Nezahualcoyotl Weather Records (MXN00015061)

Record envelope, standing records and threshold days for Nezahualcoyotl (MXN00015061), Mexico, with 46 years of record.

Key Facts for Nezahualcoyotl

Nezahualcoyotl (MXN00015061) is a weather station in Mexico at 19.40 latitude and -99.03 longitude, 2,278 m (7,473 ft) above sea level.
The station reports from 1967 to 2012, 46 years of record.
1,464 records set at Nezahualcoyotl still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Nezahualcoyotl set a daily record precipitation of 33.8 mm (1.3 in) on 27 September 2012.

About the Station

Location: Mexico, 19.40 latitude, -99.03 longitude.
Elevation: 2,278 m (7,473 ft).
Period of record: 1967 to 2012, 46 years.
Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Nezahualcoyotl. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Nezahualcoyotl, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	32.8 C (91.0 F)	-4.4 C (24.1 F)	n/a	n/a
Feb	31.1 C (88.0 F)	2.8 C (37.0 F)	n/a	n/a
Mar	33.9 C (93.0 F)	4.4 C (39.9 F)	n/a	n/a
Apr	33.3 C (91.9 F)	5.6 C (42.1 F)	n/a	n/a
May	34.4 C (93.9 F)	6.7 C (44.1 F)	n/a	n/a
Jun	32.8 C (91.0 F)	0.0 C (32.0 F)	n/a	n/a
Jul	29.4 C (84.9 F)	7.8 C (46.0 F)	n/a	n/a
Aug	31.7 C (89.1 F)	0.6 C (33.1 F)	n/a	n/a
Sep	31.1 C (88.0 F)	5.0 C (41.0 F)	n/a	n/a
Oct	32.8 C (91.0 F)	2.8 C (37.0 F)	n/a	n/a
Nov	32.2 C (90.0 F)	0.0 C (32.0 F)	n/a	n/a
Dec	32.2 C (90.0 F)	-1.1 C (30.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Nezahualcoyotl still stand. 2010 holds the most, with 377.

All-Time Record Progression

1 new records

1 all-time records were set at Nezahualcoyotl between 19 August 2012 and 19 August 2012. Each dot is a new record.

Wettest Day of Each Month

Aug: 91.9 mm (3.6 in)

The wettest day on record for each calendar month at Nezahualcoyotl. The most was 91.9 mm (3.6 in) on 19 August 2012.

Record daily precipitation for each month at Nezahualcoyotl
Month	Record daily precipitation (mm)	Date
Jan	23.9 mm (0.9 in)	21 January 1975
Feb	38.1 mm (1.5 in)	3 February 2010
Mar	37.8 mm (1.5 in)	24 March 2006
Apr	30.0 mm (1.2 in)	30 April 2006
May	50.5 mm (2.0 in)	23 May 1972
Jun	88.6 mm (3.5 in)	16 June 2004
Jul	87.6 mm (3.4 in)	12 July 2006
Aug	91.9 mm (3.6 in)	19 August 2012
Sep	79.8 mm (3.1 in)	17 September 2012
Oct	56.1 mm (2.2 in)	4 October 2008
Nov	83.1 mm (3.3 in)	13 November 2006
Dec	19.6 mm (0.8 in)	1 December 1976

Period of Record Coverage

1998 to 2012

7 years of record at Nezahualcoyotl, 1998 to 2012. 4 years have data for under 90 percent of days and are left out of rankings: 1998, 2007, 2008, 2009.

