Lakeport Threshold Days by Year (USC00274475)

15 fixed thresholds counted per year at Lakeport (USC00274475): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lakeport Thresholds

Lakeport: days with a maximum temperature at or above 30 C (86 F) in 33 years, most in 1955 with 48.
Lakeport: days with a maximum temperature at or above 90 F (32.2 C) in 33 years, most in 1949 with 25.
Lakeport: days with a maximum temperature at or below 0 C (32 F) in 33 years, most in 1955 with 77.
Lakeport: nights with a minimum temperature at or below 0 C (32 F) in 33 years, most in 1956 with 175.
15 fixed thresholds have at least one qualifying day at Lakeport.

Days at or above 30 C (86 F)

33 years with a qualifying day

Days per year at Lakeport with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 48 in 1955.

Days at or above 30 C (86 F) per year at Lakeport
Year	Days	Decade average
1949	43	43
1950	26	25.4
1951	19	25.4
1952	33	25.4
1953	37	25.4
1954	11	25.4
1955	48	25.4
1956	11	25.4
1957	23	25.4
1958	14	25.4
1959	32	25.4
1960	13	19.2
1961	21	19.2
1962	14	19.2
1963	28	19.2
1964	22	19.2
1965	28	19.2
1966	23	19.2
1967	9	19.2
1968	17	19.2
1969	17	19.2
1970	27	17.9
1971	19	17.9
1972	9	17.9
1973	17	17.9
1974	21	17.9
1975	21	17.9
1976	16	17.9
1977	15	17.9
1978	20	17.9
1979	14	17.9
1980	14	9
1981	4	9

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

First to last qualifying date each year at Lakeport
Year	First date	Last date
1949	1949-05-05	1949-09-04
1950	1950-06-07	1950-09-09
1951	1951-05-15	1951-09-12
1952	1952-06-15	1952-09-11
1953	1953-05-10	1953-09-05
1954	1954-04-20	1954-08-25
1955	1955-05-22	1955-09-19
1956	1956-06-01	1956-09-05
1957	1957-04-27	1957-09-22
1958	1958-06-30	1958-08-31
1959	1959-05-22	1959-09-09
1960	1960-05-05	1960-09-09
1961	1961-05-13	1961-09-14
1962	1962-04-27	1962-08-27
1963	1963-06-01	1963-10-07
1964	1964-05-07	1964-08-30
1965	1965-05-26	1965-09-22
1966	1966-05-24	1966-08-30
1967	1967-06-03	1967-08-18
1968	1968-06-06	1968-08-25
1969	1969-06-12	1969-09-01
1970	1970-05-01	1970-09-22
1971	1971-06-07	1971-08-19
1972	1972-05-23	1972-07-18
1973	1973-06-11	1973-09-03
1974	1974-05-15	1974-08-22
1975	1975-05-20	1975-08-05
1976	1976-04-17	1976-08-22
1977	1977-05-17	1977-09-02
1978	1978-05-28	1978-08-17
1979	1979-05-09	1979-08-05
1980	1980-06-24	1980-09-02
1981	1981-05-25	1981-07-09

Every Fixed Threshold

Fixed thresholds at Lakeport
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	33	48	1955	4
35 C (95 F): Days	10	7	1949	1
90 F (32.2 C): Days	33	25	1949	3
0 C (32 F): Ice days (max	33	77	1955	50
0 C (32 F): Frost days (min	33	175	1956	126
-10 C (14 F): Days with min	33	72	1970	41
-20 C (-4 F): Days with min	32	16	1968	6
-30 C (-22 F): Days with min	1	3	1957	3
20 C (68 F): Tropical nights (min	30	16	1955	2
10 mm (0.39 in): Days with 10 mm or more rain	33	44	1951	36
25 mm (0.98 in): Days with 25 mm or more rain	33	14	1954	13
50 mm (1.97 in): Days with 50 mm or more rain	21	3	1963	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1954	1
10 cm (3.9 in): Days with 10 cm or more snowfall	33	14	1956	4
25 cm (9.8 in): Days with 25 cm or more snowfall	13	4	1969	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

Download the Data

Data for Lakeport 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).

Lakeport Threshold Days by Year (USC00274475)

Key Facts for Lakeport Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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