Alvarado (Smn) Weather Records (MXN00030009)

Record envelope, standing records and threshold days for Alvarado (Smn) (MXN00030009), Mexico, with 38 years of record.

Key Facts for Alvarado (Smn)

Alvarado (Smn) (MXN00030009) is a weather station in Mexico at 18.77 latitude and -95.75 longitude, 45 m (147 ft) above sea level.
The station reports from 1923 to 1960, 38 years of record.
1,464 records set at Alvarado (Smn) still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 18.77 latitude, -95.75 longitude.
Elevation: 45 m (147 ft).
Period of record: 1923 to 1960, 38 years.
Eligible elements: none yet.

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 Alvarado (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 Alvarado (Smn), 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)	7.8 C (46.0 F)	n/a	n/a
Feb	35.0 C (95.0 F)	10.6 C (51.1 F)	n/a	n/a
Mar	37.2 C (99.0 F)	11.1 C (52.0 F)	n/a	n/a
Apr	38.3 C (100.9 F)	13.9 C (57.0 F)	n/a	n/a
May	40.0 C (104.0 F)	15.0 C (59.0 F)	n/a	n/a
Jun	37.8 C (100.0 F)	17.8 C (64.0 F)	n/a	n/a
Jul	40.0 C (104.0 F)	16.7 C (62.1 F)	n/a	n/a
Aug	40.6 C (105.1 F)	16.7 C (62.1 F)	n/a	n/a
Sep	40.0 C (104.0 F)	17.8 C (64.0 F)	n/a	n/a
Oct	37.8 C (100.0 F)	16.7 C (62.1 F)	n/a	n/a
Nov	36.1 C (97.0 F)	13.3 C (55.9 F)	n/a	n/a
Dec	32.2 C (90.0 F)	11.7 C (53.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Alvarado (Smn) still stand. 1952 holds the most, with 211.

Standing records at Alvarado (Smn) by the year they were set
Year set	Standing records
1923	8
1924	73
1925	70
1926	83
1927	59
1928	69
1929	62
1930	49
1932	71
1933	15
1944	18
1945	1
1946	29
1947	18
1948	46
1949	56
1950	53
1951	27
1952	211
1953	88
1954	63
1955	39
1956	20
1957	33
1958	50
1959	87
1960	66

Wettest Day of Each Month

Sep: 253.5 mm (10.0 in)

The wettest day on record for each calendar month at Alvarado (Smn). The most was 253.5 mm (10.0 in) on 26 September 1954.

Record daily precipitation for each month at Alvarado (Smn)
Month	Record daily precipitation (mm)	Date
Jan	115.8 mm (4.6 in)	16 January 1950
Feb	47.0 mm (1.9 in)	16 February 1950
Mar	63.8 mm (2.5 in)	27 March 1952
Apr	186.9 mm (7.4 in)	20 April 1954
May	91.9 mm (3.6 in)	4 May 1946
Jun	128.8 mm (5.1 in)	4 June 1951
Jul	164.8 mm (6.5 in)	2 July 1954
Aug	204.0 mm (8.0 in)	30 August 1951
Sep	253.5 mm (10.0 in)	26 September 1954
Oct	248.4 mm (9.8 in)	8 October 1926
Nov	140.0 mm (5.5 in)	6 November 1946
Dec	52.6 mm (2.1 in)	10 December 1923

Period of Record Coverage

1923 to 1960

26 years of record at Alvarado (Smn), 1923 to 1960. 9 years have data for under 90 percent of days and are left out of rankings: 1923, 1933, 1944, 1947, 1948, 1950, 1951, 1952 and others.

Days with data per year at Alvarado (Smn)
Year	Days with data	Share of year	Complete
1923	58	16%	No
1924	366	100%	Yes
1925	365	100%	Yes
1926	365	100%	Yes
1927	365	100%	Yes
1928	366	100%	Yes
1929	365	100%	Yes
1930	365	100%	Yes
1932	366	100%	Yes
1933	120	33%	No
1944	31	8%	No
1946	361	99%	Yes
1947	203	56%	No
1948	278	76%	No
1949	360	99%	Yes
1950	302	83%	No
1951	242	66%	No
1952	224	61%	No
1953	258	71%	No
1954	364	100%	Yes
1955	364	100%	Yes
1956	364	99%	Yes
1957	364	100%	Yes
1958	363	99%	Yes
1959	363	99%	Yes
1960	364	99%	Yes

Latest Records

No records were set at this station in the latest data.

