Guadalupe Grijalva Weather Records (MXN00007070)

Record envelope, standing records and threshold days for Guadalupe Grijalva (MXN00007070), Mexico, with 53 years of record.

Key Facts for Guadalupe Grijalva

Guadalupe Grijalva (MXN00007070) is a weather station in Mexico at 15.68 latitude and -92.15 longitude, 630 m (2,066 ft) above sea level.
The station reports from 1961 to 2013, 53 years of record.
1,464 records set at Guadalupe Grijalva still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Guadalupe Grijalva tied a daily record low minimum temperature of 15.0 C (59.0 F) on 29 May 2013.

About the Station

Location: Mexico, 15.68 latitude, -92.15 longitude.
Elevation: 630 m (2,066 ft).
Period of record: 1961 to 2013, 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 Guadalupe Grijalva. 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 Guadalupe Grijalva, 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)	6.7 C (44.1 F)	n/a	n/a
Feb	39.4 C (102.9 F)	5.6 C (42.1 F)	n/a	n/a
Mar	45.6 C (114.1 F)	6.7 C (44.1 F)	n/a	n/a
Apr	45.0 C (113.0 F)	8.9 C (48.0 F)	n/a	n/a
May	41.7 C (107.1 F)	10.0 C (50.0 F)	n/a	n/a
Jun	40.0 C (104.0 F)	6.7 C (44.1 F)	n/a	n/a
Jul	39.4 C (102.9 F)	10.0 C (50.0 F)	n/a	n/a
Aug	39.4 C (102.9 F)	10.0 C (50.0 F)	n/a	n/a
Sep	39.4 C (102.9 F)	8.9 C (48.0 F)	n/a	n/a
Oct	38.9 C (102.0 F)	10.0 C (50.0 F)	n/a	n/a
Nov	38.9 C (102.0 F)	7.8 C (46.0 F)	n/a	n/a
Dec	37.8 C (100.0 F)	7.8 C (46.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Guadalupe Grijalva still stand. 1984 holds the most, with 151.

Standing records at Guadalupe Grijalva by the year they were set
Year set	Standing records
1961	42
1962	36
1963	50
1964	37
1965	43
1966	20
1967	76
1968	37
1969	69
1970	51
1971	37
1972	21
1973	4
1974	6
1975	12
1976	8
1977	18
1978	8
1979	6
1980	10
1981	8
1982	27
1983	44
1984	151
1985	75
1986	31
1987	38
1988	6
1989	7
1990	24
1991	25
1992	1
1993	1
1994	1
1996	19
1997	29
1998	46
1999	5
2000	5
2001	11
2002	5
2003	19
2004	33
2005	7
2006	81
2007	37
2008	7
2009	28
2010	22
2011	18
2012	46
2013	16

All-Time Record Progression

2 new records

2 all-time records were set at Guadalupe Grijalva between 22 September 2009 and 6 January 2013. Each dot is a new record.

When Guadalupe Grijalva set new all-time records
Date	Kind	Detail
2009-09-22	Record daily precipitation	Record daily precipitation 142.2 mm (5.6 in)
2013-01-06	Record low maximum temperature	Record low maximum temperature 15.0 C (59.0 F)

Wettest Day of Each Month

Sep: 142.2 mm (5.6 in)

The wettest day on record for each calendar month at Guadalupe Grijalva. The most was 142.2 mm (5.6 in) on 22 September 2009.

Record daily precipitation for each month at Guadalupe Grijalva
Month	Record daily precipitation (mm)	Date
Jan	39.9 mm (1.6 in)	4 January 1986
Feb	59.9 mm (2.4 in)	25 February 1983
Mar	36.8 mm (1.4 in)	30 March 1979
Apr	48.3 mm (1.9 in)	8 April 2002
May	80.3 mm (3.2 in)	28 May 1991
Jun	115.3 mm (4.5 in)	3 June 1973
Jul	117.9 mm (4.6 in)	29 July 1995
Aug	125.0 mm (4.9 in)	7 August 1995
Sep	142.2 mm (5.6 in)	22 September 2009
Oct	91.9 mm (3.6 in)	3 October 2012
Nov	53.8 mm (2.1 in)	19 November 1964
Dec	50.8 mm (2.0 in)	4 December 1991

Period of Record Coverage

1961 to 2013

53 years of record at Guadalupe Grijalva, 1961 to 2013. 8 years have data for under 90 percent of days and are left out of rankings: 1978, 1981, 1992, 1993, 1999, 2005, 2011, 2013.

