Loma Alta (Cfe) Weather Records (MXN00021126)

Record envelope, standing records and threshold days for Loma Alta (Cfe) (MXN00021126), Mexico, with 48 years of record.

Key Facts for Loma Alta (Cfe)

Loma Alta (Cfe) (MXN00021126) is a weather station in Mexico at 19.82 latitude and -97.98 longitude, 2,328 m (7,637 ft) above sea level.
The station reports from 1961 to 2008, 48 years of record.
1,464 records set at Loma Alta (Cfe) still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Loma Alta (Cfe) tied a daily record high minimum temperature of 11.7 C (53.1 F) on 30 August 2008.

About the Station

Location: Mexico, 19.82 latitude, -97.98 longitude.
Elevation: 2,328 m (7,637 ft).
Period of record: 1961 to 2008, 48 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 Loma Alta (Cfe). 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 Loma Alta (Cfe), with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	28.9 C (84.0 F)	-10.0 C (14.0 F)	n/a	n/a
Feb	30.0 C (86.0 F)	-10.0 C (14.0 F)	n/a	n/a
Mar	33.9 C (93.0 F)	-10.0 C (14.0 F)	n/a	n/a
Apr	35.6 C (96.1 F)	-4.4 C (24.1 F)	n/a	n/a
May	36.7 C (98.1 F)	-0.6 C (30.9 F)	n/a	n/a
Jun	35.6 C (96.1 F)	0.6 C (33.1 F)	n/a	n/a
Jul	28.9 C (84.0 F)	0.6 C (33.1 F)	n/a	n/a
Aug	28.9 C (84.0 F)	0.6 C (33.1 F)	n/a	n/a
Sep	27.8 C (82.0 F)	-3.3 C (26.1 F)	n/a	n/a
Oct	30.0 C (86.0 F)	-5.0 C (23.0 F)	n/a	n/a
Nov	28.9 C (84.0 F)	-7.2 C (19.0 F)	n/a	n/a
Dec	28.9 C (84.0 F)	-8.3 C (17.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Loma Alta (Cfe) still stand. 1961 holds the most, with 66.

Standing records at Loma Alta (Cfe) by the year they were set
Year set	Standing records
1961	66
1962	40
1963	24
1964	45
1965	33
1966	43
1967	30
1968	24
1969	32
1970	36
1971	25
1972	37
1973	34
1974	37
1975	46
1976	36
1977	43
1978	30
1979	52
1980	41
1981	25
1982	46
1983	43
1984	30
1985	24
1986	42
1987	55
1988	31
1989	39
1990	16
1991	28
1992	23
1993	17
1994	15
1995	51
1996	7
1997	27
1998	38
1999	24
2000	13
2003	29
2004	15
2005	10
2006	18
2007	24
2008	20

All-Time Record Progression

4 new records

4 all-time records were set at Loma Alta (Cfe) between 13 December 1997 and 5 October 1999. Each dot is a new record.

When Loma Alta (Cfe) set new all-time records
Date	Kind	Detail
1997-12-13	Record low maximum temperature	Record low maximum temperature 1.7 C (35.1 F)
1998-04-07	Record high minimum temperature	Record high minimum temperature 17.8 C (64.0 F)
1999-10-04	Record daily precipitation	Record daily precipitation 158.0 mm (6.2 in)
1999-10-05	Record daily precipitation	Record daily precipitation 189.0 mm (7.4 in)

Wettest Day of Each Month

Oct: 189.0 mm (7.4 in)

The wettest day on record for each calendar month at Loma Alta (Cfe). The most was 189.0 mm (7.4 in) on 5 October 1999.

