Brownsville Threshold Days by Year (USC00461173)

17 fixed thresholds counted per year at Brownsville (USC00461173): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Brownsville Thresholds

Brownsville: days with 10 mm (0.39 in) or more of precipitation in 30 years, most in 1950 with 55.
Brownsville: days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1948 with 15.
Brownsville: nights with a minimum temperature at or below 0 C (32 F) in 29 years, most in 1930 with 147.
Brownsville: nights with a minimum temperature at or below -10 C (14 F) in 29 years, most in 1943 with 33.
17 fixed thresholds have at least one qualifying day at Brownsville.

Days at or above 30 C (86 F)

26 years with a qualifying day

Days per year at Brownsville with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 117 in 1953.

Days at or above 30 C (86 F) per year at Brownsville
Year	Days	Decade average
1924	62	73.2
1925	95	73.2
1926	70	73.2
1928	61	73.2
1929	78	73.2
1930	99	82.9
1931	78	82.9
1932	82	82.9
1933	68	82.9
1934	83	82.9
1935	67	82.9
1938	75	82.9
1939	111	82.9
1941	84	75.9
1943	83	75.9
1944	104	75.9
1945	85	75.9
1946	61	75.9
1947	55	75.9
1948	65	75.9
1949	70	75.9
1950	36	89.4
1951	93	89.4
1952	108	89.4
1953	117	89.4
1954	93	89.4

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

First to last qualifying date each year at Brownsville
Year	First date	Last date
1924	1924-05-06	1924-09-12
1925	1925-04-23	1925-09-27
1926	1926-05-01	1926-10-05
1928	1928-05-03	1928-10-18
1929	1929-03-25	1929-09-29
1930	1930-04-11	1930-09-27
1931	1931-05-18	1931-09-23
1932	1932-05-07	1932-09-23
1933	1933-05-23	1933-10-01
1934	1934-05-05	1934-09-29
1935	1935-05-28	1935-09-26
1938	1938-04-27	1938-10-11
1939	1939-04-25	1939-10-11
1941	1941-04-19	1941-10-08
1943	1943-05-06	1943-09-29
1944	1944-04-22	1944-09-21
1945	1945-03-19	1945-10-18
1946	1946-05-15	1946-09-28
1947	1947-04-05	1947-09-21
1948	1948-04-24	1948-09-19
1949	1949-05-01	1949-10-11
1950	1950-03-27	1950-10-21
1951	1951-04-29	1951-10-23
1952	1952-03-21	1952-10-02
1953	1953-05-04	1953-10-20
1954	1954-03-25	1954-10-14

Every Fixed Threshold

Fixed thresholds at Brownsville
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	26	117	1953	93
35 C (95 F): Days	22	43	1953	21
40 C (104 F): Days	1	3	1953	3
90 F (32.2 C): Days	26	86	1953	57
100 F (37.8 C): Days	10	11	1953	1
0 C (32 F): Ice days (max	26	20	1930	5
0 C (32 F): Frost days (min	29	147	1930	103
-10 C (14 F): Days with min	29	33	1943	14
-20 C (-4 F): Days with min	16	6	1935	1
20 C (68 F): Tropical nights (min	29	15	1949	5
25 C (77 F): Days with min	2	1	1925	1
10 mm (0.39 in): Days with 10 mm or more rain	30	55	1950	40
25 mm (0.98 in): Days with 25 mm or more rain	30	15	1948	8
50 mm (1.97 in): Days with 50 mm or more rain	17	3	1954	3
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1950	1
10 cm (3.9 in): Days with 10 cm or more snowfall	6	4	1928	3
25 cm (9.8 in): Days with 25 cm or more snowfall	4	3	1950	3

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1924.

Download the Data

Data for Brownsville 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).

Brownsville Threshold Days by Year (USC00461173)

Key Facts for Brownsville Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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