Guadalupe Buenavista Weather Records (MXN00021040)

Record envelope, standing records and threshold days for Guadalupe Buenavista (MXN00021040), Mexico, with 49 years of record.

Key Facts for Guadalupe Buenavista

Guadalupe Buenavista (MXN00021040) is a weather station in Mexico at 19.37 latitude and -97.35 longitude, 2,360 m (7,742 ft) above sea level.
The station reports from 1961 to 2009, 49 years of record.
1,464 records set at Guadalupe Buenavista still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Guadalupe Buenavista set a monthly record daily precipitation of 19.8 mm (0.8 in) on 17 December 2009.

About the Station

Location: Mexico, 19.37 latitude, -97.35 longitude.
Elevation: 2,360 m (7,742 ft).
Period of record: 1961 to 2009, 49 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 Buenavista. 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 Buenavista, 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)	-11.7 C (10.9 F)	n/a	n/a
Feb	32.8 C (91.0 F)	-12.2 C (10.0 F)	n/a	n/a
Mar	33.9 C (93.0 F)	-11.1 C (12.0 F)	n/a	n/a
Apr	35.6 C (96.1 F)	-4.4 C (24.1 F)	n/a	n/a
May	35.6 C (96.1 F)	-3.3 C (26.1 F)	n/a	n/a
Jun	34.4 C (93.9 F)	-1.1 C (30.0 F)	n/a	n/a
Jul	30.0 C (86.0 F)	0.6 C (33.1 F)	n/a	n/a
Aug	30.0 C (86.0 F)	0.6 C (33.1 F)	n/a	n/a
Sep	30.0 C (86.0 F)	-5.0 C (23.0 F)	n/a	n/a
Oct	30.0 C (86.0 F)	-7.2 C (19.0 F)	n/a	n/a
Nov	30.0 C (86.0 F)	-11.1 C (12.0 F)	n/a	n/a
Dec	28.9 C (84.0 F)	-9.4 C (15.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Guadalupe Buenavista still stand. 1966 holds the most, with 85.

Standing records at Guadalupe Buenavista by the year they were set
Year set	Standing records
1961	42
1962	39
1963	39
1964	46
1965	43
1966	85
1967	43
1968	36
1969	33
1970	35
1971	39
1972	34
1973	36
1974	26
1975	26
1976	33
1977	27
1978	40
1979	36
1980	12
1981	29
1982	19
1983	22
1984	11
1985	8
1986	28
1987	44
1988	32
1991	32
1992	31
1993	23
1994	27
1995	29
1996	36
1997	27
1998	45
1999	24
2000	26
2001	33
2002	20
2003	52
2004	29
2005	23
2006	27
2007	19
2009	18

All-Time Record Progression

6 new records

6 all-time records were set at Guadalupe Buenavista between 20 October 1995 and 4 October 1999. Each dot is a new record.

When Guadalupe Buenavista set new all-time records
Date	Kind	Detail
1995-10-20	Record daily precipitation	Record daily precipitation 60.2 mm (2.4 in)
1998-04-16	Record high minimum temperature	Record high minimum temperature 14.4 C (57.9 F)
1998-04-17	Record high maximum temperature	Record high maximum temperature 35.0 C (95.0 F)
1998-05-15	Record high maximum temperature	Record high maximum temperature 35.6 C (96.1 F)
1999-07-12	Record daily precipitation	Record daily precipitation 60.5 mm (2.4 in)
1999-10-04	Record daily precipitation	Record daily precipitation 117.9 mm (4.6 in)

Wettest Day of Each Month

Oct: 117.9 mm (4.6 in)

The wettest day on record for each calendar month at Guadalupe Buenavista. The most was 117.9 mm (4.6 in) on 4 October 1999.

