Santiago Weather Records (MXN00019065)

Record envelope, standing records and threshold days for Santiago (MXN00019065), Mexico, with 50 years of record.

Key Facts for Santiago

Santiago (MXN00019065) is a weather station in Mexico at 25.43 latitude and -100.17 longitude, 497 m (1,630 ft) above sea level.
The station reports from 1923 to 1972, 50 years of record.
1,464 records set at Santiago still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Santiago set a daily record precipitation of 23.9 mm (0.9 in) on 8 March 1972.

About the Station

Location: Mexico, 25.43 latitude, -100.17 longitude.
Elevation: 497 m (1,630 ft).
Period of record: 1923 to 1972, 50 years.
Eligible elements: 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. 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, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	32.8 C (91.0 F)	-8.9 C (16.0 F)	n/a	n/a
Feb	39.4 C (102.9 F)	-3.9 C (25.0 F)	n/a	n/a
Mar	41.7 C (107.1 F)	-2.2 C (28.0 F)	n/a	n/a
Apr	42.8 C (109.0 F)	2.8 C (37.0 F)	n/a	n/a
May	44.4 C (111.9 F)	7.8 C (46.0 F)	n/a	n/a
Jun	41.7 C (107.1 F)	10.0 C (50.0 F)	n/a	n/a
Jul	43.3 C (109.9 F)	15.6 C (60.1 F)	n/a	n/a
Aug	42.2 C (108.0 F)	13.3 C (55.9 F)	n/a	n/a
Sep	40.0 C (104.0 F)	10.0 C (50.0 F)	n/a	n/a
Oct	40.0 C (104.0 F)	5.0 C (41.0 F)	n/a	n/a
Nov	36.1 C (97.0 F)	-2.2 C (28.0 F)	n/a	n/a
Dec	36.1 C (97.0 F)	-7.2 C (19.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Santiago still stand. 1927 holds the most, with 109.

Standing records at Santiago by the year they were set
Year set	Standing records
1923	65
1924	81
1925	73
1927	109
1928	93
1929	79
1930	66
1931	56
1932	75
1933	5
1953	8
1954	43
1955	52
1956	35
1957	48
1958	35
1959	33
1960	61
1961	47
1962	41
1963	58
1964	38
1965	31
1966	50
1967	30
1968	33
1969	24
1970	43
1971	41
1972	11

Wettest Day of Each Month

Sep: 332.0 mm (13.1 in)

The wettest day on record for each calendar month at Santiago. The most was 332.0 mm (13.1 in) on 22 September 1967.

Record daily precipitation for each month at Santiago
Month	Record daily precipitation (mm)	Date
Jan	50.8 mm (2.0 in)	15 January 1971
Feb	65.3 mm (2.6 in)	16 February 1957
Mar	40.9 mm (1.6 in)	26 March 1963
Apr	51.8 mm (2.0 in)	13 April 1965
May	98.3 mm (3.9 in)	27 May 1957
Jun	153.7 mm (6.1 in)	9 June 1930
Jul	94.0 mm (3.7 in)	14 July 1970
Aug	265.9 mm (10.5 in)	24 August 1966
Sep	332.0 mm (13.1 in)	22 September 1967
Oct	179.8 mm (7.1 in)	6 October 1954
Nov	98.3 mm (3.9 in)	13 November 1966
Dec	41.9 mm (1.6 in)	4 December 1949

Period of Record Coverage

1923 to 1972

30 years of record at Santiago, 1923 to 1972. 6 years have data for under 90 percent of days and are left out of rankings: 1923, 1933, 1953, 1959, 1969, 1972.

Days with data per year at Santiago
Year	Days with data	Share of year	Complete
1923	296	81%	No
1924	352	96%	Yes
1925	350	96%	Yes
1927	351	96%	Yes
1928	353	96%	Yes
1929	349	96%	Yes
1930	352	96%	Yes
1931	349	96%	Yes
1932	352	96%	Yes
1933	30	8%	No
1953	68	19%	No
1954	365	100%	Yes
1955	354	97%	Yes
1956	363	99%	Yes
1957	362	99%	Yes
1958	363	99%	Yes
1959	297	81%	No
1960	362	99%	Yes
1961	363	99%	Yes
1962	363	99%	Yes
1963	362	99%	Yes
1964	364	99%	Yes
1965	332	91%	Yes
1966	361	99%	Yes
1967	360	99%	Yes
1968	363	99%	Yes
1969	239	65%	No
1970	358	98%	Yes
1971	363	99%	Yes
1972	119	33%	No

