Yamonho Weather Records (MXN00007178)

Record envelope, standing records and threshold days for Yamonho (MXN00007178), Mexico, with 36 years of record.

Key Facts for Yamonho

Yamonho (MXN00007178) is a weather station in Mexico at 17.12 latitude and -93.32 longitude, 280 m (918 ft) above sea level.
The station reports from 1967 to 2002, 36 years of record.
1,464 records set at Yamonho still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Yamonho set a daily record low minimum temperature of 11.7 C (53.1 F) on 31 August 2002.

About the Station

Location: Mexico, 17.12 latitude, -93.32 longitude.
Elevation: 280 m (918 ft).
Period of record: 1967 to 2002, 36 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 Yamonho. 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 Yamonho, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	35.6 C (96.1 F)	6.1 C (43.0 F)	n/a	n/a
Feb	37.8 C (100.0 F)	3.9 C (39.0 F)	n/a	n/a
Mar	40.6 C (105.1 F)	5.6 C (42.1 F)	n/a	n/a
Apr	42.2 C (108.0 F)	9.4 C (48.9 F)	n/a	n/a
May	42.8 C (109.0 F)	10.6 C (51.1 F)	n/a	n/a
Jun	41.7 C (107.1 F)	15.0 C (59.0 F)	n/a	n/a
Jul	37.2 C (99.0 F)	15.0 C (59.0 F)	n/a	n/a
Aug	37.2 C (99.0 F)	11.1 C (52.0 F)	n/a	n/a
Sep	36.1 C (97.0 F)	15.6 C (60.1 F)	n/a	n/a
Oct	38.9 C (102.0 F)	11.7 C (53.1 F)	n/a	n/a
Nov	36.1 C (97.0 F)	7.8 C (46.0 F)	n/a	n/a
Dec	35.6 C (96.1 F)	6.1 C (43.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Yamonho still stand. 1999 holds the most, with 93.

Standing records at Yamonho by the year they were set
Year set	Standing records
1969	8
1970	55
1971	42
1972	69
1973	76
1974	37
1975	39
1976	36
1977	41
1978	41
1979	50
1980	44
1981	39
1982	30
1983	61
1984	41
1985	27
1986	26
1987	46
1988	33
1989	23
1990	56
1991	24
1992	26
1993	18
1994	15
1995	42
1996	79
1997	66
1998	38
1999	93
2000	51
2001	29
2002	63

Wettest Day of Each Month

Nov: 317.5 mm (12.5 in)

The wettest day on record for each calendar month at Yamonho. The most was 317.5 mm (12.5 in) on 28 November 1973.

Record daily precipitation for each month at Yamonho
Month	Record daily precipitation (mm)	Date
Jan	188.7 mm (7.4 in)	13 January 1968
Feb	95.5 mm (3.8 in)	7 February 2002
Mar	74.4 mm (2.9 in)	19 March 1971
Apr	120.9 mm (4.8 in)	24 April 1995
May	220.0 mm (8.7 in)	10 May 1981
Jun	129.3 mm (5.1 in)	2 June 1978
Jul	88.4 mm (3.5 in)	12 July 1985
Aug	153.2 mm (6.0 in)	20 August 1973
Sep	194.8 mm (7.7 in)	15 September 1979
Oct	194.1 mm (7.6 in)	10 October 1994
Nov	317.5 mm (12.5 in)	28 November 1973
Dec	292.4 mm (11.5 in)	9 December 1978

Period of Record Coverage

1969 to 2002

34 years of record at Yamonho, 1969 to 2002. 4 years have data for under 90 percent of days and are left out of rankings: 1969, 2000, 2001, 2002.

Days with data per year at Yamonho
Year	Days with data	Share of year	Complete
1969	99	27%	No
1970	364	100%	Yes
1971	360	99%	Yes
1972	365	100%	Yes
1973	364	100%	Yes
1974	364	100%	Yes
1975	364	100%	Yes
1976	366	100%	Yes
1977	364	100%	Yes
1978	362	99%	Yes
1979	365	100%	Yes
1980	365	100%	Yes
1981	365	100%	Yes
1982	334	92%	Yes
1983	333	91%	Yes
1984	366	100%	Yes
1985	364	100%	Yes
1986	364	100%	Yes
1987	356	98%	Yes
1988	364	99%	Yes
1989	332	91%	Yes
1990	364	100%	Yes
1991	365	100%	Yes
1992	365	100%	Yes
1993	365	100%	Yes
1994	345	95%	Yes
1995	365	100%	Yes
1996	366	100%	Yes
1997	365	100%	Yes
1998	335	92%	Yes
1999	362	99%	Yes
2000	321	88%	No
2001	300	82%	No
2002	204	56%	No

