Presa Achimec Weather Records (MXN00014037)

Record envelope, standing records and threshold days for Presa Achimec (MXN00014037), Mexico, with 43 years of record.

Key Facts for Presa Achimec

Presa Achimec (MXN00014037) is a weather station in Mexico at 22.32 latitude and -103.22 longitude, 1,825 m (5,987 ft) above sea level.
The station reports from 1969 to 2011, 43 years of record.
1,464 records set at Presa Achimec still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Presa Achimec set a daily record high minimum temperature of 17.8 C (64.0 F) on 29 June 2011.

About the Station

Location: Mexico, 22.32 latitude, -103.22 longitude.
Elevation: 1,825 m (5,987 ft).
Period of record: 1969 to 2011, 43 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 Presa Achimec. 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 Presa Achimec, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	30.0 C (86.0 F)	-7.8 C (18.0 F)	n/a	n/a
Feb	33.9 C (93.0 F)	-5.0 C (23.0 F)	n/a	n/a
Mar	35.0 C (95.0 F)	-3.9 C (25.0 F)	n/a	n/a
Apr	36.7 C (98.1 F)	0.0 C (32.0 F)	n/a	n/a
May	38.3 C (100.9 F)	2.8 C (37.0 F)	n/a	n/a
Jun	37.8 C (100.0 F)	6.7 C (44.1 F)	n/a	n/a
Jul	35.6 C (96.1 F)	7.2 C (45.0 F)	n/a	n/a
Aug	33.9 C (93.0 F)	7.8 C (46.0 F)	n/a	n/a
Sep	32.8 C (91.0 F)	3.9 C (39.0 F)	n/a	n/a
Oct	35.0 C (95.0 F)	-1.7 C (28.9 F)	n/a	n/a
Nov	31.7 C (89.1 F)	-5.0 C (23.0 F)	n/a	n/a
Dec	34.4 C (93.9 F)	-6.7 C (19.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Presa Achimec still stand. 2010 holds the most, with 67.

Standing records at Presa Achimec by the year they were set
Year set	Standing records
1969	43
1970	28
1971	38
1972	47
1973	51
1974	40
1975	16
1976	57
1977	34
1978	39
1979	46
1980	24
1981	19
1982	26
1983	34
1984	29
1985	37
1986	20
1987	39
1988	39
1989	36
1990	23
1991	35
1992	58
1993	28
1994	31
1995	38
1996	33
1997	47
1998	58
1999	34
2000	33
2001	40
2002	32
2003	13
2006	27
2007	26
2009	55
2010	67
2011	44

All-Time Record Progression

5 new records

5 all-time records were set at Presa Achimec between 18 January 2006 and 21 June 2011. Each dot is a new record.

When Presa Achimec set new all-time records
Date	Kind	Detail
2006-01-18	Record low minimum temperature	Record low minimum temperature -7.8 C (18.0 F)
2009-11-30	Record daily precipitation	Record daily precipitation 68.1 mm (2.7 in)
2010-02-02	Record daily precipitation	Record daily precipitation 69.1 mm (2.7 in)
2010-05-07	Record high maximum temperature	Record high maximum temperature 38.3 C (100.9 F)
2011-06-21	Record high minimum temperature	Record high minimum temperature 19.4 C (66.9 F)

Wettest Day of Each Month

Feb: 69.1 mm (2.7 in)

The wettest day on record for each calendar month at Presa Achimec. The most was 69.1 mm (2.7 in) on 2 February 2010.

Record daily precipitation for each month at Presa Achimec
Month	Record daily precipitation (mm)	Date
Jan	55.4 mm (2.2 in)	12 January 1987
Feb	69.1 mm (2.7 in)	2 February 2010
Mar	9.7 mm (0.38 in)	7 March 1988
Apr	19.1 mm (0.8 in)	13 April 1997
May	59.9 mm (2.4 in)	27 May 1971
Jun	63.0 mm (2.5 in)	23 June 1970
Jul	64.8 mm (2.6 in)	11 July 1991
Aug	57.2 mm (2.3 in)	13 August 1990
Sep	53.8 mm (2.1 in)	14 September 1971
Oct	55.9 mm (2.2 in)	9 October 1971
Nov	68.1 mm (2.7 in)	30 November 2009
Dec	34.8 mm (1.4 in)	2 December 1979

Period of Record Coverage

1969 to 2011

40 years of record at Presa Achimec, 1969 to 2011. 8 years have data for under 90 percent of days and are left out of rankings: 1969, 1970, 1980, 1981, 1982, 1986, 2003, 2011.

