Tanhuato (Smn) Weather Records (MXN00016126)

Record envelope, standing records and threshold days for Tanhuato (Smn) (MXN00016126), Mexico, with 61 years of record.

Key Facts for Tanhuato (Smn)

Tanhuato (Smn) (MXN00016126) is a weather station in Mexico at 20.27 latitude and -102.35 longitude, 1,540 m (5,052 ft) above sea level.
The station reports from 1943 to 2003, 61 years of record.
1,464 records set at Tanhuato (Smn) still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Tanhuato (Smn) set a daily record low minimum temperature of 0.6 C (33.1 F) on 31 December 2003.

About the Station

Location: Mexico, 20.27 latitude, -102.35 longitude.
Elevation: 1,540 m (5,052 ft).
Period of record: 1943 to 2003, 61 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 Tanhuato (Smn). 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 Tanhuato (Smn), with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	33.3 C (91.9 F)	-1.1 C (30.0 F)	n/a	n/a
Feb	35.6 C (96.1 F)	0.0 C (32.0 F)	n/a	n/a
Mar	38.9 C (102.0 F)	0.6 C (33.1 F)	n/a	n/a
Apr	43.9 C (111.0 F)	0.6 C (33.1 F)	n/a	n/a
May	43.9 C (111.0 F)	7.8 C (46.0 F)	n/a	n/a
Jun	40.6 C (105.1 F)	6.7 C (44.1 F)	n/a	n/a
Jul	38.3 C (100.9 F)	7.8 C (46.0 F)	n/a	n/a
Aug	39.4 C (102.9 F)	7.8 C (46.0 F)	n/a	n/a
Sep	37.8 C (100.0 F)	5.6 C (42.1 F)	n/a	n/a
Oct	37.8 C (100.0 F)	5.6 C (42.1 F)	n/a	n/a
Nov	37.8 C (100.0 F)	0.6 C (33.1 F)	n/a	n/a
Dec	33.9 C (93.0 F)	-4.4 C (24.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Tanhuato (Smn) still stand. 2003 holds the most, with 308.

Standing records at Tanhuato (Smn) by the year they were set
Year set	Standing records
1943	9
1944	21
1945	21
1946	10
1947	17
1948	16
1949	16
1950	59
1951	67
1952	18
1953	6
1954	75
1955	23
1956	43
1957	59
1958	64
1959	27
1960	34
1961	25
1962	28
1963	42
1964	26
1965	28
1966	30
1967	15
1968	21
1969	33
1970	26
1971	21
1972	26
1973	29
1974	5
1977	195
1978	21
2003	308

All-Time Record Progression

1 new records

1 all-time records were set at Tanhuato (Smn) between 9 December 2003 and 9 December 2003. Each dot is a new record.

Wettest Day of Each Month

Aug: 90.9 mm (3.6 in)

The wettest day on record for each calendar month at Tanhuato (Smn). The most was 90.9 mm (3.6 in) on 15 August 1973.

Record daily precipitation for each month at Tanhuato (Smn)
Month	Record daily precipitation (mm)	Date
Jan	29.5 mm (1.2 in)	28 January 1948
Feb	19.8 mm (0.8 in)	16 February 1957
Mar	9.9 mm (0.39 in)	2 March 1968
Apr	34.8 mm (1.4 in)	15 April 1959
May	41.9 mm (1.6 in)	15 May 1948
Jun	89.9 mm (3.5 in)	20 June 1962
Jul	64.8 mm (2.6 in)	14 July 1973
Aug	90.9 mm (3.6 in)	15 August 1973
Sep	65.8 mm (2.6 in)	17 September 1973
Oct	47.8 mm (1.9 in)	16 October 1946
Nov	28.7 mm (1.1 in)	13 November 1947
Dec	36.3 mm (1.4 in)	15 December 1963

Period of Record Coverage

1943 to 2003

35 years of record at Tanhuato (Smn), 1943 to 2003. 11 years have data for under 90 percent of days and are left out of rankings: 1943, 1944, 1949, 1952, 1953, 1954, 1955, 1974 and others.

