Los Herreras Weather Records (MXN00019041)

Record envelope, standing records and threshold days for Los Herreras (MXN00019041), Mexico, with 69 years of record.

Key Facts for Los Herreras

Los Herreras (MXN00019041) is a weather station in Mexico at 25.88 latitude and -99.40 longitude, 140 m (459 ft) above sea level.
The station reports from 1943 to 2011, 69 years of record.
1,464 records set at Los Herreras still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Los Herreras tied a daily record high minimum temperature of 20.0 C (68.0 F) on 21 November 2011.

About the Station

Location: Mexico, 25.88 latitude, -99.40 longitude.
Elevation: 140 m (459 ft).
Period of record: 1943 to 2011, 69 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 Los Herreras. 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 Los Herreras, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	38.9 C (102.0 F)	-13.3 C (8.1 F)	n/a	n/a
Feb	41.7 C (107.1 F)	-8.9 C (16.0 F)	n/a	n/a
Mar	45.0 C (113.0 F)	-2.2 C (28.0 F)	n/a	n/a
Apr	43.9 C (111.0 F)	2.8 C (37.0 F)	n/a	n/a
May	46.7 C (116.1 F)	6.7 C (44.1 F)	n/a	n/a
Jun	48.3 C (118.9 F)	13.3 C (55.9 F)	n/a	n/a
Jul	47.2 C (117.0 F)	15.6 C (60.1 F)	n/a	n/a
Aug	45.6 C (114.1 F)	15.0 C (59.0 F)	n/a	n/a
Sep	41.7 C (107.1 F)	8.9 C (48.0 F)	n/a	n/a
Oct	42.8 C (109.0 F)	1.7 C (35.1 F)	n/a	n/a
Nov	38.9 C (102.0 F)	-8.3 C (17.1 F)	n/a	n/a
Dec	38.9 C (102.0 F)	-12.2 C (10.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Los Herreras still stand. 1960 holds the most, with 104.

Standing records at Los Herreras by the year they were set
Year set	Standing records
1943	52
1944	37
1945	55
1946	36
1947	31
1948	34
1949	32
1950	36
1951	27
1952	31
1953	21
1954	14
1955	26
1956	18
1957	22
1958	21
1959	51
1960	104
1961	48
1962	22
1963	21
1964	31
1965	20
1966	18
1967	42
1970	23
1971	22
1972	21
1973	17
1974	23
1975	28
1976	32
1977	18
1978	18
1979	58
1980	40
1981	18
1982	35
1983	67
1984	13
1985	39
1986	16
1997	3
1998	24
1999	14
2000	4
2008	25
2009	23
2010	10
2011	23

All-Time Record Progression

2 new records

2 all-time records were set at Los Herreras between 25 December 1983 and 15 June 1998. Each dot is a new record.

When Los Herreras set new all-time records
Date	Kind	Detail
1983-12-25	Record low maximum temperature	Record low maximum temperature -4.4 C (24.1 F)
1998-06-15	Record high maximum temperature	Record high maximum temperature 48.3 C (118.9 F)

Wettest Day of Each Month

Sep: 269.7 mm (10.6 in)

The wettest day on record for each calendar month at Los Herreras. The most was 269.7 mm (10.6 in) on 21 September 1967.

Record daily precipitation for each month at Los Herreras
Month	Record daily precipitation (mm)	Date
Jan	38.1 mm (1.5 in)	3 January 1943
Feb	81.8 mm (3.2 in)	16 February 1957
Mar	51.6 mm (2.0 in)	12 March 1974
Apr	115.3 mm (4.5 in)	26 April 1967
May	131.3 mm (5.2 in)	18 May 1954
Jun	62.5 mm (2.5 in)	24 June 1983
Jul	159.0 mm (6.3 in)	13 July 1975
Aug	149.4 mm (5.9 in)	22 August 1944
Sep	269.7 mm (10.6 in)	21 September 1967
Oct	259.8 mm (10.2 in)	16 October 1960
Nov	39.9 mm (1.6 in)	30 November 2009
Dec	30.0 mm (1.2 in)	8 December 1982

Period of Record Coverage

1943 to 2011

50 years of record at Los Herreras, 1943 to 2011. 9 years have data for under 90 percent of days and are left out of rankings: 1950, 1967, 1970, 1983, 1984, 1986, 1997, 1999 and others.