Days with data per year at Presa Achimec
Year	Days with data	Share of year	Complete
1969	268	73%	No
1970	299	82%	No
1971	362	99%	Yes
1972	363	99%	Yes
1973	361	99%	Yes
1974	364	100%	Yes
1975	361	99%	Yes
1976	363	99%	Yes
1977	361	99%	Yes
1978	361	99%	Yes
1979	362	99%	Yes
1980	241	66%	No
1981	239	65%	No
1982	271	74%	No
1983	345	95%	Yes
1984	357	98%	Yes
1985	363	99%	Yes
1986	257	70%	No
1987	346	95%	Yes
1988	351	96%	Yes
1989	365	100%	Yes
1990	362	99%	Yes
1991	347	95%	Yes
1992	352	96%	Yes
1993	351	96%	Yes
1994	356	98%	Yes
1995	365	100%	Yes
1996	365	100%	Yes
1997	364	100%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	366	100%	Yes
2001	365	100%	Yes
2002	365	100%	Yes
2003	90	25%	No
2006	363	99%	Yes
2007	364	100%	Yes
2009	364	100%	Yes
2010	335	92%	Yes
2011	181	50%	No

Latest Records

Latest records at Presa Achimec
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 June 2011	Presa Achimec, MX	daily high min	17.8 C (64.0 F)	0.6 C (1.1 F)	0 years	7 of 100 (Routine)
27 June 2011	Presa Achimec, MX	daily high min	18.9 C (66.0 F)	2.2 C (4.0 F)	32 years	25 of 100 (Routine)
22 June 2011	Presa Achimec, MX	daily rain	23.4 mm (0.9 in)	1.0 mm (0.04 in)	24 years	12 of 100 (Routine)
21 June 2011	Presa Achimec, MX	all-time high min	19.4 C (66.9 F)	0.5 C (0.9 F)	39 years	37 of 100 (Notable)
20 June 2011	Presa Achimec, MX	daily high max (Tie)	35.0 C (95.0 F)	tie	41 years	4 of 100 (Routine)
19 June 2011	Presa Achimec, MX	daily high max (Tie)	35.0 C (95.0 F)	tie	41 years	4 of 100 (Routine)
15 June 2011	Presa Achimec, MX	daily high max	36.1 C (97.0 F)	1.1 C (2.0 F)	18 years	12 of 100 (Routine)
13 June 2011	Presa Achimec, MX	daily high max (Tie)	35.0 C (95.0 F)	tie	12 years	1 of 100 (Routine)
12 June 2011	Presa Achimec, MX	daily high max (Tie)	35.0 C (95.0 F)	tie	21 years	2 of 100 (Routine)
31 May 2011	Presa Achimec, MX	daily high min	16.7 C (62.1 F)	0.6 C (1.1 F)	30 years	15 of 100 (Routine)
30 May 2011	Presa Achimec, MX	all-time high max (Tie)	38.3 C (100.9 F)	tie	1 year	6 of 100 (Routine)
29 May 2011	Presa Achimec, MX	daily high min	17.8 C (64.0 F)	1.1 C (2.0 F)	36 years	18 of 100 (Routine)
29 May 2011	Presa Achimec, MX	all-time high max (Tie)	38.3 C (100.9 F)	tie	1 year	6 of 100 (Routine)
28 May 2011	Presa Achimec, MX	daily high max	37.2 C (99.0 F)	0.5 C (0.9 F)	20 years	12 of 100 (Routine)
27 May 2011	Presa Achimec, MX	all-time high max (Tie)	38.3 C (100.9 F)	tie	1 year	6 of 100 (Routine)
26 May 2011	Presa Achimec, MX	all-time high max (Tie)	38.3 C (100.9 F)	tie	1 year	6 of 100 (Routine)
25 May 2011	Presa Achimec, MX	all-time high max (Tie)	38.3 C (100.9 F)	tie	1 year	6 of 100 (Routine)
24 May 2011	Presa Achimec, MX	daily high max	37.8 C (100.0 F)	1.7 C (3.1 F)	21 years	16 of 100 (Routine)
22 May 2011	Presa Achimec, MX	daily low min	7.2 C (45.0 F)	0.6 C (1.1 F)	24 years	13 of 100 (Routine)
21 May 2011	Presa Achimec, MX	daily low min	5.0 C (41.0 F)	2.2 C (4.0 F)	12 years	14 of 100 (Routine)

Climate Trend

30 complete years, 1971 to 2009

One stripe for each of 30 complete years at Presa Achimec, 1971 to 2009. Blue stripes are years cooler than the station's own mean of 17.9 C (64.2 F); red stripes are warmer. The coolest year was 1987, at 17.1 C (62.8 F), and the warmest was 2009, at 18.7 C (65.6 F). The strongest colour marks a difference of 0.8 C (1.4 F).

