Jalacingo Weather Records (MXN00030074)

Record envelope, standing records and threshold days for Jalacingo (MXN00030074), Mexico, with 87 years of record.

Key Facts for Jalacingo

Jalacingo (MXN00030074) is a weather station in Mexico at 19.80 latitude and -97.30 longitude, 1,880 m (6,167 ft) above sea level.
The station reports from 1925 to 2011, 87 years of record.
1,464 records set at Jalacingo still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Jalacingo set a daily record precipitation of 40.9 mm (1.6 in) on 31 December 2011.

About the Station

Location: Mexico, 19.80 latitude, -97.30 longitude.
Elevation: 1,880 m (6,167 ft).
Period of record: 1925 to 2011, 87 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 Jalacingo. 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 Jalacingo, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	30.6 C (87.1 F)	-6.7 C (19.9 F)	n/a	n/a
Feb	30.0 C (86.0 F)	-7.8 C (18.0 F)	n/a	n/a
Mar	32.8 C (91.0 F)	-5.0 C (23.0 F)	n/a	n/a
Apr	33.9 C (93.0 F)	-2.2 C (28.0 F)	n/a	n/a
May	36.7 C (98.1 F)	-0.6 C (30.9 F)	n/a	n/a
Jun	32.8 C (91.0 F)	0.6 C (33.1 F)	n/a	n/a
Jul	35.0 C (95.0 F)	2.8 C (37.0 F)	n/a	n/a
Aug	30.0 C (86.0 F)	1.7 C (35.1 F)	n/a	n/a
Sep	30.0 C (86.0 F)	-1.1 C (30.0 F)	n/a	n/a
Oct	32.8 C (91.0 F)	-2.2 C (28.0 F)	n/a	n/a
Nov	31.7 C (89.1 F)	-3.9 C (25.0 F)	n/a	n/a
Dec	27.8 C (82.0 F)	-6.1 C (21.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Jalacingo still stand. 1925 holds the most, with 96.

Standing records at Jalacingo by the year they were set
Year set	Standing records
1925	96
1926	37
1927	9
1929	68
1934	9
1935	88
1936	96
1938	16
1940	17
1955	6
1958	3
1959	13
1961	20
1962	22
1963	14
1964	17
1965	15
1966	23
1967	19
1968	19
1969	16
1970	11
1971	8
1972	3
1973	17
1974	13
1975	14
1976	20
1977	10
1978	13
1979	11
1980	14
1981	41
1982	31
1983	66
1984	37
1985	17
1986	25
1987	32
1988	25
1989	18
1990	15
1991	25
1992	9
1993	18
1994	14
1995	16
1996	14
1997	26
1998	58
1999	7
2000	10
2001	9
2002	16
2003	10
2004	31
2005	4
2006	35
2007	34
2008	10
2009	40
2011	14

All-Time Record Progression

4 new records

4 all-time records were set at Jalacingo between 27 April 1984 and 16 July 2009. Each dot is a new record.

When Jalacingo set new all-time records
Date	Kind	Detail
1984-04-27	Record high minimum temperature	Record high minimum temperature 20.6 C (69.1 F)
1984-04-29	Record high minimum temperature	Record high minimum temperature 21.7 C (71.1 F)
1990-05-30	Record high maximum temperature	Record high maximum temperature 36.7 C (98.1 F)
2009-07-16	Record high minimum temperature	Record high minimum temperature 22.8 C (73.0 F)

Wettest Day of Each Month

Sep: 323.9 mm (12.8 in)

The wettest day on record for each calendar month at Jalacingo. The most was 323.9 mm (12.8 in) on 28 September 1955.

