Parras Weather Records (MXN00005024)

Record envelope, standing records and threshold days for Parras (MXN00005024), Mexico, with 53 years of record.

Key Facts for Parras

Parras (MXN00005024) is a weather station in Mexico at 25.43 latitude and -102.17 longitude, 1,500 m (4,921 ft) above sea level.
The station reports from 1957 to 2009, 53 years of record.
1,464 records set at Parras still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Parras set a daily record high maximum temperature of 35.0 C (95.0 F) on 15 October 2009.

About the Station

Location: Mexico, 25.43 latitude, -102.17 longitude.
Elevation: 1,500 m (4,921 ft).
Period of record: 1957 to 2009, 53 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 Parras. 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 Parras, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	30.0 C (86.0 F)	-11.1 C (12.0 F)	n/a	n/a
Feb	35.0 C (95.0 F)	-7.2 C (19.0 F)	n/a	n/a
Mar	36.1 C (97.0 F)	-3.3 C (26.1 F)	n/a	n/a
Apr	41.7 C (107.1 F)	1.7 C (35.1 F)	n/a	n/a
May	40.6 C (105.1 F)	6.7 C (44.1 F)	n/a	n/a
Jun	41.7 C (107.1 F)	10.0 C (50.0 F)	n/a	n/a
Jul	43.9 C (111.0 F)	8.9 C (48.0 F)	n/a	n/a
Aug	40.6 C (105.1 F)	7.8 C (46.0 F)	n/a	n/a
Sep	41.7 C (107.1 F)	5.6 C (42.1 F)	n/a	n/a
Oct	35.6 C (96.1 F)	0.0 C (32.0 F)	n/a	n/a
Nov	32.2 C (90.0 F)	-5.0 C (23.0 F)	n/a	n/a
Dec	30.0 C (86.0 F)	-8.3 C (17.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Parras still stand. 1992 holds the most, with 61.

Standing records at Parras by the year they were set
Year set	Standing records
1957	11
1961	56
1962	26
1963	29
1964	43
1965	36
1966	19
1967	25
1968	27
1969	35
1970	39
1971	39
1972	26
1973	40
1974	21
1975	19
1976	36
1977	20
1978	23
1979	30
1980	44
1981	22
1982	42
1983	27
1984	29
1985	28
1986	12
1987	52
1988	31
1989	43
1990	21
1991	27
1992	61
1993	35
1994	21
1995	34
1996	32
1997	36
1998	22
1999	17
2000	21
2001	30
2002	15
2003	35
2004	20
2005	19
2006	19
2007	28
2008	22
2009	19

All-Time Record Progression

1 new records

1 all-time records were set at Parras between 1 July 1992 and 1 July 1992. Each dot is a new record.

Wettest Day of Each Month

Dec: 129.8 mm (5.1 in)

The wettest day on record for each calendar month at Parras. The most was 129.8 mm (5.1 in) on 3 December 1989.

Record daily precipitation for each month at Parras
Month	Record daily precipitation (mm)	Date
Jan	73.2 mm (2.9 in)	30 January 1984
Feb	32.0 mm (1.3 in)	16 February 1957
Mar	26.7 mm (1.1 in)	3 March 1968
Apr	26.2 mm (1.0 in)	16 April 1981
May	68.8 mm (2.7 in)	27 May 1983
Jun	45.0 mm (1.8 in)	17 June 2000
Jul	57.9 mm (2.3 in)	12 July 1986
Aug	63.8 mm (2.5 in)	20 August 1967
Sep	122.2 mm (4.8 in)	24 September 1997
Oct	52.8 mm (2.1 in)	11 October 2003
Nov	53.8 mm (2.1 in)	25 November 1982
Dec	129.8 mm (5.1 in)	3 December 1989

Period of Record Coverage

1957 to 2009

50 years of record at Parras, 1957 to 2009. 4 years have data for under 90 percent of days and are left out of rankings: 1957, 1986, 1994, 2009.