Annual mean temperature at Presa Achimec as warming stripes, 1971 to 2009
Year	Annual mean temperature	Difference from the station mean
1971	17.9 C	+0.01 C
1972	18.4 C	+0.56 C
1973	17.7 C	-0.13 C
1974	17.7 C	-0.14 C
1975	17.7 C	-0.20 C
1976	17.4 C	-0.46 C
1977	17.7 C	-0.20 C
1978	17.9 C	+0.06 C
1979	17.8 C	-0.03 C
1984	17.3 C	-0.62 C
1985	17.6 C	-0.25 C
1987	17.1 C	-0.76 C
1988	17.7 C	-0.13 C
1989	18.0 C	+0.08 C
1990	17.9 C	+0.02 C
1991	17.6 C	-0.28 C
1992	17.2 C	-0.67 C
1993	17.7 C	-0.17 C
1994	18.1 C	+0.26 C
1995	18.0 C	+0.12 C
1996	17.8 C	-0.11 C
1997	17.7 C	-0.19 C
1998	18.5 C	+0.59 C
1999	17.9 C	+0.02 C
2000	18.1 C	+0.23 C
2001	18.2 C	+0.30 C
2002	18.4 C	+0.52 C
2006	18.4 C	+0.56 C
2007	18.2 C	+0.28 C
2009	18.7 C	+0.79 C

The annual mean temperature here has risen by 0.15 C (0.04 to 0.27) per decade over 1971 to 2009. In Fahrenheit: 0.3 F (0.1 to 0.5) 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 Presa Achimec
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.15 C (0.04 to 0.27) per decade	0.3 F (0.1 to 0.5) per decade	1971 to 2009	30	Rise
Mean daily maximum	0.7 C (0.5 to 0.9) per decade	1.3 F (1.0 to 1.6) per decade	1971 to 2009	30	Rise
Mean daily minimum	-0.4 C (-0.6 to -0.2) per decade	-0.7 F (-1.0 to -0.4) per decade	1971 to 2009	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

1969 to 2011

Yearly extremes at Presa Achimec: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.3 C (100.9 F)	2010	35.6 C (96.1 F)	40
Coldest night (TNn)	-7.8 C (18.0 F)	2006	-3.3 C (26.1 F)	40
Wettest day (Rx1day)	69.1 mm (2.7 in)	2010	39.0 mm (1.5 in)	40
Wettest five days (Rx5day)	171.2 mm (6.7 in)	1988	76.5 mm (3.0 in)	40
Longest dry spell (CDD)	164 days	1995	98 days	40

Hottest day (TXx)

The hottest day of the year at Presa Achimec, 1969 to 2011. The record is 38.3 C (100.9 F) in 2010, marked on the chart; the median year is 35.6 C (96.1 F).

Hottest day (TXx) at Presa Achimec by year
Year	Hottest day (TXx)
1969	35.6 C (96.1 F)
1970	35.0 C (95.0 F)
1971	33.9 C (93.0 F)
1972	35.0 C (95.0 F)
1973	35.6 C (96.1 F)
1974	35.6 C (96.1 F)
1975	33.9 C (93.0 F)
1976	33.9 C (93.0 F)
1977	32.8 C (91.0 F)
1978	35.0 C (95.0 F)
1979	36.7 C (98.1 F)
1980	36.7 C (98.1 F)
1981	33.3 C (91.9 F)
1982	35.6 C (96.1 F)
1983	36.7 C (98.1 F)
1984	34.4 C (93.9 F)
1985	36.1 C (97.0 F)
1986	35.6 C (96.1 F)
1987	34.4 C (93.9 F)
1988	35.6 C (96.1 F)
1989	37.2 C (99.0 F)
1990	37.8 C (100.0 F)
1991	35.6 C (96.1 F)
1992	35.6 C (96.1 F)
1993	36.7 C (98.1 F)
1994	35.6 C (96.1 F)
1995	36.7 C (98.1 F)
1996	36.7 C (98.1 F)
1997	35.6 C (96.1 F)
1998	36.7 C (98.1 F)
1999	36.7 C (98.1 F)
2000	36.7 C (98.1 F)
2001	35.6 C (96.1 F)
2002	36.7 C (98.1 F)
2003	32.8 C (91.0 F)
2006	35.6 C (96.1 F)
2007	36.7 C (98.1 F)
2009	37.2 C (99.0 F)
2010	38.3 C (100.9 F)
2011	38.3 C (100.9 F)

