Mascota (Smn) Weather Records (MXN00014096)

Record envelope, standing records and threshold days for Mascota (Smn) (MXN00014096), Mexico, with 90 years of record.

Key Facts for Mascota (Smn)

Mascota (Smn) (MXN00014096) is a weather station in Mexico at 20.52 latitude and -104.78 longitude, 1,230 m (4,035 ft) above sea level.
The station reports from 1923 to 2012, 90 years of record.
1,464 records set at Mascota (Smn) still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Mascota (Smn) tied a daily record high minimum temperature of 15.0 C (59.0 F) on 3 January 2012.

About the Station

Location: Mexico, 20.52 latitude, -104.78 longitude.
Elevation: 1,230 m (4,035 ft).
Period of record: 1923 to 2012, 90 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 Mascota (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 Mascota (Smn), with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	35.0 C (95.0 F)	-3.3 C (26.1 F)	n/a	n/a
Feb	36.7 C (98.1 F)	-1.7 C (28.9 F)	n/a	n/a
Mar	40.6 C (105.1 F)	-0.6 C (30.9 F)	n/a	n/a
Apr	42.8 C (109.0 F)	0.6 C (33.1 F)	n/a	n/a
May	41.7 C (107.1 F)	5.0 C (41.0 F)	n/a	n/a
Jun	41.1 C (106.0 F)	6.7 C (44.1 F)	n/a	n/a
Jul	40.0 C (104.0 F)	9.4 C (48.9 F)	n/a	n/a
Aug	40.0 C (104.0 F)	8.9 C (48.0 F)	n/a	n/a
Sep	40.6 C (105.1 F)	8.9 C (48.0 F)	n/a	n/a
Oct	37.8 C (100.0 F)	3.9 C (39.0 F)	n/a	n/a
Nov	35.6 C (96.1 F)	2.8 C (37.0 F)	n/a	n/a
Dec	36.7 C (98.1 F)	-2.8 C (27.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Mascota (Smn) still stand. 1936 holds the most, with 290.

Standing records at Mascota (Smn) by the year they were set
Year set	Standing records
1923	41
1926	5
1927	2
1928	4
1929	13
1930	159
1931	53
1932	17
1933	4
1935	52
1936	290
1937	87
1938	24
1939	8
1941	2
1942	49
1943	15
1944	87
1945	1
1946	4
1947	4
1948	1
1949	19
1950	2
1951	4
1952	4
1953	5
1954	1
1955	3
1956	6
1957	21
1958	6
1959	6
1960	7
1961	5
1962	4
1963	4
1964	6
1965	4
1966	6
1967	8
1968	5
1969	6
1970	7
1971	7
1972	4
1973	2
1974	8
1975	10
1976	11
1977	2
1978	5
1979	9
1980	6
1981	4
1982	8
1983	7
1984	3
1985	19
1986	12
1987	17
1988	3
1989	33
1990	77
1991	11
1992	8
1993	18
1994	4
1995	4
1996	5
1997	13
1998	2
1999	5
2001	11
2002	3
2003	4
2004	4
2005	13
2006	3
2007	9
2008	5
2009	4
2010	24
2011	6

All-Time Record Progression

7 new records

7 all-time records were set at Mascota (Smn) between 22 January 1961 and 2 February 2010. Each dot is a new record.

When Mascota (Smn) set new all-time records
Date	Kind	Detail
1961-01-22	Record low maximum temperature	Record low maximum temperature 14.4 C (57.9 F)
1968-03-04	Record daily precipitation	Record daily precipitation 110.0 mm (4.3 in)
1986-12-27	Record low minimum temperature	Record low minimum temperature -1.7 C (28.9 F)
1986-12-28	Record low minimum temperature	Record low minimum temperature -2.8 C (27.0 F)
1987-01-22	Record low minimum temperature	Record low minimum temperature -3.3 C (26.1 F)
2005-02-04	Record low maximum temperature	Record low maximum temperature 13.9 C (57.0 F)
2010-02-02	Record daily precipitation	Record daily precipitation 110.7 mm (4.4 in)

Wettest Day of Each Month

Feb: 110.7 mm (4.4 in)

The wettest day on record for each calendar month at Mascota (Smn). The most was 110.7 mm (4.4 in) on 2 February 2010.