Record daily precipitation for each month at Guadalupe Buenavista
Month	Record daily precipitation (mm)	Date
Jan	22.1 mm (0.9 in)	30 January 2004
Feb	22.9 mm (0.9 in)	7 February 1993
Mar	41.9 mm (1.6 in)	23 March 2006
Apr	28.2 mm (1.1 in)	25 April 1995
May	33.3 mm (1.3 in)	15 May 2002
Jun	53.8 mm (2.1 in)	2 June 2003
Jul	60.5 mm (2.4 in)	12 July 1999
Aug	56.9 mm (2.2 in)	22 August 2005
Sep	58.9 mm (2.3 in)	20 September 1966
Oct	117.9 mm (4.6 in)	4 October 1999
Nov	21.3 mm (0.8 in)	10 November 1997
Dec	19.8 mm (0.8 in)	17 December 2009

Period of Record Coverage

1961 to 2009

47 years of record at Guadalupe Buenavista, 1961 to 2009. 5 years have data for under 90 percent of days and are left out of rankings: 1966, 1969, 1983, 1988, 2008.

Days with data per year at Guadalupe Buenavista
Year	Days with data	Share of year	Complete
1961	334	92%	Yes
1962	365	100%	Yes
1963	363	99%	Yes
1964	366	100%	Yes
1965	364	100%	Yes
1966	273	75%	No
1967	365	100%	Yes
1968	366	100%	Yes
1969	301	82%	No
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	335	92%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	364	100%	Yes
1978	364	100%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	304	83%	No
1984	360	98%	Yes
1985	329	90%	Yes
1986	358	98%	Yes
1987	358	98%	Yes
1988	240	66%	No
1991	333	91%	Yes
1992	366	100%	Yes
1993	364	100%	Yes
1994	365	100%	Yes
1995	365	100%	Yes
1996	365	100%	Yes
1997	365	100%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	364	99%	Yes
2001	364	100%	Yes
2002	333	91%	Yes
2003	365	100%	Yes
2004	335	92%	Yes
2005	363	99%	Yes
2006	364	100%	Yes
2007	362	99%	Yes
2008	29	8%	No
2009	351	96%	Yes

Latest Records

Latest records at Guadalupe Buenavista
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 December 2009	Guadalupe Buenavista, MX	monthly rain	19.8 mm (0.8 in)	5.6 mm (0.22 in)	7 years	20 of 100 (Routine)
17 December 2009	Guadalupe Buenavista, MX	daily high min (Tie)	6.7 C (44.1 F)	tie	48 years	4 of 100 (Routine)
1 December 2009	Guadalupe Buenavista, MX	daily high min (Tie)	7.8 C (46.0 F)	tie	28 years	3 of 100 (Routine)
3 November 2009	Guadalupe Buenavista, MX	daily low max (Tie)	15.0 C (59.0 F)	tie	12 years	1 of 100 (Routine)
28 October 2009	Guadalupe Buenavista, MX	daily high min (Tie)	10.6 C (51.1 F)	tie	40 years	4 of 100 (Routine)
18 October 2009	Guadalupe Buenavista, MX	daily low max (Tie)	15.0 C (59.0 F)	tie	42 years	4 of 100 (Routine)
17 October 2009	Guadalupe Buenavista, MX	daily rain	3.8 mm (0.15 in)	2.3 mm (0.09 in)	12 years	8 of 100 (Routine)
8 October 2009	Guadalupe Buenavista, MX	daily high max	26.7 C (80.1 F)	1.1 C (2.0 F)	32 years	16 of 100 (Routine)
8 October 2009	Guadalupe Buenavista, MX	daily high min (Tie)	10.6 C (51.1 F)	tie	36 years	3 of 100 (Routine)
6 October 2009	Guadalupe Buenavista, MX	daily high max	27.8 C (82.0 F)	1.1 C (2.0 F)	22 years	13 of 100 (Routine)
5 October 2009	Guadalupe Buenavista, MX	daily high max	27.8 C (82.0 F)	0.6 C (1.1 F)	22 years	11 of 100 (Routine)
3 October 2009	Guadalupe Buenavista, MX	daily high max	27.8 C (82.0 F)	0.6 C (1.1 F)	11 years	8 of 100 (Routine)
1 October 2009	Guadalupe Buenavista, MX	daily high max (Tie)	25.6 C (78.1 F)	tie	23 years	2 of 100 (Routine)
26 September 2009	Guadalupe Buenavista, MX	daily high min (Tie)	11.7 C (53.1 F)	tie	39 years	3 of 100 (Routine)
17 September 2009	Guadalupe Buenavista, MX	daily high min (Tie)	11.7 C (53.1 F)	tie	32 years	3 of 100 (Routine)
10 September 2009	Guadalupe Buenavista, MX	daily rain	27.4 mm (1.1 in)	12.4 mm (0.5 in)	30 years	28 of 100 (Routine)
10 September 2009	Guadalupe Buenavista, MX	daily high min	12.8 C (55.0 F)	0.6 C (1.1 F)	30 years	15 of 100 (Routine)
9 September 2009	Guadalupe Buenavista, MX	daily high min	12.8 C (55.0 F)	1.1 C (2.0 F)	30 years	17 of 100 (Routine)
18 August 2009	Guadalupe Buenavista, MX	monthly low max	11.7 C (53.1 F)	1.1 C (2.0 F)	35 years	27 of 100 (Routine)
23 July 2009	Guadalupe Buenavista, MX	daily low min (Tie)	3.9 C (39.0 F)	tie	47 years	4 of 100 (Routine)

