El Tecomate Weather Records (MXN00032017)

Record envelope, standing records and threshold days for El Tecomate (MXN00032017), Mexico, with 52 years of record.

Key Facts for El Tecomate

El Tecomate (MXN00032017) is a weather station in Mexico at 21.75 latitude and -103.05 longitude, 2,294 m (7,526 ft) above sea level.
The station reports from 1948 to 1999, 52 years of record.
1,464 records set at El Tecomate still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
El Tecomate set a daily record high maximum temperature of 31.7 C (89.1 F) on 30 December 1999.

About the Station

Location: Mexico, 21.75 latitude, -103.05 longitude.
Elevation: 2,294 m (7,526 ft).
Period of record: 1948 to 1999, 52 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 El Tecomate. 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 El Tecomate, 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)	-7.2 C (19.0 F)	n/a	n/a
Feb	36.7 C (98.1 F)	-6.1 C (21.0 F)	n/a	n/a
Mar	41.7 C (107.1 F)	-3.3 C (26.1 F)	n/a	n/a
Apr	40.6 C (105.1 F)	0.0 C (32.0 F)	n/a	n/a
May	42.8 C (109.0 F)	3.9 C (39.0 F)	n/a	n/a
Jun	42.8 C (109.0 F)	7.8 C (46.0 F)	n/a	n/a
Jul	38.9 C (102.0 F)	10.0 C (50.0 F)	n/a	n/a
Aug	37.2 C (99.0 F)	8.9 C (48.0 F)	n/a	n/a
Sep	35.6 C (96.1 F)	5.0 C (41.0 F)	n/a	n/a
Oct	41.7 C (107.1 F)	-1.1 C (30.0 F)	n/a	n/a
Nov	42.8 C (109.0 F)	-5.0 C (23.0 F)	n/a	n/a
Dec	40.6 C (105.1 F)	-4.4 C (24.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at El Tecomate still stand. 1997 holds the most, with 140.

Standing records at El Tecomate by the year they were set
Year set	Standing records
1948	9
1949	41
1950	27
1951	35
1952	26
1953	37
1954	15
1955	21
1956	17
1957	32
1958	25
1959	21
1960	23
1961	19
1962	21
1963	7
1964	6
1965	10
1966	25
1967	36
1968	32
1969	29
1970	30
1971	24
1972	19
1973	28
1974	18
1975	21
1976	32
1977	21
1978	17
1979	24
1980	21
1981	10
1982	38
1983	17
1984	15
1985	13
1986	10
1987	22
1988	12
1990	7
1991	45
1992	56
1993	46
1994	32
1995	59
1996	45
1997	140
1998	119
1999	9

All-Time Record Progression

6 new records

6 all-time records were set at El Tecomate between 4 June 1982 and 12 October 1997. Each dot is a new record.

When El Tecomate set new all-time records
Date	Kind	Detail
1982-06-04	Record high maximum temperature	Record high maximum temperature 41.1 C (106.0 F)
1986-06-13	Record daily precipitation	Record daily precipitation 76.5 mm (3.0 in)
1991-06-06	Record high maximum temperature	Record high maximum temperature 41.7 C (107.1 F)
1993-06-03	Record high maximum temperature	Record high maximum temperature 42.8 C (109.0 F)
1997-01-09	Record low minimum temperature	Record low minimum temperature -7.2 C (19.0 F)
1997-10-12	Record high minimum temperature	Record high minimum temperature 25.0 C (77.0 F)

Wettest Day of Each Month

Jun: 76.5 mm (3.0 in)

The wettest day on record for each calendar month at El Tecomate. The most was 76.5 mm (3.0 in) on 13 June 1986.