Record daily precipitation for each month at Mascota (Smn)
Month	Record daily precipitation (mm)	Date
Jan	84.8 mm (3.3 in)	22 January 1961
Feb	110.7 mm (4.4 in)	2 February 2010
Mar	110.0 mm (4.3 in)	4 March 1968
Apr	55.9 mm (2.2 in)	17 April 1959
May	56.9 mm (2.2 in)	29 May 1953
Jun	81.8 mm (3.2 in)	22 June 1993
Jul	95.8 mm (3.8 in)	28 July 1955
Aug	101.9 mm (4.0 in)	31 August 1971
Sep	104.9 mm (4.1 in)	20 September 2000
Oct	78.0 mm (3.1 in)	3 October 1996
Nov	79.8 mm (3.1 in)	2 November 1983
Dec	50.8 mm (2.0 in)	31 December 1946

Period of Record Coverage

1923 to 2012

88 years of record at Mascota (Smn), 1923 to 2012. 12 years have data for under 90 percent of days and are left out of rankings: 1923, 1926, 1927, 1929, 1940, 1941, 1942, 1943 and others.

Days with data per year at Mascota (Smn)
Year	Days with data	Share of year	Complete
1923	133	36%	No
1926	235	64%	No
1927	302	83%	No
1928	351	96%	Yes
1929	264	72%	No
1930	353	97%	Yes
1931	353	97%	Yes
1932	355	97%	Yes
1933	354	97%	Yes
1934	361	99%	Yes
1935	363	99%	Yes
1936	366	100%	Yes
1937	364	100%	Yes
1938	365	100%	Yes
1939	365	100%	Yes
1940	31	8%	No
1941	153	42%	No
1942	281	77%	No
1943	301	82%	No
1944	335	92%	Yes
1945	365	100%	Yes
1946	304	83%	No
1947	365	100%	Yes
1948	366	100%	Yes
1949	364	100%	Yes
1950	365	100%	Yes
1951	365	100%	Yes
1952	335	92%	Yes
1953	334	92%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	364	100%	Yes
1958	364	100%	Yes
1959	333	91%	Yes
1960	366	100%	Yes
1961	360	99%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	364	100%	Yes
1967	365	100%	Yes
1968	364	99%	Yes
1969	363	99%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	365	100%	Yes
1981	363	99%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	365	100%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	365	100%	Yes
1988	365	100%	Yes
1989	363	99%	Yes
1990	365	100%	Yes
1991	363	99%	Yes
1992	328	90%	No
1993	327	90%	No
1994	330	90%	Yes
1995	357	98%	Yes
1996	366	100%	Yes
1997	364	100%	Yes
1998	365	100%	Yes
1999	335	92%	Yes
2000	365	100%	Yes
2001	365	100%	Yes
2002	365	100%	Yes
2003	365	100%	Yes
2004	366	100%	Yes
2005	365	100%	Yes
2006	364	100%	Yes
2007	365	100%	Yes
2008	335	92%	Yes
2009	364	100%	Yes
2010	365	100%	Yes
2011	365	100%	Yes
2012	31	8%	No