Climate Trend

36 complete years, 1962 to 2009

One stripe for each of 36 complete years at Guadalupe Buenavista, 1962 to 2009. Blue stripes are years cooler than the station's own mean of 13.7 C (56.7 F); red stripes are warmer. The coolest year was 1976, at 12.4 C (54.4 F), and the warmest was 1998, at 15.2 C (59.4 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at Guadalupe Buenavista as warming stripes, 1962 to 2009
Year	Annual mean temperature	Difference from the station mean
1962	13.5 C	-0.16 C
1963	13.6 C	-0.13 C
1964	13.6 C	-0.06 C
1965	12.9 C	-0.77 C
1967	13.1 C	-0.61 C
1968	13.2 C	-0.55 C
1970	13.2 C	-0.55 C
1971	12.8 C	-0.87 C
1972	13.1 C	-0.57 C
1973	13.4 C	-0.31 C
1975	12.6 C	-1.09 C
1976	12.4 C	-1.28 C
1977	12.9 C	-0.85 C
1978	13.1 C	-0.56 C
1979	13.2 C	-0.53 C
1980	13.7 C	-0.02 C
1981	13.4 C	-0.31 C
1982	13.4 C	-0.26 C
1984	13.3 C	-0.38 C
1986	13.2 C	-0.49 C
1987	14.2 C	+0.45 C
1992	14.3 C	+0.56 C
1993	14.3 C	+0.57 C
1994	14.8 C	+1.06 C
1995	14.8 C	+1.05 C
1996	14.3 C	+0.60 C
1997	14.6 C	+0.87 C
1998	15.2 C	+1.53 C
1999	13.9 C	+0.18 C
2000	14.1 C	+0.42 C
2001	14.3 C	+0.63 C
2003	14.9 C	+1.23 C
2005	14.9 C	+1.20 C
2006	13.6 C	-0.12 C
2007	13.6 C	-0.12 C
2009	13.9 C	+0.23 C

The annual mean temperature here has risen by 0.3 C (0.2 to 0.5) per decade over 1962 to 2009. In Fahrenheit: 0.6 F (0.4 to 0.8) per decade. The slope is a straight line fitted to 36 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Guadalupe Buenavista
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.3 C (0.2 to 0.5) per decade	0.6 F (0.4 to 0.8) per decade	1962 to 2009	36	Rise
Mean daily maximum	0.8 C (0.5 to 1.1) per decade	1.4 F (0.9 to 2.0) per decade	1962 to 2009	36	Rise
Mean daily minimum	-0.12 C (-0.25 to 0.01) per decade	-0.22 F (-0.46 to 0.01) per decade	1962 to 2009	36	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 2009

