Ahuatempan Weather Records (MXN00021165)

Record envelope, standing records and threshold days for Ahuatempan (MXN00021165), Mexico, with 31 years of record.

Key Facts for Ahuatempan

Ahuatempan (MXN00021165) is a weather station in Mexico at 18.40 latitude and -98.02 longitude, 1,824 m (5,984 ft) above sea level.
The station reports from 1979 to 2009, 31 years of record.
1,464 records set at Ahuatempan still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 18.40 latitude, -98.02 longitude.
Elevation: 1,824 m (5,984 ft).
Period of record: 1979 to 2009, 31 years.
Eligible elements: none yet.

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 Ahuatempan. 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 Ahuatempan, 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)	0.6 C (33.1 F)	n/a	n/a
Feb	31.7 C (89.1 F)	1.1 C (34.0 F)	n/a	n/a
Mar	35.0 C (95.0 F)	2.8 C (37.0 F)	n/a	n/a
Apr	33.9 C (93.0 F)	6.1 C (43.0 F)	n/a	n/a
May	35.0 C (95.0 F)	1.7 C (35.1 F)	n/a	n/a
Jun	31.7 C (89.1 F)	6.7 C (44.1 F)	n/a	n/a
Jul	30.0 C (86.0 F)	6.7 C (44.1 F)	n/a	n/a
Aug	30.0 C (86.0 F)	3.9 C (39.0 F)	n/a	n/a
Sep	30.6 C (87.1 F)	5.6 C (42.1 F)	n/a	n/a
Oct	30.0 C (86.0 F)	1.7 C (35.1 F)	n/a	n/a
Nov	28.9 C (84.0 F)	0.6 C (33.1 F)	n/a	n/a
Dec	30.0 C (86.0 F)	0.0 C (32.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Ahuatempan still stand. 1980 holds the most, with 121.

Standing records at Ahuatempan by the year they were set
Year set	Standing records
1979	49
1980	121
1981	108
1982	106
1983	117
1984	59
1985	42
1986	45
1987	40
1988	22
1989	76
1990	68
1991	61
1992	42
1993	36
1994	35
1995	25
1996	70
1997	114
1998	16
1999	46
2000	27
2001	24
2007	42
2008	32
2009	41

Wettest Day of Each Month

May: 100.8 mm (4.0 in)

The wettest day on record for each calendar month at Ahuatempan. The most was 100.8 mm (4.0 in) on 25 May 1980.

Record daily precipitation for each month at Ahuatempan
Month	Record daily precipitation (mm)	Date
Jan	24.9 mm (1.0 in)	26 January 1992
Feb	47.8 mm (1.9 in)	22 February 1981
Mar	24.9 mm (1.0 in)	28 March 1990
Apr	49.8 mm (2.0 in)	10 April 1980
May	100.8 mm (4.0 in)	25 May 1980
Jun	78.2 mm (3.1 in)	28 June 2009
Jul	74.9 mm (2.9 in)	24 July 1985
Aug	73.2 mm (2.9 in)	29 August 2009
Sep	85.9 mm (3.4 in)	26 September 1980
Oct	46.0 mm (1.8 in)	10 October 1982
Nov	43.9 mm (1.7 in)	2 November 1992
Dec	15.7 mm (0.6 in)	21 December 1995

Period of Record Coverage

1979 to 2009

26 years of record at Ahuatempan, 1979 to 2009. 8 years have data for under 90 percent of days and are left out of rankings: 1979, 1986, 1987, 1988, 1998, 2001, 2008, 2009.

Days with data per year at Ahuatempan
Year	Days with data	Share of year	Complete
1979	122	33%	No
1980	366	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	366	100%	Yes
1985	334	92%	Yes
1986	212	58%	No
1987	243	67%	No
1988	92	25%	No
1989	334	92%	Yes
1990	333	91%	Yes
1991	356	98%	Yes
1992	366	100%	Yes
1993	334	92%	Yes
1994	365	100%	Yes
1995	364	100%	Yes
1996	365	100%	Yes
1997	334	92%	Yes
1998	120	33%	No
1999	364	100%	Yes
2000	366	100%	Yes
2001	305	84%	No
2007	359	98%	Yes
2008	320	87%	No
2009	325	89%	No

Latest Records

No records were set at this station in the latest data.