Latest Records

Latest records at Mascota (Smn)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
3 January 2012	Mascota (Smn), MX	daily high min (Tie)	15.0 C (59.0 F)	tie	74 years	7 of 100 (Routine)
28 November 2011	Mascota (Smn), MX	daily low min	3.3 C (37.9 F)	1.7 C (3.1 F)	9 years	15 of 100 (Routine)
12 October 2011	Mascota (Smn), MX	daily low max	20.0 C (68.0 F)	3.9 C (7.0 F)	57 years	40 of 100 (Notable)
12 October 2011	Mascota (Smn), MX	daily rain	64.3 mm (2.5 in)	29.5 mm (1.2 in)	12 years	37 of 100 (Notable)
11 October 2011	Mascota (Smn), MX	daily rain	45.2 mm (1.8 in)	14.5 mm (0.6 in)	34 years	30 of 100 (Routine)
11 October 2011	Mascota (Smn), MX	daily low max (Tie)	20.6 C (69.1 F)	tie	40 years	5 of 100 (Routine)
9 September 2011	Mascota (Smn), MX	daily low min	12.8 C (55.0 F)	1.6 C (2.9 F)	20 years	24 of 100 (Routine)
4 May 2011	Mascota (Smn), MX	daily rain	9.9 mm (0.39 in)	4.3 mm (0.17 in)	48 years	20 of 100 (Routine)
30 April 2011	Mascota (Smn), MX	daily high max (Tie)	35.0 C (95.0 F)	tie	58 years	6 of 100 (Routine)
25 January 2011	Mascota (Smn), MX	daily low min (Tie)	1.7 C (35.1 F)	tie	67 years	7 of 100 (Routine)
19 January 2011	Mascota (Smn), MX	daily low min	1.1 C (34.0 F)	0.6 C (1.1 F)	67 years	30 of 100 (Routine)
17 January 2011	Mascota (Smn), MX	daily low min	0.0 C (32.0 F)	0.6 C (1.1 F)	67 years	30 of 100 (Routine)
16 January 2011	Mascota (Smn), MX	daily low min	0.0 C (32.0 F)	0.6 C (1.1 F)	67 years	30 of 100 (Routine)
19 December 2010	Mascota (Smn), MX	daily low min	1.1 C (34.0 F)	2.2 C (4.0 F)	7 years	17 of 100 (Routine)
18 December 2010	Mascota (Smn), MX	daily low min	1.1 C (34.0 F)	1.7 C (3.1 F)	20 years	19 of 100 (Routine)
17 December 2010	Mascota (Smn), MX	daily low min	1.1 C (34.0 F)	0.6 C (1.1 F)	20 years	16 of 100 (Routine)
16 December 2010	Mascota (Smn), MX	daily low min	1.7 C (35.1 F)	1.6 C (2.9 F)	20 years	19 of 100 (Routine)
10 December 2010	Mascota (Smn), MX	daily low min (Tie)	4.4 C (39.9 F)	tie	8 years	2 of 100 (Routine)
10 November 2010	Mascota (Smn), MX	daily low min	5.0 C (41.0 F)	0.6 C (1.1 F)	31 years	19 of 100 (Routine)
9 November 2010	Mascota (Smn), MX	daily low min	4.4 C (39.9 F)	1.2 C (2.2 F)	31 years	21 of 100 (Routine)

Climate Trend

70 complete years, 1928 to 2011

One stripe for each of 70 complete years at Mascota (Smn), 1928 to 2011. 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 1990, at 18.0 C (64.4 F), and the warmest was 1936, at 24.2 C (75.5 F). The strongest colour marks a difference of 3.2 C (5.8 F).

Annual mean temperature at Mascota (Smn) as warming stripes, 1928 to 2011
Year	Annual mean temperature	Difference from the station mean
1928	21.5 C	+0.37 C
1930	23.4 C	+2.31 C
1931	22.5 C	+1.32 C
1932	22.1 C	+0.95 C
1933	21.9 C	+0.72 C
1934	21.2 C	+0.02 C
1935	20.1 C	-1.01 C
1936	24.2 C	+3.06 C
1937	23.7 C	+2.52 C
1938	22.1 C	+0.98 C
1939	21.3 C	+0.13 C
1945	21.2 C	+0.02 C
1947	21.1 C	+0.00 C
1948	21.2 C	+0.07 C
1949	19.7 C	-1.42 C
1950	21.1 C	-0.04 C
1951	21.1 C	-0.01 C
1954	20.8 C	-0.36 C
1955	20.8 C	-0.31 C
1956	21.8 C	+0.69 C
1957	22.9 C	+1.81 C
1958	21.8 C	+0.69 C
1960	21.6 C	+0.48 C
1961	21.3 C	+0.16 C
1962	21.5 C	+0.32 C
1963	21.3 C	+0.16 C
1964	21.4 C	+0.30 C
1965	21.7 C	+0.59 C
1966	21.5 C	+0.41 C
1967	21.3 C	+0.20 C
1968	21.3 C	+0.14 C
1969	22.0 C	+0.85 C
1970	21.8 C	+0.62 C
1971	21.4 C	+0.31 C
1972	21.3 C	+0.20 C
1973	20.9 C	-0.24 C
1974	20.8 C	-0.32 C
1975	20.9 C	-0.22 C
1976	21.1 C	-0.08 C
1977	21.2 C	+0.02 C
1978	21.2 C	+0.10 C
1979	21.2 C	+0.10 C
1980	21.5 C	+0.33 C
1981	21.1 C	-0.08 C
1982	21.3 C	+0.17 C
1983	20.4 C	-0.71 C
1984	21.0 C	-0.12 C
1985	20.3 C	-0.84 C
1986	20.9 C	-0.21 C
1987	20.6 C	-0.56 C
1988	21.3 C	+0.12 C
1989	20.1 C	-0.99 C
1990	18.0 C	-3.11 C
1991	20.8 C	-0.36 C
1994	21.3 C	+0.14 C
1995	21.4 C	+0.27 C
1996	21.0 C	-0.12 C
1997	20.5 C	-0.64 C
1998	21.3 C	+0.18 C
2000	21.7 C	+0.54 C
2001	19.6 C	-1.49 C
2002	20.1 C	-1.02 C
2003	20.1 C	-1.07 C
2004	19.8 C	-1.35 C
2005	20.2 C	-0.97 C
2006	20.2 C	-0.91 C
2007	20.0 C	-1.12 C
2009	20.4 C	-0.75 C
2010	19.6 C	-1.56 C
2011	20.4 C	-0.71 C