Latest Records

Latest records at Yamonho
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 August 2002	Yamonho, MX	daily low min	11.7 C (53.1 F)	5.0 C (9.0 F)	4 years	32 of 100 (Routine)
31 August 2002	Yamonho, MX	monthly low max	19.4 C (66.9 F)	3.4 C (6.1 F)	6 years	29 of 100 (Routine)
30 August 2002	Yamonho, MX	daily low min	11.7 C (53.1 F)	5.0 C (9.0 F)	5 years	32 of 100 (Routine)
29 August 2002	Yamonho, MX	monthly low min	11.1 C (52.0 F)	1.7 C (3.1 F)	0 years	22 of 100 (Routine)
28 August 2002	Yamonho, MX	daily low min	13.3 C (55.9 F)	4.5 C (8.1 F)	25 years	35 of 100 (Notable)
28 August 2002	Yamonho, MX	daily high max	36.1 C (97.0 F)	0.5 C (0.9 F)	24 years	12 of 100 (Routine)
27 August 2002	Yamonho, MX	daily low min	14.4 C (57.9 F)	2.8 C (5.0 F)	5 years	19 of 100 (Routine)
26 August 2002	Yamonho, MX	daily low min	14.4 C (57.9 F)	2.3 C (4.1 F)	5 years	16 of 100 (Routine)
26 August 2002	Yamonho, MX	daily high max	34.4 C (93.9 F)	0.5 C (0.9 F)	27 years	13 of 100 (Routine)
25 August 2002	Yamonho, MX	daily high max	35.6 C (96.1 F)	2.3 C (4.1 F)	32 years	22 of 100 (Routine)
25 August 2002	Yamonho, MX	daily low min	14.4 C (57.9 F)	1.7 C (3.1 F)	1 year	12 of 100 (Routine)
24 August 2002	Yamonho, MX	daily high max	36.7 C (98.1 F)	0.6 C (1.1 F)	29 years	13 of 100 (Routine)
24 August 2002	Yamonho, MX	daily low min	16.1 C (61.0 F)	1.1 C (2.0 F)	1 year	9 of 100 (Routine)
23 August 2002	Yamonho, MX	daily low max	25.0 C (77.0 F)	3.3 C (5.9 F)	28 years	26 of 100 (Routine)
23 August 2002	Yamonho, MX	daily low min (Tie)	16.7 C (62.1 F)	tie	5 years	1 of 100 (Routine)
22 August 2002	Yamonho, MX	daily low min	15.6 C (60.1 F)	1.1 C (2.0 F)	4 years	10 of 100 (Routine)
21 August 2002	Yamonho, MX	monthly low min	12.8 C (55.0 F)	0.5 C (0.9 F)	0 years	15 of 100 (Routine)
20 August 2002	Yamonho, MX	daily high max	36.1 C (97.0 F)	1.1 C (2.0 F)	28 years	16 of 100 (Routine)
19 August 2002	Yamonho, MX	daily high max	36.7 C (98.1 F)	1.7 C (3.1 F)	19 years	15 of 100 (Routine)
19 August 2002	Yamonho, MX	daily low min	16.7 C (62.1 F)	0.5 C (0.9 F)	25 years	12 of 100 (Routine)

Climate Trend

25 complete years, 1970 to 1999

One stripe for each of 25 complete years at Yamonho, 1970 to 1999. Blue stripes are years cooler than the station's own mean of 24.3 C (75.7 F); red stripes are warmer. The coolest year was 1996, at 21.6 C (70.9 F), and the warmest was 1972, at 25.4 C (77.7 F). The strongest colour marks a difference of 2.7 C (4.9 F).

Annual mean temperature at Yamonho as warming stripes, 1970 to 1999
Year	Annual mean temperature	Difference from the station mean
1970	24.2 C	-0.12 C
1971	24.9 C	+0.60 C
1972	25.4 C	+1.08 C
1973	24.9 C	+0.56 C
1974	24.5 C	+0.24 C
1975	24.9 C	+0.57 C
1976	24.2 C	-0.11 C
1977	24.5 C	+0.25 C
1978	24.6 C	+0.35 C
1979	24.6 C	+0.35 C
1980	24.9 C	+0.59 C
1981	25.0 C	+0.67 C
1984	25.1 C	+0.76 C
1985	25.1 C	+0.81 C
1986	24.8 C	+0.54 C
1987	24.5 C	+0.21 C
1988	24.7 C	+0.39 C
1990	24.6 C	+0.34 C
1991	24.6 C	+0.28 C
1992	24.4 C	+0.07 C
1993	24.3 C	-0.03 C
1995	23.3 C	-0.96 C
1996	21.6 C	-2.66 C
1997	22.1 C	-2.22 C
1999	21.8 C	-2.48 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