Record daily precipitation for each month at Loma Alta (Cfe)
Month	Record daily precipitation (mm)	Date
Jan	30.0 mm (1.2 in)	10 January 1967
Feb	24.9 mm (1.0 in)	11 February 1979
Mar	33.3 mm (1.3 in)	26 March 1992
Apr	26.9 mm (1.1 in)	24 April 1976
May	47.0 mm (1.9 in)	10 May 2004
Jun	64.5 mm (2.5 in)	15 June 1991
Jul	95.8 mm (3.8 in)	13 July 1983
Aug	59.9 mm (2.4 in)	22 August 2005
Sep	73.4 mm (2.9 in)	27 September 2007
Oct	189.0 mm (7.4 in)	5 October 1999
Nov	27.7 mm (1.1 in)	12 November 1986
Dec	26.9 mm (1.1 in)	30 December 1995

Period of Record Coverage

1961 to 2008

46 years of record at Loma Alta (Cfe), 1961 to 2008. 8 years have data for under 90 percent of days and are left out of rankings: 1961, 1974, 1996, 1997, 2004, 2005, 2006, 2008.

Days with data per year at Loma Alta (Cfe)
Year	Days with data	Share of year	Complete
1961	292	80%	No
1962	364	100%	Yes
1963	364	100%	Yes
1964	365	100%	Yes
1965	365	100%	Yes
1966	364	100%	Yes
1967	364	100%	Yes
1968	365	100%	Yes
1969	351	96%	Yes
1970	361	99%	Yes
1971	364	100%	Yes
1972	364	99%	Yes
1973	360	99%	Yes
1974	151	41%	No
1975	365	100%	Yes
1976	364	99%	Yes
1977	363	99%	Yes
1978	364	100%	Yes
1979	362	99%	Yes
1980	364	99%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	364	100%	Yes
1984	366	100%	Yes
1985	363	99%	Yes
1986	364	100%	Yes
1987	363	99%	Yes
1988	366	100%	Yes
1989	364	100%	Yes
1990	364	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	363	99%	Yes
1994	364	100%	Yes
1995	365	100%	Yes
1996	273	75%	No
1997	275	75%	No
1998	331	91%	Yes
1999	331	91%	Yes
2000	362	99%	Yes
2003	363	99%	Yes
2004	181	49%	No
2005	183	50%	No
2006	275	75%	No
2007	363	99%	Yes
2008	243	66%	No

Latest Records

Latest records at Loma Alta (Cfe)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 August 2008	Loma Alta (Cfe), MX	daily high min (Tie)	11.7 C (53.1 F)	tie	43 years	4 of 100 (Routine)
29 August 2008	Loma Alta (Cfe), MX	daily high min (Tie)	12.8 C (55.0 F)	tie	29 years	3 of 100 (Routine)
28 August 2008	Loma Alta (Cfe), MX	daily high min (Tie)	11.7 C (53.1 F)	tie	43 years	4 of 100 (Routine)
26 August 2008	Loma Alta (Cfe), MX	daily high min	12.8 C (55.0 F)	1.1 C (2.0 F)	13 years	12 of 100 (Routine)
20 August 2008	Loma Alta (Cfe), MX	daily high max (Tie)	23.9 C (75.0 F)	tie	20 years	2 of 100 (Routine)
20 August 2008	Loma Alta (Cfe), MX	daily high min (Tie)	12.8 C (55.0 F)	tie	5 years	1 of 100 (Routine)
19 August 2008	Loma Alta (Cfe), MX	daily high min (Tie)	11.7 C (53.1 F)	tie	41 years	4 of 100 (Routine)
19 August 2008	Loma Alta (Cfe), MX	daily high max (Tie)	22.8 C (73.0 F)	tie	20 years	2 of 100 (Routine)
14 August 2008	Loma Alta (Cfe), MX	daily high max (Tie)	23.9 C (75.0 F)	tie	28 years	3 of 100 (Routine)
13 August 2008	Loma Alta (Cfe), MX	daily high max	23.9 C (75.0 F)	1.1 C (2.0 F)	37 years	20 of 100 (Routine)
12 August 2008	Loma Alta (Cfe), MX	daily high max	25.6 C (78.1 F)	1.7 C (3.1 F)	5 years	12 of 100 (Routine)
30 July 2008	Loma Alta (Cfe), MX	daily high max	25.6 C (78.1 F)	2.8 C (5.0 F)	35 years	25 of 100 (Routine)
29 July 2008	Loma Alta (Cfe), MX	daily high max	25.0 C (77.0 F)	1.1 C (2.0 F)	41 years	20 of 100 (Routine)
28 July 2008	Loma Alta (Cfe), MX	daily high max	23.9 C (75.0 F)	1.1 C (2.0 F)	22 years	14 of 100 (Routine)
23 July 2008	Loma Alta (Cfe), MX	daily high max (Tie)	22.8 C (73.0 F)	tie	23 years	2 of 100 (Routine)
18 July 2008	Loma Alta (Cfe), MX	daily high max (Tie)	22.8 C (73.0 F)	tie	8 years	1 of 100 (Routine)
10 July 2008	Loma Alta (Cfe), MX	daily high min (Tie)	11.7 C (53.1 F)	tie	32 years	3 of 100 (Routine)
9 July 2008	Loma Alta (Cfe), MX	daily high min	12.8 C (55.0 F)	1.1 C (2.0 F)	32 years	18 of 100 (Routine)
8 July 2008	Loma Alta (Cfe), MX	daily high min (Tie)	12.8 C (55.0 F)	tie	39 years	3 of 100 (Routine)
7 July 2008	Loma Alta (Cfe), MX	daily high max	25.6 C (78.1 F)	2.8 C (5.0 F)	37 years	26 of 100 (Routine)