Days with data per year at Los Herreras
Year	Days with data	Share of year	Complete
1943	360	99%	Yes
1944	362	99%	Yes
1945	361	99%	Yes
1946	359	98%	Yes
1947	358	98%	Yes
1948	358	98%	Yes
1949	356	98%	Yes
1950	327	90%	No
1951	353	97%	Yes
1952	364	99%	Yes
1953	359	98%	Yes
1954	364	100%	Yes
1955	357	98%	Yes
1956	363	99%	Yes
1957	359	98%	Yes
1958	361	99%	Yes
1959	362	99%	Yes
1960	365	100%	Yes
1961	363	99%	Yes
1962	360	99%	Yes
1963	360	99%	Yes
1964	363	99%	Yes
1965	359	98%	Yes
1966	362	99%	Yes
1967	261	72%	No
1970	243	67%	No
1971	341	93%	Yes
1972	338	92%	Yes
1973	331	91%	Yes
1974	330	90%	Yes
1975	360	99%	Yes
1976	360	98%	Yes
1977	362	99%	Yes
1978	358	98%	Yes
1979	353	97%	Yes
1980	364	99%	Yes
1981	362	99%	Yes
1982	355	97%	Yes
1983	302	83%	No
1984	148	40%	No
1985	355	97%	Yes
1986	301	82%	No
1997	25	7%	No
1998	333	91%	Yes
1999	283	78%	No
2000	178	49%	No
2008	364	99%	Yes
2009	359	98%	Yes
2010	364	100%	Yes
2011	351	96%	Yes

Latest Records

Latest records at Los Herreras
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 November 2011	Los Herreras, MX	daily high min (Tie)	20.0 C (68.0 F)	tie	33 years	4 of 100 (Routine)
19 November 2011	Los Herreras, MX	daily high max (Tie)	35.0 C (95.0 F)	tie	60 years	6 of 100 (Routine)
16 November 2011	Los Herreras, MX	daily high max	33.9 C (93.0 F)	1.7 C (3.1 F)	29 years	17 of 100 (Routine)
9 November 2011	Los Herreras, MX	daily high min (Tie)	18.9 C (66.0 F)	tie	64 years	6 of 100 (Routine)
8 November 2011	Los Herreras, MX	daily high min (Tie)	20.6 C (69.1 F)	tie	48 years	5 of 100 (Routine)
25 October 2011	Los Herreras, MX	daily high max (Tie)	35.0 C (95.0 F)	tie	50 years	5 of 100 (Routine)
28 September 2011	Los Herreras, MX	daily high max (Tie)	38.9 C (102.0 F)	tie	44 years	4 of 100 (Routine)
17 September 2011	Los Herreras, MX	daily rain	50.8 mm (2.0 in)	22.4 mm (0.9 in)	12 years	16 of 100 (Routine)
16 September 2011	Los Herreras, MX	daily high min (Tie)	25.0 C (77.0 F)	tie	60 years	6 of 100 (Routine)
5 September 2011	Los Herreras, MX	monthly high min (Tie)	27.8 C (82.0 F)	tie	68 years	9 of 100 (Routine)
4 September 2011	Los Herreras, MX	daily high min	26.7 C (80.1 F)	0.6 C (1.1 F)	40 years	19 of 100 (Routine)
4 September 2011	Los Herreras, MX	daily high max (Tie)	40.0 C (104.0 F)	tie	25 years	3 of 100 (Routine)
3 September 2011	Los Herreras, MX	daily high max (Tie)	40.6 C (105.1 F)	tie	25 years	3 of 100 (Routine)
29 August 2011	Los Herreras, MX	daily high max (Tie)	40.0 C (104.0 F)	tie	46 years	5 of 100 (Routine)
9 August 2011	Los Herreras, MX	daily high min (Tie)	25.6 C (78.1 F)	tie	0 years	1 of 100 (Routine)
24 July 2011	Los Herreras, MX	daily high min (Tie)	25.6 C (78.1 F)	tie	68 years	6 of 100 (Routine)
23 July 2011	Los Herreras, MX	daily high min	26.7 C (80.1 F)	0.6 C (1.1 F)	65 years	28 of 100 (Routine)
21 July 2011	Los Herreras, MX	daily high min (Tie)	25.6 C (78.1 F)	tie	66 years	6 of 100 (Routine)
16 July 2011	Los Herreras, MX	daily high min (Tie)	25.6 C (78.1 F)	tie	64 years	6 of 100 (Routine)
2 July 2011	Los Herreras, MX	daily low max (Tie)	30.0 C (86.0 F)	tie	48 years	5 of 100 (Routine)