The annual mean temperature here has fallen by 0.2 C (0.2 to 0.3) per decade over 1928 to 2011. In Fahrenheit: 0.4 F (0.3 to 0.6) per decade. The slope is a straight line fitted to 70 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Mascota (Smn)
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.2 C (-0.3 to -0.2) per decade	-0.4 F (-0.6 to -0.3) per decade	1928 to 2011	70	Fall
Mean daily maximum	-0.2 C (-0.3 to -0.1) per decade	-0.4 F (-0.6 to -0.2) per decade	1928 to 2011	70	Fall
Mean daily minimum	-0.3 C (-0.4 to -0.1) per decade	-0.5 F (-0.7 to -0.2) per decade	1928 to 2011	70	Fall

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 2012

Yearly extremes at Mascota (Smn): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	42.8 C (109.0 F)	1931	35.0 C (95.0 F)	88
Coldest night (TNn)	-3.3 C (26.1 F)	1987	3.6 C (38.5 F)	88
Wettest day (Rx1day)	110.7 mm (4.4 in)	2010	55.7 mm (2.2 in)	88
Wettest five days (Rx5day)	224.9 mm (8.9 in)	1993	103.9 mm (4.1 in)	88
Longest dry spell (CDD)	163 days	1999	92 days	88

Hottest day (TXx)

The hottest day of the year at Mascota (Smn), 1923 to 2012. The record is 42.8 C (109.0 F) in 1931, marked on the chart; the median year is 35.0 C (95.0 F).