Climate Trend

36 complete years, 1962 to 2007

One stripe for each of 36 complete years at Loma Alta (Cfe), 1962 to 2007. Blue stripes are years cooler than the station's own mean of 13.5 C (56.3 F); red stripes are warmer. The coolest year was 1995, at 12.3 C (54.1 F), and the warmest was 2003, at 14.7 C (58.5 F). The strongest colour marks a difference of 1.3 C (2.3 F).

Annual mean temperature at Loma Alta (Cfe) as warming stripes, 1962 to 2007
Year	Annual mean temperature	Difference from the station mean
1962	13.2 C	-0.30 C
1963	12.8 C	-0.70 C
1964	13.3 C	-0.15 C
1965	13.0 C	-0.49 C
1966	12.8 C	-0.65 C
1967	13.3 C	-0.20 C
1968	12.9 C	-0.60 C
1969	13.8 C	+0.33 C
1970	13.3 C	-0.20 C
1971	13.5 C	+0.00 C
1972	13.7 C	+0.23 C
1973	14.0 C	+0.54 C
1975	13.6 C	+0.12 C
1976	12.7 C	-0.82 C
1977	13.5 C	+0.02 C
1978	13.5 C	+0.02 C
1979	13.5 C	+0.05 C
1980	13.8 C	+0.30 C
1981	13.4 C	-0.11 C
1982	14.0 C	+0.55 C
1983	14.1 C	+0.58 C
1984	13.3 C	-0.21 C
1985	13.3 C	-0.23 C
1986	13.0 C	-0.52 C
1987	13.6 C	+0.10 C
1988	13.6 C	+0.09 C
1989	13.5 C	+0.04 C
1990	13.2 C	-0.27 C
1991	13.9 C	+0.36 C
1992	13.5 C	+0.02 C
1993	14.2 C	+0.67 C
1994	13.9 C	+0.41 C
1995	12.3 C	-1.21 C
2000	13.7 C	+0.17 C
2003	14.7 C	+1.21 C
2007	14.3 C	+0.83 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1962 to 2007. In Fahrenheit: 0.3 F (0.1 to 0.6) 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 Loma Alta (Cfe)
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.3) per decade	0.3 F (0.1 to 0.6) per decade	1962 to 2007	36	Rise
Mean daily maximum	0.3 C (0.1 to 0.6) per decade	0.6 F (0.2 to 1.1) per decade	1962 to 2007	36	Rise
Mean daily minimum	0.04 C (-0.10 to 0.17) per decade	0.1 F (-0.2 to 0.3) per decade	1962 to 2007	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 2008

