Santiago Yosondua Weather Records (MXN00020186)

Record envelope, standing records and threshold days for Santiago Yosondua (MXN00020186), Mexico, with 35 years of record.

Key Facts for Santiago Yosondua

Santiago Yosondua (MXN00020186) is a weather station in Mexico at 16.88 latitude and -97.58 longitude, 2,222 m (7,290 ft) above sea level.
The station reports from 1957 to 1991, 35 years of record.
1,464 records set at Santiago Yosondua still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Santiago Yosondua set a daily record high minimum temperature of 10.6 C (51.1 F) on 6 February 1991.

About the Station

Location: Mexico, 16.88 latitude, -97.58 longitude.
Elevation: 2,222 m (7,290 ft).
Period of record: 1957 to 1991, 35 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 Santiago Yosondua. 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 Santiago Yosondua, 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)	0.0 C (32.0 F)	n/a	n/a
Feb	30.0 C (86.0 F)	-5.0 C (23.0 F)	n/a	n/a
Mar	32.2 C (90.0 F)	0.0 C (32.0 F)	n/a	n/a
Apr	28.9 C (84.0 F)	3.3 C (37.9 F)	n/a	n/a
May	33.3 C (91.9 F)	1.1 C (34.0 F)	n/a	n/a
Jun	35.0 C (95.0 F)	6.7 C (44.1 F)	n/a	n/a
Jul	28.3 C (82.9 F)	5.0 C (41.0 F)	n/a	n/a
Aug	27.2 C (81.0 F)	6.7 C (44.1 F)	n/a	n/a
Sep	27.8 C (82.0 F)	2.8 C (37.0 F)	n/a	n/a
Oct	27.8 C (82.0 F)	3.3 C (37.9 F)	n/a	n/a
Nov	30.0 C (86.0 F)	0.0 C (32.0 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 Santiago Yosondua still stand. 1983 holds the most, with 268.

Standing records at Santiago Yosondua by the year they were set
Year set	Standing records
1957	13
1958	25
1959	36
1960	33
1961	40
1962	32
1963	28
1964	19
1965	32
1966	36
1967	29
1968	45
1969	27
1970	28
1971	37
1972	25
1973	25
1974	47
1975	39
1976	24
1977	30
1978	26
1979	31
1980	21
1981	21
1982	132
1983	268
1984	209
1985	14
1986	49
1987	30
1988	7
1991	6

Wettest Day of Each Month

Jun: 187.5 mm (7.4 in)

The wettest day on record for each calendar month at Santiago Yosondua. The most was 187.5 mm (7.4 in) on 13 June 1987.

Record daily precipitation for each month at Santiago Yosondua
Month	Record daily precipitation (mm)	Date
Jan	53.1 mm (2.1 in)	25 January 1980
Feb	45.2 mm (1.8 in)	24 February 1958
Mar	30.0 mm (1.2 in)	13 March 1966
Apr	111.3 mm (4.4 in)	11 April 1968
May	54.9 mm (2.2 in)	30 May 1978
Jun	187.5 mm (7.4 in)	13 June 1987
Jul	65.3 mm (2.6 in)	25 July 1963
Aug	96.8 mm (3.8 in)	25 August 1979
Sep	73.4 mm (2.9 in)	21 September 1974
Oct	77.5 mm (3.1 in)	10 October 1973
Nov	26.9 mm (1.1 in)	3 November 1958
Dec	20.8 mm (0.8 in)	2 December 1977

Period of Record Coverage

1957 to 1991

33 years of record at Santiago Yosondua, 1957 to 1991. 7 years have data for under 90 percent of days and are left out of rankings: 1957, 1982, 1983, 1984, 1985, 1986, 1991.

Days with data per year at Santiago Yosondua
Year	Days with data	Share of year	Complete
1957	156	43%	No
1958	365	100%	Yes
1959	362	99%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	363	99%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	361	99%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	365	100%	Yes
1973	365	100%	Yes
1974	364	100%	Yes
1975	365	100%	Yes
1976	365	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	364	100%	Yes
1980	365	100%	Yes
1981	365	100%	Yes
1982	199	55%	No
1983	231	63%	No
1984	261	71%	No
1985	62	17%	No
1986	223	61%	No
1987	364	100%	Yes
1988	366	100%	Yes
1991	59	16%	No

Latest Records

Latest records at Santiago Yosondua
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
6 February 1991	Santiago Yosondua, MX	daily high min	10.6 C (51.1 F)	2.3 C (4.1 F)	32 years	19 of 100 (Routine)
29 January 1991	Santiago Yosondua, MX	daily high min	10.0 C (50.0 F)	1.1 C (2.0 F)	24 years	14 of 100 (Routine)
4 January 1991	Santiago Yosondua, MX	daily high min	11.7 C (53.1 F)	3.4 C (6.1 F)	27 years	24 of 100 (Routine)
3 January 1991	Santiago Yosondua, MX	daily high min	10.6 C (51.1 F)	1.2 C (2.2 F)	31 years	16 of 100 (Routine)
2 January 1991	Santiago Yosondua, MX	daily high min	10.0 C (50.0 F)	0.6 C (1.1 F)	32 years	14 of 100 (Routine)
1 January 1991	Santiago Yosondua, MX	daily high min	8.9 C (48.0 F)	0.6 C (1.1 F)	21 years	11 of 100 (Routine)

Climate Trend

26 complete years, 1958 to 1988

One stripe for each of 26 complete years at Santiago Yosondua, 1958 to 1988. Blue stripes are years cooler than the station's own mean of 14.6 C (58.3 F); red stripes are warmer. The coolest year was 1975, at 14.1 C (57.5 F), and the warmest was 1988, at 15.3 C (59.5 F). The strongest colour marks a difference of 0.7 C (1.3 F).

