Trincheras Weather Records (MXN00026103)

Record envelope, standing records and threshold days for Trincheras (MXN00026103), Mexico, with 54 years of record.

Key Facts for Trincheras

Trincheras (MXN00026103) is a weather station in Mexico at 30.38 latitude and -111.52 longitude, 510 m (1,673 ft) above sea level.
The station reports from 1960 to 2013, 54 years of record.
1,464 records set at Trincheras still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Trincheras set a daily record precipitation of 46.0 mm (1.8 in) on 9 July 2013.

About the Station

Location: Mexico, 30.38 latitude, -111.52 longitude.
Elevation: 510 m (1,673 ft).
Period of record: 1960 to 2013, 54 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 Trincheras. 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 Trincheras, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	37.8 C (100.0 F)	-11.1 C (12.0 F)	n/a	n/a
Feb	35.6 C (96.1 F)	-9.4 C (15.1 F)	n/a	n/a
Mar	41.7 C (107.1 F)	-5.0 C (23.0 F)	n/a	n/a
Apr	46.7 C (116.1 F)	0.0 C (32.0 F)	n/a	n/a
May	48.9 C (120.0 F)	0.0 C (32.0 F)	n/a	n/a
Jun	49.4 C (120.9 F)	3.9 C (39.0 F)	n/a	n/a
Jul	47.8 C (118.0 F)	10.0 C (50.0 F)	n/a	n/a
Aug	47.8 C (118.0 F)	7.8 C (46.0 F)	n/a	n/a
Sep	47.8 C (118.0 F)	5.0 C (41.0 F)	n/a	n/a
Oct	43.9 C (111.0 F)	-2.2 C (28.0 F)	n/a	n/a
Nov	38.9 C (102.0 F)	-10.0 C (14.0 F)	n/a	n/a
Dec	33.9 C (93.0 F)	-7.2 C (19.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Trincheras still stand. 1961 holds the most, with 106.

Standing records at Trincheras by the year they were set
Year set	Standing records
1960	77
1961	106
1962	60
1963	72
1964	40
1965	50
1966	23
1967	14
1968	20
1969	28
1970	17
1971	56
1972	25
1973	23
1974	23
1975	27
1976	21
1977	19
1978	20
1979	16
1980	30
1981	9
1982	2
1983	8
1984	7
1985	16
1986	11
1987	20
1988	24
1989	35
1990	41
1991	48
1992	38
1993	17
1994	10
1995	40
1996	10
1997	14
1998	15
1999	29
2000	30
2001	12
2002	20
2003	19
2004	30
2005	17
2006	31
2007	28
2008	25
2009	23
2010	13
2011	25
2012	14
2013	16

All-Time Record Progression

3 new records

3 all-time records were set at Trincheras between 11 November 1994 and 19 June 2002. Each dot is a new record.

When Trincheras set new all-time records
Date	Kind	Detail
1994-11-11	Record daily precipitation	Record daily precipitation 150.9 mm (5.9 in)
2002-05-30	Record high maximum temperature	Record high maximum temperature 48.9 C (120.0 F)
2002-06-19	Record high maximum temperature	Record high maximum temperature 49.4 C (120.9 F)

Wettest Day of Each Month

Nov: 150.9 mm (5.9 in)

The wettest day on record for each calendar month at Trincheras. The most was 150.9 mm (5.9 in) on 11 November 1994.

Record daily precipitation for each month at Trincheras
Month	Record daily precipitation (mm)	Date
Jan	49.8 mm (2.0 in)	28 January 1983
Feb	119.9 mm (4.7 in)	13 February 1995
Mar	40.9 mm (1.6 in)	6 March 2000
Apr	24.4 mm (1.0 in)	5 April 2001
May	19.8 mm (0.8 in)	14 May 1987
Jun	58.9 mm (2.3 in)	23 June 2000
Jul	64.8 mm (2.6 in)	21 July 1971
Aug	64.8 mm (2.6 in)	18 August 1996
Sep	62.0 mm (2.4 in)	2 September 2012
Oct	113.8 mm (4.5 in)	4 October 1989
Nov	150.9 mm (5.9 in)	11 November 1994
Dec	46.0 mm (1.8 in)	30 December 1978

Period of Record Coverage

1960 to 2013

54 years of record at Trincheras, 1960 to 2013. 8 years have data for under 90 percent of days and are left out of rankings: 1983, 1988, 1989, 1990, 1994, 2001, 2004, 2013.