Days with data per year at Parras
Year	Days with data	Share of year	Complete
1957	40	11%	No
1961	337	92%	Yes
1962	363	99%	Yes
1963	331	91%	Yes
1964	364	99%	Yes
1965	362	99%	Yes
1966	361	99%	Yes
1967	360	99%	Yes
1968	366	100%	Yes
1969	362	99%	Yes
1970	364	100%	Yes
1971	365	100%	Yes
1972	364	99%	Yes
1973	363	99%	Yes
1974	365	100%	Yes
1975	363	99%	Yes
1976	364	99%	Yes
1977	364	100%	Yes
1978	362	99%	Yes
1979	364	100%	Yes
1980	360	98%	Yes
1981	363	99%	Yes
1982	361	99%	Yes
1983	364	100%	Yes
1984	364	99%	Yes
1985	363	99%	Yes
1986	273	75%	No
1987	329	90%	Yes
1988	365	100%	Yes
1989	364	100%	Yes
1990	365	100%	Yes
1991	362	99%	Yes
1992	363	99%	Yes
1993	365	100%	Yes
1994	302	83%	No
1995	365	100%	Yes
1996	364	99%	Yes
1997	362	99%	Yes
1998	362	99%	Yes
1999	365	100%	Yes
2000	363	99%	Yes
2001	363	99%	Yes
2002	365	100%	Yes
2003	365	100%	Yes
2004	363	99%	Yes
2005	363	99%	Yes
2006	331	91%	Yes
2007	361	99%	Yes
2008	364	99%	Yes
2009	245	67%	No

Latest Records

Latest records at Parras
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 October 2009	Parras, MX	daily high max	35.0 C (95.0 F)	2.2 C (4.0 F)	40 years	22 of 100 (Routine)
14 October 2009	Parras, MX	daily high max (Tie)	33.9 C (93.0 F)	tie	2 years	1 of 100 (Routine)
8 October 2009	Parras, MX	daily high min	20.6 C (69.1 F)	1.2 C (2.2 F)	47 years	22 of 100 (Routine)
6 October 2009	Parras, MX	monthly high max (Tie)	35.6 C (96.1 F)	tie	21 years	5 of 100 (Routine)
5 October 2009	Parras, MX	monthly high max (Tie)	35.6 C (96.1 F)	tie	21 years	5 of 100 (Routine)
4 October 2009	Parras, MX	daily high max (Tie)	33.9 C (93.0 F)	tie	28 years	3 of 100 (Routine)
23 September 2009	Parras, MX	daily rain	41.9 mm (1.6 in)	24.1 mm (0.9 in)	36 years	35 of 100 (Notable)
16 September 2009	Parras, MX	daily high max (Tie)	35.0 C (95.0 F)	tie	22 years	2 of 100 (Routine)
7 September 2009	Parras, MX	daily low min (Tie)	12.8 C (55.0 F)	tie	3 years	1 of 100 (Routine)
3 September 2009	Parras, MX	daily rain	37.8 mm (1.5 in)	19.5 mm (0.8 in)	42 years	32 of 100 (Routine)
3 September 2009	Parras, MX	daily low max	21.7 C (71.1 F)	2.2 C (4.0 F)	42 years	22 of 100 (Routine)
1 September 2009	Parras, MX	daily low max (Tie)	20.6 C (69.1 F)	tie	22 years	2 of 100 (Routine)
1 September 2009	Parras, MX	daily low min (Tie)	12.8 C (55.0 F)	tie	8 years	1 of 100 (Routine)
31 August 2009	Parras, MX	monthly low max (Tie)	20.0 C (68.0 F)	tie	42 years	6 of 100 (Routine)
17 August 2009	Parras, MX	daily high max	35.6 C (96.1 F)	0.6 C (1.1 F)	39 years	18 of 100 (Routine)
16 August 2009	Parras, MX	daily high max	35.6 C (96.1 F)	0.6 C (1.1 F)	39 years	18 of 100 (Routine)
16 August 2009	Parras, MX	daily high min (Tie)	20.0 C (68.0 F)	tie	28 years	3 of 100 (Routine)
15 August 2009	Parras, MX	daily high max (Tie)	35.6 C (96.1 F)	tie	22 years	2 of 100 (Routine)
28 July 2009	Parras, MX	daily high max	36.7 C (98.1 F)	1.1 C (2.0 F)	35 years	18 of 100 (Routine)
26 July 2009	Parras, MX	daily high max (Tie)	35.6 C (96.1 F)	tie	14 years	2 of 100 (Routine)

