Astatla Weather Records (MXN00020003)

Record envelope, standing records and threshold days for Astatla (MXN00020003), Mexico, with 56 years of record.

Key Facts for Astatla

Astatla (MXN00020003) is a weather station in Mexico at 17.97 latitude and -97.42 longitude, 2,121 m (6,958 ft) above sea level.
The station reports from 1955 to 2010, 56 years of record.
1,464 records set at Astatla still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Astatla tied a daily record low minimum temperature of 0.0 C (32.0 F) on 28 December 2010.

About the Station

Location: Mexico, 17.97 latitude, -97.42 longitude.
Elevation: 2,121 m (6,958 ft).
Period of record: 1955 to 2010, 56 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 Astatla. 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 Astatla, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	30.6 C (87.1 F)	-3.3 C (26.1 F)	n/a	n/a
Feb	30.0 C (86.0 F)	-2.2 C (28.0 F)	n/a	n/a
Mar	35.0 C (95.0 F)	0.0 C (32.0 F)	n/a	n/a
Apr	35.0 C (95.0 F)	0.6 C (33.1 F)	n/a	n/a
May	37.8 C (100.0 F)	2.8 C (37.0 F)	n/a	n/a
Jun	35.6 C (96.1 F)	1.7 C (35.1 F)	n/a	n/a
Jul	31.7 C (89.1 F)	3.9 C (39.0 F)	n/a	n/a
Aug	32.8 C (91.0 F)	2.8 C (37.0 F)	n/a	n/a
Sep	30.6 C (87.1 F)	0.0 C (32.0 F)	n/a	n/a
Oct	30.6 C (87.1 F)	1.7 C (35.1 F)	n/a	n/a
Nov	33.9 C (93.0 F)	-3.3 C (26.1 F)	n/a	n/a
Dec	31.7 C (89.1 F)	-1.1 C (30.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Astatla still stand. 1975 holds the most, with 79.

Standing records at Astatla by the year they were set
Year set	Standing records
1955	34
1956	53
1957	28
1958	34
1959	19
1960	38
1961	24
1962	30
1963	23
1964	44
1965	30
1966	30
1967	25
1968	38
1969	48
1970	35
1971	27
1972	33
1973	53
1974	27
1975	79
1976	7
1977	56
1978	41
1979	22
1980	28
1981	21
1982	22
1983	53
1984	19
1988	7
1991	36
1992	32
1993	21
2000	32
2001	31
2002	33
2003	34
2004	38
2005	22
2006	27
2007	29
2008	35
2009	27
2010	39

Wettest Day of Each Month

Jul: 119.9 mm (4.7 in)

The wettest day on record for each calendar month at Astatla. The most was 119.9 mm (4.7 in) on 5 July 1955.

Record daily precipitation for each month at Astatla
Month	Record daily precipitation (mm)	Date
Jan	27.9 mm (1.1 in)	19 January 1958
Feb	34.3 mm (1.4 in)	25 February 1983
Mar	48.3 mm (1.9 in)	12 March 1974
Apr	47.0 mm (1.9 in)	23 April 1964
May	63.8 mm (2.5 in)	29 May 1975
Jun	64.3 mm (2.5 in)	20 June 1983
Jul	119.9 mm (4.7 in)	5 July 1955
Aug	63.8 mm (2.5 in)	14 August 2000
Sep	60.2 mm (2.4 in)	6 September 1955
Oct	59.9 mm (2.4 in)	3 October 1962
Nov	29.0 mm (1.1 in)	5 November 1992
Dec	19.8 mm (0.8 in)	5 December 1979

Period of Record Coverage

1955 to 2010

45 years of record at Astatla, 1955 to 2010. 5 years have data for under 90 percent of days and are left out of rankings: 1955, 1965, 1966, 1993, 2001.

