Santa Ana (Smn) Weather Records (MXN00026134)

Record envelope, standing records and threshold days for Santa Ana (Smn) (MXN00026134), Mexico, with 39 years of record.

Key Facts for Santa Ana (Smn)

Santa Ana (Smn) (MXN00026134) is a weather station in Mexico at 30.53 latitude and -111.10 longitude, 702 m (2,303 ft) above sea level.
The station reports from 1931 to 1969, 39 years of record.
1,464 records set at Santa Ana (Smn) still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Santa Ana (Smn) set a daily record precipitation of 37.8 mm (1.5 in) on 13 February 1969.

About the Station

Location: Mexico, 30.53 latitude, -111.10 longitude.
Elevation: 702 m (2,303 ft).
Period of record: 1931 to 1969, 39 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 Santa Ana (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 Santa Ana (Smn), with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	40.0 C (104.0 F)	-11.1 C (12.0 F)	n/a	n/a
Feb	41.7 C (107.1 F)	-10.0 C (14.0 F)	n/a	n/a
Mar	48.9 C (120.0 F)	-5.0 C (23.0 F)	n/a	n/a
Apr	45.6 C (114.1 F)	-3.3 C (26.1 F)	n/a	n/a
May	48.9 C (120.0 F)	-2.2 C (28.0 F)	n/a	n/a
Jun	48.9 C (120.0 F)	1.7 C (35.1 F)	n/a	n/a
Jul	48.9 C (120.0 F)	5.6 C (42.1 F)	n/a	n/a
Aug	48.9 C (120.0 F)	10.0 C (50.0 F)	n/a	n/a
Sep	48.9 C (120.0 F)	6.7 C (44.1 F)	n/a	n/a
Oct	48.9 C (120.0 F)	-1.1 C (30.0 F)	n/a	n/a
Nov	45.6 C (114.1 F)	-9.4 C (15.1 F)	n/a	n/a
Dec	47.8 C (118.0 F)	-8.3 C (17.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Santa Ana (Smn) still stand. 1934 holds the most, with 224.

Standing records at Santa Ana (Smn) by the year they were set
Year set	Standing records
1931	5
1932	28
1933	36
1934	224
1935	53
1936	11
1937	37
1938	14
1939	32
1940	94
1941	44
1942	25
1943	13
1944	79
1945	5
1946	10
1947	2
1949	105
1950	4
1951	18
1952	15
1953	26
1954	8
1955	10
1956	78
1957	112
1958	122
1959	131
1960	66
1961	14
1962	10
1963	8
1964	6
1965	6
1966	4
1967	4
1968	5

All-Time Record Progression

1 new records

1 all-time records were set at Santa Ana (Smn) between 27 January 1966 and 27 January 1966. Each dot is a new record.

Wettest Day of Each Month

Jan: 99.8 mm (3.9 in)

The wettest day on record for each calendar month at Santa Ana (Smn). The most was 99.8 mm (3.9 in) on 27 January 1966.

Record daily precipitation for each month at Santa Ana (Smn)
Month	Record daily precipitation (mm)	Date
Jan	99.8 mm (3.9 in)	27 January 1966
Feb	39.9 mm (1.6 in)	12 February 1931
Mar	22.9 mm (0.9 in)	14 March 1941
Apr	24.9 mm (1.0 in)	10 April 1968
May	29.0 mm (1.1 in)	13 May 1947
Jun	25.9 mm (1.0 in)	24 June 1935
Jul	71.9 mm (2.8 in)	29 July 1964
Aug	79.8 mm (3.1 in)	23 August 1958
Sep	64.8 mm (2.6 in)	14 September 1931
Oct	42.9 mm (1.7 in)	12 October 1937
Nov	36.8 mm (1.4 in)	26 November 1967
Dec	59.9 mm (2.4 in)	21 December 1935

Period of Record Coverage

1931 to 1969

38 years of record at Santa Ana (Smn), 1931 to 1969. 15 years have data for under 90 percent of days and are left out of rankings: 1935, 1941, 1942, 1943, 1944, 1945, 1947, 1950 and others.