Climate Trend

37 complete years, 1943 to 2011

One stripe for each of 37 complete years at Los Herreras, 1943 to 2011. Blue stripes are years cooler than the station's own mean of 23.1 C (73.5 F); red stripes are warmer. The coolest year was 1979, at 21.1 C (70.0 F), and the warmest was 2011, at 24.9 C (76.7 F). The strongest colour marks a difference of 2.0 C (3.6 F).

Annual mean temperature at Los Herreras as warming stripes, 1943 to 2011
Year	Annual mean temperature	Difference from the station mean
1943	23.4 C	+0.35 C
1944	23.2 C	+0.10 C
1945	24.3 C	+1.28 C
1946	24.1 C	+1.07 C
1947	23.1 C	-0.01 C
1948	23.1 C	+0.06 C
1949	23.4 C	+0.32 C
1951	23.3 C	+0.26 C
1952	22.6 C	-0.51 C
1953	23.3 C	+0.23 C
1954	23.4 C	+0.34 C
1955	22.9 C	-0.15 C
1956	23.2 C	+0.15 C
1957	23.6 C	+0.50 C
1958	21.7 C	-1.39 C
1959	21.4 C	-1.71 C
1960	23.3 C	+0.28 C
1961	23.0 C	-0.08 C
1962	23.4 C	+0.34 C
1963	23.1 C	+0.03 C
1964	23.2 C	+0.09 C
1965	23.2 C	+0.13 C
1966	21.3 C	-1.74 C
1975	22.4 C	-0.63 C
1976	21.2 C	-1.87 C
1977	22.5 C	-0.55 C
1978	22.5 C	-0.59 C
1979	21.1 C	-1.95 C
1980	22.0 C	-1.10 C
1981	23.0 C	-0.06 C
1982	23.8 C	+0.73 C
1985	23.8 C	+0.71 C
1998	24.7 C	+1.67 C
2008	23.6 C	+0.51 C
2009	24.4 C	+1.34 C
2010	23.0 C	-0.08 C
2011	24.9 C	+1.79 C

The fitted trend in annual mean temperature here over 1943 to 2011 is 0.1 C (-0.1 to 0.2) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.2 to 0.4) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Los Herreras
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.1 C (-0.1 to 0.2) per decade	0.1 F (-0.2 to 0.4) per decade	1943 to 2011	37	Not clearly different from zero
Mean daily maximum	0.15 C (-0.05 to 0.36) per decade	0.3 F (-0.1 to 0.6) per decade	1943 to 2011	37	Not clearly different from zero
Mean daily minimum	-0.01 C (-0.21 to 0.19) per decade	-0.02 F (-0.37 to 0.34) per decade	1943 to 2011	37	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

1943 to 2011

Yearly extremes at Los Herreras: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	48.3 C (118.9 F)	1998	42.5 C (108.5 F)	50
Coldest night (TNn)	-13.3 C (8.1 F)	1962	-1.7 C (28.9 F)	50
Wettest day (Rx1day)	269.7 mm (10.6 in)	1967	69.9 mm (2.8 in)	50
Wettest five days (Rx5day)	375.4 mm (14.8 in)	1975	105.6 mm (4.2 in)	50
Longest dry spell (CDD)	121 days	2011	55 days	50

Hottest day (TXx)

The hottest day of the year at Los Herreras, 1943 to 2011. The record is 48.3 C (118.9 F) in 1998, marked on the chart; the median year is 42.5 C (108.5 F).