Record daily precipitation for each month at El Tecomate
Month	Record daily precipitation (mm)	Date
Jan	45.7 mm (1.8 in)	9 January 1992
Feb	23.6 mm (0.9 in)	23 February 1987
Mar	53.8 mm (2.1 in)	4 March 1968
Apr	27.7 mm (1.1 in)	2 April 1966
May	41.1 mm (1.6 in)	13 May 1956
Jun	76.5 mm (3.0 in)	13 June 1986
Jul	66.8 mm (2.6 in)	1 July 1973
Aug	56.4 mm (2.2 in)	18 August 1967
Sep	61.0 mm (2.4 in)	22 September 1967
Oct	46.0 mm (1.8 in)	9 October 1990
Nov	47.2 mm (1.9 in)	26 November 1982
Dec	38.1 mm (1.5 in)	10 December 1953

Period of Record Coverage

1948 to 1999

52 years of record at El Tecomate, 1948 to 1999. 16 years have data for under 90 percent of days and are left out of rankings: 1948, 1963, 1964, 1965, 1966, 1967, 1980, 1981 and others.

Days with data per year at El Tecomate
Year	Days with data	Share of year	Complete
1948	122	33%	No
1949	365	100%	Yes
1950	365	100%	Yes
1951	365	100%	Yes
1952	365	100%	Yes
1953	363	99%	Yes
1954	333	91%	Yes
1955	362	99%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	363	99%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	244	67%	No
1964	182	50%	No
1965	120	33%	No
1966	301	82%	No
1967	304	83%	No
1968	364	99%	Yes
1969	331	91%	Yes
1970	365	100%	Yes
1971	364	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	364	100%	Yes
1975	365	100%	Yes
1976	365	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	356	98%	Yes
1980	245	67%	No
1981	245	67%	No
1982	303	83%	No
1983	364	100%	Yes
1984	366	100%	Yes
1985	365	100%	Yes
1986	273	75%	No
1987	353	97%	Yes
1988	223	61%	No
1989	7	2%	No
1990	153	42%	No
1991	365	100%	Yes
1992	348	95%	Yes
1993	355	97%	Yes
1994	365	100%	Yes
1995	364	100%	Yes
1996	366	100%	Yes
1997	291	80%	No
1998	245	67%	No
1999	86	24%	No

Latest Records

Latest records at El Tecomate
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 December 1999	El Tecomate, MX	daily high max	31.7 C (89.1 F)	1.1 C (2.0 F)	1 year	8 of 100 (Routine)
20 December 1999	El Tecomate, MX	daily low min (Tie)	-2.2 C (28.0 F)	tie	4 years	1 of 100 (Routine)
13 December 1999	El Tecomate, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	8 years	1 of 100 (Routine)
3 December 1999	El Tecomate, MX	daily low max	21.1 C (70.0 F)	2.2 C (4.0 F)	45 years	24 of 100 (Routine)
10 November 1999	El Tecomate, MX	daily low min	0.6 C (33.1 F)	1.1 C (2.0 F)	44 years	20 of 100 (Routine)
8 November 1999	El Tecomate, MX	daily low min	0.6 C (33.1 F)	2.2 C (4.0 F)	48 years	24 of 100 (Routine)
27 October 1999	El Tecomate, MX	daily low min	0.6 C (33.1 F)	2.2 C (4.0 F)	4 years	12 of 100 (Routine)
26 October 1999	El Tecomate, MX	daily low min	0.6 C (33.1 F)	4.4 C (7.9 F)	33 years	27 of 100 (Routine)
25 October 1999	El Tecomate, MX	daily low min	0.6 C (33.1 F)	3.3 C (5.9 F)	33 years	24 of 100 (Routine)
24 October 1999	El Tecomate, MX	daily low min	0.0 C (32.0 F)	2.8 C (5.0 F)	33 years	22 of 100 (Routine)
23 October 1999	El Tecomate, MX	daily low min	0.6 C (33.1 F)	2.2 C (4.0 F)	2 years	11 of 100 (Routine)
7 October 1999	El Tecomate, MX	daily rain	18.3 mm (0.7 in)	0.8 mm (0.03 in)	16 years	11 of 100 (Routine)
6 October 1999	El Tecomate, MX	daily high max (Tie)	33.9 C (93.0 F)	tie	49 years	4 of 100 (Routine)
29 September 1998	El Tecomate, MX	daily high min	18.9 C (66.0 F)	1.1 C (2.0 F)	48 years	23 of 100 (Routine)
29 September 1998	El Tecomate, MX	daily rain	18.0 mm (0.7 in)	2.3 mm (0.09 in)	27 years	15 of 100 (Routine)
27 September 1998	El Tecomate, MX	daily rain	16.5 mm (0.6 in)	4.8 mm (0.19 in)	27 years	18 of 100 (Routine)
18 September 1998	El Tecomate, MX	daily high min (Tie)	17.8 C (64.0 F)	tie	48 years	4 of 100 (Routine)
17 September 1998	El Tecomate, MX	daily high min	17.8 C (64.0 F)	0.6 C (1.1 F)	49 years	21 of 100 (Routine)
1 September 1998	El Tecomate, MX	daily rain	25.4 mm (1.0 in)	1.5 mm (0.06 in)	3 years	6 of 100 (Routine)
17 August 1998	El Tecomate, MX	daily high min (Tie)	17.8 C (64.0 F)	tie	36 years	3 of 100 (Routine)