Days with data per year at Tanhuato (Smn)
Year	Days with data	Share of year	Complete
1943	173	47%	No
1944	215	59%	No
1945	365	100%	Yes
1946	365	100%	Yes
1947	364	100%	Yes
1948	366	100%	Yes
1949	314	86%	No
1950	365	100%	Yes
1951	363	99%	Yes
1952	246	67%	No
1953	30	8%	No
1954	142	39%	No
1955	275	75%	No
1956	366	100%	Yes
1957	365	100%	Yes
1958	364	100%	Yes
1959	365	100%	Yes
1960	366	100%	Yes
1961	363	99%	Yes
1962	362	99%	Yes
1963	363	99%	Yes
1964	362	99%	Yes
1965	363	99%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	365	100%	Yes
1969	365	100%	Yes
1970	363	99%	Yes
1971	364	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	75	21%	No
1977	319	87%	No
1978	151	41%	No
2003	275	75%	No

Latest Records

Latest records at Tanhuato (Smn)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 December 2003	Tanhuato (Smn), MX	daily low min	0.6 C (33.1 F)	3.3 C (5.9 F)	52 years	32 of 100 (Routine)
30 December 2003	Tanhuato (Smn), MX	daily low min	0.0 C (32.0 F)	3.9 C (7.0 F)	25 years	26 of 100 (Routine)
29 December 2003	Tanhuato (Smn), MX	daily low min	0.6 C (33.1 F)	2.2 C (4.0 F)	25 years	20 of 100 (Routine)
28 December 2003	Tanhuato (Smn), MX	daily low min	0.6 C (33.1 F)	1.1 C (2.0 F)	25 years	16 of 100 (Routine)
27 December 2003	Tanhuato (Smn), MX	daily low min	0.0 C (32.0 F)	1.7 C (3.1 F)	25 years	18 of 100 (Routine)
26 December 2003	Tanhuato (Smn), MX	daily low min	0.0 C (32.0 F)	0.6 C (1.1 F)	25 years	15 of 100 (Routine)
25 December 2003	Tanhuato (Smn), MX	daily low min	1.7 C (35.1 F)	4.4 C (7.9 F)	40 years	33 of 100 (Routine)
23 December 2003	Tanhuato (Smn), MX	daily low min	0.6 C (33.1 F)	2.2 C (4.0 F)	25 years	20 of 100 (Routine)
22 December 2003	Tanhuato (Smn), MX	daily low min	0.0 C (32.0 F)	0.6 C (1.1 F)	25 years	15 of 100 (Routine)
21 December 2003	Tanhuato (Smn), MX	daily low min	1.1 C (34.0 F)	0.6 C (1.1 F)	25 years	15 of 100 (Routine)
20 December 2003	Tanhuato (Smn), MX	daily low min	0.0 C (32.0 F)	0.6 C (1.1 F)	25 years	15 of 100 (Routine)
19 December 2003	Tanhuato (Smn), MX	daily low min	0.6 C (33.1 F)	1.1 C (2.0 F)	25 years	16 of 100 (Routine)
18 December 2003	Tanhuato (Smn), MX	daily low min (Tie)	0.6 C (33.1 F)	tie	25 years	3 of 100 (Routine)
17 December 2003	Tanhuato (Smn), MX	daily low min	0.6 C (33.1 F)	2.2 C (4.0 F)	25 years	20 of 100 (Routine)
16 December 2003	Tanhuato (Smn), MX	daily low min (Tie)	0.6 C (33.1 F)	tie	25 years	3 of 100 (Routine)
15 December 2003	Tanhuato (Smn), MX	daily low min	0.0 C (32.0 F)	1.7 C (3.1 F)	25 years	18 of 100 (Routine)
14 December 2003	Tanhuato (Smn), MX	daily low min	0.0 C (32.0 F)	2.8 C (5.0 F)	25 years	22 of 100 (Routine)
13 December 2003	Tanhuato (Smn), MX	daily low min	0.0 C (32.0 F)	2.2 C (4.0 F)	52 years	28 of 100 (Routine)
12 December 2003	Tanhuato (Smn), MX	daily low min	0.0 C (32.0 F)	5.0 C (9.0 F)	38 years	34 of 100 (Routine)
11 December 2003	Tanhuato (Smn), MX	daily low min	0.6 C (33.1 F)	1.1 C (2.0 F)	25 years	16 of 100 (Routine)

Climate Trend

24 complete years, 1945 to 1973

One stripe for each of 24 complete years at Tanhuato (Smn), 1945 to 1973. Blue stripes are years cooler than the station's own mean of 21.7 C (71.1 F); red stripes are warmer. The coolest year was 1950, at 20.7 C (69.3 F), and the warmest was 1972, at 22.5 C (72.6 F). The strongest colour marks a difference of 1.0 C (1.8 F).