Latest Records

Latest records at Nezahualcoyotl
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 September 2012	Nezahualcoyotl, MX	daily rain	33.8 mm (1.3 in)	9.2 mm (0.36 in)	45 years	26 of 100 (Routine)
22 September 2012	Nezahualcoyotl, MX	daily rain	22.9 mm (0.9 in)	6.1 mm (0.24 in)	25 years	17 of 100 (Routine)
17 September 2012	Nezahualcoyotl, MX	monthly rain	79.8 mm (3.1 in)	16.0 mm (0.6 in)	24 years	37 of 100 (Notable)
8 September 2012	Nezahualcoyotl, MX	daily rain	47.0 mm (1.9 in)	2.0 mm (0.08 in)	6 years	7 of 100 (Routine)
19 August 2012	Nezahualcoyotl, MX	all-time rain	91.9 mm (3.6 in)	3.3 mm (0.13 in)	8 years	29 of 100 (Routine)
17 August 2012	Nezahualcoyotl, MX	daily rain	34.8 mm (1.4 in)	6.9 mm (0.27 in)	2 years	11 of 100 (Routine)
11 August 2012	Nezahualcoyotl, MX	daily rain	49.8 mm (2.0 in)	28.5 mm (1.1 in)	12 years	38 of 100 (Notable)
10 August 2012	Nezahualcoyotl, MX	daily rain	39.9 mm (1.6 in)	17.0 mm (0.7 in)	33 years	31 of 100 (Routine)
3 August 2012	Nezahualcoyotl, MX	daily rain	45.0 mm (1.8 in)	15.0 mm (0.6 in)	37 years	31 of 100 (Routine)
29 July 2012	Nezahualcoyotl, MX	daily rain	36.8 mm (1.4 in)	14.4 mm (0.6 in)	16 years	22 of 100 (Routine)
28 July 2012	Nezahualcoyotl, MX	daily rain	42.9 mm (1.7 in)	12.9 mm (0.5 in)	7 years	18 of 100 (Routine)
17 July 2012	Nezahualcoyotl, MX	daily rain	59.9 mm (2.4 in)	25.1 mm (1.0 in)	4 years	30 of 100 (Routine)
16 July 2012	Nezahualcoyotl, MX	daily rain	22.4 mm (0.9 in)	1.6 mm (0.06 in)	4 years	6 of 100 (Routine)
6 July 2012	Nezahualcoyotl, MX	daily rain	35.8 mm (1.4 in)	14.0 mm (0.6 in)	39 years	29 of 100 (Routine)
22 June 2012	Nezahualcoyotl, MX	daily rain (Tie)	15.0 mm (0.6 in)	tie	35 years	3 of 100 (Routine)
16 May 2012	Nezahualcoyotl, MX	daily rain	19.8 mm (0.8 in)	9.6 mm (0.38 in)	42 years	20 of 100 (Routine)
11 April 2012	Nezahualcoyotl, MX	daily rain	20.8 mm (0.8 in)	18.0 mm (0.7 in)	10 years	20 of 100 (Routine)
17 March 2012	Nezahualcoyotl, MX	daily rain	19.8 mm (0.8 in)	12.9 mm (0.5 in)	34 years	20 of 100 (Routine)
9 February 2012	Nezahualcoyotl, MX	daily rain	5.6 mm (0.22 in)	0.8 mm (0.03 in)	28 years	13 of 100 (Routine)
7 February 2012	Nezahualcoyotl, MX	daily rain	5.8 mm (0.23 in)	3.0 mm (0.12 in)	34 years	18 of 100 (Routine)

Extremes by Year

1967 to 2012

Yearly extremes at Nezahualcoyotl: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	34.4 C (93.9 F)	2010	32.2 C (90.0 F)	7
Coldest night (TNn)	-4.4 C (24.1 F)	1998	0.0 C (32.0 F)	7
Wettest day (Rx1day)	91.9 mm (3.6 in)	2012	39.9 mm (1.6 in)	39
Wettest five days (Rx5day)	179.3 mm (7.1 in)	2008	89.7 mm (3.5 in)	39
Longest dry spell (CDD)	128 days	1999	55 days	39

Hottest day (TXx)

The hottest day of the year at Nezahualcoyotl, 1967 to 2012. The record is 34.4 C (93.9 F) in 2010, marked on the chart; the median year is 32.2 C (90.0 F).

Hottest day (TXx) at Nezahualcoyotl by year
Year	Hottest day (TXx)
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1996	n/a
1997	n/a
1998	12.8 C (55.0 F)
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	28.3 C (82.9 F)
2008	32.2 C (90.0 F)
2009	33.3 C (91.9 F)
2010	34.4 C (93.9 F)
2011	33.9 C (93.0 F)
2012	31.7 C (89.1 F)

Coldest night (TNn)

The coldest night of the year at Nezahualcoyotl, 1967 to 2012. The record is -4.4 C (24.1 F) in 1998, marked on the chart; the median year is 0.0 C (32.0 F).

Coldest night (TNn) at Nezahualcoyotl by year
Year	Coldest night (TNn)
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1996	n/a
1997	n/a
1998	-4.4 C (24.1 F)
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	5.0 C (41.0 F)
2008	0.0 C (32.0 F)
2009	2.8 C (37.0 F)
2010	-1.1 C (30.0 F)
2011	0.0 C (32.0 F)
2012	3.9 C (39.0 F)

Wettest day (Rx1day)

The wettest day of the year at Nezahualcoyotl, 1967 to 2012. The record is 91.9 mm (3.6 in) in 2012, marked on the chart; the median year is 39.9 mm (1.6 in).