Record daily precipitation for each month at Jalacingo
Month	Record daily precipitation (mm)	Date
Jan	70.1 mm (2.8 in)	14 January 1976
Feb	64.8 mm (2.6 in)	25 February 2006
Mar	67.8 mm (2.7 in)	29 March 1971
Apr	95.0 mm (3.7 in)	11 April 1935
May	119.9 mm (4.7 in)	8 May 1984
Jun	154.9 mm (6.1 in)	17 June 1999
Jul	110.5 mm (4.4 in)	6 July 1972
Aug	110.0 mm (4.3 in)	3 August 1979
Sep	323.9 mm (12.8 in)	28 September 1955
Oct	274.8 mm (10.8 in)	20 October 1995
Nov	110.0 mm (4.3 in)	7 November 1972
Dec	74.9 mm (2.9 in)	6 December 1983

Period of Record Coverage

1925 to 2011

63 years of record at Jalacingo, 1925 to 2011. 15 years have data for under 90 percent of days and are left out of rankings: 1925, 1926, 1927, 1929, 1934, 1955, 1958, 1959 and others.

Days with data per year at Jalacingo
Year	Days with data	Share of year	Complete
1925	244	67%	No
1926	241	66%	No
1927	92	25%	No
1929	178	49%	No
1934	122	33%	No
1935	365	100%	Yes
1936	355	97%	Yes
1938	362	99%	Yes
1940	363	99%	Yes
1955	61	17%	No
1958	88	24%	No
1959	289	79%	No
1961	363	99%	Yes
1962	363	99%	Yes
1963	359	98%	Yes
1964	360	98%	Yes
1965	363	99%	Yes
1966	363	99%	Yes
1967	359	98%	Yes
1968	362	99%	Yes
1969	363	99%	Yes
1970	359	98%	Yes
1971	363	99%	Yes
1972	364	99%	Yes
1973	359	98%	Yes
1974	360	99%	Yes
1975	361	99%	Yes
1976	360	98%	Yes
1977	363	99%	Yes
1978	361	99%	Yes
1979	360	99%	Yes
1980	362	99%	Yes
1981	362	99%	Yes
1982	356	98%	Yes
1983	359	98%	Yes
1984	355	97%	Yes
1985	362	99%	Yes
1986	362	99%	Yes
1987	353	97%	Yes
1988	360	98%	Yes
1989	352	96%	Yes
1990	358	98%	Yes
1991	362	99%	Yes
1992	287	78%	No
1993	365	100%	Yes
1994	363	99%	Yes
1995	296	81%	No
1996	361	99%	Yes
1997	359	98%	Yes
1998	363	99%	Yes
1999	361	99%	Yes
2000	362	99%	Yes
2001	362	99%	Yes
2002	363	99%	Yes
2003	365	100%	Yes
2004	366	100%	Yes
2005	243	67%	No
2006	211	58%	No
2007	363	99%	Yes
2008	31	8%	No
2009	300	82%	No
2010	207	57%	No
2011	334	92%	Yes

