Nexpa Weather Records (MXN00017038)

Record envelope, standing records and threshold days for Nexpa (MXN00017038), Mexico, with 37 years of record.

Key Facts for Nexpa

Nexpa (MXN00017038) is a weather station in Mexico at 18.52 latitude and -99.13 longitude, 800 m (2,624 ft) above sea level.
The station reports from 1976 to 2012, 37 years of record.
1,464 records set at Nexpa still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Nexpa set a daily record low minimum temperature of 11.7 C (53.1 F) on 31 July 2012.

About the Station

Location: Mexico, 18.52 latitude, -99.13 longitude.
Elevation: 800 m (2,624 ft).
Period of record: 1976 to 2012, 37 years.
Eligible elements: tmax, tmin, 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 Nexpa. 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 Nexpa, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	36.7 C (98.1 F)	1.7 C (35.1 F)	n/a	n/a
Feb	40.0 C (104.0 F)	3.9 C (39.0 F)	n/a	n/a
Mar	48.9 C (120.0 F)	2.8 C (37.0 F)	n/a	n/a
Apr	45.0 C (113.0 F)	8.9 C (48.0 F)	n/a	n/a
May	45.0 C (113.0 F)	10.0 C (50.0 F)	n/a	n/a
Jun	46.7 C (116.1 F)	12.8 C (55.0 F)	n/a	n/a
Jul	41.7 C (107.1 F)	6.7 C (44.1 F)	n/a	n/a
Aug	40.0 C (104.0 F)	10.6 C (51.1 F)	n/a	n/a
Sep	41.7 C (107.1 F)	10.0 C (50.0 F)	n/a	n/a
Oct	38.9 C (102.0 F)	5.0 C (41.0 F)	n/a	n/a
Nov	38.9 C (102.0 F)	1.7 C (35.1 F)	n/a	n/a
Dec	37.8 C (100.0 F)	-1.1 C (30.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Nexpa still stand. 1998 holds the most, with 94.

Standing records at Nexpa by the year they were set
Year set	Standing records
1976	39
1977	19
1978	29
1979	40
1980	45
1981	21
1982	24
1983	17
1984	47
1985	28
1986	64
1987	80
1988	24
1989	30
1990	58
1991	31
1992	60
1993	91
1994	69
1995	37
1996	46
1998	94
1999	12
2000	9
2001	32
2002	13
2003	60
2004	75
2005	34
2006	6
2007	19
2008	63
2009	30
2010	54
2011	49
2012	15

All-Time Record Progression

3 new records

3 all-time records were set at Nexpa between 6 July 2008 and 11 December 2010. Each dot is a new record.

When Nexpa set new all-time records
Date	Kind	Detail
2008-07-06	Record daily precipitation	Record daily precipitation 97.8 mm (3.9 in)
2010-12-10	Record low minimum temperature	Record low minimum temperature 0.0 C (32.0 F)
2010-12-11	Record low minimum temperature	Record low minimum temperature -1.1 C (30.0 F)

Wettest Day of Each Month

Jul: 97.8 mm (3.9 in)

The wettest day on record for each calendar month at Nexpa. The most was 97.8 mm (3.9 in) on 6 July 2008.

Record daily precipitation for each month at Nexpa
Month	Record daily precipitation (mm)	Date
Jan	28.4 mm (1.1 in)	25 January 1980
Feb	37.6 mm (1.5 in)	4 February 2010
Mar	35.6 mm (1.4 in)	2 March 2001
Apr	34.8 mm (1.4 in)	30 April 2008
May	76.2 mm (3.0 in)	28 May 2002
Jun	87.4 mm (3.4 in)	8 June 2001
Jul	97.8 mm (3.9 in)	6 July 2008
Aug	68.3 mm (2.7 in)	8 August 1989
Sep	79.8 mm (3.1 in)	17 September 2010
Oct	47.2 mm (1.9 in)	1 October 1999
Nov	19.8 mm (0.8 in)	3 November 2002
Dec	22.4 mm (0.9 in)	26 December 1995

Period of Record Coverage

1976 to 2012

37 years of record at Nexpa, 1976 to 2012. 5 years have data for under 90 percent of days and are left out of rankings: 1976, 1980, 1982, 1989, 2012.

