West Palm Beach Threshold Days by Year (USC00089520)

11 fixed thresholds counted per year at West Palm Beach (USC00089520): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for West Palm Beach Thresholds

West Palm Beach: days with a maximum temperature at or above 30 C (86 F) in 26 years, most in 1948 with 198.
West Palm Beach: days with a maximum temperature at or above 90 F (32.2 C) in 26 years, most in 1948 with 66.
West Palm Beach: days with 10 mm (0.39 in) or more of precipitation in 26 years, most in 1947 with 65.
West Palm Beach: days with 25 mm (0.98 in) or more of precipitation in 26 years, most in 1947 with 35.
11 fixed thresholds have at least one qualifying day at West Palm Beach.

Days at or above 30 C (86 F)

26 years with a qualifying day

Days per year at West Palm Beach with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 198 in 1948.

Days at or above 30 C (86 F) per year at West Palm Beach
Year	Days	Decade average
1930	102	100.3
1931	96	100.3
1932	99	100.3
1933	91	100.3
1934	109	100.3
1935	101	100.3
1936	107	100.3
1937	104	100.3
1938	88	100.3
1939	106	100.3
1940	95	111.7
1941	113	111.7
1942	103	111.7
1943	100	111.7
1944	107	111.7
1945	92	111.7
1946	98	111.7
1947	99	111.7
1948	198	111.7
1951	128	116.1
1952	131	116.1
1953	110	116.1
1954	78	116.1
1957	120	116.1
1958	122	116.1
1959	124	116.1

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

First to last qualifying date each year at West Palm Beach
Year	First date	Last date
1930	1930-03-19	1930-10-30
1931	1931-05-12	1931-10-16
1932	1932-04-27	1932-10-17
1933	1933-04-10	1933-10-12
1934	1934-05-22	1934-11-05
1935	1935-03-25	1935-11-22
1936	1936-04-02	1936-10-27
1937	1937-03-18	1937-10-19
1938	1938-04-19	1938-10-24
1939	1939-03-31	1939-10-14
1940	1940-02-11	1940-09-26
1941	1941-06-03	1941-11-14
1942	1942-05-16	1942-09-28
1943	1943-02-06	1943-11-01
1944	1944-02-10	1944-10-01
1945	1945-04-24	1945-10-07
1946	1946-04-12	1946-10-31
1947	1947-01-20	1947-12-14
1948	1948-02-14	1948-11-29
1951	1951-05-03	1951-11-02
1952	1952-02-16	1952-11-11
1953	1953-03-18	1953-12-13
1954	1954-03-14	1954-12-09
1957	1957-03-25	1957-11-25
1958	1958-02-28	1958-11-28
1959	1959-02-11	1959-11-06

Every Fixed Threshold

Fixed thresholds at West Palm Beach
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	26	198	1948	124
35 C (95 F): Days	9	4	1944	1
90 F (32.2 C): Days	26	66	1948	13
0 C (32 F): Frost days (min	2	1	1934	1
20 C (68 F): Tropical nights (min	25	281	1946	252
25 C (77 F): Days with min	25	66	1938	54
10 mm (0.39 in): Days with 10 mm or more rain	26	65	1947	50
25 mm (0.98 in): Days with 25 mm or more rain	26	35	1947	21
50 mm (1.97 in): Days with 50 mm or more rain	26	13	1947	8
100 mm (3.94 in): Days with 100 mm or more rain	14	6	1947	2
200 mm (7.87 in): Days with 200 mm or more rain	3	2	1933	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1930.

Download the Data

Data for West Palm Beach 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).

West Palm Beach Threshold Days by Year (USC00089520)

Key Facts for West Palm Beach Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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