Hermosa 3 SSW Threshold Days by Year (USC00393775)

18 fixed thresholds counted per year at Hermosa 3 SSW (USC00393775): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hermosa 3 SSW Thresholds

Hermosa 3 SSW: days with 10 mm (0.39 in) or more of precipitation in 69 years, most in 1915 with 27.
Hermosa 3 SSW: days with 25 mm (0.98 in) or more of precipitation in 64 years, most in 1915 with 8.
Hermosa 3 SSW: days with 10 cm (3.9 in) or more of snowfall in 39 years, most in 2009 with 6.
Hermosa 3 SSW: days with a maximum temperature at or above 30 C (86 F) in 21 years, most in 1911 with 72.
18 fixed thresholds have at least one qualifying day at Hermosa 3 SSW.

Days at or above 30 C (86 F)

21 years with a qualifying day

Days per year at Hermosa 3 SSW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 72 in 1911.

Days at or above 30 C (86 F) per year at Hermosa 3 SSW
Year	Days	Decade average
1906	36	39.5
1907	15	39.5
1908	49	39.5
1909	58	39.5
1911	72	46.3
1912	36	46.3
1913	51	46.3
1914	52	46.3
1915	8	46.3
1916	45	46.3
1917	47	46.3
1918	34	46.3
1919	72	46.3
1920	41	43.6
1921	55	43.6
1922	58	43.6
1923	32	43.6
1924	49	43.6
1925	42	43.6
1926	46	43.6
1927	26	43.6

For each year, a bar from the first to the last day at Hermosa 3 SSW meeting 30 C (86 F).

First to last qualifying date each year at Hermosa 3 SSW
Year	First date	Last date
1906	1906-04-23	1906-10-03
1907	1907-06-29	1907-09-17
1908	1908-04-13	1908-10-02
1909	1909-05-04	1909-10-06
1911	1911-05-07	1911-09-27
1912	1912-05-25	1912-10-04
1913	1913-04-14	1913-09-18
1914	1914-05-24	1914-09-30
1915	1915-07-09	1915-09-22
1916	1916-05-06	1916-09-30
1917	1917-05-15	1917-09-22
1918	1918-06-09	1918-10-14
1919	1919-05-26	1919-09-17
1920	1920-06-08	1920-10-06
1921	1921-05-21	1921-10-13
1922	1922-06-05	1922-10-04
1923	1923-06-24	1923-09-21
1924	1924-05-04	1924-09-30
1925	1925-05-19	1925-09-25
1926	1926-04-29	1926-09-29
1927	1927-04-27	1927-10-21

Every Fixed Threshold

Fixed thresholds at Hermosa 3 SSW
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	21	72	1911	26
35 C (95 F): Days	21	34	1919	1
40 C (104 F): Days	5	2	1926	2
90 F (32.2 C): Days	21	57	1919	5
100 F (37.8 C): Days	14	10	1914	3
0 C (32 F): Ice days (max	21	59	1924	47
0 C (32 F): Frost days (min	19	191	1917	178
-10 C (14 F): Days with min	19	83	1916	66
-20 C (-4 F): Days with min	19	40	1916	17
-30 C (-22 F): Days with min	13	10	1916	3
20 C (68 F): Tropical nights (min	13	15	1926	5
25 C (77 F): Days with min	4	4	1922	3
10 mm (0.39 in): Days with 10 mm or more rain	69	27	1915	15
25 mm (0.98 in): Days with 25 mm or more rain	64	8	1915	4
50 mm (1.97 in): Days with 50 mm or more rain	21	2	1923	2
100 mm (3.94 in): Days with 100 mm or more rain	1	1	2007	1
10 cm (3.9 in): Days with 10 cm or more snowfall	39	6	2009	3
25 cm (9.8 in): Days with 25 cm or more snowfall	8	1	1906	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1906.

Download the Data

Data for Hermosa 3 SSW 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).

Hermosa 3 SSW Threshold Days by Year (USC00393775)

Key Facts for Hermosa 3 SSW Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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