Ahome Weather Records (MXN00025003)

Record envelope, standing records and threshold days for Ahome (MXN00025003), Mexico, with 45 years of record.

Key Facts for Ahome

Ahome (MXN00025003) is a weather station in Mexico at 25.92 latitude and -109.17 longitude, 10 m (32 ft) above sea level.
The station reports from 1962 to 2006, 45 years of record.
1,464 records set at Ahome still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Ahome tied a daily record low minimum temperature of 10.6 C (51.1 F) on 11 May 2006.

About the Station

Location: Mexico, 25.92 latitude, -109.17 longitude.
Elevation: 10 m (32 ft).
Period of record: 1962 to 2006, 45 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 Ahome. 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 Ahome, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	38.9 C (102.0 F)	2.8 C (37.0 F)	n/a	n/a
Feb	36.7 C (98.1 F)	1.7 C (35.1 F)	n/a	n/a
Mar	40.0 C (104.0 F)	5.0 C (41.0 F)	n/a	n/a
Apr	40.6 C (105.1 F)	5.0 C (41.0 F)	n/a	n/a
May	41.1 C (106.0 F)	7.8 C (46.0 F)	n/a	n/a
Jun	42.2 C (108.0 F)	10.0 C (50.0 F)	n/a	n/a
Jul	45.0 C (113.0 F)	20.0 C (68.0 F)	n/a	n/a
Aug	50.0 C (122.0 F)	20.6 C (69.1 F)	n/a	n/a
Sep	49.4 C (120.9 F)	16.7 C (62.1 F)	n/a	n/a
Oct	42.8 C (109.0 F)	10.0 C (50.0 F)	n/a	n/a
Nov	39.4 C (102.9 F)	5.0 C (41.0 F)	n/a	n/a
Dec	35.0 C (95.0 F)	1.7 C (35.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Ahome still stand. 1963 holds the most, with 85.

Standing records at Ahome by the year they were set
Year set	Standing records
1962	64
1963	85
1964	36
1965	52
1966	19
1967	59
1968	55
1969	36
1970	35
1971	56
1972	23
1973	44
1974	27
1975	50
1976	21
1977	37
1978	36
1979	32
1980	44
1981	34
1982	16
1983	23
1984	23
1985	15
1986	19
1987	20
1988	22
1989	26
1990	32
1991	32
1992	38
1993	31
1994	27
1995	21
1996	29
1997	40
1998	21
1999	21
2000	35
2001	25
2002	23
2003	33
2004	22
2005	20
2006	5

All-Time Record Progression

1 new records

1 all-time records were set at Ahome between 2 September 1998 and 2 September 1998. Each dot is a new record.

Wettest Day of Each Month

Sep: 160.8 mm (6.3 in)

The wettest day on record for each calendar month at Ahome. The most was 160.8 mm (6.3 in) on 2 September 1998.

Record daily precipitation for each month at Ahome
Month	Record daily precipitation (mm)	Date
Jan	113.8 mm (4.5 in)	14 January 2004
Feb	64.8 mm (2.6 in)	17 February 1998
Mar	35.8 mm (1.4 in)	3 March 1983
Apr	79.8 mm (3.1 in)	25 April 1997
May	11.9 mm (0.5 in)	20 May 1997
Jun	89.9 mm (3.5 in)	26 June 1999
Jul	91.9 mm (3.6 in)	10 July 1963
Aug	159.8 mm (6.3 in)	25 August 1999
Sep	160.8 mm (6.3 in)	2 September 1998
Oct	73.9 mm (2.9 in)	14 October 1964
Nov	147.8 mm (5.8 in)	12 November 1997
Dec	129.8 mm (5.1 in)	22 December 1997

Period of Record Coverage

1962 to 2006

45 years of record at Ahome, 1962 to 2006. 5 years have data for under 90 percent of days and are left out of rankings: 1962, 1995, 1996, 2005, 2006.