Wettest day (Rx1day) at Nezahualcoyotl by year
Year	Wettest day (Rx1day)
1967	25.9 mm (1.0 in)
1968	32.3 mm (1.3 in)
1969	30.0 mm (1.2 in)
1970	49.8 mm (2.0 in)
1971	58.9 mm (2.3 in)
1972	50.5 mm (2.0 in)
1973	34.8 mm (1.4 in)
1974	39.6 mm (1.6 in)
1975	30.0 mm (1.2 in)
1976	49.5 mm (1.9 in)
1977	40.6 mm (1.6 in)
1978	33.8 mm (1.3 in)
1979	38.9 mm (1.5 in)
1980	39.9 mm (1.6 in)
1981	49.8 mm (2.0 in)
1982	48.8 mm (1.9 in)
1983	17.5 mm (0.7 in)
1984	27.2 mm (1.1 in)
1985	38.1 mm (1.5 in)
1986	50.0 mm (2.0 in)
1987	41.1 mm (1.6 in)
1988	63.8 mm (2.5 in)
1996	29.5 mm (1.2 in)
1997	35.8 mm (1.4 in)
1998	31.8 mm (1.3 in)
1999	36.8 mm (1.4 in)
2000	35.8 mm (1.4 in)
2001	43.9 mm (1.7 in)
2002	33.8 mm (1.3 in)
2003	55.9 mm (2.2 in)
2004	88.6 mm (3.5 in)
2005	59.9 mm (2.4 in)
2006	87.6 mm (3.4 in)
2007	59.9 mm (2.4 in)
2008	56.1 mm (2.2 in)
2009	59.4 mm (2.3 in)
2010	38.1 mm (1.5 in)
2011	39.9 mm (1.6 in)
2012	91.9 mm (3.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Nezahualcoyotl, 1967 to 2012. The record is 179.3 mm (7.1 in) in 2008, marked on the chart; the median year is 89.7 mm (3.5 in).

Wettest five days (Rx5day) at Nezahualcoyotl by year
Year	Wettest five days (Rx5day)
1967	62.1 mm (2.4 in)
1968	88.8 mm (3.5 in)
1969	64.8 mm (2.6 in)
1970	70.2 mm (2.8 in)
1971	83.5 mm (3.3 in)
1972	99.6 mm (3.9 in)
1973	70.3 mm (2.8 in)
1974	82.8 mm (3.3 in)
1975	55.3 mm (2.2 in)
1976	60.4 mm (2.4 in)
1977	93.4 mm (3.7 in)
1978	78.8 mm (3.1 in)
1979	93.3 mm (3.7 in)
1980	55.9 mm (2.2 in)
1981	70.9 mm (2.8 in)
1982	66.3 mm (2.6 in)
1983	47.1 mm (1.9 in)
1984	77.6 mm (3.1 in)
1985	92.0 mm (3.6 in)
1986	76.4 mm (3.0 in)
1987	95.3 mm (3.8 in)
1988	142.2 mm (5.6 in)
1996	66.6 mm (2.6 in)
1997	54.1 mm (2.1 in)
1998	98.3 mm (3.9 in)
1999	131.5 mm (5.2 in)
2000	89.1 mm (3.5 in)
2001	122.4 mm (4.8 in)
2002	119.9 mm (4.7 in)
2003	93.0 mm (3.7 in)
2004	160.5 mm (6.3 in)
2005	124.4 mm (4.9 in)
2006	151.2 mm (6.0 in)
2007	135.0 mm (5.3 in)
2008	179.3 mm (7.1 in)
2009	109.9 mm (4.3 in)
2010	135.6 mm (5.3 in)
2011	89.7 mm (3.5 in)
2012	156.4 mm (6.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Nezahualcoyotl, 1967 to 2012. The record is 128 days in 1999, marked on the chart; the median year is 55 days.

Longest dry spell (CDD) at Nezahualcoyotl by year
Year	Longest dry spell (CDD)
1967	31 days
1968	45 days
1969	62 days
1970	92 days
1971	76 days
1972	48 days
1973	104 days
1974	64 days
1975	63 days
1976	55 days
1977	63 days
1978	43 days
1979	41 days
1980	36 days
1981	55 days
1982	77 days
1983	55 days
1984	82 days
1985	42 days
1986	62 days
1987	49 days
1988	42 days
1996	49 days
1997	77 days
1998	73 days
1999	128 days
2000	26 days
2001	102 days
2002	30 days
2003	92 days
2004	32 days
2005	49 days
2006	52 days
2007	40 days
2008	75 days
2009	53 days
2010	57 days
2011	63 days
2012	56 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

33 years, 1968 to 2012

A day with at least 43.5 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 108.0 mm (4.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Nezahualcoyotl: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	43.5 mm (1.7 in)
5 years	58.6 mm (2.3 in)
10 years	69.4 mm (2.7 in)
25 years	84.0 mm (3.3 in)
50 years	95.7 mm (3.8 in)	Longer than the 33 years of record
100 years	108.0 mm (4.3 in)	Longer than the 33 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 33 years of values from 1968 to 2012.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 91.9 mm (3.6 in) in 2012; 88.6 mm (3.5 in) in 2004; 87.6 mm (3.4 in) in 2006.

Download the Data

Data for Nezahualcoyotl standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Nezahualcoyotl 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). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Year	Days with data	Share of year	Complete
1998	17	5%	No
2007	31	8%	No
2008	198	54%	No
2009	303	83%	No
2010	359	98%	Yes
2011	360	99%	Yes
2012	363	99%	Yes