1967 to 2002

Yearly extremes at Yamonho: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	42.8 C (109.0 F)	1983	40.0 C (104.0 F)	34
Coldest night (TNn)	3.9 C (39.0 F)	1996	9.4 C (48.9 F)	34
Wettest day (Rx1day)	317.5 mm (12.5 in)	1973	152.1 mm (6.0 in)	36
Wettest five days (Rx5day)	476.6 mm (18.8 in)	1986	225.5 mm (8.9 in)	36
Longest dry spell (CDD)	57 days	1998	25 days	36

Hottest day (TXx)

The hottest day of the year at Yamonho, 1967 to 2002. The record is 42.8 C (109.0 F) in 1983, marked on the chart; the median year is 40.0 C (104.0 F).

Hottest day (TXx) at Yamonho by year
Year	Hottest day (TXx)
1967	n/a
1968	n/a
1969	33.9 C (93.0 F)
1970	39.4 C (102.9 F)
1971	40.0 C (104.0 F)
1972	40.0 C (104.0 F)
1973	40.6 C (105.1 F)
1974	39.4 C (102.9 F)
1975	40.0 C (104.0 F)
1976	40.0 C (104.0 F)
1977	38.9 C (102.0 F)
1978	40.0 C (104.0 F)
1979	40.6 C (105.1 F)
1980	40.0 C (104.0 F)
1981	40.0 C (104.0 F)
1982	39.4 C (102.9 F)
1983	42.8 C (109.0 F)
1984	41.1 C (106.0 F)
1985	40.0 C (104.0 F)
1986	40.0 C (104.0 F)
1987	40.6 C (105.1 F)
1988	40.0 C (104.0 F)
1989	37.2 C (99.0 F)
1990	36.7 C (98.1 F)
1991	40.0 C (104.0 F)
1992	41.1 C (106.0 F)
1993	41.7 C (107.1 F)
1994	40.0 C (104.0 F)
1995	41.1 C (106.0 F)
1996	37.2 C (99.0 F)
1997	36.7 C (98.1 F)
1998	40.6 C (105.1 F)
1999	38.9 C (102.0 F)
2000	37.2 C (99.0 F)
2001	37.2 C (99.0 F)
2002	37.2 C (99.0 F)

Coldest night (TNn)

The coldest night of the year at Yamonho, 1967 to 2002. The record is 3.9 C (39.0 F) in 1996, marked on the chart; the median year is 9.4 C (48.9 F).

Coldest night (TNn) at Yamonho by year
Year	Coldest night (TNn)
1967	n/a
1968	n/a
1969	13.9 C (57.0 F)
1970	10.0 C (50.0 F)
1971	7.8 C (46.0 F)
1972	7.2 C (45.0 F)
1973	8.9 C (48.0 F)
1974	11.7 C (53.1 F)
1975	10.0 C (50.0 F)
1976	10.6 C (51.1 F)
1977	9.4 C (48.9 F)
1978	8.9 C (48.0 F)
1979	12.2 C (54.0 F)
1980	10.0 C (50.0 F)
1981	9.4 C (48.9 F)
1982	11.7 C (53.1 F)
1983	7.8 C (46.0 F)
1984	8.9 C (48.0 F)
1985	10.0 C (50.0 F)
1986	10.0 C (50.0 F)
1987	8.9 C (48.0 F)
1988	10.0 C (50.0 F)
1989	7.8 C (46.0 F)
1990	12.8 C (55.0 F)
1991	5.6 C (42.1 F)
1992	10.0 C (50.0 F)
1993	10.6 C (51.1 F)
1994	9.4 C (48.9 F)
1995	10.6 C (51.1 F)
1996	3.9 C (39.0 F)
1997	6.1 C (43.0 F)
1998	5.0 C (41.0 F)
1999	7.2 C (45.0 F)
2000	8.3 C (46.9 F)
2001	6.1 C (43.0 F)
2002	7.8 C (46.0 F)

Wettest day (Rx1day)

The wettest day of the year at Yamonho, 1967 to 2002. The record is 317.5 mm (12.5 in) in 1973, marked on the chart; the median year is 152.1 mm (6.0 in).