Coldest night (TNn)

The coldest night of the year at Presa Achimec, 1969 to 2011. The record is -7.8 C (18.0 F) in 2006, marked on the chart; the median year is -3.3 C (26.1 F).

Coldest night (TNn) at Presa Achimec by year
Year	Coldest night (TNn)
1969	-3.3 C (26.1 F)
1970	-2.2 C (28.0 F)
1971	-2.2 C (28.0 F)
1972	-2.2 C (28.0 F)
1973	-2.8 C (27.0 F)
1974	-2.2 C (28.0 F)
1975	-3.3 C (26.1 F)
1976	-3.3 C (26.1 F)
1977	0.0 C (32.0 F)
1978	-2.8 C (27.0 F)
1979	-5.0 C (23.0 F)
1980	-2.2 C (28.0 F)
1981	-3.3 C (26.1 F)
1982	-2.2 C (28.0 F)
1983	-2.2 C (28.0 F)
1984	-5.0 C (23.0 F)
1985	-6.1 C (21.0 F)
1986	-2.2 C (28.0 F)
1987	-2.8 C (27.0 F)
1988	-6.7 C (19.9 F)
1989	-4.4 C (24.1 F)
1990	-2.8 C (27.0 F)
1991	-5.0 C (23.0 F)
1992	-4.4 C (24.1 F)
1993	-4.4 C (24.1 F)
1994	-5.0 C (23.0 F)
1995	-4.4 C (24.1 F)
1996	-3.3 C (26.1 F)
1997	-5.6 C (21.9 F)
1998	-4.4 C (24.1 F)
1999	-4.4 C (24.1 F)
2000	-3.9 C (25.0 F)
2001	-5.0 C (23.0 F)
2002	-5.0 C (23.0 F)
2003	-3.3 C (26.1 F)
2006	-7.8 C (18.0 F)
2007	-2.8 C (27.0 F)
2009	-2.2 C (28.0 F)
2010	-5.0 C (23.0 F)
2011	-4.4 C (24.1 F)

Wettest day (Rx1day)

The wettest day of the year at Presa Achimec, 1969 to 2011. The record is 69.1 mm (2.7 in) in 2010, marked on the chart; the median year is 39.0 mm (1.5 in).

Wettest day (Rx1day) at Presa Achimec by year
Year	Wettest day (Rx1day)
1969	31.5 mm (1.2 in)
1970	63.0 mm (2.5 in)
1971	59.9 mm (2.4 in)
1972	30.7 mm (1.2 in)
1973	50.0 mm (2.0 in)
1974	34.3 mm (1.4 in)
1975	39.4 mm (1.6 in)
1976	44.2 mm (1.7 in)
1977	34.8 mm (1.4 in)
1978	40.4 mm (1.6 in)
1979	34.8 mm (1.4 in)
1980	38.4 mm (1.5 in)
1981	26.4 mm (1.0 in)
1982	46.7 mm (1.8 in)
1983	35.1 mm (1.4 in)
1984	38.6 mm (1.5 in)
1985	37.1 mm (1.5 in)
1986	45.2 mm (1.8 in)
1987	55.4 mm (2.2 in)
1988	48.8 mm (1.9 in)
1989	32.0 mm (1.3 in)
1990	57.2 mm (2.3 in)
1991	64.8 mm (2.6 in)
1992	39.9 mm (1.6 in)
1993	37.1 mm (1.5 in)
1994	36.3 mm (1.4 in)
1995	53.8 mm (2.1 in)
1996	37.3 mm (1.5 in)
1997	26.4 mm (1.0 in)
1998	39.9 mm (1.6 in)
1999	32.0 mm (1.3 in)
2000	42.4 mm (1.7 in)
2001	29.0 mm (1.1 in)
2002	37.8 mm (1.5 in)
2003	5.8 mm (0.23 in)
2006	55.4 mm (2.2 in)
2007	46.5 mm (1.8 in)
2009	68.1 mm (2.7 in)
2010	69.1 mm (2.7 in)
2011	23.4 mm (0.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Presa Achimec, 1969 to 2011. The record is 171.2 mm (6.7 in) in 1988, marked on the chart; the median year is 76.5 mm (3.0 in).