Hottest day (TXx) at Los Herreras by year
Year	Hottest day (TXx)
1943	40.6 C (105.1 F)
1944	40.6 C (105.1 F)
1945	42.8 C (109.0 F)
1946	41.7 C (107.1 F)
1947	41.7 C (107.1 F)
1948	43.3 C (109.9 F)
1949	42.8 C (109.0 F)
1950	43.3 C (109.9 F)
1951	45.0 C (113.0 F)
1952	45.0 C (113.0 F)
1953	42.2 C (108.0 F)
1954	45.0 C (113.0 F)
1955	43.9 C (111.0 F)
1956	41.7 C (107.1 F)
1957	41.1 C (106.0 F)
1958	42.2 C (108.0 F)
1959	45.0 C (113.0 F)
1960	47.2 C (117.0 F)
1961	43.9 C (111.0 F)
1962	42.2 C (108.0 F)
1963	43.9 C (111.0 F)
1964	41.1 C (106.0 F)
1965	40.6 C (105.1 F)
1966	38.9 C (102.0 F)
1967	42.8 C (109.0 F)
1970	42.2 C (108.0 F)
1971	40.6 C (105.1 F)
1972	40.0 C (104.0 F)
1973	43.9 C (111.0 F)
1974	43.9 C (111.0 F)
1975	40.6 C (105.1 F)
1976	37.2 C (99.0 F)
1977	40.0 C (104.0 F)
1978	40.6 C (105.1 F)
1979	43.3 C (109.9 F)
1980	43.3 C (109.9 F)
1981	41.1 C (106.0 F)
1982	43.3 C (109.9 F)
1983	45.0 C (113.0 F)
1984	41.7 C (107.1 F)
1985	42.8 C (109.0 F)
1986	41.7 C (107.1 F)
1997	35.0 C (95.0 F)
1998	48.3 C (118.9 F)
1999	43.9 C (111.0 F)
2000	43.9 C (111.0 F)
2008	42.8 C (109.0 F)
2009	41.7 C (107.1 F)
2010	40.6 C (105.1 F)
2011	42.8 C (109.0 F)

Coldest night (TNn)

The coldest night of the year at Los Herreras, 1943 to 2011. The record is -13.3 C (8.1 F) in 1962, marked on the chart; the median year is -1.7 C (28.9 F).

Coldest night (TNn) at Los Herreras by year
Year	Coldest night (TNn)
1943	-1.7 C (28.9 F)
1944	-3.3 C (26.1 F)
1945	0.0 C (32.0 F)
1946	-2.2 C (28.0 F)
1947	0.0 C (32.0 F)
1948	-2.2 C (28.0 F)
1949	-9.4 C (15.1 F)
1950	-3.9 C (25.0 F)
1951	-8.9 C (16.0 F)
1952	0.0 C (32.0 F)
1953	-1.7 C (28.9 F)
1954	-1.1 C (30.0 F)
1955	-1.1 C (30.0 F)
1956	0.0 C (32.0 F)
1957	-1.1 C (30.0 F)
1958	-1.1 C (30.0 F)
1959	0.0 C (32.0 F)
1960	-0.6 C (30.9 F)
1961	-1.7 C (28.9 F)
1962	-13.3 C (8.1 F)
1963	-5.0 C (23.0 F)
1964	-5.0 C (23.0 F)
1965	0.0 C (32.0 F)
1966	-6.1 C (21.0 F)
1967	-3.3 C (26.1 F)
1970	0.0 C (32.0 F)
1971	-2.2 C (28.0 F)
1972	-1.1 C (30.0 F)
1973	-1.1 C (30.0 F)
1974	0.0 C (32.0 F)
1975	-2.2 C (28.0 F)
1976	-3.3 C (26.1 F)
1977	-5.0 C (23.0 F)
1978	-7.2 C (19.0 F)
1979	-8.3 C (17.1 F)
1980	-1.1 C (30.0 F)
1981	0.0 C (32.0 F)
1982	0.0 C (32.0 F)
1983	-12.2 C (10.0 F)
1984	-8.3 C (17.1 F)
1985	-5.0 C (23.0 F)
1986	-1.1 C (30.0 F)
1997	5.0 C (41.0 F)
1998	-2.2 C (28.0 F)
1999	-3.9 C (25.0 F)
2000	0.0 C (32.0 F)
2008	2.8 C (37.0 F)
2009	1.7 C (35.1 F)
2010	-1.1 C (30.0 F)
2011	-7.2 C (19.0 F)