Days with data per year at Santa Ana (Smn)
Year	Days with data	Share of year	Complete
1931	364	100%	Yes
1932	341	93%	Yes
1933	365	100%	Yes
1934	364	100%	Yes
1935	304	83%	No
1936	365	100%	Yes
1937	363	99%	Yes
1938	335	92%	Yes
1939	349	96%	Yes
1940	339	93%	Yes
1941	323	88%	No
1942	251	69%	No
1943	210	58%	No
1944	328	90%	No
1945	219	60%	No
1946	365	100%	Yes
1947	177	48%	No
1949	356	98%	Yes
1950	238	65%	No
1951	298	82%	No
1952	364	99%	Yes
1953	269	74%	No
1954	360	99%	Yes
1955	274	75%	No
1956	361	99%	Yes
1957	357	98%	Yes
1958	329	90%	Yes
1959	357	98%	Yes
1960	232	63%	No
1961	364	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	335	92%	Yes
1966	242	66%	No
1967	184	50%	No
1968	366	100%	Yes
1969	59	16%	No

Latest Records

Latest records at Santa Ana (Smn)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
13 February 1969	Santa Ana (Smn), MX	daily rain	37.8 mm (1.5 in)	33.0 mm (1.3 in)	38 years	54 of 100 (Notable)
31 January 1969	Santa Ana (Smn), MX	daily low min (Tie)	-4.4 C (24.1 F)	tie	10 years	1 of 100 (Routine)
22 January 1969	Santa Ana (Smn), MX	daily high min (Tie)	8.9 C (48.0 F)	tie	25 years	2 of 100 (Routine)
17 January 1969	Santa Ana (Smn), MX	daily high max (Tie)	28.9 C (84.0 F)	tie	28 years	2 of 100 (Routine)
14 January 1969	Santa Ana (Smn), MX	daily rain	37.8 mm (1.5 in)	33.0 mm (1.3 in)	24 years	33 of 100 (Routine)
8 January 1969	Santa Ana (Smn), MX	daily high max (Tie)	27.8 C (82.0 F)	tie	24 years	2 of 100 (Routine)
7 January 1969	Santa Ana (Smn), MX	daily high max (Tie)	28.9 C (84.0 F)	tie	24 years	2 of 100 (Routine)
6 January 1969	Santa Ana (Smn), MX	daily high max (Tie)	27.8 C (82.0 F)	tie	28 years	2 of 100 (Routine)
30 December 1968	Santa Ana (Smn), MX	daily low min (Tie)	-2.2 C (28.0 F)	tie	16 years	1 of 100 (Routine)
26 December 1968	Santa Ana (Smn), MX	daily low min (Tie)	-3.3 C (26.1 F)	tie	15 years	1 of 100 (Routine)
25 December 1968	Santa Ana (Smn), MX	daily rain	19.8 mm (0.8 in)	4.8 mm (0.19 in)	29 years	14 of 100 (Routine)
22 December 1968	Santa Ana (Smn), MX	daily low min	-3.3 C (26.1 F)	1.1 C (2.0 F)	31 years	14 of 100 (Routine)
21 December 1968	Santa Ana (Smn), MX	daily low min (Tie)	-4.4 C (24.1 F)	tie	11 years	1 of 100 (Routine)
20 December 1968	Santa Ana (Smn), MX	daily rain (Tie)	9.9 mm (0.39 in)	tie	30 years	3 of 100 (Routine)
18 December 1968	Santa Ana (Smn), MX	daily low min	-2.2 C (28.0 F)	1.1 C (2.0 F)	17 years	10 of 100 (Routine)
26 November 1968	Santa Ana (Smn), MX	daily low min (Tie)	-2.2 C (28.0 F)	tie	17 years	2 of 100 (Routine)
24 November 1968	Santa Ana (Smn), MX	daily low min (Tie)	0.0 C (32.0 F)	tie	37 years	3 of 100 (Routine)
3 August 1968	Santa Ana (Smn), MX	daily rain	47.0 mm (1.9 in)	24.1 mm (0.9 in)	7 years	25 of 100 (Routine)
26 July 1968	Santa Ana (Smn), MX	daily rain	43.9 mm (1.7 in)	25.1 mm (1.0 in)	7 years	28 of 100 (Routine)
5 July 1968	Santa Ana (Smn), MX	daily rain	52.8 mm (2.1 in)	11.9 mm (0.5 in)	15 years	18 of 100 (Routine)