Climate Trend

42 complete years, 1962 to 2008

One stripe for each of 42 complete years at Parras, 1962 to 2008. Blue stripes are years cooler than the station's own mean of 19.9 C (67.8 F); red stripes are warmer. The coolest year was 2001, at 18.7 C (65.7 F), and the warmest was 1995, at 21.2 C (70.2 F). The strongest colour marks a difference of 1.3 C (2.3 F).

Annual mean temperature at Parras as warming stripes, 1962 to 2008
Year	Annual mean temperature	Difference from the station mean
1962	20.3 C	+0.43 C
1964	19.6 C	-0.27 C
1965	20.1 C	+0.15 C
1966	19.0 C	-0.90 C
1967	19.9 C	-0.06 C
1968	19.1 C	-0.82 C
1969	20.2 C	+0.30 C
1970	20.1 C	+0.22 C
1971	20.5 C	+0.60 C
1972	20.7 C	+0.75 C
1973	19.7 C	-0.24 C
1974	20.4 C	+0.46 C
1975	20.0 C	+0.13 C
1976	18.9 C	-1.03 C
1977	20.4 C	+0.45 C
1978	19.9 C	0.00 C
1979	20.4 C	+0.46 C
1980	20.8 C	+0.86 C
1981	20.4 C	+0.44 C
1982	21.2 C	+1.27 C
1983	19.9 C	-0.03 C
1984	19.9 C	-0.03 C
1985	20.1 C	+0.18 C
1988	19.7 C	-0.22 C
1989	20.3 C	+0.38 C
1990	20.0 C	+0.07 C
1991	19.7 C	-0.21 C
1992	20.0 C	+0.04 C
1993	19.9 C	+0.01 C
1995	21.2 C	+1.29 C
1996	19.8 C	-0.16 C
1997	18.9 C	-1.03 C
1998	20.0 C	+0.12 C
1999	19.4 C	-0.47 C
2000	19.5 C	-0.40 C
2001	18.7 C	-1.19 C
2002	19.1 C	-0.86 C
2003	20.0 C	+0.12 C
2004	19.3 C	-0.59 C
2005	20.1 C	+0.16 C
2007	19.7 C	-0.19 C
2008	19.7 C	-0.19 C

The fitted trend in annual mean temperature here over 1962 to 2008 is -0.09 C (-0.22 to 0.04) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.2 F (-0.4 to 0.1) per decade. The slope is a straight line fitted to 42 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Parras
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.09 C (-0.22 to 0.04) per decade	-0.2 F (-0.4 to 0.1) per decade	1962 to 2008	42	Not clearly different from zero
Mean daily maximum	0.1 C (-0.1 to 0.2) per decade	0.1 F (-0.2 to 0.4) per decade	1962 to 2008	42	Not clearly different from zero
Mean daily minimum	-0.2 C (-0.4 to -0.1) per decade	-0.4 F (-0.7 to -0.2) per decade	1962 to 2008	42	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

1957 to 2009

Yearly extremes at Parras: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	43.9 C (111.0 F)	1992	37.8 C (100.0 F)	50
Coldest night (TNn)	-11.1 C (12.0 F)	1962	-2.2 C (28.0 F)	50
Wettest day (Rx1day)	129.8 mm (5.1 in)	1989	40.7 mm (1.6 in)	50
Wettest five days (Rx5day)	266.3 mm (10.5 in)	1989	66.4 mm (2.6 in)	50
Longest dry spell (CDD)	157 days	1998	69 days	50

Hottest day (TXx)

The hottest day of the year at Parras, 1957 to 2009. The record is 43.9 C (111.0 F) in 1992, marked on the chart; the median year is 37.8 C (100.0 F).

