Las Lomitas Threshold Days by Year (AR000087078)

9 fixed thresholds counted per year at Las Lomitas (AR000087078): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Las Lomitas Thresholds

Las Lomitas: nights with a minimum temperature at or above 20 C (68 F) in 47 years, most in 1980 with 156.
Las Lomitas: nights with a minimum temperature at or above 25 C (77 F) in 47 years, most in 1963 with 37.
Las Lomitas: nights with a minimum temperature at or below 0 C (32 F) in 46 years, most in 1962 with 17.
Las Lomitas: days with a maximum temperature at or above 30 C (86 F) in 44 years, most in 1970 with 229.
9 fixed thresholds have at least one qualifying day at Las Lomitas.

Days at or above 30 C (86 F)

44 years with a qualifying day

Days per year at Las Lomitas with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 229 in 1970.

Days at or above 30 C (86 F) per year at Las Lomitas
Year	Days	Decade average
1957	180	177
1959	174	177
1960	188	197.4
1961	199	197.4
1962	175	197.4
1963	206	197.4
1964	181	197.4
1965	194	197.4
1966	187	197.4
1967	220	197.4
1968	205	197.4
1969	219	197.4
1970	229	201.1
1971	198	201.1
1972	205	201.1
1973	183	201.1
1974	185	201.1
1975	190	201.1
1976	200	201.1
1977	215	201.1
1978	225	201.1
1979	181	201.1
1980	199	196.5
1981	197	196.5
1982	178	196.5
1983	187	196.5
1984	193	196.5
1985	196	196.5
1986	202	196.5
1987	207	196.5
1988	211	196.5
1989	195	196.5
1990	209	197.9
1992	166	197.9
1993	219	197.9
1994	204	197.9
1995	211	197.9
1996	180	197.9
1997	219	197.9
1998	176	197.9
1999	197	197.9
2000	180	201.7
2001	210	201.7
2003	215	201.7

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

First to last qualifying date each year at Las Lomitas
Year	First date	Last date
1957	1957-01-01	1957-12-31
1959	1959-01-01	1959-12-31
1960	1960-01-01	1960-12-31
1961	1961-01-01	1961-12-12
1962	1962-01-01	1962-12-31
1963	1963-01-01	1963-12-31
1964	1964-01-01	1964-12-31
1965	1965-01-01	1965-12-31
1966	1966-01-01	1966-12-31
1967	1967-01-01	1967-12-31
1968	1968-01-01	1968-12-31
1969	1969-01-01	1969-12-31
1970	1970-01-01	1970-12-30
1971	1971-01-02	1971-12-31
1972	1972-01-01	1972-12-31
1973	1973-01-01	1973-12-31
1974	1974-01-01	1974-12-31
1975	1975-01-01	1975-12-31
1976	1976-01-01	1976-12-31
1977	1977-01-01	1977-12-30
1978	1978-01-03	1978-12-31
1979	1979-01-01	1979-12-30
1980	1980-01-02	1980-12-31
1981	1981-01-01	1981-12-31
1982	1982-01-03	1982-12-31
1983	1983-01-01	1983-12-31
1984	1984-01-01	1984-12-31
1985	1985-01-01	1985-12-31
1986	1986-01-01	1986-12-31
1987	1987-01-01	1987-12-31
1988	1988-01-01	1988-12-31
1989	1989-01-01	1989-12-31
1990	1990-01-01	1990-12-31
1992	1992-01-01	1992-12-31
1993	1993-01-02	1993-12-31
1994	1994-01-01	1994-12-31
1995	1995-01-01	1995-12-31
1996	1996-01-02	1996-12-31
1997	1997-01-02	1997-12-31
1998	1998-01-01	1998-12-30
1999	1999-01-01	1999-12-31
2000	2000-01-01	2000-12-31
2001	2001-01-01	2001-12-31
2003	2003-01-01	2003-12-31

Every Fixed Threshold

Fixed thresholds at Las Lomitas
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	44	229	1970	215
35 C (95 F): Days	44	108	1988	93
40 C (104 F): Days	42	27	1990	15
90 F (32.2 C): Days	44	187	1967	153
100 F (37.8 C): Days	44	57	1963	48
110 F (43.3 C): Days	7	2	1968	1
0 C (32 F): Frost days (min	46	17	1962	1
20 C (68 F): Tropical nights (min	47	156	1980	146
25 C (77 F): Days with min	47	37	1963	31

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1957.

Download the Data

Data for Las Lomitas 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Las Lomitas Threshold Days by Year (AR000087078)

Key Facts for Las Lomitas Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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