Hottest day (TXx) at Mascota (Smn) by year
Year	Hottest day (TXx)
1923	30.0 C (86.0 F)
1926	35.0 C (95.0 F)
1927	36.1 C (97.0 F)
1928	38.3 C (100.9 F)
1929	36.1 C (97.0 F)
1930	41.7 C (107.1 F)
1931	42.8 C (109.0 F)
1932	40.6 C (105.1 F)
1933	38.3 C (100.9 F)
1934	36.1 C (97.0 F)
1935	35.0 C (95.0 F)
1936	36.7 C (98.1 F)
1937	35.0 C (95.0 F)
1938	35.0 C (95.0 F)
1939	35.0 C (95.0 F)
1940	26.7 C (80.1 F)
1941	27.8 C (82.0 F)
1942	35.6 C (96.1 F)
1943	36.7 C (98.1 F)
1944	35.6 C (96.1 F)
1945	36.7 C (98.1 F)
1946	35.0 C (95.0 F)
1947	36.7 C (98.1 F)
1948	35.0 C (95.0 F)
1949	33.9 C (93.0 F)
1950	35.0 C (95.0 F)
1951	33.9 C (93.0 F)
1952	35.0 C (95.0 F)
1953	35.0 C (95.0 F)
1954	35.0 C (95.0 F)
1955	36.7 C (98.1 F)
1956	36.1 C (97.0 F)
1957	37.8 C (100.0 F)
1958	35.6 C (96.1 F)
1959	35.0 C (95.0 F)
1960	36.7 C (98.1 F)
1961	36.1 C (97.0 F)
1962	35.0 C (95.0 F)
1963	36.1 C (97.0 F)
1964	35.6 C (96.1 F)
1965	35.6 C (96.1 F)
1966	35.0 C (95.0 F)
1967	35.6 C (96.1 F)
1968	35.0 C (95.0 F)
1969	36.7 C (98.1 F)
1970	35.6 C (96.1 F)
1971	36.7 C (98.1 F)
1972	35.6 C (96.1 F)
1973	35.0 C (95.0 F)
1974	35.6 C (96.1 F)
1975	35.0 C (95.0 F)
1976	35.0 C (95.0 F)
1977	35.6 C (96.1 F)
1978	35.6 C (96.1 F)
1979	35.0 C (95.0 F)
1980	36.7 C (98.1 F)
1981	35.0 C (95.0 F)
1982	35.0 C (95.0 F)
1983	33.9 C (93.0 F)
1984	33.9 C (93.0 F)
1985	31.7 C (89.1 F)
1986	33.9 C (93.0 F)
1987	32.8 C (91.0 F)
1988	33.9 C (93.0 F)
1989	36.7 C (98.1 F)
1990	32.8 C (91.0 F)
1991	35.0 C (95.0 F)
1992	33.9 C (93.0 F)
1993	38.9 C (102.0 F)
1994	35.0 C (95.0 F)
1995	35.0 C (95.0 F)
1996	33.9 C (93.0 F)
1997	35.6 C (96.1 F)
1998	33.9 C (93.0 F)
1999	35.0 C (95.0 F)
2000	33.9 C (93.0 F)
2001	32.8 C (91.0 F)
2002	35.0 C (95.0 F)
2003	33.9 C (93.0 F)
2004	33.9 C (93.0 F)
2005	33.9 C (93.0 F)
2006	33.9 C (93.0 F)
2007	35.0 C (95.0 F)
2008	33.9 C (93.0 F)
2009	34.4 C (93.9 F)
2010	33.3 C (91.9 F)
2011	35.6 C (96.1 F)
2012	30.0 C (86.0 F)

Coldest night (TNn)

The coldest night of the year at Mascota (Smn), 1923 to 2012. The record is -3.3 C (26.1 F) in 1987, marked on the chart; the median year is 3.6 C (38.5 F).

