Clearlake Park Threshold Days by Year (USC00041807)

14 fixed thresholds counted per year at Clearlake Park (USC00041807): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Clearlake Park Thresholds

Clearlake Park: days with a maximum temperature at or above 30 C (86 F) in 32 years, most in 1936 with 115.
Clearlake Park: days with a maximum temperature at or above 35 C (95 F) in 32 years, most in 1936 with 55.
Clearlake Park: days with a maximum temperature at or above 90 F (32.2 C) in 32 years, most in 1936 with 92.
Clearlake Park: days with a maximum temperature at or above 100 F (37.8 C) in 32 years, most in 1939 with 33.
14 fixed thresholds have at least one qualifying day at Clearlake Park.

Days at or above 30 C (86 F)

32 years with a qualifying day

Days per year at Clearlake Park with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 115 in 1936.

Days at or above 30 C (86 F) per year at Clearlake Park
Year	Days	Decade average
1912	62	83
1913	90	83
1914	75	83
1915	92	83
1916	84	83
1917	94	83
1918	84	83
1922	85	84.3
1927	76	84.3
1928	92	84.3
1932	104	104.8
1933	96	104.8
1934	107	104.8
1935	106	104.8
1936	115	104.8
1937	98	104.8
1938	106	104.8
1939	106	104.8
1940	98	91.4
1941	77	91.4
1942	93	91.4
1943	94	91.4
1944	95	91.4
1945	109	91.4
1946	85	91.4
1947	95	91.4
1948	64	91.4
1949	104	91.4
1950	104	101.8
1951	115	101.8
1952	106	101.8
1953	82	101.8

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

First to last qualifying date each year at Clearlake Park
Year	First date	Last date
1912	1912-05-10	1912-09-29
1913	1913-04-25	1913-10-22
1914	1914-05-17	1914-09-29
1915	1915-04-16	1915-10-07
1916	1916-05-01	1916-10-21
1917	1917-06-07	1917-10-24
1918	1918-04-21	1918-10-13
1922	1922-05-12	1922-09-29
1927	1927-04-24	1927-10-22
1928	1928-05-12	1928-10-19
1932	1932-05-08	1932-10-10
1933	1933-04-27	1933-10-17
1934	1934-05-10	1934-10-11
1935	1935-05-20	1935-10-09
1936	1936-04-11	1936-11-18
1937	1937-05-12	1937-10-22
1938	1938-05-12	1938-09-22
1939	1939-04-16	1939-10-12
1940	1940-05-13	1940-10-11
1941	1941-05-10	1941-10-03
1942	1942-05-20	1942-10-07
1943	1943-05-21	1943-10-14
1944	1944-05-04	1944-10-02
1945	1945-04-19	1945-10-13
1946	1946-04-23	1946-10-13
1947	1947-04-13	1947-10-04
1948	1948-05-23	1948-10-08
1949	1949-05-06	1949-10-15
1950	1950-04-19	1950-10-13
1951	1951-04-09	1951-10-08
1952	1952-05-17	1952-10-14
1953	1953-04-21	1953-10-08

Every Fixed Threshold

Fixed thresholds at Clearlake Park
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	32	115	1936	82
35 C (95 F): Days	32	55	1936	34
40 C (104 F): Days	23	15	1950	1
90 F (32.2 C): Days	32	92	1936	69
100 F (37.8 C): Days	32	33	1939	16
0 C (32 F): Ice days (max	3	2	1932	2
0 C (32 F): Frost days (min	31	119	1914	25
-10 C (14 F): Days with min	4	5	1932	3
20 C (68 F): Tropical nights (min	18	11	1949	3
10 mm (0.39 in): Days with 10 mm or more rain	24	39	1941	14
25 mm (0.98 in): Days with 25 mm or more rain	24	15	1940	2
50 mm (1.97 in): Days with 50 mm or more rain	13	4	1937	1
10 cm (3.9 in): Days with 10 cm or more snowfall	4	1	1942	1
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1948	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1912.

Download the Data

Data for Clearlake Park 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).

Clearlake Park Threshold Days by Year (USC00041807)

Key Facts for Clearlake Park Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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