Casa Blanca Threshold Days by Year (MXN00016017)

11 fixed thresholds counted per year at Casa Blanca (MXN00016017): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Casa Blanca Thresholds

Casa Blanca: days with 10 mm (0.39 in) or more of precipitation in 52 years, most in 1958 with 52.
Casa Blanca: days with 25 mm (0.98 in) or more of precipitation in 52 years, most in 1958 with 15.
Casa Blanca: days with a maximum temperature at or above 30 C (86 F) in 36 years, most in 1994 with 184.
Casa Blanca: days with a maximum temperature at or above 90 F (32.2 C) in 35 years, most in 1994 with 85.
11 fixed thresholds have at least one qualifying day at Casa Blanca.

Days at or above 30 C (86 F)

36 years with a qualifying day

Days per year at Casa Blanca with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 184 in 1994.

Days at or above 30 C (86 F) per year at Casa Blanca
Year	Days	Decade average
1965	7	53
1967	99	53
1970	45	100.3
1971	130	100.3
1972	107	100.3
1973	97	100.3
1974	119	100.3
1975	122	100.3
1976	102	100.3
1977	86	100.3
1978	88	100.3
1979	107	100.3
1980	100	94
1981	71	94
1982	112	94
1983	88	94
1984	71	94
1985	58	94
1986	80	94
1987	113	94
1988	126	94
1989	121	94
1990	101	145
1991	94	145
1993	171	145
1994	184	145
1995	165	145
1996	156	145
1997	165	145
1998	118	145
1999	151	145
2004	83	110.8
2005	132	110.8
2007	103	110.8
2008	94	110.8
2009	142	110.8

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

First to last qualifying date each year at Casa Blanca
Year	First date	Last date
1965	1965-06-09	1965-07-04
1967	1967-03-14	1967-11-11
1970	1970-04-01	1970-07-13
1971	1971-01-29	1971-11-23
1972	1972-02-24	1972-09-08
1973	1973-02-05	1973-11-08
1974	1974-02-12	1974-11-24
1975	1975-02-17	1975-11-09
1976	1976-02-21	1976-09-13
1977	1977-03-04	1977-10-12
1978	1978-02-27	1978-07-18
1979	1979-03-13	1979-10-22
1980	1980-03-06	1980-10-18
1981	1981-03-02	1981-10-06
1982	1982-03-10	1982-09-30
1983	1983-03-03	1983-06-30
1984	1984-03-17	1984-10-18
1985	1985-03-17	1985-06-15
1986	1986-03-16	1986-11-20
1987	1987-02-19	1987-09-18
1988	1988-02-16	1988-11-16
1989	1989-02-28	1989-11-15
1990	1990-03-04	1990-12-15
1991	1991-03-07	1991-06-17
1993	1993-01-18	1993-12-16
1994	1994-01-27	1994-12-14
1995	1995-01-11	1995-12-09
1996	1996-02-14	1996-11-07
1997	1997-02-22	1997-12-10
1998	1998-02-22	1998-10-19
1999	1999-02-02	1999-11-20
2004	2004-02-17	2004-10-23
2005	2005-02-10	2005-12-14
2007	2007-01-21	2007-12-22
2008	2008-02-19	2008-08-14
2009	2009-02-17	2009-11-24

Every Fixed Threshold

Fixed thresholds at Casa Blanca
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	36	184	1994	142
35 C (95 F): Days	31	45	1995	21
40 C (104 F): Days	2	1	1967	1
90 F (32.2 C): Days	35	85	1994	51
100 F (37.8 C): Days	12	15	1998	5
0 C (32 F): Frost days (min	25	28	1999	2
20 C (68 F): Tropical nights (min	1	1	1993	1
10 mm (0.39 in): Days with 10 mm or more rain	52	52	1958	26
25 mm (0.98 in): Days with 25 mm or more rain	52	15	1958	7
50 mm (1.97 in): Days with 50 mm or more rain	35	5	1967	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1991	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 Casa Blanca 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).

Casa Blanca Threshold Days by Year (MXN00016017)

Key Facts for Casa Blanca Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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