Las Pilas del Rio Frio Weather Records (MXN00012054)

Record envelope, standing records and threshold days for Las Pilas del Rio Frio (MXN00012054), Mexico, with 46 years of record.

Key Facts for Las Pilas del Rio Frio

Las Pilas del Rio Frio (MXN00012054) is a weather station in Mexico at 17.82 latitude and -101.07 longitude, 1,338 m (4,389 ft) above sea level.
The station reports from 1967 to 2012, 46 years of record.
1,464 records set at Las Pilas del Rio Frio still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Las Pilas del Rio Frio set a daily record precipitation of 49.8 mm (2.0 in) on 30 August 2012.

About the Station

Location: Mexico, 17.82 latitude, -101.07 longitude.
Elevation: 1,338 m (4,389 ft).
Period of record: 1967 to 2012, 46 years.
Eligible elements: 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 Las Pilas del Rio Frio. 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 Las Pilas del Rio Frio, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	36.7 C (98.1 F)	6.7 C (44.1 F)	n/a	n/a
Feb	36.7 C (98.1 F)	6.7 C (44.1 F)	n/a	n/a
Mar	38.9 C (102.0 F)	7.8 C (46.0 F)	n/a	n/a
Apr	38.9 C (102.0 F)	7.8 C (46.0 F)	n/a	n/a
May	40.0 C (104.0 F)	7.8 C (46.0 F)	n/a	n/a
Jun	38.9 C (102.0 F)	7.8 C (46.0 F)	n/a	n/a
Jul	36.7 C (98.1 F)	10.0 C (50.0 F)	n/a	n/a
Aug	35.6 C (96.1 F)	10.0 C (50.0 F)	n/a	n/a
Sep	35.0 C (95.0 F)	10.0 C (50.0 F)	n/a	n/a
Oct	35.0 C (95.0 F)	10.0 C (50.0 F)	n/a	n/a
Nov	35.0 C (95.0 F)	10.0 C (50.0 F)	n/a	n/a
Dec	33.3 C (91.9 F)	10.0 C (50.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Las Pilas del Rio Frio still stand. 1977 holds the most, with 160.

Standing records at Las Pilas del Rio Frio by the year they were set
Year set	Standing records
1971	44
1977	160
1978	98
1979	148
1980	124
1981	129
1982	115
1983	8
1985	56
1986	18
1987	31
1988	24
1989	7
1990	8
1996	19
1997	20
1998	9
1999	15
2000	3
2001	2
2002	133
2003	61
2008	136
2009	71
2010	18
2011	3
2012	4

Wettest Day of Each Month

Jul: 249.9 mm (9.8 in)

The wettest day on record for each calendar month at Las Pilas del Rio Frio. The most was 249.9 mm (9.8 in) on 1 July 1996.

Record daily precipitation for each month at Las Pilas del Rio Frio
Month	Record daily precipitation (mm)	Date
Jan	69.6 mm (2.7 in)	24 January 1980
Feb	17.8 mm (0.7 in)	11 February 2002
Mar	15.7 mm (0.6 in)	21 March 1997
Apr	16.8 mm (0.7 in)	12 April 1976
May	74.9 mm (2.9 in)	18 May 1972
Jun	109.0 mm (4.3 in)	24 June 1995
Jul	249.9 mm (9.8 in)	1 July 1996
Aug	103.4 mm (4.1 in)	15 August 1970
Sep	121.9 mm (4.8 in)	3 September 1977
Oct	88.4 mm (3.5 in)	6 October 1976
Nov	39.9 mm (1.6 in)	2 November 1970
Dec	31.5 mm (1.2 in)	30 December 1995

Period of Record Coverage

1971 to 2012

28 years of record at Las Pilas del Rio Frio, 1971 to 2012. 11 years have data for under 90 percent of days and are left out of rankings: 1971, 1977, 1983, 1985, 1986, 1987, 1991, 1996 and others.

Days with data per year at Las Pilas del Rio Frio
Year	Days with data	Share of year	Complete
1971	61	17%	No
1977	284	78%	No
1978	363	99%	Yes
1979	365	100%	Yes
1980	339	93%	Yes
1981	346	95%	Yes
1982	336	92%	Yes
1983	120	33%	No
1985	316	87%	No
1986	243	67%	No
1987	276	76%	No
1988	366	100%	Yes
1989	365	100%	Yes
1990	365	100%	Yes
1991	5	1%	No
1996	231	63%	No
1997	337	92%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	366	100%	Yes
2001	365	100%	Yes
2002	232	64%	No
2003	316	87%	No
2008	335	92%	Yes
2009	365	100%	Yes
2010	149	41%	No
2011	365	100%	Yes
2012	335	92%	Yes