Yearly extremes at Guadalupe Buenavista: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	35.6 C (96.1 F)	1998	30.0 C (86.0 F)	47
Coldest night (TNn)	-12.2 C (10.0 F)	1976	-6.7 C (19.9 F)	47
Wettest day (Rx1day)	117.9 mm (4.6 in)	1999	34.8 mm (1.4 in)	47
Wettest five days (Rx5day)	242.2 mm (9.5 in)	1999	57.2 mm (2.3 in)	47
Longest dry spell (CDD)	107 days	1991	63 days	47

Hottest day (TXx)

The hottest day of the year at Guadalupe Buenavista, 1961 to 2009. The record is 35.6 C (96.1 F) in 1998, marked on the chart; the median year is 30.0 C (86.0 F).

Hottest day (TXx) at Guadalupe Buenavista by year
Year	Hottest day (TXx)
1961	30.6 C (87.1 F)
1962	30.6 C (87.1 F)
1963	30.6 C (87.1 F)
1964	31.7 C (89.1 F)
1965	28.9 C (84.0 F)
1966	25.6 C (78.1 F)
1967	28.9 C (84.0 F)
1968	28.3 C (82.9 F)
1969	30.0 C (86.0 F)
1970	31.7 C (89.1 F)
1971	28.9 C (84.0 F)
1972	27.8 C (82.0 F)
1973	30.0 C (86.0 F)
1974	27.8 C (82.0 F)
1975	27.8 C (82.0 F)
1976	26.7 C (80.1 F)
1977	28.3 C (82.9 F)
1978	29.4 C (84.9 F)
1979	27.8 C (82.0 F)
1980	28.9 C (84.0 F)
1981	26.7 C (80.1 F)
1982	26.7 C (80.1 F)
1983	30.0 C (86.0 F)
1984	28.9 C (84.0 F)
1985	27.8 C (82.0 F)
1986	28.9 C (84.0 F)
1987	30.0 C (86.0 F)
1988	34.4 C (93.9 F)
1991	33.9 C (93.0 F)
1992	30.6 C (87.1 F)
1993	31.1 C (88.0 F)
1994	32.2 C (90.0 F)
1995	32.8 C (91.0 F)
1996	32.2 C (90.0 F)
1997	31.7 C (89.1 F)
1998	35.6 C (96.1 F)
1999	32.8 C (91.0 F)
2000	31.1 C (88.0 F)
2001	33.3 C (91.9 F)
2002	33.3 C (91.9 F)
2003	35.6 C (96.1 F)
2004	32.8 C (91.0 F)
2005	34.4 C (93.9 F)
2006	30.0 C (86.0 F)
2007	30.6 C (87.1 F)
2008	28.3 C (82.9 F)
2009	30.0 C (86.0 F)

Coldest night (TNn)

The coldest night of the year at Guadalupe Buenavista, 1961 to 2009. The record is -12.2 C (10.0 F) in 1976, marked on the chart; the median year is -6.7 C (19.9 F).

Coldest night (TNn) at Guadalupe Buenavista by year
Year	Coldest night (TNn)
1961	-8.3 C (17.1 F)
1962	-7.2 C (19.0 F)
1963	-10.0 C (14.0 F)
1964	-6.1 C (21.0 F)
1965	-6.1 C (21.0 F)
1966	-9.4 C (15.1 F)
1967	-10.0 C (14.0 F)
1968	-6.1 C (21.0 F)
1969	-7.2 C (19.0 F)
1970	-11.1 C (12.0 F)
1971	-5.0 C (23.0 F)
1972	-7.2 C (19.0 F)
1973	-11.1 C (12.0 F)
1974	-11.1 C (12.0 F)
1975	-10.6 C (12.9 F)
1976	-12.2 C (10.0 F)
1977	-5.0 C (23.0 F)
1978	-3.9 C (25.0 F)
1979	-5.6 C (21.9 F)
1980	-7.2 C (19.0 F)
1981	-5.0 C (23.0 F)
1982	-7.2 C (19.0 F)
1983	-4.4 C (24.1 F)
1984	-7.2 C (19.0 F)
1985	-0.6 C (30.9 F)
1986	-9.4 C (15.1 F)
1987	-8.3 C (17.1 F)
1988	-11.7 C (10.9 F)
1991	-3.9 C (25.0 F)
1992	-6.1 C (21.0 F)
1993	-5.0 C (23.0 F)
1994	-7.8 C (18.0 F)
1995	-4.4 C (24.1 F)
1996	-6.1 C (21.0 F)
1997	-9.4 C (15.1 F)
1998	-6.7 C (19.9 F)
1999	-6.1 C (21.0 F)
2000	-6.1 C (21.0 F)
2001	-5.0 C (23.0 F)
2002	-7.2 C (19.0 F)
2003	-7.8 C (18.0 F)
2004	-8.9 C (16.0 F)
2005	-5.6 C (21.9 F)
2006	0.0 C (32.0 F)
2007	-3.3 C (26.1 F)
2008	-0.6 C (30.9 F)
2009	-1.1 C (30.0 F)