Days with data per year at Guadalupe Grijalva
Year	Days with data	Share of year	Complete
1961	362	99%	Yes
1962	334	92%	Yes
1963	365	100%	Yes
1964	364	99%	Yes
1965	365	100%	Yes
1966	363	99%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	341	93%	Yes
1970	365	100%	Yes
1971	362	99%	Yes
1972	365	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	364	100%	Yes
1978	304	83%	No
1979	365	100%	Yes
1980	366	100%	Yes
1981	152	42%	No
1982	334	92%	Yes
1983	334	92%	Yes
1984	335	92%	Yes
1985	357	98%	Yes
1986	337	92%	Yes
1987	333	91%	Yes
1988	366	100%	Yes
1989	335	92%	Yes
1990	334	92%	Yes
1991	365	100%	Yes
1992	274	75%	No
1993	184	50%	No
1994	365	100%	Yes
1995	365	100%	Yes
1996	366	100%	Yes
1997	361	99%	Yes
1998	332	91%	Yes
1999	222	61%	No
2000	362	99%	Yes
2001	332	91%	Yes
2002	337	92%	Yes
2003	354	97%	Yes
2004	349	95%	Yes
2005	227	62%	No
2006	359	98%	Yes
2007	349	96%	Yes
2008	352	96%	Yes
2009	364	100%	Yes
2010	361	99%	Yes
2011	272	75%	No
2012	365	100%	Yes
2013	151	41%	No

Latest Records

Latest records at Guadalupe Grijalva
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 May 2013	Guadalupe Grijalva, MX	daily low min (Tie)	15.0 C (59.0 F)	tie	28 years	3 of 100 (Routine)
19 May 2013	Guadalupe Grijalva, MX	daily high max (Tie)	38.9 C (102.0 F)	tie	4 years	1 of 100 (Routine)
14 May 2013	Guadalupe Grijalva, MX	daily high max	38.9 C (102.0 F)	1.1 C (2.0 F)	52 years	23 of 100 (Routine)
9 May 2013	Guadalupe Grijalva, MX	daily high max (Tie)	38.9 C (102.0 F)	tie	46 years	4 of 100 (Routine)
29 April 2013	Guadalupe Grijalva, MX	daily high max (Tie)	38.9 C (102.0 F)	tie	50 years	5 of 100 (Routine)
27 April 2013	Guadalupe Grijalva, MX	daily high max (Tie)	38.9 C (102.0 F)	tie	52 years	5 of 100 (Routine)
17 April 2013	Guadalupe Grijalva, MX	daily high max (Tie)	38.9 C (102.0 F)	tie	6 years	1 of 100 (Routine)
14 April 2013	Guadalupe Grijalva, MX	daily high max (Tie)	39.4 C (102.9 F)	tie	4 years	1 of 100 (Routine)
1 April 2013	Guadalupe Grijalva, MX	daily high max (Tie)	38.9 C (102.0 F)	tie	38 years	4 of 100 (Routine)
29 March 2013	Guadalupe Grijalva, MX	daily low max	25.6 C (78.1 F)	2.2 C (4.0 F)	28 years	19 of 100 (Routine)
28 March 2013	Guadalupe Grijalva, MX	daily low max (Tie)	26.7 C (80.1 F)	tie	35 years	3 of 100 (Routine)
27 March 2013	Guadalupe Grijalva, MX	daily low max (Tie)	27.8 C (82.0 F)	tie	44 years	4 of 100 (Routine)
23 March 2013	Guadalupe Grijalva, MX	daily high max (Tie)	37.8 C (100.0 F)	tie	44 years	4 of 100 (Routine)
22 March 2013	Guadalupe Grijalva, MX	daily high max	38.9 C (102.0 F)	1.1 C (2.0 F)	44 years	21 of 100 (Routine)
19 March 2013	Guadalupe Grijalva, MX	daily high max (Tie)	38.9 C (102.0 F)	tie	48 years	4 of 100 (Routine)
17 March 2013	Guadalupe Grijalva, MX	daily high max	38.9 C (102.0 F)	1.1 C (2.0 F)	48 years	22 of 100 (Routine)
25 February 2013	Guadalupe Grijalva, MX	daily high min (Tie)	18.9 C (66.0 F)	tie	8 years	1 of 100 (Routine)
20 February 2013	Guadalupe Grijalva, MX	daily high min (Tie)	20.6 C (69.1 F)	tie	43 years	4 of 100 (Routine)
19 February 2013	Guadalupe Grijalva, MX	daily high min	21.7 C (71.1 F)	1.1 C (2.0 F)	33 years	18 of 100 (Routine)
18 February 2013	Guadalupe Grijalva, MX	daily high min (Tie)	20.0 C (68.0 F)	tie	43 years	4 of 100 (Routine)