Annual mean temperature at Tanhuato (Smn) as warming stripes, 1945 to 1973
Year	Annual mean temperature	Difference from the station mean
1945	21.4 C	-0.28 C
1946	21.1 C	-0.58 C
1947	20.8 C	-0.89 C
1948	20.9 C	-0.79 C
1950	20.7 C	-0.99 C
1951	21.6 C	-0.09 C
1956	22.3 C	+0.62 C
1957	22.4 C	+0.70 C
1958	21.9 C	+0.22 C
1959	21.8 C	+0.06 C
1960	22.0 C	+0.33 C
1961	21.7 C	+0.03 C
1962	22.0 C	+0.27 C
1963	21.5 C	-0.20 C
1964	21.7 C	0.00 C
1965	22.0 C	+0.25 C
1966	21.6 C	-0.13 C
1967	21.6 C	-0.12 C
1968	21.6 C	-0.09 C
1969	22.4 C	+0.65 C
1970	21.7 C	0.00 C
1971	21.7 C	-0.06 C
1972	22.5 C	+0.83 C
1973	22.0 C	+0.31 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

1943 to 2003

Yearly extremes at Tanhuato (Smn): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	43.9 C (111.0 F)	2003	37.8 C (100.0 F)	35
Coldest night (TNn)	-4.4 C (24.1 F)	2003	3.3 C (37.9 F)	35
Wettest day (Rx1day)	90.9 mm (3.6 in)	1973	50.3 mm (2.0 in)	35
Wettest five days (Rx5day)	244.4 mm (9.6 in)	1977	98.8 mm (3.9 in)	35
Longest dry spell (CDD)	156 days	1945	75 days	35

Hottest day (TXx)

The hottest day of the year at Tanhuato (Smn), 1943 to 2003. The record is 43.9 C (111.0 F) in 2003, marked on the chart; the median year is 37.8 C (100.0 F).

Hottest day (TXx) at Tanhuato (Smn) by year
Year	Hottest day (TXx)
1943	35.0 C (95.0 F)
1944	35.6 C (96.1 F)
1945	38.9 C (102.0 F)
1946	37.2 C (99.0 F)
1947	35.0 C (95.0 F)
1948	38.9 C (102.0 F)
1949	35.0 C (95.0 F)
1950	39.4 C (102.9 F)
1951	38.3 C (100.9 F)
1952	37.8 C (100.0 F)
1953	35.0 C (95.0 F)
1954	37.8 C (100.0 F)
1955	39.4 C (102.9 F)
1956	38.3 C (100.9 F)
1957	37.8 C (100.0 F)
1958	36.7 C (98.1 F)
1959	38.9 C (102.0 F)
1960	37.8 C (100.0 F)
1961	37.2 C (99.0 F)
1962	36.1 C (97.0 F)
1963	35.6 C (96.1 F)
1964	37.8 C (100.0 F)
1965	38.3 C (100.9 F)
1966	37.2 C (99.0 F)
1967	40.0 C (104.0 F)
1968	37.8 C (100.0 F)
1969	39.4 C (102.9 F)
1970	37.2 C (99.0 F)
1971	36.7 C (98.1 F)
1972	37.8 C (100.0 F)
1973	38.9 C (102.0 F)
1974	33.9 C (93.0 F)
1977	37.8 C (100.0 F)
1978	37.8 C (100.0 F)
2003	43.9 C (111.0 F)

Coldest night (TNn)

The coldest night of the year at Tanhuato (Smn), 1943 to 2003. The record is -4.4 C (24.1 F) in 2003, marked on the chart; the median year is 3.3 C (37.9 F).

Coldest night (TNn) at Tanhuato (Smn) by year
Year	Coldest night (TNn)
1943	5.0 C (41.0 F)
1944	2.8 C (37.0 F)
1945	5.0 C (41.0 F)
1946	3.3 C (37.9 F)
1947	3.9 C (39.0 F)
1948	2.8 C (37.0 F)
1949	2.8 C (37.0 F)
1950	1.7 C (35.1 F)
1951	1.1 C (34.0 F)
1952	4.4 C (39.9 F)
1953	7.8 C (46.0 F)
1954	6.7 C (44.1 F)
1955	5.6 C (42.1 F)
1956	2.8 C (37.0 F)
1957	0.6 C (33.1 F)
1958	5.0 C (41.0 F)
1959	4.4 C (39.9 F)
1960	3.9 C (39.0 F)
1961	5.6 C (42.1 F)
1962	2.8 C (37.0 F)
1963	0.0 C (32.0 F)
1964	5.0 C (41.0 F)
1965	3.9 C (39.0 F)
1966	2.8 C (37.0 F)
1967	1.7 C (35.1 F)
1968	5.0 C (41.0 F)
1969	3.9 C (39.0 F)
1970	2.2 C (36.0 F)
1971	5.0 C (41.0 F)
1972	5.0 C (41.0 F)
1973	1.7 C (35.1 F)
1974	2.8 C (37.0 F)
1977	-2.2 C (28.0 F)
1978	-1.1 C (30.0 F)
2003	-4.4 C (24.1 F)

Wettest day (Rx1day)

The wettest day of the year at Tanhuato (Smn), 1943 to 2003. The record is 90.9 mm (3.6 in) in 1973, marked on the chart; the median year is 50.3 mm (2.0 in).