Days with data per year at Astatla
Year	Days with data	Share of year	Complete
1955	273	75%	No
1956	366	100%	Yes
1957	363	99%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	366	100%	Yes
1961	364	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	306	84%	No
1966	183	50%	No
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	364	100%	Yes
1976	335	92%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	335	92%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	335	92%	Yes
1988	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	243	67%	No
2000	349	95%	Yes
2001	328	90%	No
2002	334	92%	Yes
2003	365	100%	Yes
2004	365	100%	Yes
2005	365	100%	Yes
2006	365	100%	Yes
2007	334	92%	Yes
2008	366	100%	Yes
2009	365	100%	Yes
2010	364	100%	Yes

Latest Records

Latest records at Astatla
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 December 2010	Astatla, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	55 years	5 of 100 (Routine)
24 December 2010	Astatla, MX	monthly low min (Tie)	-1.1 C (30.0 F)	tie	30 years	6 of 100 (Routine)
15 December 2010	Astatla, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	40 years	4 of 100 (Routine)
14 December 2010	Astatla, MX	monthly low min (Tie)	-1.1 C (30.0 F)	tie	29 years	5 of 100 (Routine)
12 December 2010	Astatla, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	52 years	5 of 100 (Routine)
11 December 2010	Astatla, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	25 years	3 of 100 (Routine)
10 December 2010	Astatla, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	52 years	5 of 100 (Routine)
6 December 2010	Astatla, MX	daily high max	27.8 C (82.0 F)	1.1 C (2.0 F)	37 years	19 of 100 (Routine)
6 December 2010	Astatla, MX	daily low min	0.0 C (32.0 F)	0.6 C (1.1 F)	7 years	9 of 100 (Routine)
5 December 2010	Astatla, MX	monthly low min (Tie)	-1.1 C (30.0 F)	tie	29 years	5 of 100 (Routine)
2 December 2010	Astatla, MX	daily high max (Tie)	27.8 C (82.0 F)	tie	37 years	4 of 100 (Routine)
26 November 2010	Astatla, MX	daily high max (Tie)	27.8 C (82.0 F)	tie	29 years	3 of 100 (Routine)
25 November 2010	Astatla, MX	daily high max (Tie)	27.8 C (82.0 F)	tie	29 years	3 of 100 (Routine)
24 November 2010	Astatla, MX	daily low max (Tie)	15.6 C (60.1 F)	tie	53 years	5 of 100 (Routine)
7 November 2010	Astatla, MX	daily low max	16.7 C (62.1 F)	0.5 C (0.9 F)	51 years	21 of 100 (Routine)
6 November 2010	Astatla, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	44 years	4 of 100 (Routine)
5 November 2010	Astatla, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	44 years	4 of 100 (Routine)
5 November 2010	Astatla, MX	daily low max (Tie)	15.6 C (60.1 F)	tie	5 years	1 of 100 (Routine)
3 November 2010	Astatla, MX	daily rain	17.8 mm (0.7 in)	4.8 mm (0.19 in)	48 years	20 of 100 (Routine)
30 October 2010	Astatla, MX	daily high min	11.7 C (53.1 F)	1.1 C (2.0 F)	49 years	23 of 100 (Routine)

Climate Trend

34 complete years, 1956 to 2010

One stripe for each of 34 complete years at Astatla, 1956 to 2010. Blue stripes are years cooler than the station's own mean of 16.2 C (61.2 F); red stripes are warmer. The coolest year was 1977, at 15.4 C (59.6 F), and the warmest was 1975, at 16.8 C (62.3 F). The strongest colour marks a difference of 0.9 C (1.6 F).