Yearly extremes at Loma Alta (Cfe): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	36.7 C (98.1 F)	1990	30.6 C (87.1 F)	46
Coldest night (TNn)	-10.0 C (14.0 F)	1976	-5.0 C (23.0 F)	46
Wettest day (Rx1day)	189.0 mm (7.4 in)	1999	41.4 mm (1.6 in)	46
Wettest five days (Rx5day)	402.0 mm (15.8 in)	1999	85.1 mm (3.4 in)	46
Longest dry spell (CDD)	103 days	1973	40 days	46

Hottest day (TXx)

The hottest day of the year at Loma Alta (Cfe), 1961 to 2008. The record is 36.7 C (98.1 F) in 1990, marked on the chart; the median year is 30.6 C (87.1 F).

Hottest day (TXx) at Loma Alta (Cfe) by year
Year	Hottest day (TXx)
1961	25.0 C (77.0 F)
1962	28.9 C (84.0 F)
1963	27.8 C (82.0 F)
1964	30.0 C (86.0 F)
1965	27.8 C (82.0 F)
1966	26.7 C (80.1 F)
1967	30.0 C (86.0 F)
1968	27.8 C (82.0 F)
1969	30.6 C (87.1 F)
1970	30.6 C (87.1 F)
1971	31.7 C (89.1 F)
1972	30.6 C (87.1 F)
1973	31.7 C (89.1 F)
1974	25.0 C (77.0 F)
1975	30.6 C (87.1 F)
1976	30.6 C (87.1 F)
1977	35.0 C (95.0 F)
1978	35.6 C (96.1 F)
1979	33.9 C (93.0 F)
1980	31.7 C (89.1 F)
1981	31.7 C (89.1 F)
1982	33.9 C (93.0 F)
1983	35.0 C (95.0 F)
1984	32.8 C (91.0 F)
1985	30.6 C (87.1 F)
1986	32.8 C (91.0 F)
1987	31.7 C (89.1 F)
1988	33.9 C (93.0 F)
1989	35.6 C (96.1 F)
1990	36.7 C (98.1 F)
1991	33.9 C (93.0 F)
1992	28.9 C (84.0 F)
1993	30.6 C (87.1 F)
1994	31.7 C (89.1 F)
1995	25.6 C (78.1 F)
1996	30.0 C (86.0 F)
1997	26.7 C (80.1 F)
1998	33.9 C (93.0 F)
1999	30.6 C (87.1 F)
2000	30.0 C (86.0 F)
2003	33.9 C (93.0 F)
2004	30.0 C (86.0 F)
2005	31.7 C (89.1 F)
2006	30.0 C (86.0 F)
2007	30.0 C (86.0 F)
2008	30.6 C (87.1 F)

Coldest night (TNn)

The coldest night of the year at Loma Alta (Cfe), 1961 to 2008. The record is -10.0 C (14.0 F) in 1976, marked on the chart; the median year is -5.0 C (23.0 F).

Coldest night (TNn) at Loma Alta (Cfe) by year
Year	Coldest night (TNn)
1961	0.0 C (32.0 F)
1962	-4.4 C (24.1 F)
1963	-6.1 C (21.0 F)
1964	-5.0 C (23.0 F)
1965	-4.4 C (24.1 F)
1966	-8.3 C (17.1 F)
1967	-5.0 C (23.0 F)
1968	-5.0 C (23.0 F)
1969	-2.2 C (28.0 F)
1970	-7.2 C (19.0 F)
1971	-5.0 C (23.0 F)
1972	-6.1 C (21.0 F)
1973	-8.3 C (17.1 F)
1974	0.0 C (32.0 F)
1975	-3.3 C (26.1 F)
1976	-10.0 C (14.0 F)
1977	-5.0 C (23.0 F)
1978	-4.4 C (24.1 F)
1979	-6.1 C (21.0 F)
1980	-5.0 C (23.0 F)
1981	-4.4 C (24.1 F)
1982	-6.1 C (21.0 F)
1983	-4.4 C (24.1 F)
1984	-6.1 C (21.0 F)
1985	-6.1 C (21.0 F)
1986	-10.0 C (14.0 F)
1987	-7.2 C (19.0 F)
1988	-5.0 C (23.0 F)
1989	-10.0 C (14.0 F)
1990	-7.2 C (19.0 F)
1991	-4.4 C (24.1 F)
1992	-5.0 C (23.0 F)
1993	-2.2 C (28.0 F)
1994	-5.0 C (23.0 F)
1995	-3.3 C (26.1 F)
1996	-4.4 C (24.1 F)
1997	-8.3 C (17.1 F)
1998	-8.3 C (17.1 F)
1999	-8.3 C (17.1 F)
2000	-5.0 C (23.0 F)
2003	-6.1 C (21.0 F)
2004	-6.1 C (21.0 F)
2005	2.8 C (37.0 F)
2006	-6.1 C (21.0 F)
2007	-2.2 C (28.0 F)
2008	0.0 C (32.0 F)