Wettest day (Rx1day)

The wettest day of the year at Los Herreras, 1943 to 2011. The record is 269.7 mm (10.6 in) in 1967, marked on the chart; the median year is 69.9 mm (2.8 in).

Wettest day (Rx1day) at Los Herreras by year
Year	Wettest day (Rx1day)
1943	70.1 mm (2.8 in)
1944	149.4 mm (5.9 in)
1945	37.6 mm (1.5 in)
1946	59.9 mm (2.4 in)
1947	64.8 mm (2.6 in)
1948	251.5 mm (9.9 in)
1949	47.0 mm (1.9 in)
1950	57.9 mm (2.3 in)
1951	104.9 mm (4.1 in)
1952	34.3 mm (1.4 in)
1953	84.6 mm (3.3 in)
1954	131.3 mm (5.2 in)
1955	74.4 mm (2.9 in)
1956	19.1 mm (0.8 in)
1957	112.8 mm (4.4 in)
1958	79.8 mm (3.1 in)
1959	27.9 mm (1.1 in)
1960	259.8 mm (10.2 in)
1961	62.5 mm (2.5 in)
1962	60.5 mm (2.4 in)
1963	47.8 mm (1.9 in)
1964	84.3 mm (3.3 in)
1965	78.5 mm (3.1 in)
1966	45.0 mm (1.8 in)
1967	269.7 mm (10.6 in)
1970	71.6 mm (2.8 in)
1971	81.3 mm (3.2 in)
1972	206.2 mm (8.1 in)
1973	70.4 mm (2.8 in)
1974	51.6 mm (2.0 in)
1975	159.0 mm (6.3 in)
1976	107.7 mm (4.2 in)
1977	124.0 mm (4.9 in)
1978	99.6 mm (3.9 in)
1979	47.5 mm (1.9 in)
1980	51.8 mm (2.0 in)
1981	97.8 mm (3.9 in)
1982	51.8 mm (2.0 in)
1983	69.9 mm (2.8 in)
1984	30.0 mm (1.2 in)
1985	57.4 mm (2.3 in)
1986	48.8 mm (1.9 in)
1997	24.4 mm (1.0 in)
1998	62.5 mm (2.5 in)
1999	26.4 mm (1.0 in)
2000	117.9 mm (4.6 in)
2008	79.8 mm (3.1 in)
2009	45.0 mm (1.8 in)
2010	69.9 mm (2.8 in)
2011	50.8 mm (2.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Los Herreras, 1943 to 2011. The record is 375.4 mm (14.8 in) in 1975, marked on the chart; the median year is 105.6 mm (4.2 in).