Latest Records

Latest records at Santiago
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
8 March 1972	Santiago, MX	daily rain	23.9 mm (0.9 in)	18.8 mm (0.7 in)	40 years	20 of 100 (Routine)
14 January 1972	Santiago, MX	daily rain	3.3 mm (0.13 in)	2.8 mm (0.11 in)	40 years	20 of 100 (Routine)
1 December 1971	Santiago, MX	daily rain	6.1 mm (0.24 in)	0.3 mm (0.01 in)	26 years	12 of 100 (Routine)
3 November 1971	Santiago, MX	daily rain	6.9 mm (0.27 in)	2.1 mm (0.08 in)	18 years	10 of 100 (Routine)
8 October 1971	Santiago, MX	daily rain	37.3 mm (1.5 in)	5.0 mm (0.20 in)	46 years	19 of 100 (Routine)
28 September 1971	Santiago, MX	daily rain	54.9 mm (2.2 in)	39.9 mm (1.6 in)	12 years	19 of 100 (Routine)
18 September 1971	Santiago, MX	daily rain	42.4 mm (1.7 in)	2.5 mm (0.10 in)	17 years	9 of 100 (Routine)
6 August 1971	Santiago, MX	daily rain	30.0 mm (1.2 in)	23.6 mm (0.9 in)	1 year	11 of 100 (Routine)
5 August 1971	Santiago, MX	daily rain	70.9 mm (2.8 in)	46.5 mm (1.8 in)	48 years	33 of 100 (Routine)
24 May 1971	Santiago, MX	daily rain	63.5 mm (2.5 in)	34.0 mm (1.3 in)	18 years	31 of 100 (Routine)
24 April 1971	Santiago, MX	daily rain	17.8 mm (0.7 in)	10.9 mm (0.4 in)	18 years	19 of 100 (Routine)
2 April 1971	Santiago, MX	daily rain (Tie)	0.8 mm (0.03 in)	tie	21 years	2 of 100 (Routine)
15 January 1971	Santiago, MX	monthly rain	50.8 mm (2.0 in)	7.1 mm (0.28 in)	39 years	35 of 100 (Notable)
12 September 1970	Santiago, MX	daily rain	108.5 mm (4.3 in)	45.5 mm (1.8 in)	5 years	18 of 100 (Routine)
14 August 1970	Santiago, MX	daily rain	22.4 mm (0.9 in)	7.4 mm (0.29 in)	9 years	8 of 100 (Routine)
25 July 1970	Santiago, MX	daily rain	21.3 mm (0.8 in)	10.9 mm (0.4 in)	11 years	12 of 100 (Routine)
16 July 1970	Santiago, MX	daily rain	59.4 mm (2.3 in)	21.6 mm (0.9 in)	5 years	15 of 100 (Routine)
14 July 1970	Santiago, MX	monthly rain	94.0 mm (3.7 in)	2.8 mm (0.11 in)	4 years	16 of 100 (Routine)
10 April 1970	Santiago, MX	daily rain	32.3 mm (1.3 in)	26.2 mm (1.0 in)	47 years	44 of 100 (Notable)
20 March 1970	Santiago, MX	daily rain (Tie)	2.0 mm (0.08 in)	tie	45 years	4 of 100 (Routine)

Climate Trend

23 complete years, 1924 to 1971

One stripe for each of 23 complete years at Santiago, 1924 to 1971. Blue stripes are years cooler than the station's own mean of 21.1 C (70.0 F); red stripes are warmer. The coolest year was 1966, at 19.5 C (67.0 F), and the warmest was 1927, at 23.4 C (74.1 F). The strongest colour marks a difference of 2.3 C (4.1 F).

