Cerritos Threshold Days by Year (MXN00024008)

13 fixed thresholds counted per year at Cerritos (MXN00024008): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cerritos Thresholds

Cerritos: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1976 with 32.
Cerritos: days with 25 mm (0.98 in) or more of precipitation in 41 years, most in 1967 with 15.
Cerritos: days with a maximum temperature at or above 30 C (86 F) in 39 years, most in 2006 with 239.
Cerritos: days with 50 mm (1.97 in) or more of precipitation in 37 years, most in 1967 with 9.
13 fixed thresholds have at least one qualifying day at Cerritos.

Days at or above 30 C (86 F)

39 years with a qualifying day

Days per year at Cerritos with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 239 in 2006.

Days at or above 30 C (86 F) per year at Cerritos
Year	Days	Decade average
1965	205	162.2
1966	143	162.2
1967	123	162.2
1968	146	162.2
1969	194	162.2
1970	107	122.2
1971	47	122.2
1972	113	122.2
1973	98	122.2
1974	107	122.2
1975	160	122.2
1976	137	122.2
1977	177	122.2
1978	152	122.2
1979	124	122.2
1983	88	71.2
1984	72	71.2
1985	39	71.2
1987	88	71.2
1988	70	71.2
1989	70	71.2
1990	96	116
1991	110	116
1992	88	116
1994	108	116
1995	144	116
1996	81	116
1997	125	116
1999	176	116
2000	99	122.7
2001	4	122.7
2002	11	122.7
2003	15	122.7
2004	68	122.7
2005	218	122.7
2006	239	122.7
2007	183	122.7
2008	174	122.7
2009	216	122.7

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

First to last qualifying date each year at Cerritos
Year	First date	Last date
1965	1965-01-09	1965-12-13
1966	1966-04-12	1966-12-25
1967	1967-01-01	1967-11-25
1968	1968-02-21	1968-11-18
1969	1969-03-12	1969-11-11
1970	1970-04-25	1970-12-31
1971	1971-03-01	1971-12-28
1972	1972-01-03	1972-11-16
1973	1973-03-01	1973-11-01
1974	1974-02-09	1974-12-06
1975	1975-03-03	1975-11-11
1976	1976-03-01	1976-10-29
1977	1977-01-04	1977-11-28
1978	1978-02-27	1978-11-16
1979	1979-01-26	1979-11-27
1983	1983-02-09	1983-11-23
1984	1984-03-12	1984-10-18
1985	1985-03-14	1985-11-06
1987	1987-03-17	1987-09-28
1988	1988-03-25	1988-09-29
1989	1989-03-15	1989-11-13
1990	1990-04-02	1990-12-21
1991	1991-03-07	1991-11-01
1992	1992-03-20	1992-09-09
1994	1994-04-19	1994-12-09
1995	1995-02-14	1995-10-12
1996	1996-02-28	1996-09-27
1997	1997-02-21	1997-12-07
1999	1999-01-21	1999-12-09
2000	2000-01-02	2000-07-16
2001	2001-04-11	2001-07-16
2002	2002-05-01	2002-07-31
2003	2003-05-02	2003-10-11
2004	2004-05-29	2004-12-13
2005	2005-01-05	2005-12-29
2006	2006-01-01	2006-12-01
2007	2007-01-06	2007-12-22
2008	2008-01-07	2008-12-15
2009	2009-01-05	2009-12-09

Every Fixed Threshold

Fixed thresholds at Cerritos
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	39	239	2006	216
35 C (95 F): Days	33	112	2009	112
40 C (104 F): Days	9	21	2005	7
90 F (32.2 C): Days	36	158	2006	151
100 F (37.8 C): Days	18	47	2005	31
110 F (43.3 C): Days	1	1	2005	1
0 C (32 F): Frost days (min	25	10	1989	2
20 C (68 F): Tropical nights (min	24	118	2003	1
25 C (77 F): Days with min	2	2	2003	1
10 mm (0.39 in): Days with 10 mm or more rain	41	32	1976	19
25 mm (0.98 in): Days with 25 mm or more rain	41	15	1967	5
50 mm (1.97 in): Days with 50 mm or more rain	37	9	1967	1
100 mm (3.94 in): Days with 100 mm or more rain	8	2	1971	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1965.

Download the Data

Data for Cerritos 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).

Cerritos Threshold Days by Year (MXN00024008)

Key Facts for Cerritos Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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