Coldest night (TNn) at Mascota (Smn) by year
Year	Coldest night (TNn)
1923	7.8 C (46.0 F)
1926	7.2 C (45.0 F)
1927	4.4 C (39.9 F)
1928	5.0 C (41.0 F)
1929	4.4 C (39.9 F)
1930	5.0 C (41.0 F)
1931	1.7 C (35.1 F)
1932	3.3 C (37.9 F)
1933	5.0 C (41.0 F)
1934	4.4 C (39.9 F)
1935	4.4 C (39.9 F)
1936	10.0 C (50.0 F)
1937	7.8 C (46.0 F)
1938	7.8 C (46.0 F)
1939	6.7 C (44.1 F)
1940	11.7 C (53.1 F)
1941	12.8 C (55.0 F)
1942	5.0 C (41.0 F)
1943	0.6 C (33.1 F)
1944	0.0 C (32.0 F)
1945	5.6 C (42.1 F)
1946	5.0 C (41.0 F)
1947	5.0 C (41.0 F)
1948	2.2 C (36.0 F)
1949	0.6 C (33.1 F)
1950	1.7 C (35.1 F)
1951	-1.1 C (30.0 F)
1952	2.8 C (37.0 F)
1953	1.7 C (35.1 F)
1954	5.6 C (42.1 F)
1955	1.7 C (35.1 F)
1956	3.3 C (37.9 F)
1957	3.9 C (39.0 F)
1958	3.3 C (37.9 F)
1959	3.3 C (37.9 F)
1960	2.2 C (36.0 F)
1961	5.0 C (41.0 F)
1962	3.3 C (37.9 F)
1963	3.3 C (37.9 F)
1964	5.0 C (41.0 F)
1965	4.4 C (39.9 F)
1966	2.8 C (37.0 F)
1967	1.1 C (34.0 F)
1968	1.1 C (34.0 F)
1969	3.9 C (39.0 F)
1970	1.7 C (35.1 F)
1971	2.8 C (37.0 F)
1972	3.9 C (39.0 F)
1973	2.8 C (37.0 F)
1974	3.9 C (39.0 F)
1975	0.6 C (33.1 F)
1976	0.6 C (33.1 F)
1977	3.9 C (39.0 F)
1978	5.0 C (41.0 F)
1979	1.7 C (35.1 F)
1980	5.0 C (41.0 F)
1981	5.0 C (41.0 F)
1982	5.0 C (41.0 F)
1983	1.7 C (35.1 F)
1984	6.7 C (44.1 F)
1985	5.6 C (42.1 F)
1986	-2.8 C (27.0 F)
1987	-3.3 C (26.1 F)
1988	3.9 C (39.0 F)
1989	0.0 C (32.0 F)
1990	-0.6 C (30.9 F)
1991	-0.6 C (30.9 F)
1992	0.6 C (33.1 F)
1993	3.9 C (39.0 F)
1994	5.6 C (42.1 F)
1995	5.6 C (42.1 F)
1996	5.6 C (42.1 F)
1997	3.9 C (39.0 F)
1998	5.6 C (42.1 F)
1999	5.6 C (42.1 F)
2000	6.7 C (44.1 F)
2001	1.1 C (34.0 F)
2002	1.7 C (35.1 F)
2003	0.6 C (33.1 F)
2004	0.0 C (32.0 F)
2005	0.0 C (32.0 F)
2006	1.1 C (34.0 F)
2007	2.2 C (36.0 F)
2008	1.7 C (35.1 F)
2009	2.8 C (37.0 F)
2010	0.6 C (33.1 F)
2011	0.0 C (32.0 F)
2012	4.4 C (39.9 F)

Wettest day (Rx1day)

The wettest day of the year at Mascota (Smn), 1923 to 2012. The record is 110.7 mm (4.4 in) in 2010, marked on the chart; the median year is 55.7 mm (2.2 in).

Wettest day (Rx1day) at Mascota (Smn) by year
Year	Wettest day (Rx1day)
1923	41.9 mm (1.6 in)
1926	33.8 mm (1.3 in)
1927	37.8 mm (1.5 in)
1928	47.5 mm (1.9 in)
1929	39.9 mm (1.6 in)
1930	74.2 mm (2.9 in)
1931	55.9 mm (2.2 in)
1932	61.0 mm (2.4 in)
1933	47.0 mm (1.9 in)
1934	64.8 mm (2.6 in)
1935	39.9 mm (1.6 in)
1936	32.3 mm (1.3 in)
1937	52.8 mm (2.1 in)
1938	49.8 mm (2.0 in)
1939	38.9 mm (1.5 in)
1940	9.9 mm (0.39 in)
1941	19.8 mm (0.8 in)
1942	48.8 mm (1.9 in)
1943	46.0 mm (1.8 in)
1944	27.9 mm (1.1 in)
1945	57.9 mm (2.3 in)
1946	50.8 mm (2.0 in)
1947	57.4 mm (2.3 in)
1948	47.8 mm (1.9 in)
1949	63.8 mm (2.5 in)
1950	70.9 mm (2.8 in)
1951	66.8 mm (2.6 in)
1952	68.8 mm (2.7 in)
1953	58.9 mm (2.3 in)
1954	69.9 mm (2.8 in)
1955	95.8 mm (3.8 in)
1956	72.1 mm (2.8 in)
1957	59.9 mm (2.4 in)
1958	51.6 mm (2.0 in)
1959	55.9 mm (2.2 in)
1960	45.0 mm (1.8 in)
1961	84.8 mm (3.3 in)
1962	61.2 mm (2.4 in)
1963	56.4 mm (2.2 in)
1964	66.8 mm (2.6 in)
1965	37.8 mm (1.5 in)
1966	75.9 mm (3.0 in)
1967	46.2 mm (1.8 in)
1968	110.0 mm (4.3 in)
1969	59.2 mm (2.3 in)
1970	57.4 mm (2.3 in)
1971	101.9 mm (4.0 in)
1972	48.8 mm (1.9 in)
1973	45.0 mm (1.8 in)
1974	63.0 mm (2.5 in)
1975	47.8 mm (1.9 in)
1976	54.9 mm (2.2 in)
1977	42.9 mm (1.7 in)
1978	46.0 mm (1.8 in)
1979	64.3 mm (2.5 in)
1980	51.3 mm (2.0 in)
1981	49.8 mm (2.0 in)
1982	59.9 mm (2.4 in)
1983	79.8 mm (3.1 in)
1984	55.4 mm (2.2 in)
1985	54.9 mm (2.2 in)
1986	49.3 mm (1.9 in)
1987	69.6 mm (2.7 in)
1988	63.0 mm (2.5 in)
1989	56.4 mm (2.2 in)
1990	42.2 mm (1.7 in)
1991	45.0 mm (1.8 in)
1992	73.9 mm (2.9 in)
1993	82.8 mm (3.3 in)
1994	47.0 mm (1.9 in)
1995	49.8 mm (2.0 in)
1996	78.0 mm (3.1 in)
1997	51.8 mm (2.0 in)
1998	50.8 mm (2.0 in)
1999	55.9 mm (2.2 in)
2000	104.9 mm (4.1 in)
2001	58.4 mm (2.3 in)
2002	43.9 mm (1.7 in)
2003	71.1 mm (2.8 in)
2004	51.1 mm (2.0 in)
2005	46.5 mm (1.8 in)
2006	41.1 mm (1.6 in)
2007	68.1 mm (2.7 in)
2008	95.3 mm (3.8 in)
2009	62.0 mm (2.4 in)
2010	110.7 mm (4.4 in)
2011	64.3 mm (2.5 in)
2012	0.0 mm (0.00 in)