Wettest day (Rx1day)

The wettest day of the year at Loma Alta (Cfe), 1961 to 2008. The record is 189.0 mm (7.4 in) in 1999, marked on the chart; the median year is 41.4 mm (1.6 in).

Wettest day (Rx1day) at Loma Alta (Cfe) by year
Year	Wettest day (Rx1day)
1961	59.9 mm (2.4 in)
1962	30.0 mm (1.2 in)
1963	35.8 mm (1.4 in)
1964	42.9 mm (1.7 in)
1965	40.9 mm (1.6 in)
1966	38.9 mm (1.5 in)
1967	30.0 mm (1.2 in)
1968	38.4 mm (1.5 in)
1969	63.0 mm (2.5 in)
1970	60.2 mm (2.4 in)
1971	26.4 mm (1.0 in)
1972	38.1 mm (1.5 in)
1973	35.3 mm (1.4 in)
1974	11.9 mm (0.5 in)
1975	53.8 mm (2.1 in)
1976	55.9 mm (2.2 in)
1977	42.9 mm (1.7 in)
1978	52.8 mm (2.1 in)
1979	55.1 mm (2.2 in)
1980	47.0 mm (1.9 in)
1981	37.3 mm (1.5 in)
1982	33.8 mm (1.3 in)
1983	95.8 mm (3.8 in)
1984	38.9 mm (1.5 in)
1985	34.8 mm (1.4 in)
1986	47.5 mm (1.9 in)
1987	33.8 mm (1.3 in)
1988	68.8 mm (2.7 in)
1989	59.9 mm (2.4 in)
1990	35.8 mm (1.4 in)
1991	64.5 mm (2.5 in)
1992	36.3 mm (1.4 in)
1993	33.8 mm (1.3 in)
1994	39.4 mm (1.6 in)
1995	58.9 mm (2.3 in)
1996	32.8 mm (1.3 in)
1997	28.2 mm (1.1 in)
1998	50.3 mm (2.0 in)
1999	189.0 mm (7.4 in)
2000	41.9 mm (1.6 in)
2003	61.2 mm (2.4 in)
2004	47.0 mm (1.9 in)
2005	59.9 mm (2.4 in)
2006	29.0 mm (1.1 in)
2007	73.4 mm (2.9 in)
2008	29.0 mm (1.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Loma Alta (Cfe), 1961 to 2008. The record is 402.0 mm (15.8 in) in 1999, marked on the chart; the median year is 85.1 mm (3.4 in).