Annual mean temperature at Astatla as warming stripes, 1956 to 2010
Year	Annual mean temperature	Difference from the station mean
1956	15.8 C	-0.43 C
1957	16.5 C	+0.25 C
1958	16.7 C	+0.44 C
1959	16.2 C	-0.01 C
1960	16.5 C	+0.25 C
1961	16.6 C	+0.31 C
1962	16.7 C	+0.45 C
1963	16.2 C	-0.03 C
1964	16.8 C	+0.56 C
1967	16.2 C	-0.09 C
1968	15.8 C	-0.49 C
1969	16.7 C	+0.41 C
1970	16.3 C	+0.06 C
1971	16.3 C	+0.00 C
1972	16.6 C	+0.35 C
1973	16.6 C	+0.35 C
1974	15.9 C	-0.33 C
1975	16.8 C	+0.59 C
1977	15.4 C	-0.90 C
1978	15.7 C	-0.59 C
1979	15.8 C	-0.46 C
1981	16.2 C	-0.05 C
1982	15.9 C	-0.31 C
1983	16.2 C	-0.05 C
1988	16.2 C	-0.06 C
1991	16.4 C	+0.18 C
1992	15.8 C	-0.46 C
2003	16.4 C	+0.11 C
2004	16.1 C	-0.16 C
2005	16.4 C	+0.16 C
2006	16.2 C	-0.09 C
2008	15.8 C	-0.41 C
2009	16.6 C	+0.33 C
2010	16.4 C	+0.11 C

The fitted trend in annual mean temperature here over 1956 to 2010 is -0.04 C (-0.11 to 0.04) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.2 to 0.1) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Astatla
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.04 C (-0.11 to 0.04) per decade	-0.1 F (-0.2 to 0.1) per decade	1956 to 2010	34	Not clearly different from zero
Mean daily maximum	-0.1 C (-0.2 to 0.1) per decade	-0.1 F (-0.3 to 0.1) per decade	1956 to 2010	34	Not clearly different from zero
Mean daily minimum	-0.02 C (-0.12 to 0.08) per decade	-0.04 F (-0.22 to 0.14) per decade	1956 to 2010	34	Not clearly different from zero

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

1955 to 2010

Yearly extremes at Astatla: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.8 C (100.0 F)	1974	31.7 C (89.1 F)	45
Coldest night (TNn)	-3.3 C (26.1 F)	1956	0.0 C (32.0 F)	45
Wettest day (Rx1day)	119.9 mm (4.7 in)	1955	46.2 mm (1.8 in)	45
Wettest five days (Rx5day)	212.3 mm (8.4 in)	1955	96.3 mm (3.8 in)	45
Longest dry spell (CDD)	144 days	2003	87 days	45

Hottest day (TXx)

The hottest day of the year at Astatla, 1955 to 2010. The record is 37.8 C (100.0 F) in 1974, marked on the chart; the median year is 31.7 C (89.1 F).

Hottest day (TXx) at Astatla by year
Year	Hottest day (TXx)
1955	31.7 C (89.1 F)
1956	30.6 C (87.1 F)
1957	30.6 C (87.1 F)
1958	33.3 C (91.9 F)
1959	31.1 C (88.0 F)
1960	32.8 C (91.0 F)
1961	31.7 C (89.1 F)
1962	31.7 C (89.1 F)
1963	31.1 C (88.0 F)
1964	31.7 C (89.1 F)
1965	30.6 C (87.1 F)
1966	28.9 C (84.0 F)
1967	31.1 C (88.0 F)
1968	30.0 C (86.0 F)
1969	31.7 C (89.1 F)
1970	32.8 C (91.0 F)
1971	32.8 C (91.0 F)
1972	33.9 C (93.0 F)
1973	35.0 C (95.0 F)
1974	37.8 C (100.0 F)
1975	35.0 C (95.0 F)
1976	30.0 C (86.0 F)
1977	32.8 C (91.0 F)
1978	31.7 C (89.1 F)
1979	31.7 C (89.1 F)
1980	31.7 C (89.1 F)
1981	31.7 C (89.1 F)
1982	30.6 C (87.1 F)
1983	33.3 C (91.9 F)
1984	31.1 C (88.0 F)
1988	31.1 C (88.0 F)
1991	32.8 C (91.0 F)
1992	30.0 C (86.0 F)
1993	31.7 C (89.1 F)
2000	31.7 C (89.1 F)
2001	31.7 C (89.1 F)
2002	32.8 C (91.0 F)
2003	32.8 C (91.0 F)
2004	30.0 C (86.0 F)
2005	31.7 C (89.1 F)
2006	31.1 C (88.0 F)
2007	30.6 C (87.1 F)
2008	32.2 C (90.0 F)
2009	31.7 C (89.1 F)
2010	32.8 C (91.0 F)

Coldest night (TNn)

The coldest night of the year at Astatla, 1955 to 2010. The record is -3.3 C (26.1 F) in 1956, marked on the chart; the median year is 0.0 C (32.0 F).