Wettest five days (Rx5day)

The wettest five days of the year at Mascota (Smn), 1923 to 2012. The record is 224.9 mm (8.9 in) in 1993, marked on the chart; the median year is 103.9 mm (4.1 in).

Wettest five days (Rx5day) at Mascota (Smn) by year
Year	Wettest five days (Rx5day)
1923	88.6 mm (3.5 in)
1926	58.2 mm (2.3 in)
1927	94.3 mm (3.7 in)
1928	114.0 mm (4.5 in)
1929	70.1 mm (2.8 in)
1930	74.2 mm (2.9 in)
1931	82.5 mm (3.2 in)
1932	97.8 mm (3.9 in)
1933	105.9 mm (4.2 in)
1934	97.3 mm (3.8 in)
1935	92.0 mm (3.6 in)
1936	73.9 mm (2.9 in)
1937	90.6 mm (3.6 in)
1938	115.9 mm (4.6 in)
1939	54.7 mm (2.2 in)
1940	14.7 mm (0.6 in)
1941	70.4 mm (2.8 in)
1942	99.1 mm (3.9 in)
1943	88.6 mm (3.5 in)
1944	58.4 mm (2.3 in)
1945	83.3 mm (3.3 in)
1946	97.8 mm (3.9 in)
1947	86.9 mm (3.4 in)
1948	101.4 mm (4.0 in)
1949	96.1 mm (3.8 in)
1950	132.9 mm (5.2 in)
1951	100.0 mm (3.9 in)
1952	106.9 mm (4.2 in)
1953	88.1 mm (3.5 in)
1954	126.0 mm (5.0 in)
1955	164.6 mm (6.5 in)
1956	90.0 mm (3.5 in)
1957	136.5 mm (5.4 in)
1958	91.0 mm (3.6 in)
1959	116.1 mm (4.6 in)
1960	118.9 mm (4.7 in)
1961	133.6 mm (5.3 in)
1962	123.2 mm (4.9 in)
1963	149.7 mm (5.9 in)
1964	101.0 mm (4.0 in)
1965	106.5 mm (4.2 in)
1966	113.6 mm (4.5 in)
1967	128.1 mm (5.0 in)
1968	186.7 mm (7.4 in)
1969	138.2 mm (5.4 in)
1970	119.2 mm (4.7 in)
1971	144.5 mm (5.7 in)
1972	116.6 mm (4.6 in)
1973	99.9 mm (3.9 in)
1974	109.2 mm (4.3 in)
1975	66.4 mm (2.6 in)
1976	97.4 mm (3.8 in)
1977	111.8 mm (4.4 in)
1978	93.2 mm (3.7 in)
1979	158.1 mm (6.2 in)
1980	110.5 mm (4.4 in)
1981	97.0 mm (3.8 in)
1982	82.8 mm (3.3 in)
1983	89.2 mm (3.5 in)
1984	84.0 mm (3.3 in)
1985	145.3 mm (5.7 in)
1986	101.2 mm (4.0 in)
1987	119.7 mm (4.7 in)
1988	195.8 mm (7.7 in)
1989	125.1 mm (4.9 in)
1990	89.0 mm (3.5 in)
1991	88.5 mm (3.5 in)
1992	134.9 mm (5.3 in)
1993	224.9 mm (8.9 in)
1994	94.5 mm (3.7 in)
1995	113.6 mm (4.5 in)
1996	141.8 mm (5.6 in)
1997	124.5 mm (4.9 in)
1998	118.4 mm (4.7 in)
1999	128.5 mm (5.1 in)
2000	135.3 mm (5.3 in)
2001	84.9 mm (3.3 in)
2002	91.6 mm (3.6 in)
2003	182.9 mm (7.2 in)
2004	136.4 mm (5.4 in)
2005	106.2 mm (4.2 in)
2006	98.0 mm (3.9 in)
2007	101.8 mm (4.0 in)
2008	122.8 mm (4.8 in)
2009	107.9 mm (4.2 in)
2010	160.5 mm (6.3 in)
2011	145.9 mm (5.7 in)
2012	0.0 mm (0.00 in)