Climate Trend

17 complete years, 1931 to 1968

One stripe for each of 17 complete years at Santa Ana (Smn), 1931 to 1968. Blue stripes are years cooler than the station's own mean of 20.4 C (68.8 F); red stripes are warmer. The coolest year was 1959, at 14.1 C (57.3 F), and the warmest was 1934, at 27.3 C (81.2 F). The strongest colour marks a difference of 7.0 C (12.6 F).

Annual mean temperature at Santa Ana (Smn) as warming stripes, 1931 to 1968
Year	Annual mean temperature	Difference from the station mean
1931	20.6 C	+0.13 C
1933	20.1 C	-0.39 C
1934	27.3 C	+6.90 C
1936	22.0 C	+1.51 C
1937	22.0 C	+1.56 C
1939	23.4 C	+2.99 C
1946	20.7 C	+0.23 C
1949	23.4 C	+2.91 C
1952	19.6 C	-0.84 C
1956	17.6 C	-2.86 C
1957	15.4 C	-5.06 C
1959	14.1 C	-6.38 C
1961	20.0 C	-0.45 C
1962	20.5 C	+0.03 C
1963	21.1 C	+0.64 C
1964	19.9 C	-0.55 C
1968	20.0 C	-0.41 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

1931 to 1969

Yearly extremes at Santa Ana (Smn): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	48.9 C (120.0 F)	1934	43.9 C (111.0 F)	38
Coldest night (TNn)	-11.1 C (12.0 F)	1958	-2.5 C (27.5 F)	38
Wettest day (Rx1day)	99.8 mm (3.9 in)	1966	38.3 mm (1.5 in)	38
Wettest five days (Rx5day)	184.4 mm (7.3 in)	1958	61.0 mm (2.4 in)	38
Longest dry spell (CDD)	245 days	1949	97 days	38

Hottest day (TXx)

The hottest day of the year at Santa Ana (Smn), 1931 to 1969. The record is 48.9 C (120.0 F) in 1934, marked on the chart; the median year is 43.9 C (111.0 F).

Hottest day (TXx) at Santa Ana (Smn) by year
Year	Hottest day (TXx)
1931	43.9 C (111.0 F)
1932	46.7 C (116.1 F)
1933	41.7 C (107.1 F)
1934	48.9 C (120.0 F)
1935	48.9 C (120.0 F)
1936	45.6 C (114.1 F)
1937	40.0 C (104.0 F)
1938	46.7 C (116.1 F)
1939	48.9 C (120.0 F)
1940	48.9 C (120.0 F)
1941	48.9 C (120.0 F)
1942	48.9 C (120.0 F)
1943	45.6 C (114.1 F)
1944	45.6 C (114.1 F)
1945	47.8 C (118.0 F)
1946	41.1 C (106.0 F)
1947	43.3 C (109.9 F)
1949	48.9 C (120.0 F)
1950	42.8 C (109.0 F)
1951	41.7 C (107.1 F)
1952	43.9 C (111.0 F)
1953	40.6 C (105.1 F)
1954	42.8 C (109.0 F)
1955	41.7 C (107.1 F)
1956	40.6 C (105.1 F)
1957	38.9 C (102.0 F)
1958	36.7 C (98.1 F)
1959	37.8 C (100.0 F)
1960	31.7 C (89.1 F)
1961	43.9 C (111.0 F)
1962	42.8 C (109.0 F)
1963	45.0 C (113.0 F)
1964	45.0 C (113.0 F)
1965	42.8 C (109.0 F)
1966	43.9 C (111.0 F)
1967	41.7 C (107.1 F)
1968	45.0 C (113.0 F)
1969	28.9 C (84.0 F)