Climate Trend

14 complete years, 1980 to 2009

One stripe for each of 14 complete years at Ahuatempan, 1980 to 2009. Blue stripes are years cooler than the station's own mean of 18.2 C (64.8 F); red stripes are warmer. The coolest year was 1999, at 17.5 C (63.5 F), and the warmest was 1995, at 19.1 C (66.4 F). The strongest colour marks a difference of 0.9 C (1.6 F).

Annual mean temperature at Ahuatempan as warming stripes, 1980 to 2009
Year	Annual mean temperature	Difference from the station mean
1980	18.0 C	-0.29 C
1981	17.9 C	-0.39 C
1982	18.5 C	+0.21 C
1983	18.8 C	+0.54 C
1984	18.3 C	+0.04 C
1991	18.8 C	+0.54 C
1992	17.9 C	-0.32 C
1994	18.3 C	+0.00 C
1995	19.1 C	+0.86 C
1996	18.0 C	-0.21 C
1999	17.5 C	-0.76 C
2000	17.7 C	-0.52 C
2007	18.4 C	+0.15 C
2009	18.4 C	+0.14 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1979 to 2009

Yearly extremes at Ahuatempan: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	35.0 C (95.0 F)	1990	31.7 C (89.1 F)	26
Coldest night (TNn)	0.0 C (32.0 F)	1989	2.8 C (37.0 F)	26
Wettest day (Rx1day)	100.8 mm (4.0 in)	1980	45.0 mm (1.8 in)	26
Wettest five days (Rx5day)	179.3 mm (7.1 in)	1989	86.3 mm (3.4 in)	26
Longest dry spell (CDD)	213 days	2001	80 days	26

Hottest day (TXx)

The hottest day of the year at Ahuatempan, 1979 to 2009. The record is 35.0 C (95.0 F) in 1990, marked on the chart; the median year is 31.7 C (89.1 F).

Hottest day (TXx) at Ahuatempan by year
Year	Hottest day (TXx)
1979	28.9 C (84.0 F)
1980	31.7 C (89.1 F)
1981	31.7 C (89.1 F)
1982	31.7 C (89.1 F)
1983	33.9 C (93.0 F)
1984	33.3 C (91.9 F)
1985	31.7 C (89.1 F)
1986	32.2 C (90.0 F)
1987	30.6 C (87.1 F)
1988	33.9 C (93.0 F)
1989	31.7 C (89.1 F)
1990	35.0 C (95.0 F)
1991	32.8 C (91.0 F)
1992	31.7 C (89.1 F)
1993	30.0 C (86.0 F)
1994	31.7 C (89.1 F)
1995	31.7 C (89.1 F)
1996	33.9 C (93.0 F)
1997	30.6 C (87.1 F)
1998	32.8 C (91.0 F)
1999	31.7 C (89.1 F)
2000	35.0 C (95.0 F)
2001	33.9 C (93.0 F)
2007	31.7 C (89.1 F)
2008	32.8 C (91.0 F)
2009	31.7 C (89.1 F)

Coldest night (TNn)

The coldest night of the year at Ahuatempan, 1979 to 2009. The record is 0.0 C (32.0 F) in 1989, marked on the chart; the median year is 2.8 C (37.0 F).

Coldest night (TNn) at Ahuatempan by year
Year	Coldest night (TNn)
1979	3.9 C (39.0 F)
1980	5.0 C (41.0 F)
1981	3.9 C (39.0 F)
1982	5.0 C (41.0 F)
1983	5.0 C (41.0 F)
1984	5.0 C (41.0 F)
1985	6.7 C (44.1 F)
1986	1.7 C (35.1 F)
1987	5.0 C (41.0 F)
1988	1.7 C (35.1 F)
1989	0.0 C (32.0 F)
1990	0.6 C (33.1 F)
1991	1.7 C (35.1 F)
1992	0.6 C (33.1 F)
1993	3.9 C (39.0 F)
1994	3.9 C (39.0 F)
1995	5.0 C (41.0 F)
1996	0.6 C (33.1 F)
1997	0.6 C (33.1 F)
1998	2.8 C (37.0 F)
1999	1.7 C (35.1 F)
2000	2.8 C (37.0 F)
2001	2.8 C (37.0 F)
2007	2.8 C (37.0 F)
2008	2.8 C (37.0 F)
2009	1.1 C (34.0 F)