Days with data per year at Nexpa
Year	Days with data	Share of year	Complete
1976	237	65%	No
1977	364	100%	Yes
1978	363	99%	Yes
1979	364	100%	Yes
1980	274	75%	No
1981	365	100%	Yes
1982	274	75%	No
1983	364	100%	Yes
1984	365	100%	Yes
1985	363	99%	Yes
1986	362	99%	Yes
1987	361	99%	Yes
1988	361	99%	Yes
1989	328	90%	No
1990	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	365	100%	Yes
1996	366	100%	Yes
1997	365	100%	Yes
1998	329	90%	Yes
1999	334	92%	Yes
2000	366	100%	Yes
2001	365	100%	Yes
2002	365	100%	Yes
2003	362	99%	Yes
2004	365	100%	Yes
2005	365	100%	Yes
2006	365	100%	Yes
2007	365	100%	Yes
2008	366	100%	Yes
2009	365	100%	Yes
2010	365	100%	Yes
2011	365	100%	Yes
2012	213	58%	No

Latest Records

Latest records at Nexpa
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 July 2012	Nexpa, MX	daily low min	11.7 C (53.1 F)	1.1 C (2.0 F)	28 years	15 of 100 (Routine)
30 July 2012	Nexpa, MX	daily low min (Tie)	13.9 C (57.0 F)	tie	28 years	2 of 100 (Routine)
17 July 2012	Nexpa, MX	daily low min (Tie)	15.0 C (59.0 F)	tie	28 years	2 of 100 (Routine)
16 July 2012	Nexpa, MX	daily rain	47.0 mm (1.9 in)	14.2 mm (0.6 in)	5 years	16 of 100 (Routine)
12 July 2012	Nexpa, MX	daily low max (Tie)	25.0 C (77.0 F)	tie	27 years	2 of 100 (Routine)
10 July 2012	Nexpa, MX	daily low min (Tie)	12.8 C (55.0 F)	tie	28 years	2 of 100 (Routine)
30 June 2012	Nexpa, MX	daily low min (Tie)	15.6 C (60.1 F)	tie	4 years	1 of 100 (Routine)
22 June 2012	Nexpa, MX	daily low min	15.6 C (60.1 F)	1.1 C (2.0 F)	32 years	16 of 100 (Routine)
20 June 2012	Nexpa, MX	daily low min (Tie)	15.6 C (60.1 F)	tie	23 years	2 of 100 (Routine)
18 June 2012	Nexpa, MX	daily low min (Tie)	15.6 C (60.1 F)	tie	4 years	1 of 100 (Routine)
14 June 2012	Nexpa, MX	daily low min	15.0 C (59.0 F)	0.6 C (1.1 F)	17 years	10 of 100 (Routine)
5 June 2012	Nexpa, MX	daily low min (Tie)	15.0 C (59.0 F)	tie	4 years	1 of 100 (Routine)
22 May 2012	Nexpa, MX	daily low min (Tie)	15.0 C (59.0 F)	tie	24 years	2 of 100 (Routine)
21 May 2012	Nexpa, MX	daily low min (Tie)	15.0 C (59.0 F)	tie	4 years	1 of 100 (Routine)
17 May 2012	Nexpa, MX	daily low max	28.9 C (84.0 F)	3.9 C (7.0 F)	19 years	21 of 100 (Routine)
14 May 2012	Nexpa, MX	daily low max	31.7 C (89.1 F)	1.1 C (2.0 F)	20 years	12 of 100 (Routine)
27 April 2012	Nexpa, MX	daily low min	10.6 C (51.1 F)	2.2 C (4.0 F)	2 years	9 of 100 (Routine)
26 April 2012	Nexpa, MX	daily low min	10.6 C (51.1 F)	1.1 C (2.0 F)	28 years	14 of 100 (Routine)
25 April 2012	Nexpa, MX	daily low min	10.6 C (51.1 F)	3.3 C (5.9 F)	9 years	15 of 100 (Routine)
24 April 2012	Nexpa, MX	daily low min	11.7 C (53.1 F)	1.1 C (2.0 F)	2 years	6 of 100 (Routine)