Climate Trend

37 complete years, 1961 to 2012

One stripe for each of 37 complete years at Guadalupe Grijalva, 1961 to 2012. Blue stripes are years cooler than the station's own mean of 24.0 C (75.2 F); red stripes are warmer. The coolest year was 1984, at 20.8 C (69.4 F), and the warmest was 1991, at 25.4 C (77.7 F). The strongest colour marks a difference of 3.3 C (5.9 F).

Annual mean temperature at Guadalupe Grijalva as warming stripes, 1961 to 2012
Year	Annual mean temperature	Difference from the station mean
1961	24.6 C	+0.59 C
1963	24.3 C	+0.27 C
1964	24.4 C	+0.41 C
1965	24.7 C	+0.68 C
1966	24.1 C	+0.12 C
1967	23.1 C	-0.88 C
1968	24.0 C	+0.00 C
1969	24.5 C	+0.51 C
1970	24.2 C	+0.15 C
1971	24.6 C	+0.59 C
1972	24.6 C	+0.55 C
1973	24.4 C	+0.34 C
1974	24.2 C	+0.16 C
1975	24.8 C	+0.74 C
1976	23.9 C	-0.09 C
1977	24.1 C	+0.07 C
1979	24.7 C	+0.70 C
1980	24.3 C	+0.30 C
1984	20.8 C	-3.25 C
1985	22.8 C	-1.24 C
1988	24.5 C	+0.46 C
1991	25.4 C	+1.39 C
1994	22.6 C	-1.46 C
1995	24.7 C	+0.71 C
1996	22.0 C	-2.03 C
1997	22.5 C	-1.53 C
2000	22.5 C	-1.53 C
2001	24.2 C	+0.17 C
2002	24.4 C	+0.42 C
2003	25.0 C	+0.98 C
2004	24.0 C	-0.05 C
2006	25.4 C	+1.36 C
2007	24.6 C	+0.60 C
2008	23.8 C	-0.20 C
2009	24.1 C	+0.07 C
2010	23.1 C	-0.94 C
2012	24.9 C	+0.84 C

The fitted trend in annual mean temperature here over 1961 to 2012 is -0.1 C (-0.3 to 0.1) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.5 to 0.2) 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 Guadalupe Grijalva
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.1 C (-0.3 to 0.1) per decade	-0.1 F (-0.5 to 0.2) per decade	1961 to 2012	37	Not clearly different from zero
Mean daily maximum	-0.1 C (-0.4 to 0.2) per decade	-0.1 F (-0.7 to 0.4) per decade	1961 to 2012	37	Not clearly different from zero
Mean daily minimum	-0.1 C (-0.3 to 0.1) per decade	-0.1 F (-0.5 to 0.2) per decade	1961 to 2012	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

1961 to 2013

Yearly extremes at Guadalupe Grijalva: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	45.6 C (114.1 F)	1968	38.9 C (102.0 F)	53
Coldest night (TNn)	5.6 C (42.1 F)	1968	10.0 C (50.0 F)	53
Wettest day (Rx1day)	142.2 mm (5.6 in)	2009	80.3 mm (3.2 in)	53
Wettest five days (Rx5day)	466.7 mm (18.4 in)	1995	168.9 mm (6.6 in)	53
Longest dry spell (CDD)	160 days	2011	75 days	53

Hottest day (TXx)

The hottest day of the year at Guadalupe Grijalva, 1961 to 2013. The record is 45.6 C (114.1 F) in 1968, marked on the chart; the median year is 38.9 C (102.0 F).