Days with data per year at Trincheras
Year	Days with data	Share of year	Complete
1960	340	93%	Yes
1961	365	100%	Yes
1962	334	92%	Yes
1963	360	99%	Yes
1964	365	100%	Yes
1965	364	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	365	100%	Yes
1969	361	99%	Yes
1970	364	100%	Yes
1971	364	100%	Yes
1972	366	100%	Yes
1973	364	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	365	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	365	100%	Yes
1981	363	99%	Yes
1982	360	99%	Yes
1983	303	83%	No
1984	334	91%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	365	100%	Yes
1988	324	89%	No
1989	302	83%	No
1990	246	67%	No
1991	365	100%	Yes
1992	364	99%	Yes
1993	365	100%	Yes
1994	274	75%	No
1995	365	100%	Yes
1996	334	91%	Yes
1997	359	98%	Yes
1998	334	92%	Yes
1999	365	100%	Yes
2000	334	91%	Yes
2001	185	51%	No
2002	359	98%	Yes
2003	352	96%	Yes
2004	210	57%	No
2005	362	99%	Yes
2006	353	97%	Yes
2007	362	99%	Yes
2008	365	100%	Yes
2009	365	100%	Yes
2010	365	100%	Yes
2011	364	100%	Yes
2012	364	99%	Yes
2013	211	58%	No

Latest Records

Latest records at Trincheras
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 July 2013	Trincheras, MX	daily rain	46.0 mm (1.8 in)	39.6 mm (1.6 in)	30 years	47 of 100 (Notable)
8 July 2013	Trincheras, MX	daily high min	27.8 C (82.0 F)	1.1 C (2.0 F)	40 years	20 of 100 (Routine)
7 July 2013	Trincheras, MX	daily high max (Tie)	45.0 C (113.0 F)	tie	48 years	4 of 100 (Routine)
30 June 2013	Trincheras, MX	daily high min (Tie)	26.7 C (80.1 F)	tie	39 years	4 of 100 (Routine)
29 June 2013	Trincheras, MX	daily high max	45.6 C (114.1 F)	0.6 C (1.1 F)	52 years	21 of 100 (Routine)
28 June 2013	Trincheras, MX	daily high max (Tie)	45.0 C (113.0 F)	tie	52 years	5 of 100 (Routine)
17 June 2013	Trincheras, MX	daily high min	26.7 C (80.1 F)	1.7 C (3.1 F)	4 years	10 of 100 (Routine)
14 June 2013	Trincheras, MX	daily high min (Tie)	23.9 C (75.0 F)	tie	40 years	4 of 100 (Routine)
11 June 2013	Trincheras, MX	daily high max	43.9 C (111.0 F)	1.1 C (2.0 F)	52 years	23 of 100 (Routine)
10 June 2013	Trincheras, MX	daily high min (Tie)	20.6 C (69.1 F)	tie	32 years	3 of 100 (Routine)
7 June 2013	Trincheras, MX	daily high max (Tie)	43.9 C (111.0 F)	tie	52 years	5 of 100 (Routine)
3 May 2013	Trincheras, MX	daily high min	16.7 C (62.1 F)	1.1 C (2.0 F)	47 years	21 of 100 (Routine)
29 March 2013	Trincheras, MX	daily high min (Tie)	12.8 C (55.0 F)	tie	46 years	4 of 100 (Routine)
16 March 2013	Trincheras, MX	daily high min (Tie)	11.7 C (53.1 F)	tie	8 years	1 of 100 (Routine)
15 March 2013	Trincheras, MX	daily high max (Tie)	36.7 C (98.1 F)	tie	2 years	1 of 100 (Routine)
14 March 2013	Trincheras, MX	daily high max (Tie)	36.7 C (98.1 F)	tie	52 years	5 of 100 (Routine)
4 March 2013	Trincheras, MX	daily high min	11.7 C (53.1 F)	1.1 C (2.0 F)	51 years	23 of 100 (Routine)
27 February 2013	Trincheras, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	51 years	5 of 100 (Routine)
26 February 2013	Trincheras, MX	daily low min (Tie)	0.0 C (32.0 F)	tie	36 years	3 of 100 (Routine)
25 February 2013	Trincheras, MX	daily low min	-2.2 C (28.0 F)	0.5 C (0.9 F)	6 years	7 of 100 (Routine)