Coldest night (TNn) at Astatla by year
Year	Coldest night (TNn)
1955	0.0 C (32.0 F)
1956	-3.3 C (26.1 F)
1957	0.0 C (32.0 F)
1958	-1.1 C (30.0 F)
1959	0.6 C (33.1 F)
1960	0.0 C (32.0 F)
1961	0.6 C (33.1 F)
1962	0.0 C (32.0 F)
1963	-1.1 C (30.0 F)
1964	2.8 C (37.0 F)
1965	2.8 C (37.0 F)
1966	-3.3 C (26.1 F)
1967	-1.1 C (30.0 F)
1968	-2.2 C (28.0 F)
1969	0.0 C (32.0 F)
1970	0.0 C (32.0 F)
1971	0.0 C (32.0 F)
1972	0.0 C (32.0 F)
1973	-2.2 C (28.0 F)
1974	0.6 C (33.1 F)
1975	2.8 C (37.0 F)
1976	0.0 C (32.0 F)
1977	0.0 C (32.0 F)
1978	0.6 C (33.1 F)
1979	2.8 C (37.0 F)
1980	-1.1 C (30.0 F)
1981	0.0 C (32.0 F)
1982	-1.1 C (30.0 F)
1983	-2.2 C (28.0 F)
1984	0.0 C (32.0 F)
1988	-1.1 C (30.0 F)
1991	0.0 C (32.0 F)
1992	0.6 C (33.1 F)
1993	0.0 C (32.0 F)
2000	-2.2 C (28.0 F)
2001	-1.1 C (30.0 F)
2002	-1.1 C (30.0 F)
2003	0.0 C (32.0 F)
2004	-1.1 C (30.0 F)
2005	0.0 C (32.0 F)
2006	-1.1 C (30.0 F)
2007	0.0 C (32.0 F)
2008	-1.1 C (30.0 F)
2009	0.0 C (32.0 F)
2010	-1.1 C (30.0 F)

Wettest day (Rx1day)

The wettest day of the year at Astatla, 1955 to 2010. The record is 119.9 mm (4.7 in) in 1955, marked on the chart; the median year is 46.2 mm (1.8 in).

Wettest day (Rx1day) at Astatla by year
Year	Wettest day (Rx1day)
1955	119.9 mm (4.7 in)
1956	46.0 mm (1.8 in)
1957	35.8 mm (1.4 in)
1958	59.9 mm (2.4 in)
1959	37.8 mm (1.5 in)
1960	57.9 mm (2.3 in)
1961	26.9 mm (1.1 in)
1962	59.9 mm (2.4 in)
1963	37.8 mm (1.5 in)
1964	47.0 mm (1.9 in)
1965	42.9 mm (1.7 in)
1966	39.9 mm (1.6 in)
1967	52.8 mm (2.1 in)
1968	51.1 mm (2.0 in)
1969	60.5 mm (2.4 in)
1970	29.2 mm (1.1 in)
1971	38.4 mm (1.5 in)
1972	45.2 mm (1.8 in)
1973	33.8 mm (1.3 in)
1974	48.3 mm (1.9 in)
1975	63.8 mm (2.5 in)
1976	38.4 mm (1.5 in)
1977	35.8 mm (1.4 in)
1978	46.2 mm (1.8 in)
1979	40.1 mm (1.6 in)
1980	38.9 mm (1.5 in)
1981	35.3 mm (1.4 in)
1982	29.0 mm (1.1 in)
1983	64.3 mm (2.5 in)
1984	59.9 mm (2.4 in)
1988	57.9 mm (2.3 in)
1991	50.8 mm (2.0 in)
1992	62.0 mm (2.4 in)
1993	63.8 mm (2.5 in)
2000	63.8 mm (2.5 in)
2001	30.0 mm (1.2 in)
2002	51.8 mm (2.0 in)
2003	63.0 mm (2.5 in)
2004	39.9 mm (1.6 in)
2005	58.9 mm (2.3 in)
2006	63.5 mm (2.5 in)
2007	29.0 mm (1.1 in)
2008	39.9 mm (1.6 in)
2009	37.8 mm (1.5 in)
2010	96.8 mm (3.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Astatla, 1955 to 2010. The record is 212.3 mm (8.4 in) in 1955, marked on the chart; the median year is 96.3 mm (3.8 in).