Annual mean temperature at Santiago Yosondua as warming stripes, 1958 to 1988
Year	Annual mean temperature	Difference from the station mean
1958	14.9 C	+0.30 C
1959	14.8 C	+0.17 C
1960	14.9 C	+0.23 C
1961	14.6 C	0.00 C
1962	14.8 C	+0.13 C
1963	14.7 C	+0.10 C
1964	14.8 C	+0.16 C
1965	14.7 C	+0.04 C
1966	14.5 C	-0.12 C
1967	14.5 C	-0.17 C
1968	14.2 C	-0.43 C
1969	15.0 C	+0.34 C
1970	14.5 C	-0.10 C
1971	14.3 C	-0.35 C
1972	14.9 C	+0.24 C
1973	14.8 C	+0.16 C
1974	14.2 C	-0.47 C
1975	14.1 C	-0.49 C
1976	14.2 C	-0.45 C
1977	14.5 C	-0.13 C
1978	14.7 C	+0.03 C
1979	14.6 C	-0.04 C
1980	14.7 C	+0.04 C
1981	14.6 C	-0.01 C
1987	14.9 C	+0.28 C
1988	15.3 C	+0.63 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

1957 to 1991

Yearly extremes at Santiago Yosondua: 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)	1982	26.1 C (79.0 F)	33
Coldest night (TNn)	-5.0 C (23.0 F)	1976	1.1 C (34.0 F)	33
Wettest day (Rx1day)	187.5 mm (7.4 in)	1987	53.8 mm (2.1 in)	33
Wettest five days (Rx5day)	438.9 mm (17.3 in)	1974	112.1 mm (4.4 in)	33
Longest dry spell (CDD)	152 days	1988	62 days	33

Hottest day (TXx)

The hottest day of the year at Santiago Yosondua, 1957 to 1991. The record is 35.0 C (95.0 F) in 1982, marked on the chart; the median year is 26.1 C (79.0 F).

Hottest day (TXx) at Santiago Yosondua by year
Year	Hottest day (TXx)
1957	23.3 C (73.9 F)
1958	26.7 C (80.1 F)
1959	25.0 C (77.0 F)
1960	32.8 C (91.0 F)
1961	26.1 C (79.0 F)
1962	25.0 C (77.0 F)
1963	26.7 C (80.1 F)
1964	25.6 C (78.1 F)
1965	25.0 C (77.0 F)
1966	24.4 C (75.9 F)
1967	25.0 C (77.0 F)
1968	25.0 C (77.0 F)
1969	25.6 C (78.1 F)
1970	25.6 C (78.1 F)
1971	26.7 C (80.1 F)
1972	26.7 C (80.1 F)
1973	25.0 C (77.0 F)
1974	26.1 C (79.0 F)
1975	25.0 C (77.0 F)
1976	25.0 C (77.0 F)
1977	26.1 C (79.0 F)
1978	26.1 C (79.0 F)
1979	28.3 C (82.9 F)
1980	25.0 C (77.0 F)
1981	27.8 C (82.0 F)
1982	35.0 C (95.0 F)
1983	31.7 C (89.1 F)
1984	33.3 C (91.9 F)
1985	30.0 C (86.0 F)
1986	32.8 C (91.0 F)
1987	30.0 C (86.0 F)
1988	25.6 C (78.1 F)
1991	22.2 C (72.0 F)

Coldest night (TNn)

The coldest night of the year at Santiago Yosondua, 1957 to 1991. The record is -5.0 C (23.0 F) in 1976, marked on the chart; the median year is 1.1 C (34.0 F).

Coldest night (TNn) at Santiago Yosondua by year
Year	Coldest night (TNn)
1957	1.7 C (35.1 F)
1958	2.8 C (37.0 F)
1959	0.0 C (32.0 F)
1960	1.7 C (35.1 F)
1961	-0.6 C (30.9 F)
1962	1.7 C (35.1 F)
1963	0.6 C (33.1 F)
1964	3.9 C (39.0 F)
1965	0.6 C (33.1 F)
1966	0.6 C (33.1 F)
1967	0.0 C (32.0 F)
1968	0.6 C (33.1 F)
1969	1.7 C (35.1 F)
1970	0.0 C (32.0 F)
1971	2.8 C (37.0 F)
1972	0.0 C (32.0 F)
1973	0.6 C (33.1 F)
1974	0.0 C (32.0 F)
1975	0.6 C (33.1 F)
1976	-5.0 C (23.0 F)
1977	2.8 C (37.0 F)
1978	1.7 C (35.1 F)
1979	1.1 C (34.0 F)
1980	0.6 C (33.1 F)
1981	0.6 C (33.1 F)
1982	3.9 C (39.0 F)
1983	12.2 C (54.0 F)
1984	6.7 C (44.1 F)
1985	5.6 C (42.1 F)
1986	3.9 C (39.0 F)
1987	0.6 C (33.1 F)
1988	3.9 C (39.0 F)
1991	5.0 C (41.0 F)