Climate Trend

40 complete years, 1961 to 2012

One stripe for each of 40 complete years at Trincheras, 1961 to 2012. Blue stripes are years cooler than the station's own mean of 21.2 C (70.1 F); red stripes are warmer. The coolest year was 1991, at 18.5 C (65.2 F), and the warmest was 1961, at 23.8 C (74.8 F). The strongest colour marks a difference of 2.7 C (4.9 F).

Annual mean temperature at Trincheras as warming stripes, 1961 to 2012
Year	Annual mean temperature	Difference from the station mean
1961	23.8 C	+2.62 C
1963	21.9 C	+0.72 C
1964	20.9 C	-0.26 C
1965	20.4 C	-0.76 C
1966	21.0 C	-0.17 C
1967	21.1 C	-0.06 C
1968	20.6 C	-0.55 C
1969	21.0 C	-0.20 C
1970	20.9 C	-0.28 C
1971	19.1 C	-2.03 C
1972	20.7 C	-0.42 C
1973	19.8 C	-1.40 C
1974	19.6 C	-1.53 C
1975	20.0 C	-1.11 C
1976	20.4 C	-0.80 C
1977	21.2 C	+0.08 C
1978	20.7 C	-0.43 C
1979	20.1 C	-1.05 C
1980	21.5 C	+0.36 C
1981	21.8 C	+0.63 C
1982	20.5 C	-0.65 C
1985	21.2 C	+0.03 C
1986	21.8 C	+0.66 C
1987	21.5 C	+0.33 C
1991	18.5 C	-2.68 C
1992	19.3 C	-1.81 C
1993	20.1 C	-1.10 C
1995	21.5 C	+0.31 C
1997	21.8 C	+0.63 C
1999	21.5 C	+0.39 C
2002	22.4 C	+1.20 C
2003	22.5 C	+1.35 C
2005	22.3 C	+1.16 C
2006	22.6 C	+1.45 C
2007	22.3 C	+1.15 C
2008	21.9 C	+0.79 C
2009	22.2 C	+1.04 C
2010	21.7 C	+0.57 C
2011	21.8 C	+0.68 C
2012	22.3 C	+1.19 C

The annual mean temperature here has risen by 0.3 C (0.1 to 0.5) per decade over 1961 to 2012. In Fahrenheit: 0.5 F (0.1 to 0.8) per decade. The slope is a straight line fitted to 40 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Trincheras
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.3 C (0.1 to 0.5) per decade	0.5 F (0.1 to 0.8) per decade	1961 to 2012	40	Rise
Mean daily maximum	0.4 C (0.1 to 0.6) per decade	0.7 F (0.2 to 1.1) per decade	1961 to 2012	40	Rise
Mean daily minimum	0.2 C (-0.1 to 0.4) per decade	0.3 F (-0.2 to 0.7) per decade	1961 to 2012	40	Not clearly different from zero

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

1960 to 2013

Yearly extremes at Trincheras: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	49.4 C (120.9 F)	2002	45.0 C (113.0 F)	54
Coldest night (TNn)	-11.1 C (12.0 F)	1971	-2.2 C (28.0 F)	54
Wettest day (Rx1day)	150.9 mm (5.9 in)	1994	41.4 mm (1.6 in)	54
Wettest five days (Rx5day)	259.9 mm (10.2 in)	1995	60.9 mm (2.4 in)	54
Longest dry spell (CDD)	176 days	1967	100 days	54

Hottest day (TXx)

The hottest day of the year at Trincheras, 1960 to 2013. The record is 49.4 C (120.9 F) in 2002, marked on the chart; the median year is 45.0 C (113.0 F).