Days with data per year at Ahome
Year	Days with data	Share of year	Complete
1962	179	49%	No
1963	364	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	335	92%	Yes
1970	365	100%	Yes
1971	364	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	366	100%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	335	92%	Yes
1988	366	100%	Yes
1989	334	92%	Yes
1990	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	243	67%	No
1996	304	83%	No
1997	365	100%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	366	100%	Yes
2001	365	100%	Yes
2002	365	100%	Yes
2003	354	97%	Yes
2004	360	98%	Yes
2005	304	83%	No
2006	147	40%	No

Latest Records

Latest records at Ahome
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 May 2006	Ahome, MX	daily low min (Tie)	10.6 C (51.1 F)	tie	40 years	4 of 100 (Routine)
6 May 2006	Ahome, MX	daily low min (Tie)	10.0 C (50.0 F)	tie	36 years	3 of 100 (Routine)
1 May 2006	Ahome, MX	monthly low min (Tie)	7.8 C (46.0 F)	tie	30 years	5 of 100 (Routine)
24 March 2006	Ahome, MX	daily high max	37.2 C (99.0 F)	1.6 C (2.9 F)	17 years	13 of 100 (Routine)
8 March 2006	Ahome, MX	daily high min (Tie)	15.0 C (59.0 F)	tie	37 years	3 of 100 (Routine)
2 March 2006	Ahome, MX	daily high max	35.6 C (96.1 F)	2.8 C (5.0 F)	32 years	21 of 100 (Routine)
28 February 2006	Ahome, MX	daily high max	33.9 C (93.0 F)	1.1 C (2.0 F)	30 years	16 of 100 (Routine)
21 January 2006	Ahome, MX	daily low min (Tie)	5.0 C (41.0 F)	tie	38 years	3 of 100 (Routine)
7 January 2006	Ahome, MX	daily high max	35.0 C (95.0 F)	5.0 C (9.0 F)	28 years	27 of 100 (Routine)
28 September 2005	Ahome, MX	daily high max (Tie)	40.6 C (105.1 F)	tie	16 years	2 of 100 (Routine)
22 September 2005	Ahome, MX	daily high max (Tie)	40.0 C (104.0 F)	tie	27 years	3 of 100 (Routine)
17 September 2005	Ahome, MX	daily high max	41.1 C (106.0 F)	0.5 C (0.9 F)	24 years	12 of 100 (Routine)
14 September 2005	Ahome, MX	daily high max	41.1 C (106.0 F)	1.1 C (2.0 F)	24 years	15 of 100 (Routine)
13 September 2005	Ahome, MX	daily high max	43.9 C (111.0 F)	2.8 C (5.0 F)	2 years	15 of 100 (Routine)
12 September 2005	Ahome, MX	daily high max	43.3 C (109.9 F)	1.6 C (2.9 F)	8 years	12 of 100 (Routine)
11 September 2005	Ahome, MX	daily high max (Tie)	42.8 C (109.0 F)	tie	4 years	1 of 100 (Routine)
7 September 2005	Ahome, MX	daily high max	42.2 C (108.0 F)	0.5 C (0.9 F)	4 years	6 of 100 (Routine)
6 September 2005	Ahome, MX	daily high max	44.4 C (111.9 F)	0.5 C (0.9 F)	43 years	17 of 100 (Routine)
3 September 2005	Ahome, MX	daily low min (Tie)	21.7 C (71.1 F)	tie	7 years	1 of 100 (Routine)
21 August 2005	Ahome, MX	daily high max	44.4 C (111.9 F)	1.6 C (2.9 F)	4 years	11 of 100 (Routine)