Latest Records

Latest records at Las Pilas del Rio Frio
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 August 2012	Las Pilas del Rio Frio, MX	daily rain	49.8 mm (2.0 in)	9.9 mm (0.39 in)	44 years	23 of 100 (Routine)
16 July 2012	Las Pilas del Rio Frio, MX	daily rain	31.0 mm (1.2 in)	3.1 mm (0.12 in)	45 years	18 of 100 (Routine)
12 July 2012	Las Pilas del Rio Frio, MX	daily rain	49.8 mm (2.0 in)	15.0 mm (0.6 in)	24 years	20 of 100 (Routine)
17 June 2012	Las Pilas del Rio Frio, MX	daily rain	31.8 mm (1.3 in)	0.3 mm (0.01 in)	24 years	11 of 100 (Routine)
22 May 2012	Las Pilas del Rio Frio, MX	daily rain	30.0 mm (1.2 in)	10.2 mm (0.4 in)	11 years	15 of 100 (Routine)
17 May 2012	Las Pilas del Rio Frio, MX	daily rain (Tie)	11.9 mm (0.5 in)	tie	9 years	1 of 100 (Routine)
9 February 2012	Las Pilas del Rio Frio, MX	daily rain	9.9 mm (0.39 in)	1.8 mm (0.07 in)	36 years	15 of 100 (Routine)
10 October 2011	Las Pilas del Rio Frio, MX	daily rain	39.9 mm (1.6 in)	0.5 mm (0.02 in)	16 years	9 of 100 (Routine)
8 October 2011	Las Pilas del Rio Frio, MX	daily rain	41.9 mm (1.6 in)	2.0 mm (0.08 in)	14 years	9 of 100 (Routine)
27 August 2011	Las Pilas del Rio Frio, MX	daily rain	37.8 mm (1.5 in)	9.9 mm (0.39 in)	42 years	23 of 100 (Routine)
23 August 2011	Las Pilas del Rio Frio, MX	daily rain	98.8 mm (3.9 in)	58.9 mm (2.3 in)	21 years	50 of 100 (Notable)
20 June 2011	Las Pilas del Rio Frio, MX	daily rain	79.8 mm (3.1 in)	39.9 mm (1.6 in)	37 years	42 of 100 (Notable)
29 May 2011	Las Pilas del Rio Frio, MX	daily rain	19.8 mm (0.8 in)	4.1 mm (0.16 in)	10 years	10 of 100 (Routine)
15 April 2011	Las Pilas del Rio Frio, MX	daily rain	5.8 mm (0.23 in)	0.2 mm (0.01 in)	32 years	13 of 100 (Routine)
3 June 2009	Las Pilas del Rio Frio, MX	daily rain (Tie)	8.4 mm (0.33 in)	tie	28 years	3 of 100 (Routine)
20 May 2009	Las Pilas del Rio Frio, MX	daily rain	7.4 mm (0.29 in)	2.6 mm (0.10 in)	27 years	14 of 100 (Routine)
15 June 2008	Las Pilas del Rio Frio, MX	daily rain	29.5 mm (1.2 in)	7.7 mm (0.30 in)	20 years	15 of 100 (Routine)
11 June 2008	Las Pilas del Rio Frio, MX	daily rain (Tie)	39.9 mm (1.6 in)	tie	36 years	3 of 100 (Routine)
4 June 2008	Las Pilas del Rio Frio, MX	daily rain	27.4 mm (1.1 in)	10.6 mm (0.4 in)	34 years	21 of 100 (Routine)
31 January 2004	Las Pilas del Rio Frio, MX	daily rain	4.8 mm (0.19 in)	2.0 mm (0.08 in)	22 years	10 of 100 (Routine)

Climate Trend

11 complete years, 1978 to 2011

One stripe for each of 11 complete years at Las Pilas del Rio Frio, 1978 to 2011. Blue stripes are years cooler than the station's own mean of 22.3 C (72.1 F); red stripes are warmer. The coolest year was 1988, at 20.5 C (68.8 F), and the warmest was 1979, at 25.4 C (77.7 F). The strongest colour marks a difference of 3.2 C (5.8 F).