Hottest day (TXx) at Trincheras by year
Year	Hottest day (TXx)
1960	45.0 C (113.0 F)
1961	45.0 C (113.0 F)
1962	47.8 C (118.0 F)
1963	45.6 C (114.1 F)
1964	47.8 C (118.0 F)
1965	45.0 C (113.0 F)
1966	43.9 C (111.0 F)
1967	45.0 C (113.0 F)
1968	46.7 C (116.1 F)
1969	45.0 C (113.0 F)
1970	45.0 C (113.0 F)
1971	43.3 C (109.9 F)
1972	45.0 C (113.0 F)
1973	43.9 C (111.0 F)
1974	43.9 C (111.0 F)
1975	42.8 C (109.0 F)
1976	42.8 C (109.0 F)
1977	43.9 C (111.0 F)
1978	45.6 C (114.1 F)
1979	43.9 C (111.0 F)
1980	43.9 C (111.0 F)
1981	42.8 C (109.0 F)
1982	42.8 C (109.0 F)
1983	42.8 C (109.0 F)
1984	45.0 C (113.0 F)
1985	45.0 C (113.0 F)
1986	42.8 C (109.0 F)
1987	45.6 C (114.1 F)
1988	47.8 C (118.0 F)
1989	45.0 C (113.0 F)
1990	45.0 C (113.0 F)
1991	42.8 C (109.0 F)
1992	45.6 C (114.1 F)
1993	45.0 C (113.0 F)
1994	42.8 C (109.0 F)
1995	45.6 C (114.1 F)
1996	45.0 C (113.0 F)
1997	45.0 C (113.0 F)
1998	45.6 C (114.1 F)
1999	44.4 C (111.9 F)
2000	45.0 C (113.0 F)
2001	44.4 C (111.9 F)
2002	49.4 C (120.9 F)
2003	45.0 C (113.0 F)
2004	41.7 C (107.1 F)
2005	47.2 C (117.0 F)
2006	49.4 C (120.9 F)
2007	45.6 C (114.1 F)
2008	45.0 C (113.0 F)
2009	45.6 C (114.1 F)
2010	47.8 C (118.0 F)
2011	47.2 C (117.0 F)
2012	43.9 C (111.0 F)
2013	45.6 C (114.1 F)

Coldest night (TNn)

The coldest night of the year at Trincheras, 1960 to 2013. The record is -11.1 C (12.0 F) in 1971, marked on the chart; the median year is -2.2 C (28.0 F).

Coldest night (TNn) at Trincheras by year
Year	Coldest night (TNn)
1960	0.6 C (33.1 F)
1961	0.6 C (33.1 F)
1962	-6.1 C (21.0 F)
1963	-8.3 C (17.1 F)
1964	-5.0 C (23.0 F)
1965	-5.0 C (23.0 F)
1966	0.0 C (32.0 F)
1967	0.0 C (32.0 F)
1968	0.0 C (32.0 F)
1969	0.0 C (32.0 F)
1970	-1.1 C (30.0 F)
1971	-11.1 C (12.0 F)
1972	0.0 C (32.0 F)
1973	-3.3 C (26.1 F)
1974	0.0 C (32.0 F)
1975	0.0 C (32.0 F)
1976	0.0 C (32.0 F)
1977	0.0 C (32.0 F)
1978	-2.2 C (28.0 F)
1979	-4.4 C (24.1 F)
1980	-1.1 C (30.0 F)
1981	-3.3 C (26.1 F)
1982	-3.3 C (26.1 F)
1983	-4.4 C (24.1 F)
1984	-1.1 C (30.0 F)
1985	-1.1 C (30.0 F)
1986	-1.1 C (30.0 F)
1987	-5.0 C (23.0 F)
1988	0.0 C (32.0 F)
1989	0.0 C (32.0 F)
1990	0.0 C (32.0 F)
1991	0.0 C (32.0 F)
1992	-1.1 C (30.0 F)
1993	0.0 C (32.0 F)
1994	0.0 C (32.0 F)
1995	0.6 C (33.1 F)
1996	-2.2 C (28.0 F)
1997	-3.3 C (26.1 F)
1998	-4.4 C (24.1 F)
1999	-7.8 C (18.0 F)
2000	-8.3 C (17.1 F)
2001	-10.0 C (14.0 F)
2002	-4.4 C (24.1 F)
2003	-6.1 C (21.0 F)
2004	-6.1 C (21.0 F)
2005	-2.2 C (28.0 F)
2006	-5.0 C (23.0 F)
2007	-7.8 C (18.0 F)
2008	-5.0 C (23.0 F)
2009	-2.8 C (27.0 F)
2010	-6.1 C (21.0 F)
2011	-9.4 C (15.1 F)
2012	-1.1 C (30.0 F)
2013	-10.0 C (14.0 F)