Climate Trend

37 complete years, 1963 to 2004

One stripe for each of 37 complete years at Ahome, 1963 to 2004. Blue stripes are years cooler than the station's own mean of 25.0 C (77.0 F); red stripes are warmer. The coolest year was 1971, at 23.5 C (74.3 F), and the warmest was 1994, at 26.0 C (78.8 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at Ahome as warming stripes, 1963 to 2004
Year	Annual mean temperature	Difference from the station mean
1963	24.8 C	-0.17 C
1964	24.9 C	-0.07 C
1965	24.7 C	-0.26 C
1966	24.5 C	-0.53 C
1967	24.3 C	-0.72 C
1968	23.9 C	-1.06 C
1970	23.9 C	-1.14 C
1971	23.5 C	-1.51 C
1972	24.3 C	-0.74 C
1973	23.8 C	-1.17 C
1974	24.0 C	-0.97 C
1975	23.7 C	-1.33 C
1976	24.6 C	-0.39 C
1977	25.8 C	+0.77 C
1978	25.8 C	+0.85 C
1979	25.0 C	+0.01 C
1980	25.6 C	+0.62 C
1981	25.6 C	+0.59 C
1982	24.9 C	-0.06 C
1983	25.1 C	+0.12 C
1984	25.2 C	+0.17 C
1985	25.0 C	-0.03 C
1986	25.4 C	+0.36 C
1988	25.2 C	+0.24 C
1990	25.3 C	+0.34 C
1991	25.2 C	+0.22 C
1992	25.8 C	+0.76 C
1993	25.6 C	+0.60 C
1994	26.0 C	+1.01 C
1997	25.9 C	+0.92 C
1998	25.3 C	+0.27 C
1999	25.3 C	+0.26 C
2000	25.3 C	+0.33 C
2001	25.1 C	+0.12 C
2002	25.3 C	+0.30 C
2003	25.9 C	+0.88 C
2004	25.3 C	+0.28 C

The annual mean temperature here has risen by 0.4 C (0.2 to 0.5) per decade over 1963 to 2004. In Fahrenheit: 0.6 F (0.4 to 0.9) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Ahome
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.4 C (0.2 to 0.5) per decade	0.6 F (0.4 to 0.9) per decade	1963 to 2004	37	Rise
Mean daily maximum	0.5 C (0.3 to 0.7) per decade	0.9 F (0.6 to 1.3) per decade	1963 to 2004	37	Rise
Mean daily minimum	0.18 C (-0.05 to 0.41) per decade	0.3 F (-0.1 to 0.7) per decade	1963 to 2004	37	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

1962 to 2006

Yearly extremes at Ahome: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	50.0 C (122.0 F)	1962	41.1 C (106.0 F)	45
Coldest night (TNn)	1.7 C (35.1 F)	1965	5.0 C (41.0 F)	45
Wettest day (Rx1day)	160.8 mm (6.3 in)	1998	69.9 mm (2.8 in)	45
Wettest five days (Rx5day)	271.8 mm (10.7 in)	1971	93.5 mm (3.7 in)	45
Longest dry spell (CDD)	210 days	1994	126 days	45

Hottest day (TXx)

The hottest day of the year at Ahome, 1962 to 2006. The record is 50.0 C (122.0 F) in 1962, marked on the chart; the median year is 41.1 C (106.0 F).

Hottest day (TXx) at Ahome by year
Year	Hottest day (TXx)
1962	50.0 C (122.0 F)
1963	41.7 C (107.1 F)
1964	41.7 C (107.1 F)
1965	40.0 C (104.0 F)
1966	41.7 C (107.1 F)
1967	40.0 C (104.0 F)
1968	40.0 C (104.0 F)
1969	40.6 C (105.1 F)
1970	38.9 C (102.0 F)
1971	40.0 C (104.0 F)
1972	39.4 C (102.9 F)
1973	40.0 C (104.0 F)
1974	39.4 C (102.9 F)
1975	40.0 C (104.0 F)
1976	38.9 C (102.0 F)
1977	40.6 C (105.1 F)
1978	41.7 C (107.1 F)
1979	40.6 C (105.1 F)
1980	40.0 C (104.0 F)
1981	43.3 C (109.9 F)
1982	41.7 C (107.1 F)
1983	40.0 C (104.0 F)
1984	40.0 C (104.0 F)
1985	40.6 C (105.1 F)
1986	41.1 C (106.0 F)
1987	41.7 C (107.1 F)
1988	41.7 C (107.1 F)
1989	40.6 C (105.1 F)
1990	41.1 C (106.0 F)
1991	41.1 C (106.0 F)
1992	41.1 C (106.0 F)
1993	40.6 C (105.1 F)
1994	41.7 C (107.1 F)
1995	42.8 C (109.0 F)
1996	43.9 C (111.0 F)
1997	44.4 C (111.9 F)
1998	43.9 C (111.0 F)
1999	41.7 C (107.1 F)
2000	42.8 C (109.0 F)
2001	42.8 C (109.0 F)
2002	42.2 C (108.0 F)
2003	44.4 C (111.9 F)
2004	42.2 C (108.0 F)
2005	44.4 C (111.9 F)
2006	38.9 C (102.0 F)

Coldest night (TNn)

The coldest night of the year at Ahome, 1962 to 2006. The record is 1.7 C (35.1 F) in 1965, marked on the chart; the median year is 5.0 C (41.0 F).