Wettest day (Rx1day)

The wettest day of the year at Guadalupe Buenavista, 1961 to 2009. The record is 117.9 mm (4.6 in) in 1999, marked on the chart; the median year is 34.8 mm (1.4 in).

Wettest day (Rx1day) at Guadalupe Buenavista by year
Year	Wettest day (Rx1day)
1961	37.8 mm (1.5 in)
1962	18.8 mm (0.7 in)
1963	34.8 mm (1.4 in)
1964	13.5 mm (0.5 in)
1965	31.0 mm (1.2 in)
1966	58.9 mm (2.3 in)
1967	22.9 mm (0.9 in)
1968	32.8 mm (1.3 in)
1969	36.8 mm (1.4 in)
1970	24.9 mm (1.0 in)
1971	30.0 mm (1.2 in)
1972	24.4 mm (1.0 in)
1973	38.9 mm (1.5 in)
1974	24.4 mm (1.0 in)
1975	34.3 mm (1.4 in)
1976	35.3 mm (1.4 in)
1977	26.4 mm (1.0 in)
1978	47.8 mm (1.9 in)
1979	46.0 mm (1.8 in)
1980	25.9 mm (1.0 in)
1981	34.8 mm (1.4 in)
1982	18.8 mm (0.7 in)
1983	19.8 mm (0.8 in)
1984	31.8 mm (1.3 in)
1985	16.8 mm (0.7 in)
1986	22.9 mm (0.9 in)
1987	23.9 mm (0.9 in)
1988	37.3 mm (1.5 in)
1991	40.9 mm (1.6 in)
1992	38.1 mm (1.5 in)
1993	40.6 mm (1.6 in)
1994	27.9 mm (1.1 in)
1995	60.2 mm (2.4 in)
1996	41.4 mm (1.6 in)
1997	35.6 mm (1.4 in)
1998	43.4 mm (1.7 in)
1999	117.9 mm (4.6 in)
2000	33.8 mm (1.3 in)
2001	38.6 mm (1.5 in)
2002	33.3 mm (1.3 in)
2003	53.8 mm (2.1 in)
2004	26.9 mm (1.1 in)
2005	56.9 mm (2.2 in)
2006	41.9 mm (1.6 in)
2007	39.9 mm (1.6 in)
2008	2.8 mm (0.11 in)
2009	38.9 mm (1.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Guadalupe Buenavista, 1961 to 2009. The record is 242.2 mm (9.5 in) in 1999, marked on the chart; the median year is 57.2 mm (2.3 in).