Coldest night (TNn)

The coldest night of the year at Santa Ana (Smn), 1931 to 1969. The record is -11.1 C (12.0 F) in 1958, marked on the chart; the median year is -2.5 C (27.5 F).

Coldest night (TNn) at Santa Ana (Smn) by year
Year	Coldest night (TNn)
1931	0.0 C (32.0 F)
1932	0.0 C (32.0 F)
1933	0.0 C (32.0 F)
1934	0.0 C (32.0 F)
1935	0.0 C (32.0 F)
1936	0.0 C (32.0 F)
1937	-5.0 C (23.0 F)
1938	-2.2 C (28.0 F)
1939	0.0 C (32.0 F)
1940	0.0 C (32.0 F)
1941	0.0 C (32.0 F)
1942	0.0 C (32.0 F)
1943	1.7 C (35.1 F)
1944	0.0 C (32.0 F)
1945	-2.2 C (28.0 F)
1946	-2.8 C (27.0 F)
1947	-2.2 C (28.0 F)
1949	0.0 C (32.0 F)
1950	-4.4 C (24.1 F)
1951	-7.2 C (19.0 F)
1952	-5.0 C (23.0 F)
1953	-9.4 C (15.1 F)
1954	-7.2 C (19.0 F)
1955	-6.1 C (21.0 F)
1956	-9.4 C (15.1 F)
1957	-7.2 C (19.0 F)
1958	-11.1 C (12.0 F)
1959	-9.4 C (15.1 F)
1960	-10.0 C (14.0 F)
1961	0.0 C (32.0 F)
1962	-6.1 C (21.0 F)
1963	-6.1 C (21.0 F)
1964	-5.0 C (23.0 F)
1965	-0.6 C (30.9 F)
1966	-3.3 C (26.1 F)
1967	1.7 C (35.1 F)
1968	-4.4 C (24.1 F)
1969	-4.4 C (24.1 F)

Wettest day (Rx1day)

The wettest day of the year at Santa Ana (Smn), 1931 to 1969. The record is 99.8 mm (3.9 in) in 1966, marked on the chart; the median year is 38.3 mm (1.5 in).

Wettest day (Rx1day) at Santa Ana (Smn) by year
Year	Wettest day (Rx1day)
1931	64.8 mm (2.6 in)
1932	31.0 mm (1.2 in)
1933	36.8 mm (1.4 in)
1934	38.9 mm (1.5 in)
1935	59.9 mm (2.4 in)
1936	49.8 mm (2.0 in)
1937	42.9 mm (1.7 in)
1938	59.9 mm (2.4 in)
1939	33.8 mm (1.3 in)
1940	34.8 mm (1.4 in)
1941	51.8 mm (2.0 in)
1942	39.9 mm (1.6 in)
1943	42.9 mm (1.7 in)
1944	26.9 mm (1.1 in)
1945	31.8 mm (1.3 in)
1946	34.8 mm (1.4 in)
1947	29.0 mm (1.1 in)
1949	41.9 mm (1.6 in)
1950	37.8 mm (1.5 in)
1951	34.8 mm (1.4 in)
1952	14.0 mm (0.6 in)
1953	40.9 mm (1.6 in)
1954	34.8 mm (1.4 in)
1955	33.8 mm (1.3 in)
1956	39.9 mm (1.6 in)
1957	21.8 mm (0.9 in)
1958	79.8 mm (3.1 in)
1959	37.8 mm (1.5 in)
1960	64.8 mm (2.6 in)
1961	37.8 mm (1.5 in)
1962	59.9 mm (2.4 in)
1963	29.0 mm (1.1 in)
1964	71.9 mm (2.8 in)
1965	37.3 mm (1.5 in)
1966	99.8 mm (3.9 in)
1967	41.9 mm (1.6 in)
1968	52.8 mm (2.1 in)
1969	37.8 mm (1.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Santa Ana (Smn), 1931 to 1969. The record is 184.4 mm (7.3 in) in 1958, marked on the chart; the median year is 61.0 mm (2.4 in).