Climate Trend

30 complete years, 1977 to 2011

One stripe for each of 30 complete years at Nexpa, 1977 to 2011. Blue stripes are years cooler than the station's own mean of 24.4 C (75.9 F); red stripes are warmer. The coolest year was 2010, at 21.6 C (70.9 F), and the warmest was 1993, at 26.9 C (80.4 F). The strongest colour marks a difference of 2.8 C (5.0 F).

Annual mean temperature at Nexpa as warming stripes, 1977 to 2011
Year	Annual mean temperature	Difference from the station mean
1977	25.0 C	+0.63 C
1978	25.4 C	+1.01 C
1979	25.5 C	+1.11 C
1981	25.0 C	+0.63 C
1983	25.2 C	+0.77 C
1984	24.4 C	+0.02 C
1985	24.7 C	+0.28 C
1986	26.1 C	+1.65 C
1987	26.3 C	+1.90 C
1988	25.1 C	+0.66 C
1990	26.0 C	+1.64 C
1991	26.2 C	+1.82 C
1992	26.2 C	+1.83 C
1993	26.9 C	+2.49 C
1994	26.6 C	+2.22 C
1995	24.9 C	+0.47 C
1996	24.0 C	-0.40 C
1997	24.5 C	+0.09 C
2000	24.4 C	-0.01 C
2001	24.4 C	+0.03 C
2002	25.0 C	+0.58 C
2003	21.6 C	-2.76 C
2004	23.1 C	-1.31 C
2005	23.2 C	-1.19 C
2006	22.4 C	-1.99 C
2007	22.5 C	-1.90 C
2008	21.8 C	-2.64 C
2009	22.3 C	-2.10 C
2010	21.6 C	-2.78 C
2011	21.7 C	-2.66 C

The annual mean temperature here has fallen by 1.2 C (0.8 to 1.6) per decade over 1977 to 2011. In Fahrenheit: 2.1 F (1.4 to 2.8) per decade. The slope is a straight line fitted to 30 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Nexpa
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-1.2 C (-1.6 to -0.8) per decade	-2.1 F (-2.8 to -1.4) per decade	1977 to 2011	30	Fall
Mean daily maximum	-1.0 C (-1.4 to -0.6) per decade	-1.8 F (-2.4 to -1.1) per decade	1977 to 2011	30	Fall
Mean daily minimum	-1.3 C (-2.1 to -0.6) per decade	-2.4 F (-3.8 to -1.0) per decade	1977 to 2011	30	Fall

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1976 to 2012

Yearly extremes at Nexpa: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	48.9 C (120.0 F)	1978	41.7 C (107.1 F)	37
Coldest night (TNn)	-1.1 C (30.0 F)	2010	5.6 C (42.1 F)	37
Wettest day (Rx1day)	97.8 mm (3.9 in)	2008	48.5 mm (1.9 in)	37
Wettest five days (Rx5day)	166.2 mm (6.5 in)	2001	106.5 mm (4.2 in)	37
Longest dry spell (CDD)	154 days	1998	87 days	37

Hottest day (TXx)

The hottest day of the year at Nexpa, 1976 to 2012. The record is 48.9 C (120.0 F) in 1978, marked on the chart; the median year is 41.7 C (107.1 F).