Climate Trend

17 complete years, 1924 to 1960

One stripe for each of 17 complete years at Alvarado (Smn), 1924 to 1960. Blue stripes are years cooler than the station's own mean of 25.5 C (78.0 F); red stripes are warmer. The coolest year was 1932, at 23.7 C (74.7 F), and the warmest was 1949, at 27.0 C (80.7 F). The strongest colour marks a difference of 1.9 C (3.4 F).

Annual mean temperature at Alvarado (Smn) as warming stripes, 1924 to 1960
Year	Annual mean temperature	Difference from the station mean
1924	25.5 C	-0.10 C
1925	24.9 C	-0.64 C
1926	26.0 C	+0.48 C
1927	25.5 C	-0.07 C
1928	24.7 C	-0.88 C
1929	24.8 C	-0.80 C
1930	24.9 C	-0.62 C
1932	23.7 C	-1.82 C
1946	26.5 C	+0.91 C
1949	27.0 C	+1.49 C
1954	25.2 C	-0.36 C
1955	25.8 C	+0.20 C
1956	25.5 C	-0.07 C
1957	25.9 C	+0.35 C
1958	25.5 C	-0.07 C
1959	26.5 C	+0.90 C
1960	26.6 C	+1.03 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 1960

Yearly extremes at Alvarado (Smn): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.6 C (105.1 F)	1959	37.2 C (99.0 F)	26
Coldest night (TNn)	7.8 C (46.0 F)	1950	13.9 C (57.0 F)	27
Wettest day (Rx1day)	253.5 mm (10.0 in)	1954	117.3 mm (4.6 in)	27
Wettest five days (Rx5day)	501.7 mm (19.8 in)	1954	229.2 mm (9.0 in)	27
Longest dry spell (CDD)	73 days	1951	37 days	27

Hottest day (TXx)

The hottest day of the year at Alvarado (Smn), 1923 to 1960. The record is 40.6 C (105.1 F) in 1959, marked on the chart; the median year is 37.2 C (99.0 F).

Hottest day (TXx) at Alvarado (Smn) by year
Year	Hottest day (TXx)
1923	30.6 C (87.1 F)
1924	36.7 C (98.1 F)
1925	32.8 C (91.0 F)
1926	38.3 C (100.9 F)
1927	38.3 C (100.9 F)
1928	38.3 C (100.9 F)
1929	36.7 C (98.1 F)
1930	35.0 C (95.0 F)
1932	33.9 C (93.0 F)
1933	35.6 C (96.1 F)
1944	36.7 C (98.1 F)
1945	n/a
1946	36.7 C (98.1 F)
1947	35.6 C (96.1 F)
1948	36.1 C (97.0 F)
1949	37.2 C (99.0 F)
1950	37.2 C (99.0 F)
1951	37.8 C (100.0 F)
1952	37.8 C (100.0 F)
1953	37.2 C (99.0 F)
1954	35.6 C (96.1 F)
1955	38.9 C (102.0 F)
1956	37.2 C (99.0 F)
1957	38.3 C (100.9 F)
1958	38.3 C (100.9 F)
1959	40.6 C (105.1 F)
1960	40.0 C (104.0 F)

Coldest night (TNn)

The coldest night of the year at Alvarado (Smn), 1923 to 1960. The record is 7.8 C (46.0 F) in 1950, marked on the chart; the median year is 13.9 C (57.0 F).

