Nilchi Threshold Days by Year (MXN00004023)

14 fixed thresholds counted per year at Nilchi (MXN00004023): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Nilchi Thresholds

Nilchi: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 1990 with 45.
Nilchi: days with 25 mm (0.98 in) or more of precipitation in 44 years, most in 1980 with 23.
Nilchi: days with a maximum temperature at or above 30 C (86 F) in 43 years, most in 1996 with 366.
Nilchi: days with a maximum temperature at or above 35 C (95 F) in 43 years, most in 1991 with 355.
14 fixed thresholds have at least one qualifying day at Nilchi.

Days at or above 30 C (86 F)

43 years with a qualifying day

Days per year at Nilchi with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 366 in 1996.

Days at or above 30 C (86 F) per year at Nilchi
Year	Days	Decade average
1965	277	298.8
1966	292	298.8
1967	308	298.8
1968	306	298.8
1969	311	298.8
1970	324	317.4
1971	349	317.4
1972	345	317.4
1973	328	317.4
1974	335	317.4
1977	292	317.4
1978	288	317.4
1979	278	317.4
1980	297	339.9
1981	281	339.9
1983	324	339.9
1984	354	339.9
1985	359	339.9
1986	357	339.9
1987	363	339.9
1988	362	339.9
1989	362	339.9
1990	362	355.6
1991	365	355.6
1992	336	355.6
1993	365	355.6
1994	360	355.6
1995	365	355.6
1996	366	355.6
1998	340	355.6
1999	341	355.6
2000	344	336.9
2001	350	336.9
2002	318	336.9
2003	324	336.9
2004	340	336.9
2005	350	336.9
2006	346	336.9
2007	327	336.9
2008	340	336.9
2009	330	336.9
2010	293	313.5
2011	334	313.5

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

First to last qualifying date each year at Nilchi
Year	First date	Last date
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	1969-01-02	1969-12-31
1970	1970-01-01	1970-12-31
1971	1971-01-01	1971-12-31
1972	1972-01-01	1972-12-31
1973	1973-01-01	1973-12-31
1974	1974-01-01	1974-12-31
1977	1977-01-01	1977-11-30
1978	1978-01-01	1978-11-30
1979	1979-01-01	1979-12-28
1980	1980-02-01	1980-12-10
1981	1981-01-07	1981-12-31
1983	1983-01-01	1983-12-30
1984	1984-01-02	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
1991	1991-01-01	1991-12-31
1992	1992-01-01	1992-12-31
1993	1993-01-01	1993-12-31
1994	1994-01-01	1994-12-31
1995	1995-01-01	1995-12-31
1996	1996-01-01	1996-12-31
1998	1998-01-03	1998-12-31
1999	1999-01-01	1999-12-31
2000	2000-01-01	2000-12-31
2001	2001-01-01	2001-12-31
2002	2002-01-01	2002-12-30
2003	2003-01-01	2003-12-30
2004	2004-01-01	2004-12-31
2005	2005-01-01	2005-12-31
2006	2006-01-01	2006-12-31
2007	2007-01-01	2007-12-31
2008	2008-01-06	2008-12-30
2009	2009-01-01	2009-12-31
2010	2010-01-01	2010-12-31
2011	2011-01-01	2011-12-31

Every Fixed Threshold

Fixed thresholds at Nilchi
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	43	366	1996	334
35 C (95 F): Days	43	355	1991	149
40 C (104 F): Days	41	246	1987	25
45 C (113 F): Days	3	21	1987	3
90 F (32.2 C): Days	43	365	1991	263
100 F (37.8 C): Days	43	295	1987	81
110 F (43.3 C): Days	8	57	1987	1
20 C (68 F): Tropical nights (min	40	253	1972	192
25 C (77 F): Days with min	16	13	1972	3
10 mm (0.39 in): Days with 10 mm or more rain	44	45	1990	30
25 mm (0.98 in): Days with 25 mm or more rain	44	23	1980	17
50 mm (1.97 in): Days with 50 mm or more rain	39	12	1988	3
100 mm (3.94 in): Days with 100 mm or more rain	10	3	1995	2
200 mm (7.87 in): Days with 200 mm or more rain	3	1	1988	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 Nilchi 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).

Nilchi Threshold Days by Year (MXN00004023)

Key Facts for Nilchi Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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