Annual mean temperature at Las Pilas del Rio Frio as warming stripes, 1978 to 2011
Year	Annual mean temperature	Difference from the station mean
1978	24.5 C	+2.28 C
1979	25.4 C	+3.11 C
1988	20.5 C	-1.80 C
1989	21.5 C	-0.72 C
1990	21.5 C	-0.73 C
1998	22.4 C	+0.11 C
1999	21.8 C	-0.43 C
2000	21.3 C	-0.93 C
2001	21.5 C	-0.79 C
2009	21.8 C	-0.50 C
2011	22.7 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

1967 to 2012

Yearly extremes at Las Pilas del Rio Frio: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.0 C (104.0 F)	1980	33.9 C (93.0 F)	28
Coldest night (TNn)	6.7 C (44.1 F)	2002	10.0 C (50.0 F)	28
Wettest day (Rx1day)	249.9 mm (9.8 in)	1996	52.6 mm (2.1 in)	43
Wettest five days (Rx5day)	320.3 mm (12.6 in)	1973	124.9 mm (4.9 in)	43
Longest dry spell (CDD)	161 days	1989	109 days	43

Hottest day (TXx)

The hottest day of the year at Las Pilas del Rio Frio, 1967 to 2012. The record is 40.0 C (104.0 F) in 1980, marked on the chart; the median year is 33.9 C (93.0 F).

Hottest day (TXx) at Las Pilas del Rio Frio by year
Year	Hottest day (TXx)
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	36.7 C (98.1 F)
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	38.9 C (102.0 F)
1978	37.8 C (100.0 F)
1979	38.9 C (102.0 F)
1980	40.0 C (104.0 F)
1981	29.4 C (84.9 F)
1982	33.9 C (93.0 F)
1983	33.9 C (93.0 F)
1985	31.1 C (88.0 F)
1986	30.0 C (86.0 F)
1987	28.3 C (82.9 F)
1988	30.0 C (86.0 F)
1989	29.4 C (84.9 F)
1990	30.0 C (86.0 F)
1991	25.6 C (78.1 F)
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	35.6 C (96.1 F)
1997	34.4 C (93.9 F)
1998	33.9 C (93.0 F)
1999	32.8 C (91.0 F)
2000	31.7 C (89.1 F)
2001	33.9 C (93.0 F)
2002	35.6 C (96.1 F)
2003	37.8 C (100.0 F)
2004	n/a
2005	n/a
2008	35.6 C (96.1 F)
2009	36.7 C (98.1 F)
2010	35.0 C (95.0 F)
2011	33.9 C (93.0 F)
2012	32.8 C (91.0 F)

Coldest night (TNn)

The coldest night of the year at Las Pilas del Rio Frio, 1967 to 2012. The record is 6.7 C (44.1 F) in 2002, marked on the chart; the median year is 10.0 C (50.0 F).

Coldest night (TNn) at Las Pilas del Rio Frio by year
Year	Coldest night (TNn)
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	15.6 C (60.1 F)
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	12.8 C (55.0 F)
1978	10.6 C (51.1 F)
1979	10.0 C (50.0 F)
1980	12.8 C (55.0 F)
1981	10.0 C (50.0 F)
1982	10.0 C (50.0 F)
1983	8.3 C (46.9 F)
1985	7.8 C (46.0 F)
1986	10.0 C (50.0 F)
1987	11.7 C (53.1 F)
1988	10.6 C (51.1 F)
1989	11.7 C (53.1 F)
1990	13.9 C (57.0 F)
1991	15.0 C (59.0 F)
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	10.0 C (50.0 F)
1997	10.0 C (50.0 F)
1998	11.7 C (53.1 F)
1999	10.0 C (50.0 F)
2000	10.0 C (50.0 F)
2001	10.0 C (50.0 F)
2002	6.7 C (44.1 F)
2003	8.9 C (48.0 F)
2004	n/a
2005	n/a
2008	10.0 C (50.0 F)
2009	10.0 C (50.0 F)
2010	10.0 C (50.0 F)
2011	11.7 C (53.1 F)
2012	12.8 C (55.0 F)

Wettest day (Rx1day)

The wettest day of the year at Las Pilas del Rio Frio, 1967 to 2012. The record is 249.9 mm (9.8 in) in 1996, marked on the chart; the median year is 52.6 mm (2.1 in).