Hottest day (TXx) at Parras by year
Year	Hottest day (TXx)
1957	36.1 C (97.0 F)
1961	37.8 C (100.0 F)
1962	38.9 C (102.0 F)
1963	36.7 C (98.1 F)
1964	37.2 C (99.0 F)
1965	36.7 C (98.1 F)
1966	36.7 C (98.1 F)
1967	37.2 C (99.0 F)
1968	37.8 C (100.0 F)
1969	37.8 C (100.0 F)
1970	40.0 C (104.0 F)
1971	38.3 C (100.9 F)
1972	37.8 C (100.0 F)
1973	37.8 C (100.0 F)
1974	39.4 C (102.9 F)
1975	37.8 C (100.0 F)
1976	37.2 C (99.0 F)
1977	36.7 C (98.1 F)
1978	38.9 C (102.0 F)
1979	38.3 C (100.9 F)
1980	40.0 C (104.0 F)
1981	37.8 C (100.0 F)
1982	41.7 C (107.1 F)
1983	39.4 C (102.9 F)
1984	37.2 C (99.0 F)
1985	41.7 C (107.1 F)
1986	37.8 C (100.0 F)
1987	40.6 C (105.1 F)
1988	37.8 C (100.0 F)
1989	42.8 C (109.0 F)
1990	38.9 C (102.0 F)
1991	38.9 C (102.0 F)
1992	43.9 C (111.0 F)
1993	38.9 C (102.0 F)
1994	35.6 C (96.1 F)
1995	40.0 C (104.0 F)
1996	37.8 C (100.0 F)
1997	37.8 C (100.0 F)
1998	38.9 C (102.0 F)
1999	35.6 C (96.1 F)
2000	36.7 C (98.1 F)
2001	35.6 C (96.1 F)
2002	37.8 C (100.0 F)
2003	40.0 C (104.0 F)
2004	37.8 C (100.0 F)
2005	38.9 C (102.0 F)
2006	37.8 C (100.0 F)
2007	37.8 C (100.0 F)
2008	37.8 C (100.0 F)
2009	38.9 C (102.0 F)

Coldest night (TNn)

The coldest night of the year at Parras, 1957 to 2009. The record is -11.1 C (12.0 F) in 1962, marked on the chart; the median year is -2.2 C (28.0 F).

Coldest night (TNn) at Parras by year
Year	Coldest night (TNn)
1957	1.1 C (34.0 F)
1961	1.1 C (34.0 F)
1962	-11.1 C (12.0 F)
1963	-5.6 C (21.9 F)
1964	-4.4 C (24.1 F)
1965	-3.3 C (26.1 F)
1966	-2.2 C (28.0 F)
1967	-5.6 C (21.9 F)
1968	-1.1 C (30.0 F)
1969	0.0 C (32.0 F)
1970	-1.7 C (28.9 F)
1971	-5.6 C (21.9 F)
1972	-0.6 C (30.9 F)
1973	-2.8 C (27.0 F)
1974	-2.2 C (28.0 F)
1975	-4.4 C (24.1 F)
1976	-3.3 C (26.1 F)
1977	0.0 C (32.0 F)
1978	-1.7 C (28.9 F)
1979	-3.3 C (26.1 F)
1980	-2.8 C (27.0 F)
1981	-1.1 C (30.0 F)
1982	-1.1 C (30.0 F)
1983	-6.7 C (19.9 F)
1984	-3.3 C (26.1 F)
1985	-5.0 C (23.0 F)
1986	-1.7 C (28.9 F)
1987	-1.1 C (30.0 F)
1988	-1.1 C (30.0 F)
1989	-0.6 C (30.9 F)
1990	-3.3 C (26.1 F)
1991	-1.1 C (30.0 F)
1992	-3.3 C (26.1 F)
1993	0.0 C (32.0 F)
1994	-1.1 C (30.0 F)
1995	-1.1 C (30.0 F)
1996	-5.0 C (23.0 F)
1997	-8.3 C (17.1 F)
1998	-0.6 C (30.9 F)
1999	-3.3 C (26.1 F)
2000	-2.2 C (28.0 F)
2001	-4.4 C (24.1 F)
2002	-4.4 C (24.1 F)
2003	-4.4 C (24.1 F)
2004	-6.1 C (21.0 F)
2005	0.6 C (33.1 F)
2006	-2.2 C (28.0 F)
2007	-7.2 C (19.0 F)
2008	-2.2 C (28.0 F)
2009	1.7 C (35.1 F)