Wettest five days (Rx5day) at Los Herreras by year
Year	Wettest five days (Rx5day)
1943	75.4 mm (3.0 in)
1944	202.7 mm (8.0 in)
1945	65.6 mm (2.6 in)
1946	63.5 mm (2.5 in)
1947	71.9 mm (2.8 in)
1948	279.2 mm (11.0 in)
1949	86.8 mm (3.4 in)
1950	58.7 mm (2.3 in)
1951	168.2 mm (6.6 in)
1952	74.3 mm (2.9 in)
1953	175.6 mm (6.9 in)
1954	131.3 mm (5.2 in)
1955	103.2 mm (4.1 in)
1956	27.1 mm (1.1 in)
1957	159.5 mm (6.3 in)
1958	151.1 mm (5.9 in)
1959	41.5 mm (1.6 in)
1960	281.2 mm (11.1 in)
1961	152.7 mm (6.0 in)
1962	60.5 mm (2.4 in)
1963	99.4 mm (3.9 in)
1964	131.1 mm (5.2 in)
1965	121.6 mm (4.8 in)
1966	137.9 mm (5.4 in)
1967	333.5 mm (13.1 in)
1970	102.6 mm (4.0 in)
1971	124.2 mm (4.9 in)
1972	324.8 mm (12.8 in)
1973	154.1 mm (6.1 in)
1974	53.4 mm (2.1 in)
1975	375.4 mm (14.8 in)
1976	112.0 mm (4.4 in)
1977	124.8 mm (4.9 in)
1978	224.8 mm (8.9 in)
1979	92.0 mm (3.6 in)
1980	61.7 mm (2.4 in)
1981	108.0 mm (4.3 in)
1982	52.6 mm (2.1 in)
1983	178.4 mm (7.0 in)
1984	42.2 mm (1.7 in)
1985	74.5 mm (2.9 in)
1986	102.8 mm (4.0 in)
1997	25.7 mm (1.0 in)
1998	65.0 mm (2.6 in)
1999	42.0 mm (1.7 in)
2000	117.9 mm (4.6 in)
2008	184.5 mm (7.3 in)
2009	59.7 mm (2.4 in)
2010	124.5 mm (4.9 in)
2011	73.7 mm (2.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Los Herreras, 1943 to 2011. The record is 121 days in 2011, marked on the chart; the median year is 55 days.

Longest dry spell (CDD) at Los Herreras by year
Year	Longest dry spell (CDD)
1943	71 days
1944	45 days
1945	40 days
1946	72 days
1947	44 days
1948	70 days
1949	32 days
1950	61 days
1951	58 days
1952	54 days
1953	51 days
1954	64 days
1955	33 days
1956	71 days
1957	57 days
1958	40 days
1959	59 days
1960	35 days
1961	86 days
1962	52 days
1963	47 days
1964	55 days
1965	47 days
1966	78 days
1967	45 days
1970	74 days
1971	44 days
1972	32 days
1973	45 days
1974	40 days
1975	52 days
1976	51 days
1977	38 days
1978	54 days
1979	74 days
1980	78 days
1981	66 days
1982	68 days
1983	70 days
1984	28 days
1985	55 days
1986	56 days
1997	13 days
1998	56 days
1999	45 days
2000	27 days
2008	99 days
2009	72 days
2010	79 days
2011	121 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

22 years with a frost

Across 22 years with a frost, the median last spring frost at Los Herreras falls on 11 February and the median first autumn frost on 11 December, which leaves a median of 298 days between them.

Frost dates and growing season at Los Herreras
Measure	Median, all years	Earliest period	Recent period (1943 to 1985)	Recent against earliest	Fitted trend
Last spring frost	11 February	n/a	11 February	n/a	n/a
First autumn frost	11 December	n/a	11 December	n/a	n/a
Growing days	298 days	n/a	298 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

43 years, 1943 to 2011

A day with at least 68.8 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 314.3 mm (12.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Los Herreras: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	68.8 mm (2.7 in)
5 years	108.5 mm (4.3 in)
10 years	142.9 mm (5.6 in)
25 years	198.5 mm (7.8 in)
50 years	250.8 mm (9.9 in)	Longer than the 43 years of record
100 years	314.3 mm (12.4 in)	Longer than the 43 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, 43 years of values from 1943 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: 259.8 mm (10.2 in) in 1960; 251.5 mm (9.9 in) in 1948; 206.2 mm (8.1 in) in 1972.

Download the Data

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