Substn 14 Threshold Days by Year

16 fixed thresholds counted per year at Substn 14 (USC00418721): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Substn 14 Thresholds

Substn 14: days with 10 mm (0.39 in) or more of precipitation in 30 years, most in 1923 with 31.
Substn 14: days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1949 with 13.
Substn 14: nights with a minimum temperature at or below 0 C (32 F) in 28 years, most in 1932 with 56.
Substn 14: nights with a minimum temperature at or above 20 C (68 F) in 28 years, most in 1951 with 111.
16 fixed thresholds have at least one qualifying day at Substn 14.

Days at or above 30 C (86 F)

27 years with a qualifying day

Days per year at Substn 14 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 151 in 1937.

Days at or above 30 C (86 F) per year at Substn 14
Year	Days	Decade average
1923	113	127.4
1924	115	127.4
1925	137	127.4
1926	129	127.4
1927	134	127.4
1928	127	127.4
1929	137	127.4
1930	125	129.4
1931	125	129.4
1932	100	129.4
1933	143	129.4
1934	141	129.4
1935	104	129.4
1936	110	129.4
1937	151	129.4
1938	146	129.4
1939	149	129.4
1940	122	117.4
1941	105	117.4
1942	105	117.4
1943	120	117.4
1944	99	117.4
1945	142	117.4
1946	128	117.4
1948	128	117.4
1949	108	117.4
1951	146	146

For each year, a bar from the first to the last day at Substn 14 meeting 30 C (86 F).

First to last qualifying date each year at Substn 14
Year	First date	Last date
1923	1923-04-07	1923-10-01
1924	1924-03-27	1924-10-04
1925	1925-03-17	1925-10-23
1926	1926-05-20	1926-10-18
1927	1927-04-02	1927-10-23
1928	1928-03-08	1928-10-04
1929	1929-03-06	1929-10-11
1930	1930-04-05	1930-09-30
1931	1931-04-02	1931-10-27
1932	1932-03-20	1932-10-18
1933	1933-03-13	1933-10-25
1934	1934-03-07	1934-11-01
1935	1935-03-25	1935-10-21
1936	1936-04-11	1936-10-18
1937	1937-04-15	1937-10-25
1938	1938-03-14	1938-11-17
1939	1939-03-23	1939-10-07
1940	1940-02-29	1940-10-20
1941	1941-04-15	1941-10-09
1942	1942-03-15	1942-09-18
1943	1943-03-15	1943-09-21
1944	1944-04-20	1944-09-23
1945	1945-04-02	1945-11-01
1946	1946-03-14	1946-09-27
1948	1948-04-13	1948-10-15
1949	1949-04-14	1949-11-29
1951	1951-03-06	1951-10-11

Every Fixed Threshold

Fixed thresholds at Substn 14
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	27	151	1937	146
35 C (95 F): Days	27	64	1951	64
40 C (104 F): Days	6	2	1927	2
90 F (32.2 C): Days	27	114	1939	112
100 F (37.8 C): Days	22	12	1943	11
0 C (32 F): Ice days (max	17	7	1948	4
0 C (32 F): Frost days (min	28	56	1932	36
-10 C (14 F): Days with min	17	5	1930	5
20 C (68 F): Tropical nights (min	28	111	1951	111
25 C (77 F): Days with min	8	3	1944	2
10 mm (0.39 in): Days with 10 mm or more rain	30	31	1923	6
25 mm (0.98 in): Days with 25 mm or more rain	30	13	1949	1
50 mm (1.97 in): Days with 50 mm or more rain	24	5	1935	2
100 mm (3.94 in): Days with 100 mm or more rain	4	2	1932	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1948	1
10 cm (3.9 in): Days with 10 cm or more snowfall	5	1	1923	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1923.

Download the Data

Data for Substn 14 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Substn 14 Threshold Days by Year

Key Facts for Substn 14 Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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