Latest Records

Latest records at Jalacingo
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 December 2011	Jalacingo, MX	daily rain	40.9 mm (1.6 in)	19.3 mm (0.8 in)	42 years	41 of 100 (Notable)
17 December 2011	Jalacingo, MX	daily rain	37.8 mm (1.5 in)	3.0 mm (0.12 in)	4 years	12 of 100 (Routine)
17 November 2011	Jalacingo, MX	daily rain	61.0 mm (2.4 in)	41.2 mm (1.6 in)	17 years	39 of 100 (Notable)
28 September 2011	Jalacingo, MX	daily high max (Tie)	25.6 C (78.1 F)	tie	24 years	3 of 100 (Routine)
27 September 2011	Jalacingo, MX	daily high max	26.7 C (80.1 F)	1.7 C (3.1 F)	28 years	21 of 100 (Routine)
25 September 2011	Jalacingo, MX	daily high max (Tie)	25.6 C (78.1 F)	tie	70 years	7 of 100 (Routine)
13 September 2011	Jalacingo, MX	daily rain	37.8 mm (1.5 in)	1.0 mm (0.04 in)	48 years	22 of 100 (Routine)
10 September 2011	Jalacingo, MX	daily low max (Tie)	12.8 C (55.0 F)	tie	81 years	8 of 100 (Routine)
9 September 2011	Jalacingo, MX	daily low max	12.8 C (55.0 F)	2.2 C (4.0 F)	42 years	26 of 100 (Routine)
8 September 2011	Jalacingo, MX	daily low max	12.8 C (55.0 F)	2.8 C (5.0 F)	76 years	39 of 100 (Notable)
21 August 2011	Jalacingo, MX	daily rain (Tie)	62.0 mm (2.4 in)	tie	49 years	5 of 100 (Routine)
10 August 2011	Jalacingo, MX	daily high min (Tie)	12.8 C (55.0 F)	tie	24 years	3 of 100 (Routine)
9 August 2011	Jalacingo, MX	daily high max (Tie)	28.9 C (84.0 F)	tie	6 years	2 of 100 (Routine)
6 August 2011	Jalacingo, MX	monthly high max (Tie)	30.0 C (86.0 F)	tie	6 years	5 of 100 (Routine)
4 August 2011	Jalacingo, MX	daily high max	27.8 C (82.0 F)	2.2 C (4.0 F)	81 years	39 of 100 (Notable)
28 June 2011	Jalacingo, MX	daily rain	97.8 mm (3.9 in)	16.8 mm (0.7 in)	34 years	26 of 100 (Routine)
18 June 2011	Jalacingo, MX	daily high min	15.0 C (59.0 F)	1.1 C (2.0 F)	29 years	20 of 100 (Routine)
31 May 2011	Jalacingo, MX	daily high min	16.7 C (62.1 F)	1.1 C (2.0 F)	22 years	17 of 100 (Routine)
30 May 2011	Jalacingo, MX	daily high min	18.9 C (66.0 F)	1.1 C (2.0 F)	20 years	17 of 100 (Routine)
28 May 2011	Jalacingo, MX	daily high min	17.8 C (64.0 F)	2.2 C (4.0 F)	29 years	23 of 100 (Routine)

Climate Trend

47 complete years, 1935 to 2007

One stripe for each of 47 complete years at Jalacingo, 1935 to 2007. Blue stripes are years cooler than the station's own mean of 14.3 C (57.8 F); red stripes are warmer. The coolest year was 1935, at 10.5 C (50.9 F), and the warmest was 1998, at 16.5 C (61.6 F). The strongest colour marks a difference of 3.9 C (7.0 F).

Annual mean temperature at Jalacingo as warming stripes, 1935 to 2007
Year	Annual mean temperature	Difference from the station mean
1935	10.5 C	-3.83 C
1936	11.5 C	-2.78 C
1938	14.5 C	+0.17 C
1940	14.9 C	+0.53 C
1961	13.2 C	-1.15 C
1962	13.2 C	-1.13 C
1963	13.2 C	-1.16 C
1964	13.6 C	-0.73 C
1965	13.3 C	-1.00 C
1966	12.7 C	-1.60 C
1967	12.9 C	-1.43 C
1968	12.8 C	-1.54 C
1969	14.2 C	-0.09 C
1970	13.4 C	-0.89 C
1971	12.9 C	-1.40 C
1972	13.0 C	-1.37 C
1973	13.2 C	-1.09 C
1974	13.0 C	-1.28 C
1975	13.4 C	-0.89 C
1976	12.5 C	-1.78 C
1977	13.2 C	-1.16 C
1978	13.1 C	-1.24 C
1979	13.2 C	-1.15 C
1980	13.8 C	-0.54 C
1981	15.7 C	+1.33 C
1982	16.2 C	+1.83 C
1983	16.3 C	+1.95 C
1984	15.6 C	+1.27 C
1985	15.9 C	+1.54 C
1986	16.0 C	+1.68 C
1987	15.7 C	+1.36 C
1988	15.6 C	+1.24 C
1989	15.5 C	+1.22 C
1990	15.5 C	+1.21 C
1991	16.1 C	+1.73 C
1993	15.7 C	+1.33 C
1994	15.7 C	+1.37 C
1996	15.4 C	+1.08 C
1997	15.4 C	+1.10 C
1998	16.5 C	+2.14 C
1999	15.0 C	+0.65 C
2000	15.1 C	+0.73 C
2001	14.3 C	+0.02 C
2002	15.1 C	+0.76 C
2003	14.6 C	+0.25 C
2004	15.2 C	+0.91 C
2007	16.1 C	+1.78 C