Wettest day (Rx1day) at Las Pilas del Rio Frio by year
Year	Wettest day (Rx1day)
1967	99.3 mm (3.9 in)
1968	62.0 mm (2.4 in)
1969	59.9 mm (2.4 in)
1970	103.4 mm (4.1 in)
1971	88.9 mm (3.5 in)
1972	99.8 mm (3.9 in)
1973	120.9 mm (4.8 in)
1974	34.8 mm (1.4 in)
1975	62.0 mm (2.4 in)
1976	88.4 mm (3.5 in)
1977	121.9 mm (4.8 in)
1978	91.9 mm (3.6 in)
1979	47.0 mm (1.9 in)
1980	69.6 mm (2.7 in)
1981	82.3 mm (3.2 in)
1982	59.9 mm (2.4 in)
1983	11.9 mm (0.5 in)
1985	49.8 mm (2.0 in)
1986	34.8 mm (1.4 in)
1987	39.9 mm (1.6 in)
1988	71.9 mm (2.8 in)
1989	69.9 mm (2.8 in)
1990	45.0 mm (1.8 in)
1991	29.5 mm (1.2 in)
1992	45.0 mm (1.8 in)
1993	45.0 mm (1.8 in)
1994	54.9 mm (2.2 in)
1995	109.0 mm (4.3 in)
1996	249.9 mm (9.8 in)
1997	40.9 mm (1.6 in)
1998	30.5 mm (1.2 in)
1999	24.9 mm (1.0 in)
2000	52.6 mm (2.1 in)
2001	22.4 mm (0.9 in)
2002	39.9 mm (1.6 in)
2003	89.9 mm (3.5 in)
2004	39.9 mm (1.6 in)
2005	14.0 mm (0.6 in)
2008	39.9 mm (1.6 in)
2009	9.4 mm (0.37 in)
2010	42.9 mm (1.7 in)
2011	98.8 mm (3.9 in)
2012	49.8 mm (2.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Las Pilas del Rio Frio, 1967 to 2012. The record is 320.3 mm (12.6 in) in 1973, marked on the chart; the median year is 124.9 mm (4.9 in).

Wettest five days (Rx5day) at Las Pilas del Rio Frio by year
Year	Wettest five days (Rx5day)
1967	222.7 mm (8.8 in)
1968	152.3 mm (6.0 in)
1969	133.4 mm (5.3 in)
1970	124.9 mm (4.9 in)
1971	176.5 mm (6.9 in)
1972	253.6 mm (10.0 in)
1973	320.3 mm (12.6 in)
1974	76.7 mm (3.0 in)
1975	214.1 mm (8.4 in)
1976	135.7 mm (5.3 in)
1977	236.7 mm (9.3 in)
1978	189.0 mm (7.4 in)
1979	150.9 mm (5.9 in)
1980	178.6 mm (7.0 in)
1981	211.6 mm (8.3 in)
1982	96.4 mm (3.8 in)
1983	11.9 mm (0.5 in)
1985	109.2 mm (4.3 in)
1986	56.2 mm (2.2 in)
1987	76.8 mm (3.0 in)
1988	173.1 mm (6.8 in)
1989	154.5 mm (6.1 in)
1990	81.2 mm (3.2 in)
1991	92.5 mm (3.6 in)
1992	148.2 mm (5.8 in)
1993	103.2 mm (4.1 in)
1994	64.8 mm (2.6 in)
1995	202.5 mm (8.0 in)
1996	284.7 mm (11.2 in)
1997	72.9 mm (2.9 in)
1998	114.8 mm (4.5 in)
1999	99.1 mm (3.9 in)
2000	110.3 mm (4.3 in)
2001	71.7 mm (2.8 in)
2002	90.5 mm (3.6 in)
2003	229.4 mm (9.0 in)
2004	72.7 mm (2.9 in)
2005	22.8 mm (0.9 in)
2008	86.2 mm (3.4 in)
2009	45.0 mm (1.8 in)
2010	99.6 mm (3.9 in)
2011	173.2 mm (6.8 in)
2012	150.5 mm (5.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Las Pilas del Rio Frio, 1967 to 2012. The record is 161 days in 1989, marked on the chart; the median year is 109 days.

Longest dry spell (CDD) at Las Pilas del Rio Frio by year
Year	Longest dry spell (CDD)
1967	44 days
1968	65 days
1969	82 days
1970	85 days
1971	95 days
1972	138 days
1973	93 days
1974	115 days
1975	112 days
1976	61 days
1977	109 days
1978	51 days
1979	65 days
1980	104 days
1981	42 days
1982	139 days
1983	65 days
1985	121 days
1986	107 days
1987	90 days
1988	159 days
1989	161 days
1990	133 days
1991	146 days
1992	124 days
1993	146 days
1994	141 days
1995	134 days
1996	139 days
1997	34 days
1998	156 days
1999	157 days
2000	142 days
2001	66 days
2002	89 days
2003	76 days
2004	121 days
2005	90 days
2008	155 days
2009	114 days
2010	151 days
2011	80 days
2012	96 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, 1968 to 2012

A day with at least 61.0 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 218.6 mm (8.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Las Pilas del Rio Frio: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	61.0 mm (2.4 in)
5 years	96.7 mm (3.8 in)
10 years	122.7 mm (4.8 in)
25 years	158.7 mm (6.2 in)
50 years	187.6 mm (7.4 in)	Longer than the 33 years of record
100 years	218.6 mm (8.6 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 1968 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: 249.9 mm (9.8 in) in 1996; 121.9 mm (4.8 in) in 1977; 120.9 mm (4.8 in) in 1973.

Download the Data

Data for Las Pilas del Rio Frio standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Las Pilas del Rio Frio 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).