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