Hermanas Threshold Days by Year (USC00293946)

6 fixed thresholds counted per year at Hermanas (USC00293946): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hermanas Thresholds

Hermanas: days with 10 mm (0.39 in) or more of precipitation in 43 years, most in 1958 with 15.
Hermanas: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 1944 with 4.
Hermanas: days with 10 cm (3.9 in) or more of snowfall in 12 years, most in 1915 with 3.
Hermanas: days with 50 mm (1.97 in) or more of precipitation in 8 years, most in 1916 with 1.
6 fixed thresholds have at least one qualifying day at Hermanas.

Days with 10 mm (0.39 in) or more of precipitation

43 years with a qualifying day

Days per year at Hermanas with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 15 in 1958.

Days with 10 mm (0.39 in) or more of precipitation per year at Hermanas
Year	Days	Decade average
1910	1	8
1911	11	8
1912	8	8
1913	11	8
1914	13	8
1915	12	8
1916	7	8
1917	4	8
1918	6	8
1919	7	8
1920	10	8.7
1921	11	8.7
1922	5	8.7
1930	9	8.5
1931	14	8.5
1932	12	8.5
1933	11	8.5
1934	7	8.5
1935	7	8.5
1936	7	8.5
1937	5	8.5
1938	6	8.5
1939	7	8.5
1940	8	8
1941	13	8
1942	11	8
1943	8	8
1944	9	8
1945	4	8
1946	8	8
1947	4	8
1948	6	8
1949	9	8
1950	6	7.5
1951	4	7.5
1952	11	7.5
1953	4	7.5
1954	7	7.5
1955	5	7.5
1956	3	7.5
1957	12	7.5
1958	15	7.5
1959	8	7.5

For each year, a bar from the first to the last day at Hermanas meeting 10 mm (0.39 in).

First to last qualifying date each year at Hermanas
Year	First date	Last date
1910	1910-06-27	1910-06-27
1911	1911-02-18	1911-12-14
1912	1912-06-25	1912-11-17
1913	1913-02-06	1913-12-15
1914	1914-05-29	1914-12-21
1915	1915-01-30	1915-08-28
1916	1916-05-01	1916-10-15
1917	1917-05-19	1917-09-20
1918	1918-01-20	1918-12-12
1919	1919-06-19	1919-12-18
1920	1920-02-07	1920-08-25
1921	1921-02-27	1921-11-30
1922	1922-07-27	1922-11-29
1930	1930-01-08	1930-12-09
1931	1931-01-27	1931-12-10
1932	1932-01-10	1932-12-15
1933	1933-04-26	1933-10-09
1934	1934-07-19	1934-11-20
1935	1935-02-10	1935-12-20
1936	1936-07-09	1936-12-29
1937	1937-07-20	1937-12-27
1938	1938-03-04	1938-12-18
1939	1939-07-03	1939-12-25
1940	1940-02-01	1940-12-24
1941	1941-01-01	1941-09-29
1942	1942-02-27	1942-12-21
1943	1943-06-19	1943-11-28
1944	1944-04-10	1944-10-28
1945	1945-03-24	1945-10-06
1946	1946-01-06	1946-12-11
1947	1947-03-18	1947-08-11
1948	1948-01-28	1948-12-26
1949	1949-01-10	1949-12-10
1950	1950-07-05	1950-09-21
1951	1951-04-19	1951-10-30
1952	1952-03-01	1952-12-29
1953	1953-02-10	1953-07-29
1954	1954-07-20	1954-10-02
1955	1955-07-20	1955-08-23
1956	1956-01-21	1956-08-14
1957	1957-01-03	1957-11-22
1958	1958-02-21	1958-10-14
1959	1959-07-09	1959-10-29

Every Fixed Threshold

Fixed thresholds at Hermanas
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	43	15	1958	8
25 mm (0.98 in): Days with 25 mm or more rain	31	4	1944	2
50 mm (1.97 in): Days with 50 mm or more rain	8	1	1916	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1942	1
10 cm (3.9 in): Days with 10 cm or more snowfall	12	3	1915	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1931	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1910.

Download the Data

Data for Hermanas 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).

Hermanas Threshold Days by Year (USC00293946)

Key Facts for Hermanas Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

Related