Wettest day (Rx1day)

The wettest day of the year at Ahuatempan, 1979 to 2009. The record is 100.8 mm (4.0 in) in 1980, marked on the chart; the median year is 45.0 mm (1.8 in).

Wettest day (Rx1day) at Ahuatempan by year
Year	Wettest day (Rx1day)
1979	19.8 mm (0.8 in)
1980	100.8 mm (4.0 in)
1981	88.4 mm (3.5 in)
1982	46.0 mm (1.8 in)
1983	47.5 mm (1.9 in)
1984	60.2 mm (2.4 in)
1985	74.9 mm (2.9 in)
1986	40.6 mm (1.6 in)
1987	48.3 mm (1.9 in)
1988	0.0 mm (0.00 in)
1989	49.8 mm (2.0 in)
1990	74.9 mm (2.9 in)
1991	54.9 mm (2.2 in)
1992	43.9 mm (1.7 in)
1993	24.9 mm (1.0 in)
1994	34.8 mm (1.4 in)
1995	45.0 mm (1.8 in)
1996	45.0 mm (1.8 in)
1997	31.5 mm (1.2 in)
1998	0.0 mm (0.00 in)
1999	9.1 mm (0.36 in)
2000	4.8 mm (0.19 in)
2001	0.0 mm (0.00 in)
2007	33.3 mm (1.3 in)
2008	49.3 mm (1.9 in)
2009	78.2 mm (3.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ahuatempan, 1979 to 2009. The record is 179.3 mm (7.1 in) in 1989, marked on the chart; the median year is 86.3 mm (3.4 in).

Wettest five days (Rx5day) at Ahuatempan by year
Year	Wettest five days (Rx5day)
1979	48.4 mm (1.9 in)
1980	160.4 mm (6.3 in)
1981	154.0 mm (6.1 in)
1982	77.7 mm (3.1 in)
1983	92.8 mm (3.7 in)
1984	77.5 mm (3.1 in)
1985	96.3 mm (3.8 in)
1986	55.1 mm (2.2 in)
1987	117.4 mm (4.6 in)
1988	0.0 mm (0.00 in)
1989	179.3 mm (7.1 in)
1990	147.6 mm (5.8 in)
1991	161.6 mm (6.4 in)
1992	81.8 mm (3.2 in)
1993	86.6 mm (3.4 in)
1994	125.2 mm (4.9 in)
1995	106.7 mm (4.2 in)
1996	122.7 mm (4.8 in)
1997	69.6 mm (2.7 in)
1998	0.0 mm (0.00 in)
1999	13.8 mm (0.5 in)
2000	8.6 mm (0.34 in)
2001	2.8 mm (0.11 in)
2007	61.0 mm (2.4 in)
2008	85.9 mm (3.4 in)
2009	149.9 mm (5.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ahuatempan, 1979 to 2009. The record is 213 days in 2001, marked on the chart; the median year is 80 days.

Longest dry spell (CDD) at Ahuatempan by year
Year	Longest dry spell (CDD)
1979	34 days
1980	70 days
1981	61 days
1982	81 days
1983	83 days
1984	114 days
1985	122 days
1986	106 days
1987	65 days
1988	61 days
1989	75 days
1990	37 days
1991	107 days
1992	79 days
1993	112 days
1994	138 days
1995	142 days
1996	65 days
1997	77 days
1998	120 days
1999	61 days
2000	173 days
2001	213 days
2007	50 days
2008	100 days
2009	62 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.

Download the Data

Data for Ahuatempan standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ahuatempan 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 2026-10-14 (14 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).