Coldest night (TNn) at Ahome by year
Year	Coldest night (TNn)
1962	8.9 C (48.0 F)
1963	5.0 C (41.0 F)
1964	5.0 C (41.0 F)
1965	1.7 C (35.1 F)
1966	2.2 C (36.0 F)
1967	3.9 C (39.0 F)
1968	5.0 C (41.0 F)
1969	1.7 C (35.1 F)
1970	5.6 C (42.1 F)
1971	2.8 C (37.0 F)
1972	5.0 C (41.0 F)
1973	3.9 C (39.0 F)
1974	3.3 C (37.9 F)
1975	3.3 C (37.9 F)
1976	6.7 C (44.1 F)
1977	5.0 C (41.0 F)
1978	6.7 C (44.1 F)
1979	5.6 C (42.1 F)
1980	7.2 C (45.0 F)
1981	5.0 C (41.0 F)
1982	5.0 C (41.0 F)
1983	6.7 C (44.1 F)
1984	7.8 C (46.0 F)
1985	5.6 C (42.1 F)
1986	6.7 C (44.1 F)
1987	4.4 C (39.9 F)
1988	3.9 C (39.0 F)
1989	5.0 C (41.0 F)
1990	6.1 C (43.0 F)
1991	6.7 C (44.1 F)
1992	5.6 C (42.1 F)
1993	7.8 C (46.0 F)
1994	6.7 C (44.1 F)
1995	6.7 C (44.1 F)
1996	3.9 C (39.0 F)
1997	5.0 C (41.0 F)
1998	5.6 C (42.1 F)
1999	5.0 C (41.0 F)
2000	5.0 C (41.0 F)
2001	5.0 C (41.0 F)
2002	3.9 C (39.0 F)
2003	6.7 C (44.1 F)
2004	5.6 C (42.1 F)
2005	7.8 C (46.0 F)
2006	5.0 C (41.0 F)

Wettest day (Rx1day)

The wettest day of the year at Ahome, 1962 to 2006. The record is 160.8 mm (6.3 in) in 1998, marked on the chart; the median year is 69.9 mm (2.8 in).

Wettest day (Rx1day) at Ahome by year
Year	Wettest day (Rx1day)
1962	69.9 mm (2.8 in)
1963	91.9 mm (3.6 in)
1964	73.9 mm (2.9 in)
1965	32.3 mm (1.3 in)
1966	54.4 mm (2.1 in)
1967	125.7 mm (4.9 in)
1968	78.0 mm (3.1 in)
1969	70.1 mm (2.8 in)
1970	75.2 mm (3.0 in)
1971	147.8 mm (5.8 in)
1972	100.1 mm (3.9 in)
1973	39.9 mm (1.6 in)
1974	52.8 mm (2.1 in)
1975	33.8 mm (1.3 in)
1976	80.3 mm (3.2 in)
1977	63.8 mm (2.5 in)
1978	46.5 mm (1.8 in)
1979	72.9 mm (2.9 in)
1980	75.9 mm (3.0 in)
1981	54.9 mm (2.2 in)
1982	142.7 mm (5.6 in)
1983	57.9 mm (2.3 in)
1984	56.4 mm (2.2 in)
1985	48.8 mm (1.9 in)
1986	41.4 mm (1.6 in)
1987	16.8 mm (0.7 in)
1988	78.0 mm (3.1 in)
1989	50.3 mm (2.0 in)
1990	54.9 mm (2.2 in)
1991	51.8 mm (2.0 in)
1992	61.5 mm (2.4 in)
1993	64.8 mm (2.6 in)
1994	129.8 mm (5.1 in)
1995	144.8 mm (5.7 in)
1996	31.0 mm (1.2 in)
1997	147.8 mm (5.8 in)
1998	160.8 mm (6.3 in)
1999	159.8 mm (6.3 in)
2000	29.0 mm (1.1 in)
2001	95.3 mm (3.8 in)
2002	74.9 mm (2.9 in)
2003	48.8 mm (1.9 in)
2004	113.8 mm (4.5 in)
2005	95.0 mm (3.7 in)
2006	0.0 mm (0.00 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ahome, 1962 to 2006. The record is 271.8 mm (10.7 in) in 1971, marked on the chart; the median year is 93.5 mm (3.7 in).