Longest dry spell (CDD)

The longest dry spell of the year at Mascota (Smn), 1923 to 2012. The record is 163 days in 1999, marked on the chart; the median year is 92 days.

Longest dry spell (CDD) at Mascota (Smn) by year
Year	Longest dry spell (CDD)
1923	18 days
1926	50 days
1927	95 days
1928	111 days
1929	33 days
1930	86 days
1931	60 days
1932	107 days
1933	102 days
1934	61 days
1935	101 days
1936	161 days
1937	139 days
1938	79 days
1939	144 days
1940	17 days
1941	26 days
1942	114 days
1943	151 days
1944	56 days
1945	66 days
1946	87 days
1947	82 days
1948	70 days
1949	90 days
1950	149 days
1951	74 days
1952	111 days
1953	58 days
1954	154 days
1955	139 days
1956	94 days
1957	119 days
1958	74 days
1959	71 days
1960	69 days
1961	94 days
1962	91 days
1963	58 days
1964	135 days
1965	71 days
1966	48 days
1967	69 days
1968	84 days
1969	112 days
1970	70 days
1971	134 days
1972	130 days
1973	62 days
1974	58 days
1975	122 days
1976	112 days
1977	96 days
1978	91 days
1979	106 days
1980	58 days
1981	41 days
1982	53 days
1983	126 days
1984	91 days
1985	80 days
1986	127 days
1987	78 days
1988	95 days
1989	94 days
1990	83 days
1991	161 days
1992	100 days
1993	99 days
1994	147 days
1995	85 days
1996	150 days
1997	49 days
1998	112 days
1999	163 days
2000	147 days
2001	89 days
2002	89 days
2003	111 days
2004	61 days
2005	91 days
2006	93 days
2007	130 days
2008	129 days
2009	107 days
2010	117 days
2011	123 days
2012	31 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

81 years, 1928 to 2011

A day with at least 56.2 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 118.4 mm (4.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Mascota (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	56.2 mm (2.2 in)
5 years	70.9 mm (2.8 in)
10 years	81.3 mm (3.2 in)
25 years	95.5 mm (3.8 in)
50 years	106.7 mm (4.2 in)
100 years	118.4 mm (4.7 in)	Longer than the 81 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, 81 years of values from 1928 to 2011.

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: 110.7 mm (4.4 in) in 2010; 110.0 mm (4.3 in) in 1968; 104.9 mm (4.1 in) in 2000.

Download the Data

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