Wettest day (Rx1day)

The wettest day of the year at Santiago Yosondua, 1957 to 1991. The record is 187.5 mm (7.4 in) in 1987, marked on the chart; the median year is 53.8 mm (2.1 in).

Wettest day (Rx1day) at Santiago Yosondua by year
Year	Wettest day (Rx1day)
1957	55.4 mm (2.2 in)
1958	57.9 mm (2.3 in)
1959	45.5 mm (1.8 in)
1960	52.3 mm (2.1 in)
1961	86.4 mm (3.4 in)
1962	39.9 mm (1.6 in)
1963	65.3 mm (2.6 in)
1964	100.6 mm (4.0 in)
1965	69.3 mm (2.7 in)
1966	50.5 mm (2.0 in)
1967	52.6 mm (2.1 in)
1968	111.3 mm (4.4 in)
1969	37.3 mm (1.5 in)
1970	53.8 mm (2.1 in)
1971	55.4 mm (2.2 in)
1972	42.4 mm (1.7 in)
1973	77.5 mm (3.1 in)
1974	178.8 mm (7.0 in)
1975	48.3 mm (1.9 in)
1976	45.5 mm (1.8 in)
1977	59.7 mm (2.4 in)
1978	54.9 mm (2.2 in)
1979	96.8 mm (3.8 in)
1980	53.1 mm (2.1 in)
1981	80.3 mm (3.2 in)
1982	34.8 mm (1.4 in)
1983	35.8 mm (1.4 in)
1984	39.9 mm (1.6 in)
1985	19.3 mm (0.8 in)
1986	21.8 mm (0.9 in)
1987	187.5 mm (7.4 in)
1988	59.9 mm (2.4 in)
1991	0.0 mm (0.00 in)

Wettest five days (Rx5day)

The wettest five days of the year at Santiago Yosondua, 1957 to 1991. The record is 438.9 mm (17.3 in) in 1974, marked on the chart; the median year is 112.1 mm (4.4 in).

Wettest five days (Rx5day) at Santiago Yosondua by year
Year	Wettest five days (Rx5day)
1957	95.3 mm (3.8 in)
1958	102.4 mm (4.0 in)
1959	107.1 mm (4.2 in)
1960	126.5 mm (5.0 in)
1961	182.7 mm (7.2 in)
1962	112.1 mm (4.4 in)
1963	147.2 mm (5.8 in)
1964	228.7 mm (9.0 in)
1965	119.1 mm (4.7 in)
1966	87.7 mm (3.5 in)
1967	203.5 mm (8.0 in)
1968	144.4 mm (5.7 in)
1969	107.9 mm (4.2 in)
1970	110.8 mm (4.4 in)
1971	97.3 mm (3.8 in)
1972	121.2 mm (4.8 in)
1973	152.5 mm (6.0 in)
1974	438.9 mm (17.3 in)
1975	103.1 mm (4.1 in)
1976	74.0 mm (2.9 in)
1977	124.2 mm (4.9 in)
1978	97.4 mm (3.8 in)
1979	212.4 mm (8.4 in)
1980	97.6 mm (3.8 in)
1981	166.2 mm (6.5 in)
1982	87.9 mm (3.5 in)
1983	43.5 mm (1.7 in)
1984	112.9 mm (4.4 in)
1985	20.1 mm (0.8 in)
1986	61.5 mm (2.4 in)
1987	298.8 mm (11.8 in)
1988	191.6 mm (7.5 in)
1991	0.0 mm (0.00 in)

Longest dry spell (CDD)

The longest dry spell of the year at Santiago Yosondua, 1957 to 1991. The record is 152 days in 1988, marked on the chart; the median year is 62 days.

Longest dry spell (CDD) at Santiago Yosondua by year
Year	Longest dry spell (CDD)
1957	33 days
1958	57 days
1959	39 days
1960	127 days
1961	37 days
1962	104 days
1963	64 days
1964	65 days
1965	72 days
1966	56 days
1967	80 days
1968	29 days
1969	62 days
1970	46 days
1971	72 days
1972	41 days
1973	57 days
1974	64 days
1975	82 days
1976	56 days
1977	65 days
1978	44 days
1979	43 days
1980	44 days
1981	29 days
1982	76 days
1983	80 days
1984	100 days
1985	31 days
1986	65 days
1987	79 days
1988	152 days
1991	59 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 Santiago Yosondua standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Santiago Yosondua 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).