The annual mean temperature here has risen by 0.5 C (0.4 to 0.7) per decade over 1935 to 2007. In Fahrenheit: 1.0 F (0.7 to 1.3) per decade. The slope is a straight line fitted to 47 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Jalacingo
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.5 C (0.4 to 0.7) per decade	1.0 F (0.7 to 1.3) per decade	1935 to 2007	47	Rise
Mean daily maximum	0.6 C (0.4 to 0.8) per decade	1.0 F (0.7 to 1.4) per decade	1935 to 2007	47	Rise
Mean daily minimum	0.5 C (0.3 to 0.7) per decade	0.9 F (0.6 to 1.3) per decade	1935 to 2007	47	Rise

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

1925 to 2011

Yearly extremes at Jalacingo: 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	30.0 C (86.0 F)	63
Coldest night (TNn)	-7.8 C (18.0 F)	1935	-0.6 C (30.9 F)	63
Wettest day (Rx1day)	323.9 mm (12.8 in)	1955	95.0 mm (3.7 in)	63
Wettest five days (Rx5day)	568.7 mm (22.4 in)	1955	187.0 mm (7.4 in)	63
Longest dry spell (CDD)	56 days	1991	20 days	63

Hottest day (TXx)

The hottest day of the year at Jalacingo, 1925 to 2011. The record is 36.7 C (98.1 F) in 1990, marked on the chart; the median year is 30.0 C (86.0 F).

Hottest day (TXx) at Jalacingo by year
Year	Hottest day (TXx)
1925	27.8 C (82.0 F)
1926	25.6 C (78.1 F)
1927	27.2 C (81.0 F)
1929	29.4 C (84.9 F)
1934	23.9 C (75.0 F)
1935	26.1 C (79.0 F)
1936	27.2 C (81.0 F)
1938	30.0 C (86.0 F)
1940	30.0 C (86.0 F)
1955	23.9 C (75.0 F)
1958	23.9 C (75.0 F)
1959	27.2 C (81.0 F)
1961	31.1 C (88.0 F)
1962	30.0 C (86.0 F)
1963	30.6 C (87.1 F)
1964	32.2 C (90.0 F)
1965	28.9 C (84.0 F)
1966	27.2 C (81.0 F)
1967	28.9 C (84.0 F)
1968	27.8 C (82.0 F)
1969	32.2 C (90.0 F)
1970	33.9 C (93.0 F)
1971	28.9 C (84.0 F)
1972	29.4 C (84.9 F)
1973	31.7 C (89.1 F)
1974	29.4 C (84.9 F)
1975	28.9 C (84.0 F)
1976	28.3 C (82.9 F)
1977	29.4 C (84.9 F)
1978	29.4 C (84.9 F)
1979	29.4 C (84.9 F)
1980	28.9 C (84.0 F)
1981	30.6 C (87.1 F)
1982	31.7 C (89.1 F)
1983	32.8 C (91.0 F)
1984	31.7 C (89.1 F)
1985	30.0 C (86.0 F)
1986	32.8 C (91.0 F)
1987	30.6 C (87.1 F)
1988	31.7 C (89.1 F)
1989	32.8 C (91.0 F)
1990	36.7 C (98.1 F)
1991	32.8 C (91.0 F)
1992	30.0 C (86.0 F)
1993	30.6 C (87.1 F)
1994	31.7 C (89.1 F)
1995	30.0 C (86.0 F)
1996	30.0 C (86.0 F)
1997	30.0 C (86.0 F)
1998	35.0 C (95.0 F)
1999	31.7 C (89.1 F)
2000	31.7 C (89.1 F)
2001	27.8 C (82.0 F)
2002	30.6 C (87.1 F)
2003	30.0 C (86.0 F)
2004	30.0 C (86.0 F)
2005	30.0 C (86.0 F)
2006	35.0 C (95.0 F)
2007	32.8 C (91.0 F)
2008	30.6 C (87.1 F)
2009	35.0 C (95.0 F)
2010	30.0 C (86.0 F)
2011	31.7 C (89.1 F)

Coldest night (TNn)

The coldest night of the year at Jalacingo, 1925 to 2011. The record is -7.8 C (18.0 F) in 1935, marked on the chart; the median year is -0.6 C (30.9 F).