Wettest day (Rx1day) at Yamonho by year
Year	Wettest day (Rx1day)
1967	289.8 mm (11.4 in)
1968	188.7 mm (7.4 in)
1969	149.9 mm (5.9 in)
1970	174.0 mm (6.9 in)
1971	78.2 mm (3.1 in)
1972	154.2 mm (6.1 in)
1973	317.5 mm (12.5 in)
1974	173.5 mm (6.8 in)
1975	123.4 mm (4.9 in)
1976	67.6 mm (2.7 in)
1977	100.8 mm (4.0 in)
1978	292.4 mm (11.5 in)
1979	194.8 mm (7.7 in)
1980	78.7 mm (3.1 in)
1981	220.0 mm (8.7 in)
1982	179.8 mm (7.1 in)
1983	56.9 mm (2.2 in)
1984	88.1 mm (3.5 in)
1985	165.9 mm (6.5 in)
1986	199.4 mm (7.9 in)
1987	77.0 mm (3.0 in)
1988	179.8 mm (7.1 in)
1989	179.3 mm (7.1 in)
1990	89.4 mm (3.5 in)
1991	160.5 mm (6.3 in)
1992	162.1 mm (6.4 in)
1993	94.5 mm (3.7 in)
1994	194.1 mm (7.6 in)
1995	125.5 mm (4.9 in)
1996	85.3 mm (3.4 in)
1997	55.4 mm (2.2 in)
1998	90.9 mm (3.6 in)
1999	130.0 mm (5.1 in)
2000	188.0 mm (7.4 in)
2001	74.9 mm (2.9 in)
2002	95.5 mm (3.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Yamonho, 1967 to 2002. The record is 476.6 mm (18.8 in) in 1986, marked on the chart; the median year is 225.5 mm (8.9 in).

Wettest five days (Rx5day) at Yamonho by year
Year	Wettest five days (Rx5day)
1967	349.5 mm (13.8 in)
1968	278.1 mm (10.9 in)
1969	304.6 mm (12.0 in)
1970	289.1 mm (11.4 in)
1971	118.4 mm (4.7 in)
1972	201.5 mm (7.9 in)
1973	333.9 mm (13.1 in)
1974	222.5 mm (8.8 in)
1975	231.4 mm (9.1 in)
1976	133.4 mm (5.3 in)
1977	133.6 mm (5.3 in)
1978	325.4 mm (12.8 in)
1979	301.5 mm (11.9 in)
1980	183.1 mm (7.2 in)
1981	223.8 mm (8.8 in)
1982	237.2 mm (9.3 in)
1983	110.7 mm (4.4 in)
1984	160.2 mm (6.3 in)
1985	227.1 mm (8.9 in)
1986	476.6 mm (18.8 in)
1987	148.6 mm (5.9 in)
1988	274.6 mm (10.8 in)
1989	304.9 mm (12.0 in)
1990	211.9 mm (8.3 in)
1991	185.7 mm (7.3 in)
1992	247.1 mm (9.7 in)
1993	164.4 mm (6.5 in)
1994	325.8 mm (12.8 in)
1995	251.0 mm (9.9 in)
1996	157.1 mm (6.2 in)
1997	204.1 mm (8.0 in)
1998	156.7 mm (6.2 in)
1999	328.4 mm (12.9 in)
2000	372.9 mm (14.7 in)
2001	183.6 mm (7.2 in)
2002	183.6 mm (7.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Yamonho, 1967 to 2002. The record is 57 days in 1998, marked on the chart; the median year is 25 days.

Longest dry spell (CDD) at Yamonho by year
Year	Longest dry spell (CDD)
1967	14 days
1968	13 days
1969	22 days
1970	26 days
1971	42 days
1972	28 days
1973	34 days
1974	34 days
1975	34 days
1976	29 days
1977	33 days
1978	56 days
1979	16 days
1980	24 days
1981	25 days
1982	19 days
1983	22 days
1984	34 days
1985	34 days
1986	32 days
1987	35 days
1988	30 days
1989	19 days
1990	23 days
1991	33 days
1992	17 days
1993	21 days
1994	20 days
1995	27 days
1996	14 days
1997	15 days
1998	57 days
1999	25 days
2000	22 days
2001	23 days
2002	19 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

32 years, 1968 to 1999

A day with at least 136.9 mm (5.4 in) of rain is expected about once in 2 years. A day with at least 327.8 mm (12.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Yamonho: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	136.9 mm (5.4 in)
5 years	194.9 mm (7.7 in)
10 years	230.3 mm (9.1 in)
25 years	272.0 mm (10.7 in)
50 years	300.8 mm (11.8 in)	Longer than the 32 years of record
100 years	327.8 mm (12.9 in)	Longer than the 32 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, 32 years of values from 1968 to 1999.

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: 317.5 mm (12.5 in) in 1973; 292.4 mm (11.5 in) in 1978; 220.0 mm (8.7 in) in 1981.

Download the Data

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