Coldest night (TNn) at Alvarado (Smn) by year
Year	Coldest night (TNn)
1923	15.0 C (59.0 F)
1924	15.0 C (59.0 F)
1925	13.9 C (57.0 F)
1926	13.9 C (57.0 F)
1927	15.0 C (59.0 F)
1928	11.1 C (52.0 F)
1929	11.1 C (52.0 F)
1930	11.1 C (52.0 F)
1932	13.3 C (55.9 F)
1933	12.8 C (55.0 F)
1944	15.6 C (60.1 F)
1945	13.9 C (57.0 F)
1946	13.9 C (57.0 F)
1947	15.0 C (59.0 F)
1948	11.7 C (53.1 F)
1949	13.9 C (57.0 F)
1950	7.8 C (46.0 F)
1951	11.7 C (53.1 F)
1952	16.7 C (62.1 F)
1953	13.9 C (57.0 F)
1954	11.1 C (52.0 F)
1955	13.9 C (57.0 F)
1956	12.2 C (54.0 F)
1957	13.3 C (55.9 F)
1958	12.2 C (54.0 F)
1959	15.6 C (60.1 F)
1960	10.6 C (51.1 F)

Wettest day (Rx1day)

The wettest day of the year at Alvarado (Smn), 1923 to 1960. The record is 253.5 mm (10.0 in) in 1954, marked on the chart; the median year is 117.3 mm (4.6 in).

Wettest day (Rx1day) at Alvarado (Smn) by year
Year	Wettest day (Rx1day)
1923	54.9 mm (2.2 in)
1924	245.4 mm (9.7 in)
1925	195.8 mm (7.7 in)
1926	248.4 mm (9.8 in)
1927	117.3 mm (4.6 in)
1928	152.7 mm (6.0 in)
1929	141.5 mm (5.6 in)
1930	117.6 mm (4.6 in)
1932	126.0 mm (5.0 in)
1933	17.3 mm (0.7 in)
1944	17.8 mm (0.7 in)
1945	11.9 mm (0.5 in)
1946	190.5 mm (7.5 in)
1947	82.3 mm (3.2 in)
1948	83.8 mm (3.3 in)
1949	87.9 mm (3.5 in)
1950	151.9 mm (6.0 in)
1951	204.0 mm (8.0 in)
1952	83.3 mm (3.3 in)
1953	64.8 mm (2.6 in)
1954	253.5 mm (10.0 in)
1955	159.3 mm (6.3 in)
1956	115.3 mm (4.5 in)
1957	76.2 mm (3.0 in)
1958	174.0 mm (6.9 in)
1959	110.0 mm (4.3 in)
1960	99.1 mm (3.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Alvarado (Smn), 1923 to 1960. The record is 501.7 mm (19.8 in) in 1954, marked on the chart; the median year is 229.2 mm (9.0 in).

Wettest five days (Rx5day) at Alvarado (Smn) by year
Year	Wettest five days (Rx5day)
1923	135.1 mm (5.3 in)
1924	277.2 mm (10.9 in)
1925	351.5 mm (13.8 in)
1926	405.9 mm (16.0 in)
1927	346.9 mm (13.7 in)
1928	263.2 mm (10.4 in)
1929	313.4 mm (12.3 in)
1930	224.3 mm (8.8 in)
1932	269.3 mm (10.6 in)
1933	19.6 mm (0.8 in)
1944	48.0 mm (1.9 in)
1945	11.9 mm (0.5 in)
1946	206.8 mm (8.1 in)
1947	204.0 mm (8.0 in)
1948	152.4 mm (6.0 in)
1949	106.5 mm (4.2 in)
1950	287.8 mm (11.3 in)
1951	275.9 mm (10.9 in)
1952	245.4 mm (9.7 in)
1953	94.9 mm (3.7 in)
1954	501.7 mm (19.8 in)
1955	389.4 mm (15.3 in)
1956	229.2 mm (9.0 in)
1957	135.6 mm (5.3 in)
1958	300.6 mm (11.8 in)
1959	168.2 mm (6.6 in)
1960	184.2 mm (7.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Alvarado (Smn), 1923 to 1960. The record is 73 days in 1951, marked on the chart; the median year is 37 days.

Longest dry spell (CDD) at Alvarado (Smn) by year
Year	Longest dry spell (CDD)
1923	9 days
1924	54 days
1925	39 days
1926	42 days
1927	27 days
1928	24 days
1929	37 days
1930	60 days
1932	25 days
1933	41 days
1944	8 days
1945	16 days
1946	32 days
1947	37 days
1948	50 days
1949	57 days
1950	47 days
1951	73 days
1952	49 days
1953	38 days
1954	42 days
1955	27 days
1956	23 days
1957	33 days
1958	34 days
1959	30 days
1960	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 Alvarado (Smn) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Alvarado (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 2026-10-15 (15 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).