Wettest day (Rx1day)

The wettest day of the year at Trincheras, 1960 to 2013. The record is 150.9 mm (5.9 in) in 1994, marked on the chart; the median year is 41.4 mm (1.6 in).

Wettest day (Rx1day) at Trincheras by year
Year	Wettest day (Rx1day)
1960	54.9 mm (2.2 in)
1961	34.8 mm (1.4 in)
1962	54.9 mm (2.2 in)
1963	30.0 mm (1.2 in)
1964	59.9 mm (2.4 in)
1965	26.9 mm (1.1 in)
1966	37.8 mm (1.5 in)
1967	39.9 mm (1.6 in)
1968	24.9 mm (1.0 in)
1969	26.9 mm (1.1 in)
1970	56.9 mm (2.2 in)
1971	64.8 mm (2.6 in)
1972	45.0 mm (1.8 in)
1973	39.9 mm (1.6 in)
1974	62.0 mm (2.4 in)
1975	33.8 mm (1.3 in)
1976	36.8 mm (1.4 in)
1977	21.8 mm (0.9 in)
1978	79.8 mm (3.1 in)
1979	47.8 mm (1.9 in)
1980	39.9 mm (1.6 in)
1981	52.8 mm (2.1 in)
1982	63.0 mm (2.5 in)
1983	49.8 mm (2.0 in)
1984	45.0 mm (1.8 in)
1985	30.0 mm (1.2 in)
1986	24.9 mm (1.0 in)
1987	27.9 mm (1.1 in)
1988	31.8 mm (1.3 in)
1989	113.8 mm (4.5 in)
1990	34.8 mm (1.4 in)
1991	22.9 mm (0.9 in)
1992	21.8 mm (0.9 in)
1993	13.0 mm (0.5 in)
1994	150.9 mm (5.9 in)
1995	119.9 mm (4.7 in)
1996	64.8 mm (2.6 in)
1997	37.8 mm (1.5 in)
1998	29.0 mm (1.1 in)
1999	48.3 mm (1.9 in)
2000	99.3 mm (3.9 in)
2001	45.5 mm (1.8 in)
2002	42.9 mm (1.7 in)
2003	48.8 mm (1.9 in)
2004	15.0 mm (0.6 in)
2005	46.5 mm (1.8 in)
2006	36.8 mm (1.4 in)
2007	30.2 mm (1.2 in)
2008	33.3 mm (1.3 in)
2009	42.9 mm (1.7 in)
2010	31.8 mm (1.3 in)
2011	47.0 mm (1.9 in)
2012	62.0 mm (2.4 in)
2013	46.0 mm (1.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Trincheras, 1960 to 2013. The record is 259.9 mm (10.2 in) in 1995, marked on the chart; the median year is 60.9 mm (2.4 in).

