Rio Frio Threshold Days by Year (MXN00028080)

16 fixed thresholds counted per year at Rio Frio (MXN00028080): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rio Frio Thresholds

Rio Frio: days with a maximum temperature at or above 30 C (86 F) in 43 years, most in 2008 with 303.
Rio Frio: days with a maximum temperature at or above 35 C (95 F) in 43 years, most in 2006 with 184.
Rio Frio: days with a maximum temperature at or above 90 F (32.2 C) in 43 years, most in 2011 with 247.
Rio Frio: days with a maximum temperature at or above 100 F (37.8 C) in 43 years, most in 1996 with 94.
16 fixed thresholds have at least one qualifying day at Rio Frio.

Days at or above 30 C (86 F)

43 years with a qualifying day

Days per year at Rio Frio with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 303 in 2008.

Days at or above 30 C (86 F) per year at Rio Frio
Year	Days	Decade average
1968	232	238.5
1969	245	238.5
1970	242	258.8
1971	295	258.8
1972	290	258.8
1973	259	258.8
1974	265	258.8
1975	283	258.8
1976	225	258.8
1977	244	258.8
1978	242	258.8
1979	243	258.8
1980	250	256.5
1981	251	256.5
1982	265	256.5
1983	257	256.5
1984	247	256.5
1985	272	256.5
1986	252	256.5
1987	249	256.5
1988	256	256.5
1989	266	256.5
1990	255	260.4
1991	239	260.4
1992	235	260.4
1993	241	260.4
1994	259	260.4
1995	282	260.4
1996	264	260.4
1997	263	260.4
1998	285	260.4
1999	281	260.4
2000	265	272.9
2001	247	272.9
2002	252	272.9
2003	270	272.9
2004	286	272.9
2006	265	272.9
2008	303	272.9
2009	295	272.9
2010	264	282.3
2011	294	282.3
2012	289	282.3

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

First to last qualifying date each year at Rio Frio
Year	First date	Last date
1968	1968-01-04	1968-12-27
1969	1969-01-23	1969-12-28
1970	1970-01-11	1970-12-29
1971	1971-01-01	1971-12-30
1972	1972-01-01	1972-12-30
1973	1973-01-04	1973-12-31
1974	1974-01-08	1974-12-30
1975	1975-01-08	1975-12-28
1976	1976-01-01	1976-12-28
1977	1977-01-28	1977-12-31
1978	1978-01-06	1978-12-23
1979	1979-01-23	1979-12-23
1980	1980-01-11	1980-12-17
1981	1981-02-09	1981-12-29
1982	1982-01-02	1982-12-24
1983	1983-01-29	1983-12-28
1984	1984-02-11	1984-12-24
1985	1985-01-27	1985-12-31
1986	1986-01-01	1986-12-17
1987	1987-01-27	1987-12-25
1988	1988-01-16	1988-12-31
1989	1989-01-01	1989-11-28
1990	1990-01-11	1990-12-29
1991	1991-01-27	1991-12-01
1992	1992-02-04	1992-12-31
1993	1993-01-09	1993-12-18
1994	1994-01-27	1994-12-16
1995	1995-01-06	1995-12-18
1996	1996-01-01	1996-12-31
1997	1997-01-01	1997-12-09
1998	1998-01-03	1998-12-28
1999	1999-01-01	1999-12-20
2000	2000-01-03	2000-11-12
2001	2001-01-28	2001-12-07
2002	2002-01-18	2002-11-19
2003	2003-02-03	2003-12-27
2004	2004-01-01	2004-12-15
2006	2006-01-02	2006-12-21
2008	2008-01-04	2008-12-31
2009	2009-01-02	2009-12-24
2010	2010-01-19	2010-12-31
2011	2011-01-03	2011-12-31
2012	2012-01-16	2012-12-25

Every Fixed Threshold

Fixed thresholds at Rio Frio
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	43	303	2008	289
35 C (95 F): Days	43	184	2006	120
40 C (104 F): Days	40	41	1998	13
45 C (113 F): Days	10	3	1984	2
90 F (32.2 C): Days	43	247	2011	219
100 F (37.8 C): Days	43	94	1996	9
110 F (43.3 C): Days	15	5	1998	4
120 F (48.9 C): Days	1	1	1999	1
0 C (32 F): Frost days (min	4	3	1989	2
20 C (68 F): Tropical nights (min	42	235	1972	214
25 C (77 F): Days with min	42	82	1980	21
10 mm (0.39 in): Days with 10 mm or more rain	43	42	2012	42
25 mm (0.98 in): Days with 25 mm or more rain	43	20	1993	16
50 mm (1.97 in): Days with 50 mm or more rain	42	12	2008	5
100 mm (3.94 in): Days with 100 mm or more rain	29	4	1993	2
200 mm (7.87 in): Days with 200 mm or more rain	3	1	1997	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1968.

Download the Data

Data for Rio Frio 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).

Rio Frio Threshold Days by Year (MXN00028080)

Key Facts for Rio Frio Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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