Wettest five days (Rx5day) at Ahome by year
Year	Wettest five days (Rx5day)
1962	91.2 mm (3.6 in)
1963	96.5 mm (3.8 in)
1964	128.5 mm (5.1 in)
1965	41.7 mm (1.6 in)
1966	66.1 mm (2.6 in)
1967	197.8 mm (7.8 in)
1968	120.6 mm (4.7 in)
1969	138.4 mm (5.4 in)
1970	133.9 mm (5.3 in)
1971	271.8 mm (10.7 in)
1972	144.3 mm (5.7 in)
1973	90.5 mm (3.6 in)
1974	124.8 mm (4.9 in)
1975	33.8 mm (1.3 in)
1976	84.1 mm (3.3 in)
1977	77.6 mm (3.1 in)
1978	50.3 mm (2.0 in)
1979	88.4 mm (3.5 in)
1980	103.1 mm (4.1 in)
1981	62.7 mm (2.5 in)
1982	179.8 mm (7.1 in)
1983	85.9 mm (3.4 in)
1984	111.3 mm (4.4 in)
1985	76.2 mm (3.0 in)
1986	93.5 mm (3.7 in)
1987	28.0 mm (1.1 in)
1988	92.9 mm (3.7 in)
1989	51.1 mm (2.0 in)
1990	61.0 mm (2.4 in)
1991	122.4 mm (4.8 in)
1992	71.5 mm (2.8 in)
1993	128.5 mm (5.1 in)
1994	174.3 mm (6.9 in)
1995	259.6 mm (10.2 in)
1996	38.9 mm (1.5 in)
1997	257.8 mm (10.1 in)
1998	180.3 mm (7.1 in)
1999	269.8 mm (10.6 in)
2000	31.6 mm (1.2 in)
2001	141.0 mm (5.6 in)
2002	74.9 mm (2.9 in)
2003	70.1 mm (2.8 in)
2004	130.6 mm (5.1 in)
2005	95.8 mm (3.8 in)
2006	0.0 mm (0.00 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ahome, 1962 to 2006. The record is 210 days in 1994, marked on the chart; the median year is 126 days.

Longest dry spell (CDD) at Ahome by year
Year	Longest dry spell (CDD)
1962	73 days
1963	184 days
1964	97 days
1965	117 days
1966	144 days
1967	124 days
1968	91 days
1969	146 days
1970	105 days
1971	126 days
1972	182 days
1973	137 days
1974	182 days
1975	151 days
1976	137 days
1977	173 days
1978	125 days
1979	103 days
1980	107 days
1981	85 days
1982	174 days
1983	89 days
1984	156 days
1985	60 days
1986	108 days
1987	206 days
1988	198 days
1989	152 days
1990	109 days
1991	145 days
1992	98 days
1993	122 days
1994	210 days
1995	139 days
1996	183 days
1997	75 days
1998	134 days
1999	111 days
2000	108 days
2001	92 days
2002	153 days
2003	97 days
2004	92 days
2005	170 days
2006	151 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

40 years, 1963 to 2004

A day with at least 68.1 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 214.1 mm (8.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Ahome: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	68.1 mm (2.7 in)
5 years	101.9 mm (4.0 in)
10 years	126.2 mm (5.0 in)
25 years	159.4 mm (6.3 in)
50 years	186.0 mm (7.3 in)	Longer than the 40 years of record
100 years	214.1 mm (8.4 in)	Longer than the 40 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, 40 years of values from 1963 to 2004.

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: 160.8 mm (6.3 in) in 1998; 159.8 mm (6.3 in) in 1999; 147.8 mm (5.8 in) in 1971.

Download the Data

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