Wettest five days (Rx5day) at Trincheras by year
Year	Wettest five days (Rx5day)
1960	82.6 mm (3.3 in)
1961	73.7 mm (2.9 in)
1962	54.9 mm (2.2 in)
1963	39.4 mm (1.6 in)
1964	68.4 mm (2.7 in)
1965	30.2 mm (1.2 in)
1966	92.7 mm (3.6 in)
1967	58.5 mm (2.3 in)
1968	42.4 mm (1.7 in)
1969	42.7 mm (1.7 in)
1970	85.9 mm (3.4 in)
1971	83.6 mm (3.3 in)
1972	56.4 mm (2.2 in)
1973	69.6 mm (2.7 in)
1974	145.8 mm (5.7 in)
1975	52.4 mm (2.1 in)
1976	46.5 mm (1.8 in)
1977	35.8 mm (1.4 in)
1978	86.4 mm (3.4 in)
1979	56.9 mm (2.2 in)
1980	67.8 mm (2.7 in)
1981	62.2 mm (2.4 in)
1982	82.8 mm (3.3 in)
1983	106.4 mm (4.2 in)
1984	79.6 mm (3.1 in)
1985	60.8 mm (2.4 in)
1986	36.3 mm (1.4 in)
1987	27.9 mm (1.1 in)
1988	50.4 mm (2.0 in)
1989	113.8 mm (4.5 in)
1990	49.8 mm (2.0 in)
1991	43.2 mm (1.7 in)
1992	28.2 mm (1.1 in)
1993	17.8 mm (0.7 in)
1994	154.0 mm (6.1 in)
1995	259.9 mm (10.2 in)
1996	64.8 mm (2.6 in)
1997	60.9 mm (2.4 in)
1998	53.3 mm (2.1 in)
1999	70.7 mm (2.8 in)
2000	112.8 mm (4.4 in)
2001	49.6 mm (2.0 in)
2002	69.6 mm (2.7 in)
2003	84.4 mm (3.3 in)
2004	24.6 mm (1.0 in)
2005	48.8 mm (1.9 in)
2006	59.2 mm (2.3 in)
2007	51.5 mm (2.0 in)
2008	73.4 mm (2.9 in)
2009	52.6 mm (2.1 in)
2010	31.8 mm (1.3 in)
2011	70.9 mm (2.8 in)
2012	117.1 mm (4.6 in)
2013	68.8 mm (2.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Trincheras, 1960 to 2013. The record is 176 days in 1967, marked on the chart; the median year is 100 days.

Longest dry spell (CDD) at Trincheras by year
Year	Longest dry spell (CDD)
1960	86 days
1961	140 days
1962	121 days
1963	73 days
1964	82 days
1965	124 days
1966	91 days
1967	176 days
1968	83 days
1969	145 days
1970	77 days
1971	90 days
1972	148 days
1973	89 days
1974	167 days
1975	113 days
1976	48 days
1977	153 days
1978	106 days
1979	124 days
1980	100 days
1981	59 days
1982	114 days
1983	92 days
1984	169 days
1985	84 days
1986	104 days
1987	73 days
1988	66 days
1989	101 days
1990	64 days
1991	101 days
1992	62 days
1993	105 days
1994	39 days
1995	83 days
1996	109 days
1997	95 days
1998	99 days
1999	92 days
2000	108 days
2001	61 days
2002	155 days
2003	104 days
2004	57 days
2005	89 days
2006	105 days
2007	106 days
2008	129 days
2009	101 days
2010	89 days
2011	83 days
2012	105 days
2013	82 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

33 years with a frost

Across 33 years with a frost, the median last spring frost at Trincheras falls on 4 March and the median first autumn frost on 29 November, which leaves a median of 278 days between them.

Fitted over all years, the growing season changes by -0.3 days per decade at this station.

Frost dates and growing season at Trincheras
Measure	Median, all years	Earliest period	Recent period (1967 to 2012)	Recent against earliest	Fitted trend
Last spring frost	4 March	n/a	4 March	n/a	+0.3 days per decade
First autumn frost	29 November	n/a	29 November	n/a	0.0 days per decade
Growing days	278 days	n/a	278 days	n/a	-0.3 days per decade

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

47 years, 1960 to 2012

A day with at least 40.4 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 113.0 mm (4.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Trincheras: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	40.4 mm (1.6 in)
5 years	57.4 mm (2.3 in)
10 years	69.5 mm (2.7 in)
25 years	86.0 mm (3.4 in)
50 years	99.2 mm (3.9 in)	Longer than the 47 years of record
100 years	113.0 mm (4.4 in)	Longer than the 47 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, 47 years of values from 1960 to 2012.

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: 119.9 mm (4.7 in) in 1995; 99.3 mm (3.9 in) in 2000; 79.8 mm (3.1 in) in 1978.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

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