Wettest day (Rx1day)

The wettest day of the year at Parras, 1957 to 2009. The record is 129.8 mm (5.1 in) in 1989, marked on the chart; the median year is 40.7 mm (1.6 in).

Wettest day (Rx1day) at Parras by year
Year	Wettest day (Rx1day)
1957	32.0 mm (1.3 in)
1961	31.5 mm (1.2 in)
1962	43.7 mm (1.7 in)
1963	34.3 mm (1.4 in)
1964	40.4 mm (1.6 in)
1965	40.9 mm (1.6 in)
1966	25.4 mm (1.0 in)
1967	63.8 mm (2.5 in)
1968	44.2 mm (1.7 in)
1969	15.0 mm (0.6 in)
1970	39.4 mm (1.6 in)
1971	38.4 mm (1.5 in)
1972	42.2 mm (1.7 in)
1973	44.5 mm (1.8 in)
1974	19.6 mm (0.8 in)
1975	37.8 mm (1.5 in)
1976	50.8 mm (2.0 in)
1977	35.3 mm (1.4 in)
1978	61.0 mm (2.4 in)
1979	27.9 mm (1.1 in)
1980	28.2 mm (1.1 in)
1981	38.1 mm (1.5 in)
1982	53.8 mm (2.1 in)
1983	68.8 mm (2.7 in)
1984	73.2 mm (2.9 in)
1985	39.9 mm (1.6 in)
1986	57.9 mm (2.3 in)
1987	52.6 mm (2.1 in)
1988	43.9 mm (1.7 in)
1989	129.8 mm (5.1 in)
1990	52.3 mm (2.1 in)
1991	28.4 mm (1.1 in)
1992	31.0 mm (1.2 in)
1993	39.9 mm (1.6 in)
1994	56.9 mm (2.2 in)
1995	26.9 mm (1.1 in)
1996	27.9 mm (1.1 in)
1997	122.2 mm (4.8 in)
1998	14.0 mm (0.6 in)
1999	23.9 mm (0.9 in)
2000	61.0 mm (2.4 in)
2001	20.8 mm (0.8 in)
2002	38.4 mm (1.5 in)
2003	52.8 mm (2.1 in)
2004	40.9 mm (1.6 in)
2005	42.9 mm (1.7 in)
2006	35.8 mm (1.4 in)
2007	45.0 mm (1.8 in)
2008	45.0 mm (1.8 in)
2009	41.9 mm (1.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Parras, 1957 to 2009. The record is 266.3 mm (10.5 in) in 1989, marked on the chart; the median year is 66.4 mm (2.6 in).