Climate Trend

33 complete years, 1949 to 1996

One stripe for each of 33 complete years at El Tecomate, 1949 to 1996. Blue stripes are years cooler than the station's own mean of 20.1 C (68.2 F); red stripes are warmer. The coolest year was 1975, at 18.9 C (66.0 F), and the warmest was 1949, at 21.6 C (70.9 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at El Tecomate as warming stripes, 1949 to 1996
Year	Annual mean temperature	Difference from the station mean
1949	21.6 C	+1.51 C
1950	21.4 C	+1.28 C
1951	21.2 C	+1.10 C
1952	20.8 C	+0.73 C
1953	20.8 C	+0.70 C
1955	20.4 C	+0.34 C
1956	20.2 C	+0.15 C
1957	21.0 C	+0.93 C
1958	20.3 C	+0.20 C
1959	20.1 C	-0.03 C
1960	20.1 C	-0.01 C
1961	19.8 C	-0.30 C
1962	20.1 C	+0.02 C
1968	18.9 C	-1.15 C
1970	19.0 C	-1.05 C
1971	19.2 C	-0.91 C
1972	19.6 C	-0.47 C
1973	19.2 C	-0.86 C
1974	19.3 C	-0.83 C
1975	18.9 C	-1.18 C
1976	19.1 C	-0.97 C
1977	19.1 C	-0.95 C
1978	19.3 C	-0.79 C
1979	20.6 C	+0.51 C
1983	20.1 C	+0.03 C
1984	19.9 C	-0.22 C
1985	20.4 C	+0.28 C
1987	19.8 C	-0.31 C
1991	21.0 C	+0.88 C
1993	20.9 C	+0.81 C
1994	21.1 C	+1.05 C
1995	20.2 C	+0.08 C
1996	19.5 C	-0.59 C

The fitted trend in annual mean temperature here over 1949 to 1996 is -0.15 C (-0.33 to 0.04) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.3 F (-0.6 to 0.1) per decade. The slope is a straight line fitted to 33 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at El Tecomate
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.15 C (-0.33 to 0.04) per decade	-0.3 F (-0.6 to 0.1) per decade	1949 to 1996	33	Not clearly different from zero
Mean daily maximum	0.3 C (-0.1 to 0.6) per decade	0.5 F (-0.1 to 1.1) per decade	1949 to 1996	33	Not clearly different from zero
Mean daily minimum	-0.6 C (-0.7 to -0.4) per decade	-1.0 F (-1.3 to -0.7) per decade	1949 to 1996	33	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

1948 to 1999

Yearly extremes at El Tecomate: 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)	1993	38.3 C (100.9 F)	52
Coldest night (TNn)	-7.2 C (19.0 F)	1997	-2.2 C (28.0 F)	52
Wettest day (Rx1day)	76.5 mm (3.0 in)	1986	42.2 mm (1.7 in)	52
Wettest five days (Rx5day)	136.9 mm (5.4 in)	1970	86.0 mm (3.4 in)	52
Longest dry spell (CDD)	151 days	1955	86 days	52

Hottest day (TXx)

The hottest day of the year at El Tecomate, 1948 to 1999. The record is 42.8 C (109.0 F) in 1993, marked on the chart; the median year is 38.3 C (100.9 F).