Hottest day (TXx) at Nexpa by year
Year	Hottest day (TXx)
1976	40.6 C (105.1 F)
1977	41.7 C (107.1 F)
1978	48.9 C (120.0 F)
1979	42.8 C (109.0 F)
1980	46.7 C (116.1 F)
1981	42.8 C (109.0 F)
1982	41.7 C (107.1 F)
1983	41.7 C (107.1 F)
1984	42.8 C (109.0 F)
1985	41.7 C (107.1 F)
1986	42.8 C (109.0 F)
1987	45.0 C (113.0 F)
1988	41.7 C (107.1 F)
1989	40.6 C (105.1 F)
1990	41.7 C (107.1 F)
1991	41.7 C (107.1 F)
1992	40.0 C (104.0 F)
1993	35.6 C (96.1 F)
1994	40.6 C (105.1 F)
1995	41.7 C (107.1 F)
1996	40.6 C (105.1 F)
1997	38.9 C (102.0 F)
1998	43.9 C (111.0 F)
1999	43.9 C (111.0 F)
2000	41.7 C (107.1 F)
2001	41.7 C (107.1 F)
2002	40.0 C (104.0 F)
2003	37.8 C (100.0 F)
2004	40.0 C (104.0 F)
2005	38.9 C (102.0 F)
2006	38.9 C (102.0 F)
2007	38.9 C (102.0 F)
2008	40.0 C (104.0 F)
2009	40.0 C (104.0 F)
2010	40.0 C (104.0 F)
2011	37.8 C (100.0 F)
2012	38.9 C (102.0 F)

Coldest night (TNn)

The coldest night of the year at Nexpa, 1976 to 2012. The record is -1.1 C (30.0 F) in 2010, marked on the chart; the median year is 5.6 C (42.1 F).

Coldest night (TNn) at Nexpa by year
Year	Coldest night (TNn)
1976	2.8 C (37.0 F)
1977	5.6 C (42.1 F)
1978	7.8 C (46.0 F)
1979	6.7 C (44.1 F)
1980	5.0 C (41.0 F)
1981	5.0 C (41.0 F)
1982	3.9 C (39.0 F)
1983	5.6 C (42.1 F)
1984	5.0 C (41.0 F)
1985	6.7 C (44.1 F)
1986	1.7 C (35.1 F)
1987	2.8 C (37.0 F)
1988	3.9 C (39.0 F)
1989	6.7 C (44.1 F)
1990	7.8 C (46.0 F)
1991	8.9 C (48.0 F)
1992	13.9 C (57.0 F)
1993	17.8 C (64.0 F)
1994	10.0 C (50.0 F)
1995	8.9 C (48.0 F)
1996	5.0 C (41.0 F)
1997	6.7 C (44.1 F)
1998	5.0 C (41.0 F)
1999	5.6 C (42.1 F)
2000	5.0 C (41.0 F)
2001	10.0 C (50.0 F)
2002	11.7 C (53.1 F)
2003	5.0 C (41.0 F)
2004	8.9 C (48.0 F)
2005	5.6 C (42.1 F)
2006	3.9 C (39.0 F)
2007	5.6 C (42.1 F)
2008	2.2 C (36.0 F)
2009	1.7 C (35.1 F)
2010	-1.1 C (30.0 F)
2011	1.7 C (35.1 F)
2012	3.9 C (39.0 F)

Wettest day (Rx1day)

The wettest day of the year at Nexpa, 1976 to 2012. The record is 97.8 mm (3.9 in) in 2008, marked on the chart; the median year is 48.5 mm (1.9 in).

Wettest day (Rx1day) at Nexpa by year
Year	Wettest day (Rx1day)
1976	45.0 mm (1.8 in)
1977	47.8 mm (1.9 in)
1978	39.9 mm (1.6 in)
1979	46.0 mm (1.8 in)
1980	28.4 mm (1.1 in)
1981	56.1 mm (2.2 in)
1982	35.3 mm (1.4 in)
1983	60.5 mm (2.4 in)
1984	60.2 mm (2.4 in)
1985	53.1 mm (2.1 in)
1986	51.1 mm (2.0 in)
1987	53.8 mm (2.1 in)
1988	54.9 mm (2.2 in)
1989	68.3 mm (2.7 in)
1990	40.9 mm (1.6 in)
1991	48.5 mm (1.9 in)
1992	47.8 mm (1.9 in)
1993	56.4 mm (2.2 in)
1994	56.1 mm (2.2 in)
1995	48.5 mm (1.9 in)
1996	44.5 mm (1.8 in)
1997	26.7 mm (1.1 in)
1998	50.0 mm (2.0 in)
1999	47.2 mm (1.9 in)
2000	48.5 mm (1.9 in)
2001	87.4 mm (3.4 in)
2002	76.2 mm (3.0 in)
2003	46.2 mm (1.8 in)
2004	71.9 mm (2.8 in)
2005	45.0 mm (1.8 in)
2006	38.4 mm (1.5 in)
2007	56.4 mm (2.2 in)
2008	97.8 mm (3.9 in)
2009	36.6 mm (1.4 in)
2010	79.8 mm (3.1 in)
2011	69.9 mm (2.8 in)
2012	47.0 mm (1.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Nexpa, 1976 to 2012. The record is 166.2 mm (6.5 in) in 2001, marked on the chart; the median year is 106.5 mm (4.2 in).