Wettest five days (Rx5day) at Astatla by year
Year	Wettest five days (Rx5day)
1955	212.3 mm (8.4 in)
1956	71.9 mm (2.8 in)
1957	73.4 mm (2.9 in)
1958	113.1 mm (4.5 in)
1959	101.8 mm (4.0 in)
1960	86.4 mm (3.4 in)
1961	72.6 mm (2.9 in)
1962	193.5 mm (7.6 in)
1963	78.5 mm (3.1 in)
1964	75.7 mm (3.0 in)
1965	95.1 mm (3.7 in)
1966	100.3 mm (3.9 in)
1967	96.3 mm (3.8 in)
1968	93.3 mm (3.7 in)
1969	147.8 mm (5.8 in)
1970	65.8 mm (2.6 in)
1971	84.7 mm (3.3 in)
1972	107.7 mm (4.2 in)
1973	72.9 mm (2.9 in)
1974	140.7 mm (5.5 in)
1975	108.8 mm (4.3 in)
1976	123.4 mm (4.9 in)
1977	44.7 mm (1.8 in)
1978	127.1 mm (5.0 in)
1979	109.5 mm (4.3 in)
1980	114.4 mm (4.5 in)
1981	69.4 mm (2.7 in)
1982	55.1 mm (2.2 in)
1983	113.6 mm (4.5 in)
1984	76.8 mm (3.0 in)
1988	173.5 mm (6.8 in)
1991	168.4 mm (6.6 in)
1992	139.5 mm (5.5 in)
1993	191.8 mm (7.6 in)
2000	102.7 mm (4.0 in)
2001	76.5 mm (3.0 in)
2002	111.3 mm (4.4 in)
2003	90.2 mm (3.6 in)
2004	62.5 mm (2.5 in)
2005	114.8 mm (4.5 in)
2006	81.3 mm (3.2 in)
2007	50.8 mm (2.0 in)
2008	68.3 mm (2.7 in)
2009	63.6 mm (2.5 in)
2010	162.4 mm (6.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Astatla, 1955 to 2010. The record is 144 days in 2003, marked on the chart; the median year is 87 days.

Longest dry spell (CDD) at Astatla by year
Year	Longest dry spell (CDD)
1955	53 days
1956	122 days
1957	125 days
1958	87 days
1959	98 days
1960	126 days
1961	122 days
1962	105 days
1963	57 days
1964	80 days
1965	73 days
1966	74 days
1967	62 days
1968	44 days
1969	58 days
1970	109 days
1971	55 days
1972	123 days
1973	104 days
1974	92 days
1975	92 days
1976	87 days
1977	114 days
1978	79 days
1979	110 days
1980	59 days
1981	137 days
1982	81 days
1983	84 days
1984	57 days
1988	75 days
1991	76 days
1992	21 days
1993	26 days
2000	118 days
2001	115 days
2002	98 days
2003	144 days
2004	78 days
2005	98 days
2006	81 days
2007	35 days
2008	117 days
2009	104 days
2010	58 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

38 years, 1956 to 2010

A day with at least 46.2 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 88.6 mm (3.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Astatla: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	46.2 mm (1.8 in)
5 years	58.9 mm (2.3 in)
10 years	66.8 mm (2.6 in)
25 years	76.1 mm (3.0 in)
50 years	82.5 mm (3.2 in)	Longer than the 38 years of record
100 years	88.6 mm (3.5 in)	Longer than the 38 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, 38 years of values from 1956 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: 96.8 mm (3.8 in) in 2010; 64.3 mm (2.5 in) in 1983; 63.8 mm (2.5 in) in 1975.

Download the Data

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