Coldest night (TNn) at Jalacingo by year
Year	Coldest night (TNn)
1925	-3.3 C (26.1 F)
1926	-6.1 C (21.0 F)
1927	0.0 C (32.0 F)
1929	-5.0 C (23.0 F)
1934	-6.1 C (21.0 F)
1935	-7.8 C (18.0 F)
1936	-4.4 C (24.1 F)
1938	-3.3 C (26.1 F)
1940	-2.2 C (28.0 F)
1955	-0.6 C (30.9 F)
1958	-0.6 C (30.9 F)
1959	-1.1 C (30.0 F)
1961	-3.9 C (25.0 F)
1962	-5.6 C (21.9 F)
1963	-2.8 C (27.0 F)
1964	-3.3 C (26.1 F)
1965	-3.3 C (26.1 F)
1966	-3.9 C (25.0 F)
1967	-5.0 C (23.0 F)
1968	-3.9 C (25.0 F)
1969	0.0 C (32.0 F)
1970	-2.8 C (27.0 F)
1971	-0.6 C (30.9 F)
1972	-3.3 C (26.1 F)
1973	-6.1 C (21.0 F)
1974	-2.2 C (28.0 F)
1975	-3.9 C (25.0 F)
1976	-5.0 C (23.0 F)
1977	-3.3 C (26.1 F)
1978	-3.3 C (26.1 F)
1979	-6.1 C (21.0 F)
1980	-4.4 C (24.1 F)
1981	1.7 C (35.1 F)
1982	0.0 C (32.0 F)
1983	0.0 C (32.0 F)
1984	0.0 C (32.0 F)
1985	0.0 C (32.0 F)
1986	0.0 C (32.0 F)
1987	0.0 C (32.0 F)
1988	0.0 C (32.0 F)
1989	0.0 C (32.0 F)
1990	0.0 C (32.0 F)
1991	1.7 C (35.1 F)
1992	0.6 C (33.1 F)
1993	-5.0 C (23.0 F)
1994	0.0 C (32.0 F)
1995	1.1 C (34.0 F)
1996	-2.2 C (28.0 F)
1997	-2.2 C (28.0 F)
1998	2.2 C (36.0 F)
1999	0.0 C (32.0 F)
2000	0.0 C (32.0 F)
2001	0.0 C (32.0 F)
2002	-2.2 C (28.0 F)
2003	0.0 C (32.0 F)
2004	1.7 C (35.1 F)
2005	2.8 C (37.0 F)
2006	2.8 C (37.0 F)
2007	0.6 C (33.1 F)
2008	0.0 C (32.0 F)
2009	0.0 C (32.0 F)
2010	0.0 C (32.0 F)
2011	0.0 C (32.0 F)

Wettest day (Rx1day)

The wettest day of the year at Jalacingo, 1925 to 2011. The record is 323.9 mm (12.8 in) in 1955, marked on the chart; the median year is 95.0 mm (3.7 in).