Wettest five days (Rx5day) at Nexpa by year
Year	Wettest five days (Rx5day)
1976	103.2 mm (4.1 in)
1977	133.2 mm (5.2 in)
1978	101.3 mm (4.0 in)
1979	64.4 mm (2.5 in)
1980	69.8 mm (2.7 in)
1981	121.7 mm (4.8 in)
1982	81.1 mm (3.2 in)
1983	104.4 mm (4.1 in)
1984	123.6 mm (4.9 in)
1985	132.6 mm (5.2 in)
1986	58.7 mm (2.3 in)
1987	117.9 mm (4.6 in)
1988	105.0 mm (4.1 in)
1989	90.4 mm (3.6 in)
1990	76.0 mm (3.0 in)
1991	121.1 mm (4.8 in)
1992	107.2 mm (4.2 in)
1993	132.9 mm (5.2 in)
1994	87.1 mm (3.4 in)
1995	106.5 mm (4.2 in)
1996	83.7 mm (3.3 in)
1997	64.0 mm (2.5 in)
1998	94.0 mm (3.7 in)
1999	136.8 mm (5.4 in)
2000	119.6 mm (4.7 in)
2001	166.2 mm (6.5 in)
2002	147.1 mm (5.8 in)
2003	104.2 mm (4.1 in)
2004	103.2 mm (4.1 in)
2005	114.6 mm (4.5 in)
2006	78.6 mm (3.1 in)
2007	139.0 mm (5.5 in)
2008	160.5 mm (6.3 in)
2009	125.7 mm (4.9 in)
2010	126.8 mm (5.0 in)
2011	116.1 mm (4.6 in)
2012	81.5 mm (3.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Nexpa, 1976 to 2012. The record is 154 days in 1998, marked on the chart; the median year is 87 days.

Longest dry spell (CDD) at Nexpa by year
Year	Longest dry spell (CDD)
1976	44 days
1977	74 days
1978	74 days
1979	66 days
1980	66 days
1981	87 days
1982	78 days
1983	72 days
1984	112 days
1985	122 days
1986	117 days
1987	109 days
1988	82 days
1989	99 days
1990	52 days
1991	124 days
1992	99 days
1993	107 days
1994	124 days
1995	87 days
1996	126 days
1997	142 days
1998	154 days
1999	106 days
2000	69 days
2001	75 days
2002	66 days
2003	88 days
2004	57 days
2005	74 days
2006	114 days
2007	72 days
2008	102 days
2009	117 days
2010	62 days
2011	100 days
2012	43 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, 1977 to 2011

A day with at least 51.8 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 107.4 mm (4.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Nexpa: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	51.8 mm (2.0 in)
5 years	65.1 mm (2.6 in)
10 years	74.5 mm (2.9 in)
25 years	87.1 mm (3.4 in)
50 years	97.1 mm (3.8 in)	Longer than the 33 years of record
100 years	107.4 mm (4.2 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 1977 to 2011.

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: 97.8 mm (3.9 in) in 2008; 87.4 mm (3.4 in) in 2001; 79.8 mm (3.1 in) in 2010.

Download the Data

Data for Nexpa standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Nexpa 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).