Hottest day (TXx) at El Tecomate by year
Year	Hottest day (TXx)
1948	35.0 C (95.0 F)
1949	40.6 C (105.1 F)
1950	38.9 C (102.0 F)
1951	37.2 C (99.0 F)
1952	38.9 C (102.0 F)
1953	40.0 C (104.0 F)
1954	39.4 C (102.9 F)
1955	39.4 C (102.9 F)
1956	36.7 C (98.1 F)
1957	38.3 C (100.9 F)
1958	37.2 C (99.0 F)
1959	39.4 C (102.9 F)
1960	38.3 C (100.9 F)
1961	38.3 C (100.9 F)
1962	38.3 C (100.9 F)
1963	37.8 C (100.0 F)
1964	37.8 C (100.0 F)
1965	32.2 C (90.0 F)
1966	39.4 C (102.9 F)
1967	35.0 C (95.0 F)
1968	36.7 C (98.1 F)
1969	38.9 C (102.0 F)
1970	37.8 C (100.0 F)
1971	37.8 C (100.0 F)
1972	37.8 C (100.0 F)
1973	40.0 C (104.0 F)
1974	38.9 C (102.0 F)
1975	36.7 C (98.1 F)
1976	36.7 C (98.1 F)
1977	36.1 C (97.0 F)
1978	38.9 C (102.0 F)
1979	39.4 C (102.9 F)
1980	40.0 C (104.0 F)
1981	38.3 C (100.9 F)
1982	41.1 C (106.0 F)
1983	40.6 C (105.1 F)
1984	36.7 C (98.1 F)
1985	38.3 C (100.9 F)
1986	40.0 C (104.0 F)
1987	37.2 C (99.0 F)
1988	33.9 C (93.0 F)
1989	30.6 C (87.1 F)
1990	32.8 C (91.0 F)
1991	41.7 C (107.1 F)
1992	40.0 C (104.0 F)
1993	42.8 C (109.0 F)
1994	40.6 C (105.1 F)
1995	42.8 C (109.0 F)
1996	40.0 C (104.0 F)
1997	42.8 C (109.0 F)
1998	41.7 C (107.1 F)
1999	33.9 C (93.0 F)

Coldest night (TNn)

The coldest night of the year at El Tecomate, 1948 to 1999. The record is -7.2 C (19.0 F) in 1997, marked on the chart; the median year is -2.2 C (28.0 F).

Coldest night (TNn) at El Tecomate by year
Year	Coldest night (TNn)
1948	3.9 C (39.0 F)
1949	-4.4 C (24.1 F)
1950	-2.8 C (27.0 F)
1951	-3.9 C (25.0 F)
1952	-2.2 C (28.0 F)
1953	-2.2 C (28.0 F)
1954	-1.7 C (28.9 F)
1955	-5.0 C (23.0 F)
1956	-5.0 C (23.0 F)
1957	0.6 C (33.1 F)
1958	0.0 C (32.0 F)
1959	-2.2 C (28.0 F)
1960	-6.1 C (21.0 F)
1961	-5.0 C (23.0 F)
1962	-5.0 C (23.0 F)
1963	-3.3 C (26.1 F)
1964	0.0 C (32.0 F)
1965	0.0 C (32.0 F)
1966	0.0 C (32.0 F)
1967	-3.3 C (26.1 F)
1968	-1.7 C (28.9 F)
1969	-1.1 C (30.0 F)
1970	-4.4 C (24.1 F)
1971	-4.4 C (24.1 F)
1972	-3.3 C (26.1 F)
1973	-3.3 C (26.1 F)
1974	-2.2 C (28.0 F)
1975	-4.4 C (24.1 F)
1976	-4.4 C (24.1 F)
1977	-2.2 C (28.0 F)
1978	-2.2 C (28.0 F)
1979	-3.9 C (25.0 F)
1980	0.6 C (33.1 F)
1981	-0.6 C (30.9 F)
1982	3.3 C (37.9 F)
1983	0.0 C (32.0 F)
1984	-3.3 C (26.1 F)
1985	0.0 C (32.0 F)
1986	0.0 C (32.0 F)
1987	-1.1 C (30.0 F)
1988	-5.0 C (23.0 F)
1989	3.3 C (37.9 F)
1990	-1.1 C (30.0 F)
1991	-5.0 C (23.0 F)
1992	-2.2 C (28.0 F)
1993	-4.4 C (24.1 F)
1994	-2.2 C (28.0 F)
1995	-4.4 C (24.1 F)
1996	-6.1 C (21.0 F)
1997	-7.2 C (19.0 F)
1998	5.6 C (42.1 F)
1999	-2.2 C (28.0 F)