Hottest day (TXx) at Guadalupe Grijalva by year
Year	Hottest day (TXx)
1961	40.0 C (104.0 F)
1962	39.4 C (102.9 F)
1963	40.6 C (105.1 F)
1964	41.7 C (107.1 F)
1965	40.0 C (104.0 F)
1966	38.9 C (102.0 F)
1967	38.9 C (102.0 F)
1968	45.6 C (114.1 F)
1969	40.0 C (104.0 F)
1970	40.0 C (104.0 F)
1971	38.9 C (102.0 F)
1972	38.9 C (102.0 F)
1973	38.9 C (102.0 F)
1974	36.7 C (98.1 F)
1975	38.9 C (102.0 F)
1976	37.8 C (100.0 F)
1977	37.8 C (100.0 F)
1978	37.8 C (100.0 F)
1979	36.7 C (98.1 F)
1980	36.7 C (98.1 F)
1981	33.9 C (93.0 F)
1982	39.4 C (102.9 F)
1983	38.3 C (100.9 F)
1984	35.0 C (95.0 F)
1985	37.2 C (99.0 F)
1986	38.9 C (102.0 F)
1987	35.0 C (95.0 F)
1988	37.8 C (100.0 F)
1989	37.8 C (100.0 F)
1990	36.7 C (98.1 F)
1991	36.7 C (98.1 F)
1992	35.0 C (95.0 F)
1993	32.2 C (90.0 F)
1994	33.3 C (91.9 F)
1995	36.7 C (98.1 F)
1996	34.4 C (93.9 F)
1997	35.0 C (95.0 F)
1998	34.4 C (93.9 F)
1999	34.4 C (93.9 F)
2000	32.8 C (91.0 F)
2001	39.4 C (102.9 F)
2002	38.9 C (102.0 F)
2003	40.6 C (105.1 F)
2004	40.6 C (105.1 F)
2005	38.9 C (102.0 F)
2006	40.0 C (104.0 F)
2007	40.0 C (104.0 F)
2008	40.0 C (104.0 F)
2009	40.6 C (105.1 F)
2010	39.4 C (102.9 F)
2011	39.4 C (102.9 F)
2012	39.4 C (102.9 F)
2013	39.4 C (102.9 F)

Coldest night (TNn)

The coldest night of the year at Guadalupe Grijalva, 1961 to 2013. The record is 5.6 C (42.1 F) in 1968, marked on the chart; the median year is 10.0 C (50.0 F).