Annual mean temperature at Santiago as warming stripes, 1924 to 1971
Year	Annual mean temperature	Difference from the station mean
1924	21.8 C	+0.67 C
1925	21.8 C	+0.73 C
1927	23.4 C	+2.26 C
1928	21.5 C	+0.34 C
1929	21.3 C	+0.19 C
1930	20.6 C	-0.53 C
1931	20.2 C	-0.92 C
1932	20.7 C	-0.40 C
1954	22.0 C	+0.86 C
1955	21.1 C	-0.05 C
1956	21.4 C	+0.31 C
1957	21.9 C	+0.79 C
1958	20.9 C	-0.26 C
1960	21.0 C	-0.13 C
1961	20.9 C	-0.22 C
1962	21.4 C	+0.24 C
1963	22.0 C	+0.86 C
1964	21.3 C	+0.15 C
1966	19.5 C	-1.66 C
1967	20.1 C	-0.99 C
1968	19.7 C	-1.37 C
1970	19.9 C	-1.21 C
1971	21.4 C	+0.24 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

1923 to 1972

Yearly extremes at Santiago: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	44.4 C (111.9 F)	1927	40.0 C (104.0 F)	30
Coldest night (TNn)	-8.9 C (16.0 F)	1962	-1.1 C (30.0 F)	30
Wettest day (Rx1day)	332.0 mm (13.1 in)	1967	109.0 mm (4.3 in)	37
Wettest five days (Rx5day)	434.9 mm (17.1 in)	1967	167.2 mm (6.6 in)	37
Longest dry spell (CDD)	65 days	1970	39 days	37

Hottest day (TXx)

The hottest day of the year at Santiago, 1923 to 1972. The record is 44.4 C (111.9 F) in 1927, marked on the chart; the median year is 40.0 C (104.0 F).

Hottest day (TXx) at Santiago by year
Year	Hottest day (TXx)
1923	41.1 C (106.0 F)
1924	42.2 C (108.0 F)
1925	43.3 C (109.9 F)
1927	44.4 C (111.9 F)
1928	41.7 C (107.1 F)
1929	40.6 C (105.1 F)
1930	40.0 C (104.0 F)
1931	38.9 C (102.0 F)
1932	40.0 C (104.0 F)
1933	29.4 C (84.9 F)
1944	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	32.8 C (91.0 F)
1954	40.6 C (105.1 F)
1955	41.1 C (106.0 F)
1956	38.9 C (102.0 F)
1957	41.7 C (107.1 F)
1958	40.6 C (105.1 F)
1959	36.7 C (98.1 F)
1960	40.6 C (105.1 F)
1961	38.9 C (102.0 F)
1962	40.0 C (104.0 F)
1963	38.9 C (102.0 F)
1964	38.9 C (102.0 F)
1965	37.8 C (100.0 F)
1966	37.8 C (100.0 F)
1967	38.9 C (102.0 F)
1968	40.6 C (105.1 F)
1969	40.0 C (104.0 F)
1970	37.8 C (100.0 F)
1971	40.0 C (104.0 F)
1972	35.0 C (95.0 F)

Coldest night (TNn)

The coldest night of the year at Santiago, 1923 to 1972. The record is -8.9 C (16.0 F) in 1962, marked on the chart; the median year is -1.1 C (30.0 F).

Coldest night (TNn) at Santiago by year
Year	Coldest night (TNn)
1923	-1.1 C (30.0 F)
1924	-2.2 C (28.0 F)
1925	-4.4 C (24.1 F)
1927	-3.9 C (25.0 F)
1928	-5.0 C (23.0 F)
1929	-7.2 C (19.0 F)
1930	-5.0 C (23.0 F)
1931	-1.1 C (30.0 F)
1932	-2.2 C (28.0 F)
1933	0.0 C (32.0 F)
1944	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	0.0 C (32.0 F)
1954	0.0 C (32.0 F)
1955	0.0 C (32.0 F)
1956	-1.1 C (30.0 F)
1957	0.6 C (33.1 F)
1958	0.0 C (32.0 F)
1959	-1.1 C (30.0 F)
1960	-2.2 C (28.0 F)
1961	-0.6 C (30.9 F)
1962	-8.9 C (16.0 F)
1963	-3.3 C (26.1 F)
1964	0.0 C (32.0 F)
1965	0.0 C (32.0 F)
1966	-3.3 C (26.1 F)
1967	-2.2 C (28.0 F)
1968	0.0 C (32.0 F)
1969	0.0 C (32.0 F)
1970	-1.7 C (28.9 F)
1971	-3.3 C (26.1 F)
1972	0.0 C (32.0 F)

Wettest day (Rx1day)

The wettest day of the year at Santiago, 1923 to 1972. The record is 332.0 mm (13.1 in) in 1967, marked on the chart; the median year is 109.0 mm (4.3 in).