Wettest day (Rx1day)

The wettest day of the year at El Tecomate, 1948 to 1999. The record is 76.5 mm (3.0 in) in 1986, marked on the chart; the median year is 42.2 mm (1.7 in).

Wettest day (Rx1day) at El Tecomate by year
Year	Wettest day (Rx1day)
1948	29.5 mm (1.2 in)
1949	46.0 mm (1.8 in)
1950	29.2 mm (1.1 in)
1951	41.4 mm (1.6 in)
1952	27.4 mm (1.1 in)
1953	42.2 mm (1.7 in)
1954	22.6 mm (0.9 in)
1955	51.3 mm (2.0 in)
1956	41.1 mm (1.6 in)
1957	36.8 mm (1.4 in)
1958	62.5 mm (2.5 in)
1959	49.3 mm (1.9 in)
1960	48.5 mm (1.9 in)
1961	37.3 mm (1.5 in)
1962	37.3 mm (1.5 in)
1963	54.4 mm (2.1 in)
1964	35.8 mm (1.4 in)
1965	53.1 mm (2.1 in)
1966	44.5 mm (1.8 in)
1967	61.0 mm (2.4 in)
1968	53.8 mm (2.1 in)
1969	35.6 mm (1.4 in)
1970	53.1 mm (2.1 in)
1971	33.3 mm (1.3 in)
1972	42.2 mm (1.7 in)
1973	66.8 mm (2.6 in)
1974	39.6 mm (1.6 in)
1975	46.5 mm (1.8 in)
1976	38.9 mm (1.5 in)
1977	54.9 mm (2.2 in)
1978	65.3 mm (2.6 in)
1979	40.4 mm (1.6 in)
1980	29.0 mm (1.1 in)
1981	26.7 mm (1.1 in)
1982	47.2 mm (1.9 in)
1983	58.9 mm (2.3 in)
1984	44.5 mm (1.8 in)
1985	29.0 mm (1.1 in)
1986	76.5 mm (3.0 in)
1987	40.9 mm (1.6 in)
1988	58.9 mm (2.3 in)
1989	31.5 mm (1.2 in)
1990	47.5 mm (1.9 in)
1991	56.9 mm (2.2 in)
1992	45.7 mm (1.8 in)
1993	30.2 mm (1.2 in)
1994	31.5 mm (1.2 in)
1995	60.5 mm (2.4 in)
1996	33.8 mm (1.3 in)
1997	35.1 mm (1.4 in)
1998	44.5 mm (1.8 in)
1999	18.3 mm (0.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at El Tecomate, 1948 to 1999. The record is 136.9 mm (5.4 in) in 1970, marked on the chart; the median year is 86.0 mm (3.4 in).