Coldest night (TNn) at Guadalupe Grijalva by year
Year	Coldest night (TNn)
1961	9.4 C (48.9 F)
1962	8.9 C (48.0 F)
1963	6.7 C (44.1 F)
1964	7.8 C (46.0 F)
1965	6.7 C (44.1 F)
1966	7.8 C (46.0 F)
1967	6.7 C (44.1 F)
1968	5.6 C (42.1 F)
1969	8.9 C (48.0 F)
1970	8.9 C (48.0 F)
1971	7.8 C (46.0 F)
1972	5.6 C (42.1 F)
1973	7.8 C (46.0 F)
1974	10.0 C (50.0 F)
1975	10.0 C (50.0 F)
1976	8.9 C (48.0 F)
1977	6.7 C (44.1 F)
1978	10.0 C (50.0 F)
1979	10.0 C (50.0 F)
1980	10.0 C (50.0 F)
1981	11.7 C (53.1 F)
1982	10.0 C (50.0 F)
1983	10.6 C (51.1 F)
1984	8.9 C (48.0 F)
1985	10.6 C (51.1 F)
1986	11.7 C (53.1 F)
1987	10.0 C (50.0 F)
1988	10.0 C (50.0 F)
1989	10.0 C (50.0 F)
1990	12.2 C (54.0 F)
1991	12.8 C (55.0 F)
1992	13.9 C (57.0 F)
1993	11.7 C (53.1 F)
1994	10.6 C (51.1 F)
1995	12.2 C (54.0 F)
1996	10.0 C (50.0 F)
1997	10.0 C (50.0 F)
1998	10.0 C (50.0 F)
1999	10.0 C (50.0 F)
2000	10.0 C (50.0 F)
2001	10.0 C (50.0 F)
2002	10.0 C (50.0 F)
2003	8.9 C (48.0 F)
2004	8.9 C (48.0 F)
2005	8.9 C (48.0 F)
2006	8.9 C (48.0 F)
2007	10.0 C (50.0 F)
2008	8.9 C (48.0 F)
2009	7.8 C (46.0 F)
2010	7.8 C (46.0 F)
2011	8.9 C (48.0 F)
2012	10.0 C (50.0 F)
2013	10.0 C (50.0 F)

Wettest day (Rx1day)

The wettest day of the year at Guadalupe Grijalva, 1961 to 2013. The record is 142.2 mm (5.6 in) in 2009, marked on the chart; the median year is 80.3 mm (3.2 in).

Wettest day (Rx1day) at Guadalupe Grijalva by year
Year	Wettest day (Rx1day)
1961	99.8 mm (3.9 in)
1962	99.8 mm (3.9 in)
1963	99.8 mm (3.9 in)
1964	88.9 mm (3.5 in)
1965	59.9 mm (2.4 in)
1966	99.8 mm (3.9 in)
1967	69.9 mm (2.8 in)
1968	67.8 mm (2.7 in)
1969	59.9 mm (2.4 in)
1970	59.9 mm (2.4 in)
1971	69.9 mm (2.8 in)
1972	70.6 mm (2.8 in)
1973	115.3 mm (4.5 in)
1974	81.3 mm (3.2 in)
1975	91.4 mm (3.6 in)
1976	46.0 mm (1.8 in)
1977	85.1 mm (3.4 in)
1978	80.8 mm (3.2 in)
1979	95.3 mm (3.8 in)
1980	63.5 mm (2.5 in)
1981	59.9 mm (2.4 in)
1982	137.2 mm (5.4 in)
1983	59.9 mm (2.4 in)
1984	82.3 mm (3.2 in)
1985	59.9 mm (2.4 in)
1986	79.8 mm (3.1 in)
1987	80.0 mm (3.1 in)
1988	94.5 mm (3.7 in)
1989	74.2 mm (2.9 in)
1990	51.1 mm (2.0 in)
1991	80.3 mm (3.2 in)
1992	79.8 mm (3.1 in)
1993	80.0 mm (3.1 in)
1994	99.8 mm (3.9 in)
1995	125.0 mm (4.9 in)
1996	95.0 mm (3.7 in)
1997	88.1 mm (3.5 in)
1998	62.0 mm (2.4 in)
1999	76.5 mm (3.0 in)
2000	68.1 mm (2.7 in)
2001	97.8 mm (3.9 in)
2002	86.4 mm (3.4 in)
2003	97.8 mm (3.9 in)
2004	77.5 mm (3.1 in)
2005	59.9 mm (2.4 in)
2006	114.8 mm (4.5 in)
2007	71.9 mm (2.8 in)
2008	89.9 mm (3.5 in)
2009	142.2 mm (5.6 in)
2010	113.8 mm (4.5 in)
2011	63.8 mm (2.5 in)
2012	91.9 mm (3.6 in)
2013	11.9 mm (0.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Guadalupe Grijalva, 1961 to 2013. The record is 466.7 mm (18.4 in) in 1995, marked on the chart; the median year is 168.9 mm (6.6 in).