Wettest day (Rx1day) at Santiago by year
Year	Wettest day (Rx1day)
1923	207.3 mm (8.2 in)
1924	136.1 mm (5.4 in)
1925	117.9 mm (4.6 in)
1927	84.8 mm (3.3 in)
1928	112.3 mm (4.4 in)
1929	75.7 mm (3.0 in)
1930	153.7 mm (6.1 in)
1931	76.2 mm (3.0 in)
1932	166.9 mm (6.6 in)
1933	0.8 mm (0.03 in)
1944	5.8 mm (0.23 in)
1947	133.4 mm (5.3 in)
1948	120.4 mm (4.7 in)
1949	67.8 mm (2.7 in)
1950	76.5 mm (3.0 in)
1951	115.8 mm (4.6 in)
1952	85.9 mm (3.4 in)
1953	142.7 mm (5.6 in)
1954	179.8 mm (7.1 in)
1955	89.9 mm (3.5 in)
1956	108.0 mm (4.3 in)
1957	109.0 mm (4.3 in)
1958	156.5 mm (6.2 in)
1959	170.4 mm (6.7 in)
1960	70.9 mm (2.8 in)
1961	110.0 mm (4.3 in)
1962	126.0 mm (5.0 in)
1963	200.4 mm (7.9 in)
1964	82.3 mm (3.2 in)
1965	108.5 mm (4.3 in)
1966	265.9 mm (10.5 in)
1967	332.0 mm (13.1 in)
1968	87.4 mm (3.4 in)
1969	36.8 mm (1.4 in)
1970	108.5 mm (4.3 in)
1971	80.3 mm (3.2 in)
1972	23.9 mm (0.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Santiago, 1923 to 1972. The record is 434.9 mm (17.1 in) in 1967, marked on the chart; the median year is 167.2 mm (6.6 in).

Wettest five days (Rx5day) at Santiago by year
Year	Wettest five days (Rx5day)
1923	322.7 mm (12.7 in)
1924	153.1 mm (6.0 in)
1925	144.3 mm (5.7 in)
1927	163.1 mm (6.4 in)
1928	262.6 mm (10.3 in)
1929	149.9 mm (5.9 in)
1930	265.7 mm (10.5 in)
1931	90.5 mm (3.6 in)
1932	281.4 mm (11.1 in)
1933	1.3 mm (0.05 in)
1944	11.1 mm (0.4 in)
1947	313.3 mm (12.3 in)
1948	217.5 mm (8.6 in)
1949	79.7 mm (3.1 in)
1950	78.6 mm (3.1 in)
1951	235.4 mm (9.3 in)
1952	141.0 mm (5.6 in)
1953	230.6 mm (9.1 in)
1954	231.6 mm (9.1 in)
1955	211.6 mm (8.3 in)
1956	148.9 mm (5.9 in)
1957	204.6 mm (8.1 in)
1958	318.3 mm (12.5 in)
1959	221.0 mm (8.7 in)
1960	137.5 mm (5.4 in)
1961	150.1 mm (5.9 in)
1962	167.2 mm (6.6 in)
1963	241.3 mm (9.5 in)
1964	110.8 mm (4.4 in)
1965	251.2 mm (9.9 in)
1966	299.2 mm (11.8 in)
1967	434.9 mm (17.1 in)
1968	142.1 mm (5.6 in)
1969	100.7 mm (4.0 in)
1970	181.6 mm (7.1 in)
1971	145.0 mm (5.7 in)
1972	25.5 mm (1.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Santiago, 1923 to 1972. The record is 65 days in 1970, marked on the chart; the median year is 39 days.

Longest dry spell (CDD) at Santiago by year
Year	Longest dry spell (CDD)
1923	26 days
1924	48 days
1925	54 days
1927	35 days
1928	53 days
1929	26 days
1930	25 days
1931	25 days
1932	46 days
1933	59 days
1944	27 days
1947	40 days
1948	62 days
1949	33 days
1950	37 days
1951	42 days
1952	33 days
1953	43 days
1954	57 days
1955	51 days
1956	33 days
1957	38 days
1958	31 days
1959	34 days
1960	41 days
1961	48 days
1962	49 days
1963	39 days
1964	31 days
1965	33 days
1966	46 days
1967	38 days
1968	31 days
1969	44 days
1970	65 days
1971	53 days
1972	18 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 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Santiago 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 2026-10-16 (16 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).