Wettest five days (Rx5day) at Presa Achimec by year
Year	Wettest five days (Rx5day)
1969	80.7 mm (3.2 in)
1970	155.5 mm (6.1 in)
1971	99.3 mm (3.9 in)
1972	50.5 mm (2.0 in)
1973	96.0 mm (3.8 in)
1974	68.1 mm (2.7 in)
1975	84.6 mm (3.3 in)
1976	92.2 mm (3.6 in)
1977	50.6 mm (2.0 in)
1978	65.6 mm (2.6 in)
1979	57.0 mm (2.2 in)
1980	68.4 mm (2.7 in)
1981	49.4 mm (1.9 in)
1982	69.7 mm (2.7 in)
1983	76.5 mm (3.0 in)
1984	76.5 mm (3.0 in)
1985	95.1 mm (3.7 in)
1986	68.3 mm (2.7 in)
1987	93.7 mm (3.7 in)
1988	171.2 mm (6.7 in)
1989	67.1 mm (2.6 in)
1990	156.1 mm (6.1 in)
1991	121.2 mm (4.8 in)
1992	97.8 mm (3.9 in)
1993	75.3 mm (3.0 in)
1994	69.7 mm (2.7 in)
1995	92.2 mm (3.6 in)
1996	87.9 mm (3.5 in)
1997	42.4 mm (1.7 in)
1998	89.8 mm (3.5 in)
1999	67.3 mm (2.6 in)
2000	73.4 mm (2.9 in)
2001	72.1 mm (2.8 in)
2002	64.5 mm (2.5 in)
2003	5.8 mm (0.23 in)
2006	111.1 mm (4.4 in)
2007	97.5 mm (3.8 in)
2009	85.2 mm (3.4 in)
2010	117.9 mm (4.6 in)
2011	45.7 mm (1.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Presa Achimec, 1969 to 2011. The record is 164 days in 1995, marked on the chart; the median year is 98 days.

Longest dry spell (CDD) at Presa Achimec by year
Year	Longest dry spell (CDD)
1969	105 days
1970	102 days
1971	129 days
1972	126 days
1973	84 days
1974	75 days
1975	134 days
1976	157 days
1977	86 days
1978	81 days
1979	81 days
1980	96 days
1981	31 days
1982	106 days
1983	72 days
1984	101 days
1985	81 days
1986	89 days
1987	79 days
1988	97 days
1989	146 days
1990	111 days
1991	122 days
1992	61 days
1993	103 days
1994	105 days
1995	164 days
1996	71 days
1997	39 days
1998	112 days
1999	98 days
2000	118 days
2001	65 days
2002	82 days
2003	52 days
2006	106 days
2007	109 days
2009	109 days
2010	95 days
2011	88 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.

Frost Dates and Growing Season

25 years with a frost

Across 25 years with a frost, the median last spring frost at Presa Achimec falls on 14 March and the median first autumn frost on 26 November, which leaves a median of 257 days between them.

Fitted over all years, the growing season changes by -9.9 days per decade at this station.

Frost dates and growing season at Presa Achimec
Measure	Median, all years	Earliest period	Recent period (1973 to 2009)	Recent against earliest	Fitted trend
Last spring frost	14 March	n/a	14 March	n/a	+2.7 days per decade
First autumn frost	26 November	n/a	26 November	n/a	-7.2 days per decade
Growing days	257 days	n/a	257 days	n/a	-9.9 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

33 years, 1970 to 2010

A day with at least 41.5 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 86.4 mm (3.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Presa Achimec: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	41.5 mm (1.6 in)
5 years	52.5 mm (2.1 in)
10 years	60.1 mm (2.4 in)
25 years	70.3 mm (2.8 in)
50 years	78.2 mm (3.1 in)	Longer than the 33 years of record
100 years	86.4 mm (3.4 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 1970 to 2010.

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: 69.1 mm (2.7 in) in 2010; 68.1 mm (2.7 in) in 2009; 64.8 mm (2.6 in) in 1991.

Download the Data

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