Wettest five days (Rx5day) at Guadalupe Grijalva by year
Year	Wettest five days (Rx5day)
1961	224.6 mm (8.8 in)
1962	237.4 mm (9.3 in)
1963	132.3 mm (5.2 in)
1964	145.5 mm (5.7 in)
1965	155.8 mm (6.1 in)
1966	212.4 mm (8.4 in)
1967	126.3 mm (5.0 in)
1968	101.5 mm (4.0 in)
1969	164.4 mm (6.5 in)
1970	151.3 mm (6.0 in)
1971	143.8 mm (5.7 in)
1972	179.3 mm (7.1 in)
1973	227.4 mm (9.0 in)
1974	146.6 mm (5.8 in)
1975	213.1 mm (8.4 in)
1976	127.8 mm (5.0 in)
1977	219.5 mm (8.6 in)
1978	227.2 mm (8.9 in)
1979	322.1 mm (12.7 in)
1980	114.6 mm (4.5 in)
1981	212.8 mm (8.4 in)
1982	339.1 mm (13.4 in)
1983	122.6 mm (4.8 in)
1984	150.5 mm (5.9 in)
1985	121.1 mm (4.8 in)
1986	128.6 mm (5.1 in)
1987	118.9 mm (4.7 in)
1988	198.7 mm (7.8 in)
1989	149.1 mm (5.9 in)
1990	112.8 mm (4.4 in)
1991	119.6 mm (4.7 in)
1992	134.2 mm (5.3 in)
1993	195.1 mm (7.7 in)
1994	248.4 mm (9.8 in)
1995	466.7 mm (18.4 in)
1996	323.3 mm (12.7 in)
1997	266.9 mm (10.5 in)
1998	123.4 mm (4.9 in)
1999	158.4 mm (6.2 in)
2000	153.5 mm (6.0 in)
2001	208.8 mm (8.2 in)
2002	180.2 mm (7.1 in)
2003	251.5 mm (9.9 in)
2004	204.8 mm (8.1 in)
2005	156.3 mm (6.2 in)
2006	182.9 mm (7.2 in)
2007	168.9 mm (6.6 in)
2008	154.5 mm (6.1 in)
2009	213.8 mm (8.4 in)
2010	219.3 mm (8.6 in)
2011	172.8 mm (6.8 in)
2012	200.6 mm (7.9 in)
2013	20.0 mm (0.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Guadalupe Grijalva, 1961 to 2013. The record is 160 days in 2011, marked on the chart; the median year is 75 days.

Longest dry spell (CDD) at Guadalupe Grijalva by year
Year	Longest dry spell (CDD)
1961	30 days
1962	69 days
1963	76 days
1964	68 days
1965	123 days
1966	33 days
1967	77 days
1968	77 days
1969	38 days
1970	74 days
1971	158 days
1972	56 days
1973	46 days
1974	30 days
1975	50 days
1976	37 days
1977	45 days
1978	34 days
1979	55 days
1980	60 days
1981	27 days
1982	120 days
1983	31 days
1984	131 days
1985	125 days
1986	50 days
1987	120 days
1988	154 days
1989	37 days
1990	118 days
1991	137 days
1992	104 days
1993	62 days
1994	75 days
1995	121 days
1996	104 days
1997	79 days
1998	90 days
1999	100 days
2000	122 days
2001	61 days
2002	56 days
2003	84 days
2004	53 days
2005	87 days
2006	73 days
2007	120 days
2008	42 days
2009	92 days
2010	72 days
2011	160 days
2012	84 days
2013	101 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

45 years, 1961 to 2012

A day with at least 83.3 mm (3.3 in) of rain is expected about once in 2 years. A day with at least 144.8 mm (5.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Guadalupe Grijalva: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	83.3 mm (3.3 in)
5 years	103.0 mm (4.1 in)
10 years	114.6 mm (4.5 in)
25 years	127.8 mm (5.0 in)
50 years	136.7 mm (5.4 in)	Longer than the 45 years of record
100 years	144.8 mm (5.7 in)	Longer than the 45 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, 45 years of values from 1961 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: 142.2 mm (5.6 in) in 2009; 137.2 mm (5.4 in) in 1982; 125.0 mm (4.9 in) in 1995.

Download the Data

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