Wettest five days (Rx5day) at Santa Ana (Smn) by year
Year	Wettest five days (Rx5day)
1931	73.6 mm (2.9 in)
1932	47.8 mm (1.9 in)
1933	49.5 mm (1.9 in)
1934	51.9 mm (2.0 in)
1935	59.9 mm (2.4 in)
1936	85.6 mm (3.4 in)
1937	76.2 mm (3.0 in)
1938	59.9 mm (2.4 in)
1939	53.6 mm (2.1 in)
1940	42.0 mm (1.7 in)
1941	96.8 mm (3.8 in)
1942	60.7 mm (2.4 in)
1943	89.6 mm (3.5 in)
1944	76.4 mm (3.0 in)
1945	37.6 mm (1.5 in)
1946	52.1 mm (2.1 in)
1947	29.0 mm (1.1 in)
1949	81.8 mm (3.2 in)
1950	64.1 mm (2.5 in)
1951	51.6 mm (2.0 in)
1952	27.8 mm (1.1 in)
1953	44.7 mm (1.8 in)
1954	77.5 mm (3.1 in)
1955	55.7 mm (2.2 in)
1956	63.6 mm (2.5 in)
1957	29.2 mm (1.1 in)
1958	184.4 mm (7.3 in)
1959	61.3 mm (2.4 in)
1960	88.4 mm (3.5 in)
1961	78.4 mm (3.1 in)
1962	60.2 mm (2.4 in)
1963	73.4 mm (2.9 in)
1964	71.9 mm (2.8 in)
1965	44.7 mm (1.8 in)
1966	99.8 mm (3.9 in)
1967	113.5 mm (4.5 in)
1968	83.5 mm (3.3 in)
1969	37.8 mm (1.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Santa Ana (Smn), 1931 to 1969. The record is 245 days in 1949, marked on the chart; the median year is 97 days.

Longest dry spell (CDD) at Santa Ana (Smn) by year
Year	Longest dry spell (CDD)
1931	120 days
1932	118 days
1933	128 days
1934	70 days
1935	104 days
1936	117 days
1937	156 days
1938	91 days
1939	76 days
1940	120 days
1941	82 days
1942	36 days
1943	114 days
1944	182 days
1945	37 days
1946	69 days
1947	57 days
1949	245 days
1950	127 days
1951	54 days
1952	58 days
1953	125 days
1954	91 days
1955	58 days
1956	155 days
1957	103 days
1958	49 days
1959	134 days
1960	123 days
1961	144 days
1962	118 days
1963	74 days
1964	87 days
1965	117 days
1966	64 days
1967	51 days
1968	84 days
1969	29 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

33 years, 1931 to 1968

A day with at least 40.1 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 91.6 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Santa Ana (Smn): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	40.1 mm (1.6 in)
5 years	53.3 mm (2.1 in)
10 years	62.2 mm (2.4 in)
25 years	73.8 mm (2.9 in)
50 years	82.6 mm (3.3 in)	Longer than the 33 years of record
100 years	91.6 mm (3.6 in)	Longer than the 33 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, 33 years of values from 1931 to 1968.

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: 79.8 mm (3.1 in) in 1958; 71.9 mm (2.8 in) in 1964; 64.8 mm (2.6 in) in 1931.

Download the Data

Data for Santa Ana (Smn) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Santa Ana (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).