Wettest day (Rx1day) at Jalacingo by year
Year	Wettest day (Rx1day)
1925	67.3 mm (2.6 in)
1926	48.5 mm (1.9 in)
1927	84.3 mm (3.3 in)
1929	78.0 mm (3.1 in)
1934	74.9 mm (2.9 in)
1935	95.0 mm (3.7 in)
1936	126.5 mm (5.0 in)
1938	118.6 mm (4.7 in)
1940	99.8 mm (3.9 in)
1955	323.9 mm (12.8 in)
1958	95.3 mm (3.8 in)
1959	94.5 mm (3.7 in)
1961	93.2 mm (3.7 in)
1962	65.0 mm (2.6 in)
1963	82.8 mm (3.3 in)
1964	98.3 mm (3.9 in)
1965	71.4 mm (2.8 in)
1966	121.4 mm (4.8 in)
1967	130.8 mm (5.1 in)
1968	91.7 mm (3.6 in)
1969	117.3 mm (4.6 in)
1970	73.9 mm (2.9 in)
1971	97.3 mm (3.8 in)
1972	152.9 mm (6.0 in)
1973	76.2 mm (3.0 in)
1974	315.5 mm (12.4 in)
1975	182.9 mm (7.2 in)
1976	124.0 mm (4.9 in)
1977	73.7 mm (2.9 in)
1978	185.2 mm (7.3 in)
1979	110.0 mm (4.3 in)
1980	95.8 mm (3.8 in)
1981	179.8 mm (7.1 in)
1982	119.9 mm (4.7 in)
1983	99.8 mm (3.9 in)
1984	119.9 mm (4.7 in)
1985	179.8 mm (7.1 in)
1986	110.0 mm (4.3 in)
1987	47.8 mm (1.9 in)
1988	153.9 mm (6.1 in)
1989	70.9 mm (2.8 in)
1990	91.9 mm (3.6 in)
1991	10.4 mm (0.4 in)
1992	90.4 mm (3.6 in)
1993	89.7 mm (3.5 in)
1994	64.8 mm (2.6 in)
1995	274.8 mm (10.8 in)
1996	86.9 mm (3.4 in)
1997	79.8 mm (3.1 in)
1998	69.9 mm (2.8 in)
1999	154.9 mm (6.1 in)
2000	159.8 mm (6.3 in)
2001	173.0 mm (6.8 in)
2002	89.9 mm (3.5 in)
2003	182.9 mm (7.2 in)
2004	72.9 mm (2.9 in)
2005	59.9 mm (2.4 in)
2006	64.8 mm (2.6 in)
2007	81.8 mm (3.2 in)
2008	35.8 mm (1.4 in)
2009	113.8 mm (4.5 in)
2010	21.8 mm (0.9 in)
2011	97.8 mm (3.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Jalacingo, 1925 to 2011. The record is 568.7 mm (22.4 in) in 1955, marked on the chart; the median year is 187.0 mm (7.4 in).

Wettest five days (Rx5day) at Jalacingo by year
Year	Wettest five days (Rx5day)
1925	203.4 mm (8.0 in)
1926	144.3 mm (5.7 in)
1927	177.8 mm (7.0 in)
1929	125.7 mm (4.9 in)
1934	160.2 mm (6.3 in)
1935	206.8 mm (8.1 in)
1936	264.7 mm (10.4 in)
1938	126.4 mm (5.0 in)
1940	112.3 mm (4.4 in)
1955	568.7 mm (22.4 in)
1958	193.9 mm (7.6 in)
1959	187.0 mm (7.4 in)
1961	181.1 mm (7.1 in)
1962	110.3 mm (4.3 in)
1963	157.2 mm (6.2 in)
1964	176.2 mm (6.9 in)
1965	139.2 mm (5.5 in)
1966	255.2 mm (10.0 in)
1967	248.4 mm (9.8 in)
1968	187.2 mm (7.4 in)
1969	306.3 mm (12.1 in)
1970	140.7 mm (5.5 in)
1971	160.7 mm (6.3 in)
1972	407.4 mm (16.0 in)
1973	164.4 mm (6.5 in)
1974	406.2 mm (16.0 in)
1975	385.6 mm (15.2 in)
1976	378.0 mm (14.9 in)
1977	132.4 mm (5.2 in)
1978	232.8 mm (9.2 in)
1979	302.7 mm (11.9 in)
1980	97.5 mm (3.8 in)
1981	278.4 mm (11.0 in)
1982	278.4 mm (11.0 in)
1983	109.7 mm (4.3 in)
1984	325.6 mm (12.8 in)
1985	233.2 mm (9.2 in)
1986	165.6 mm (6.5 in)
1987	93.5 mm (3.7 in)
1988	243.4 mm (9.6 in)
1989	257.3 mm (10.1 in)
1990	182.2 mm (7.2 in)
1991	16.5 mm (0.6 in)
1992	247.4 mm (9.7 in)
1993	273.1 mm (10.8 in)
1994	121.9 mm (4.8 in)
1995	324.4 mm (12.8 in)
1996	219.2 mm (8.6 in)
1997	159.4 mm (6.3 in)
1998	215.7 mm (8.5 in)
1999	263.2 mm (10.4 in)
2000	176.6 mm (7.0 in)
2001	331.5 mm (13.1 in)
2002	126.3 mm (5.0 in)
2003	290.4 mm (11.4 in)
2004	113.3 mm (4.5 in)
2005	131.6 mm (5.2 in)
2006	114.5 mm (4.5 in)
2007	163.8 mm (6.4 in)
2008	64.3 mm (2.5 in)
2009	374.2 mm (14.7 in)
2010	60.1 mm (2.4 in)
2011	296.8 mm (11.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Jalacingo, 1925 to 2011. The record is 56 days in 1991, marked on the chart; the median year is 20 days.