Wettest five days (Rx5day) at El Tecomate by year
Year	Wettest five days (Rx5day)
1948	51.7 mm (2.0 in)
1949	72.9 mm (2.9 in)
1950	64.8 mm (2.6 in)
1951	99.8 mm (3.9 in)
1952	62.2 mm (2.4 in)
1953	86.4 mm (3.4 in)
1954	58.3 mm (2.3 in)
1955	129.2 mm (5.1 in)
1956	62.2 mm (2.4 in)
1957	55.9 mm (2.2 in)
1958	127.2 mm (5.0 in)
1959	88.9 mm (3.5 in)
1960	88.2 mm (3.5 in)
1961	89.9 mm (3.5 in)
1962	77.2 mm (3.0 in)
1963	128.5 mm (5.1 in)
1964	39.6 mm (1.6 in)
1965	105.2 mm (4.1 in)
1966	74.3 mm (2.9 in)
1967	96.6 mm (3.8 in)
1968	98.5 mm (3.9 in)
1969	71.6 mm (2.8 in)
1970	136.9 mm (5.4 in)
1971	74.9 mm (2.9 in)
1972	87.6 mm (3.4 in)
1973	131.3 mm (5.2 in)
1974	80.8 mm (3.2 in)
1975	96.6 mm (3.8 in)
1976	68.7 mm (2.7 in)
1977	102.0 mm (4.0 in)
1978	99.8 mm (3.9 in)
1979	95.8 mm (3.8 in)
1980	61.8 mm (2.4 in)
1981	56.7 mm (2.2 in)
1982	85.2 mm (3.4 in)
1983	134.7 mm (5.3 in)
1984	76.7 mm (3.0 in)
1985	73.0 mm (2.9 in)
1986	132.7 mm (5.2 in)
1987	85.9 mm (3.4 in)
1988	113.2 mm (4.5 in)
1989	73.9 mm (2.9 in)
1990	99.0 mm (3.9 in)
1991	135.7 mm (5.3 in)
1992	86.1 mm (3.4 in)
1993	58.1 mm (2.3 in)
1994	83.9 mm (3.3 in)
1995	87.1 mm (3.4 in)
1996	89.9 mm (3.5 in)
1997	82.6 mm (3.3 in)
1998	50.0 mm (2.0 in)
1999	18.6 mm (0.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at El Tecomate, 1948 to 1999. The record is 151 days in 1955, marked on the chart; the median year is 86 days.

Longest dry spell (CDD) at El Tecomate by year
Year	Longest dry spell (CDD)
1948	29 days
1949	89 days
1950	147 days
1951	75 days
1952	109 days
1953	86 days
1954	140 days
1955	151 days
1956	95 days
1957	80 days
1958	74 days
1959	97 days
1960	147 days
1961	87 days
1962	71 days
1963	41 days
1964	108 days
1965	25 days
1966	47 days
1967	65 days
1968	76 days
1969	141 days
1970	102 days
1971	113 days
1972	73 days
1973	84 days
1974	69 days
1975	141 days
1976	91 days
1977	86 days
1978	129 days
1979	99 days
1980	51 days
1981	32 days
1982	137 days
1983	72 days
1984	90 days
1985	43 days
1986	114 days
1987	60 days
1988	82 days
1989	53 days
1990	77 days
1991	125 days
1992	47 days
1993	103 days
1994	128 days
1995	103 days
1996	71 days
1997	34 days
1998	100 days
1999	55 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.

Frost Dates and Growing Season

21 years with a frost

Across 21 years with a frost, the median last spring frost at El Tecomate falls on 17 February and the median first autumn frost on 11 December, which leaves a median of 291 days between them.

Frost dates and growing season at El Tecomate
Measure	Median, all years	Earliest period	Recent period (1950 to 1996)	Recent against earliest	Fitted trend
Last spring frost	17 February	n/a	17 February	n/a	n/a
First autumn frost	11 December	n/a	11 December	n/a	n/a
Growing days	291 days	n/a	291 days	n/a	n/a

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

38 years, 1949 to 1996

A day with at least 42.5 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 74.1 mm (2.9 in) of rain is expected about once in 100 years.

Rainfall return levels at El Tecomate: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	42.5 mm (1.7 in)
5 years	52.9 mm (2.1 in)
10 years	58.9 mm (2.3 in)
25 years	65.6 mm (2.6 in)
50 years	70.1 mm (2.8 in)	Longer than the 38 years of record
100 years	74.1 mm (2.9 in)	Longer than the 38 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, 38 years of values from 1949 to 1996.

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: 66.8 mm (2.6 in) in 1973; 65.3 mm (2.6 in) in 1978; 62.5 mm (2.5 in) in 1958.

Download the Data

Data for El Tecomate standing records by year: CSV or JSON. Field meanings are on the data page.
Data for El Tecomate 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 2026-10-14 (14 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).