Wettest day (Rx1day) at Tanhuato (Smn) by year
Year	Wettest day (Rx1day)
1943	47.0 mm (1.9 in)
1944	62.0 mm (2.4 in)
1945	32.8 mm (1.3 in)
1946	48.8 mm (1.9 in)
1947	64.8 mm (2.6 in)
1948	50.3 mm (2.0 in)
1949	50.3 mm (2.0 in)
1950	14.0 mm (0.6 in)
1951	27.9 mm (1.1 in)
1952	87.4 mm (3.4 in)
1953	44.5 mm (1.8 in)
1954	45.0 mm (1.8 in)
1955	49.3 mm (1.9 in)
1956	45.0 mm (1.8 in)
1957	39.9 mm (1.6 in)
1958	49.8 mm (2.0 in)
1959	56.4 mm (2.2 in)
1960	39.9 mm (1.6 in)
1961	67.8 mm (2.7 in)
1962	89.9 mm (3.5 in)
1963	51.8 mm (2.0 in)
1964	42.9 mm (1.7 in)
1965	54.9 mm (2.2 in)
1966	56.4 mm (2.2 in)
1967	52.3 mm (2.1 in)
1968	64.8 mm (2.6 in)
1969	51.8 mm (2.0 in)
1970	59.9 mm (2.4 in)
1971	63.0 mm (2.5 in)
1972	39.9 mm (1.6 in)
1973	90.9 mm (3.6 in)
1974	0.0 mm (0.00 in)
1977	59.9 mm (2.4 in)
1978	15.0 mm (0.6 in)
2003	23.9 mm (0.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Tanhuato (Smn), 1943 to 2003. The record is 244.4 mm (9.6 in) in 1977, marked on the chart; the median year is 98.8 mm (3.9 in).

Wettest five days (Rx5day) at Tanhuato (Smn) by year
Year	Wettest five days (Rx5day)
1943	111.1 mm (4.4 in)
1944	89.0 mm (3.5 in)
1945	85.8 mm (3.4 in)
1946	78.8 mm (3.1 in)
1947	158.8 mm (6.3 in)
1948	101.9 mm (4.0 in)
1949	76.5 mm (3.0 in)
1950	48.0 mm (1.9 in)
1951	32.0 mm (1.3 in)
1952	143.0 mm (5.6 in)
1953	133.5 mm (5.3 in)
1954	82.8 mm (3.3 in)
1955	124.7 mm (4.9 in)
1956	97.3 mm (3.8 in)
1957	76.0 mm (3.0 in)
1958	100.1 mm (3.9 in)
1959	120.2 mm (4.7 in)
1960	97.6 mm (3.8 in)
1961	105.4 mm (4.1 in)
1962	171.3 mm (6.7 in)
1963	95.6 mm (3.8 in)
1964	128.8 mm (5.1 in)
1965	173.5 mm (6.8 in)
1966	83.8 mm (3.3 in)
1967	94.8 mm (3.7 in)
1968	114.9 mm (4.5 in)
1969	109.8 mm (4.3 in)
1970	131.6 mm (5.2 in)
1971	98.8 mm (3.9 in)
1972	88.5 mm (3.5 in)
1973	135.4 mm (5.3 in)
1974	0.0 mm (0.00 in)
1977	244.4 mm (9.6 in)
1978	37.6 mm (1.5 in)
2003	68.9 mm (2.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Tanhuato (Smn), 1943 to 2003. The record is 156 days in 1945, marked on the chart; the median year is 75 days.

Longest dry spell (CDD) at Tanhuato (Smn) by year
Year	Longest dry spell (CDD)
1943	29 days
1944	40 days
1945	156 days
1946	110 days
1947	56 days
1948	51 days
1949	90 days
1950	151 days
1951	136 days
1952	62 days
1953	53 days
1954	82 days
1955	54 days
1956	37 days
1957	100 days
1958	30 days
1959	66 days
1960	118 days
1961	88 days
1962	102 days
1963	58 days
1964	95 days
1965	58 days
1966	30 days
1967	75 days
1968	55 days
1969	102 days
1970	83 days
1971	134 days
1972	64 days
1973	50 days
1974	76 days
1977	99 days
1978	76 days
2003	69 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 Tanhuato (Smn) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Tanhuato (Smn) 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).