Wettest five days (Rx5day) at Loma Alta (Cfe) by year
Year	Wettest five days (Rx5day)
1961	92.2 mm (3.6 in)
1962	59.9 mm (2.4 in)
1963	88.4 mm (3.5 in)
1964	71.9 mm (2.8 in)
1965	123.4 mm (4.9 in)
1966	92.6 mm (3.6 in)
1967	44.0 mm (1.7 in)
1968	73.7 mm (2.9 in)
1969	126.0 mm (5.0 in)
1970	88.8 mm (3.5 in)
1971	56.4 mm (2.2 in)
1972	94.3 mm (3.7 in)
1973	108.3 mm (4.3 in)
1974	13.7 mm (0.5 in)
1975	91.9 mm (3.6 in)
1976	140.8 mm (5.5 in)
1977	63.4 mm (2.5 in)
1978	113.8 mm (4.5 in)
1979	75.4 mm (3.0 in)
1980	85.1 mm (3.4 in)
1981	92.9 mm (3.7 in)
1982	67.2 mm (2.6 in)
1983	149.2 mm (5.9 in)
1984	84.6 mm (3.3 in)
1985	65.0 mm (2.6 in)
1986	86.4 mm (3.4 in)
1987	67.3 mm (2.6 in)
1988	161.0 mm (6.3 in)
1989	140.4 mm (5.5 in)
1990	67.4 mm (2.7 in)
1991	96.8 mm (3.8 in)
1992	68.9 mm (2.7 in)
1993	90.2 mm (3.6 in)
1994	61.3 mm (2.4 in)
1995	89.2 mm (3.5 in)
1996	55.7 mm (2.2 in)
1997	61.2 mm (2.4 in)
1998	93.0 mm (3.7 in)
1999	402.0 mm (15.8 in)
2000	74.2 mm (2.9 in)
2003	85.1 mm (3.4 in)
2004	67.7 mm (2.7 in)
2005	87.3 mm (3.4 in)
2006	57.5 mm (2.3 in)
2007	84.4 mm (3.3 in)
2008	66.0 mm (2.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Loma Alta (Cfe), 1961 to 2008. The record is 103 days in 1973, marked on the chart; the median year is 40 days.

Longest dry spell (CDD) at Loma Alta (Cfe) by year
Year	Longest dry spell (CDD)
1961	33 days
1962	80 days
1963	78 days
1964	38 days
1965	33 days
1966	51 days
1967	52 days
1968	45 days
1969	43 days
1970	57 days
1971	48 days
1972	32 days
1973	103 days
1974	24 days
1975	47 days
1976	38 days
1977	64 days
1978	52 days
1979	53 days
1980	33 days
1981	27 days
1982	44 days
1983	72 days
1984	33 days
1985	51 days
1986	34 days
1987	61 days
1988	29 days
1989	37 days
1990	28 days
1991	58 days
1992	44 days
1993	44 days
1994	38 days
1995	25 days
1996	34 days
1997	25 days
1998	71 days
1999	41 days
2000	34 days
2003	50 days
2004	20 days
2005	18 days
2006	28 days
2007	24 days
2008	37 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

35 years with a frost

Across 35 years with a frost, the median last spring frost at Loma Alta (Cfe) falls on 18 March and the median first autumn frost on 5 November, which leaves a median of 231 days between them.

Fitted over all years, the growing season changes by +7.6 days per decade at this station.

Frost dates and growing season at Loma Alta (Cfe)
Measure	Median, all years	Earliest period	Recent period (1967 to 2007)	Recent against earliest	Fitted trend
Last spring frost	18 March	n/a	11 March	n/a	-5.3 days per decade
First autumn frost	5 November	n/a	6 November	n/a	+2.3 days per decade
Growing days	231 days	n/a	238 days	n/a	+7.6 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

38 years, 1962 to 2007

A day with at least 43.0 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 160.7 mm (6.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Loma Alta (Cfe): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	43.0 mm (1.7 in)
5 years	59.2 mm (2.3 in)
10 years	74.3 mm (2.9 in)
25 years	100.5 mm (4.0 in)
50 years	126.8 mm (5.0 in)	Longer than the 38 years of record
100 years	160.7 mm (6.3 in)	Longer than the 38 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, 38 years of values from 1962 to 2007.

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: 189.0 mm (7.4 in) in 1999; 95.8 mm (3.8 in) in 1983; 73.4 mm (2.9 in) in 2007.

Download the Data

Data for Loma Alta (Cfe) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Loma Alta (Cfe) 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).