Longest dry spell (CDD) at Jalacingo by year
Year	Longest dry spell (CDD)
1925	18 days
1926	26 days
1927	24 days
1929	29 days
1934	9 days
1935	18 days
1936	17 days
1938	17 days
1940	28 days
1955	6 days
1958	10 days
1959	12 days
1961	26 days
1962	20 days
1963	20 days
1964	27 days
1965	35 days
1966	17 days
1967	18 days
1968	13 days
1969	24 days
1970	35 days
1971	23 days
1972	24 days
1973	16 days
1974	16 days
1975	17 days
1976	13 days
1977	17 days
1978	21 days
1979	14 days
1980	28 days
1981	25 days
1982	16 days
1983	37 days
1984	23 days
1985	18 days
1986	18 days
1987	20 days
1988	30 days
1989	28 days
1990	22 days
1991	56 days
1992	19 days
1993	20 days
1994	18 days
1995	23 days
1996	20 days
1997	16 days
1998	38 days
1999	29 days
2000	19 days
2001	23 days
2002	32 days
2003	40 days
2004	17 days
2005	21 days
2006	14 days
2007	46 days
2008	6 days
2009	40 days
2010	14 days
2011	33 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

23 years with a frost

Across 23 years with a frost, the median last spring frost at Jalacingo falls on 6 March and the median first autumn frost on 29 November, which leaves a median of 263 days between them.

Frost dates and growing season at Jalacingo
Measure	Median, all years	Earliest period	Recent period (1935 to 2003)	Recent against earliest	Fitted trend
Last spring frost	6 March	n/a	6 March	n/a	n/a
First autumn frost	29 November	n/a	29 November	n/a	n/a
Growing days	263 days	n/a	263 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

50 years, 1935 to 2011

A day with at least 102.6 mm (4.0 in) of rain is expected about once in 2 years. A day with at least 312.2 mm (12.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Jalacingo: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	102.6 mm (4.0 in)
5 years	147.0 mm (5.8 in)
10 years	180.6 mm (7.1 in)
25 years	228.5 mm (9.0 in)
50 years	268.4 mm (10.6 in)
100 years	312.2 mm (12.3 in)	Longer than the 50 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, 50 years of values from 1935 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: 315.5 mm (12.4 in) in 1974; 274.8 mm (10.8 in) in 1995; 185.2 mm (7.3 in) in 1978.

Station Changes

3 suspected

3 changes were suspected in the annual mean temperature of Jalacingo, at 1971, 1981 and 1987. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 1971 ran 0.5 C (0.9 F) lower than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1981 ran 1.9 C (3.3 F) higher than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1987 ran 0.8 C (1.4 F) lower than in the years before (likely change).

Suspected changes in the annual mean temperature at Jalacingo, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
1971	-0.5	-0.9	likely	5
1981	+1.9	+3.3	likely	5
1987	-0.8	-1.4	likely	5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Download the Data

Data for Jalacingo standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Jalacingo 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 2026-10-12 (12 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).