Wettest five days (Rx5day) at Parras by year
Year	Wettest five days (Rx5day)
1957	42.5 mm (1.7 in)
1961	63.9 mm (2.5 in)
1962	52.6 mm (2.1 in)
1963	54.6 mm (2.1 in)
1964	44.2 mm (1.7 in)
1965	68.6 mm (2.7 in)
1966	51.0 mm (2.0 in)
1967	138.2 mm (5.4 in)
1968	84.9 mm (3.3 in)
1969	22.9 mm (0.9 in)
1970	43.5 mm (1.7 in)
1971	83.4 mm (3.3 in)
1972	60.8 mm (2.4 in)
1973	81.8 mm (3.2 in)
1974	44.8 mm (1.8 in)
1975	62.7 mm (2.5 in)
1976	94.3 mm (3.7 in)
1977	69.9 mm (2.8 in)
1978	102.2 mm (4.0 in)
1979	60.4 mm (2.4 in)
1980	42.4 mm (1.7 in)
1981	59.2 mm (2.3 in)
1982	82.0 mm (3.2 in)
1983	85.6 mm (3.4 in)
1984	74.7 mm (2.9 in)
1985	76.5 mm (3.0 in)
1986	81.0 mm (3.2 in)
1987	76.5 mm (3.0 in)
1988	80.7 mm (3.2 in)
1989	266.3 mm (10.5 in)
1990	74.4 mm (2.9 in)
1991	62.5 mm (2.5 in)
1992	32.3 mm (1.3 in)
1993	63.5 mm (2.5 in)
1994	65.8 mm (2.6 in)
1995	28.2 mm (1.1 in)
1996	41.6 mm (1.6 in)
1997	123.5 mm (4.9 in)
1998	29.3 mm (1.2 in)
1999	45.3 mm (1.8 in)
2000	69.7 mm (2.7 in)
2001	33.3 mm (1.3 in)
2002	63.2 mm (2.5 in)
2003	90.1 mm (3.5 in)
2004	71.7 mm (2.8 in)
2005	74.4 mm (2.9 in)
2006	71.1 mm (2.8 in)
2007	59.2 mm (2.3 in)
2008	82.6 mm (3.3 in)
2009	67.1 mm (2.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Parras, 1957 to 2009. The record is 157 days in 1998, marked on the chart; the median year is 69 days.

Longest dry spell (CDD) at Parras by year
Year	Longest dry spell (CDD)
1957	15 days
1961	58 days
1962	78 days
1963	88 days
1964	66 days
1965	68 days
1966	73 days
1967	48 days
1968	42 days
1969	78 days
1970	91 days
1971	119 days
1972	45 days
1973	55 days
1974	45 days
1975	97 days
1976	91 days
1977	87 days
1978	49 days
1979	70 days
1980	72 days
1981	42 days
1982	55 days
1983	75 days
1984	99 days
1985	72 days
1986	64 days
1987	79 days
1988	64 days
1989	55 days
1990	76 days
1991	120 days
1992	32 days
1993	111 days
1994	53 days
1995	145 days
1996	123 days
1997	36 days
1998	157 days
1999	86 days
2000	55 days
2001	45 days
2002	59 days
2003	66 days
2004	45 days
2005	76 days
2006	83 days
2007	66 days
2008	117 days
2009	35 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

31 years with a frost

Across 31 years with a frost, the median last spring frost at Parras falls on 13 February and the median first autumn frost on 9 December, which leaves a median of 291 days between them.

Fitted over all years, the growing season changes by -0.4 days per decade at this station.

Frost dates and growing season at Parras
Measure	Median, all years	Earliest period	Recent period (1966 to 2008)	Recent against earliest	Fitted trend
Last spring frost	13 February	n/a	13 February	n/a	+0.3 days per decade
First autumn frost	9 December	n/a	9 December	n/a	-0.1 days per decade
Growing days	291 days	n/a	295 days	n/a	-0.4 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, 1961 to 2008

A day with at least 39.2 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 120.4 mm (4.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Parras: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	39.2 mm (1.5 in)
5 years	56.3 mm (2.2 in)
10 years	69.2 mm (2.7 in)
25 years	87.8 mm (3.5 in)
50 years	103.3 mm (4.1 in)	Longer than the 47 years of record
100 years	120.4 mm (4.7 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 1961 to 2008.

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: 129.8 mm (5.1 in) in 1989; 122.2 mm (4.8 in) in 1997; 73.2 mm (2.9 in) in 1984.

Download the Data

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