Wettest five days (Rx5day) at Guadalupe Buenavista by year
Year	Wettest five days (Rx5day)
1961	68.2 mm (2.7 in)
1962	33.8 mm (1.3 in)
1963	38.4 mm (1.5 in)
1964	19.1 mm (0.8 in)
1965	64.3 mm (2.5 in)
1966	83.3 mm (3.3 in)
1967	61.2 mm (2.4 in)
1968	83.1 mm (3.3 in)
1969	59.0 mm (2.3 in)
1970	50.6 mm (2.0 in)
1971	55.4 mm (2.2 in)
1972	32.8 mm (1.3 in)
1973	68.8 mm (2.7 in)
1974	52.4 mm (2.1 in)
1975	54.7 mm (2.2 in)
1976	56.2 mm (2.2 in)
1977	51.5 mm (2.0 in)
1978	105.8 mm (4.2 in)
1979	73.0 mm (2.9 in)
1980	50.3 mm (2.0 in)
1981	99.3 mm (3.9 in)
1982	49.3 mm (1.9 in)
1983	43.5 mm (1.7 in)
1984	113.2 mm (4.5 in)
1985	29.2 mm (1.1 in)
1986	44.3 mm (1.7 in)
1987	47.0 mm (1.9 in)
1988	53.1 mm (2.1 in)
1991	69.6 mm (2.7 in)
1992	57.1 mm (2.2 in)
1993	90.7 mm (3.6 in)
1994	42.7 mm (1.7 in)
1995	66.3 mm (2.6 in)
1996	63.3 mm (2.5 in)
1997	68.1 mm (2.7 in)
1998	72.9 mm (2.9 in)
1999	242.2 mm (9.5 in)
2000	55.2 mm (2.2 in)
2001	57.2 mm (2.3 in)
2002	87.1 mm (3.4 in)
2003	85.0 mm (3.3 in)
2004	35.3 mm (1.4 in)
2005	74.5 mm (2.9 in)
2006	60.7 mm (2.4 in)
2007	60.7 mm (2.4 in)
2008	2.8 mm (0.11 in)
2009	56.9 mm (2.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Guadalupe Buenavista, 1961 to 2009. The record is 107 days in 1991, marked on the chart; the median year is 63 days.

Longest dry spell (CDD) at Guadalupe Buenavista by year
Year	Longest dry spell (CDD)
1961	91 days
1962	48 days
1963	94 days
1964	51 days
1965	41 days
1966	42 days
1967	52 days
1968	44 days
1969	79 days
1970	83 days
1971	83 days
1972	41 days
1973	60 days
1974	69 days
1975	78 days
1976	55 days
1977	63 days
1978	44 days
1979	58 days
1980	71 days
1981	39 days
1982	81 days
1983	72 days
1984	39 days
1985	99 days
1986	53 days
1987	62 days
1988	39 days
1991	107 days
1992	49 days
1993	67 days
1994	85 days
1995	73 days
1996	64 days
1997	70 days
1998	78 days
1999	59 days
2000	66 days
2001	60 days
2002	34 days
2003	72 days
2004	61 days
2005	86 days
2006	81 days
2007	55 days
2008	18 days
2009	87 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

36 years with a frost

Across 36 years with a frost, the median last spring frost at Guadalupe Buenavista falls on 6 April and the median first autumn frost on 27 October, which leaves a median of 208 days between them.

Fitted over all years, the growing season changes by +3.1 days per decade at this station.

Frost dates and growing season at Guadalupe Buenavista
Measure	Median, all years	Earliest period	Recent period (1970 to 2009)	Recent against earliest	Fitted trend
Last spring frost	6 April	n/a	1 April	n/a	-2.8 days per decade
First autumn frost	27 October	n/a	28 October	n/a	+0.2 days per decade
Growing days	208 days	n/a	210 days	n/a	+3.1 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

43 years, 1961 to 2009

A day with at least 33.1 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 90.9 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Guadalupe Buenavista: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	33.1 mm (1.3 in)
5 years	45.9 mm (1.8 in)
10 years	55.3 mm (2.2 in)
25 years	68.5 mm (2.7 in)
50 years	79.3 mm (3.1 in)	Longer than the 43 years of record
100 years	90.9 mm (3.6 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 1961 to 2009.

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: 117.9 mm (4.6 in) in 1999; 60.2 mm (2.4 in) in 1995; 58.9 mm (2.3 in) in 1966.

Download the Data

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