La Ascencion Weather Records (MXN00019111)

Record envelope, standing records and threshold days for La Ascencion (MXN00019111), Mexico, with 32 years of record.

Key Facts for La Ascencion

La Ascencion (MXN00019111) is a weather station in Mexico at 24.32 latitude and -99.90 longitude, 1,980 m (6,496 ft) above sea level.
The station reports from 1980 to 2011, 32 years of record.
1,464 records set at La Ascencion still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 24.32 latitude, -99.90 longitude.
Elevation: 1,980 m (6,496 ft).
Period of record: 1980 to 2011, 32 years.
Eligible elements: none yet.

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 La Ascencion. 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 La Ascencion, 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)	-11.1 C (12.0 F)	n/a	n/a
Feb	33.9 C (93.0 F)	-10.0 C (14.0 F)	n/a	n/a
Mar	35.0 C (95.0 F)	-8.3 C (17.1 F)	n/a	n/a
Apr	37.8 C (100.0 F)	-3.3 C (26.1 F)	n/a	n/a
May	37.8 C (100.0 F)	0.0 C (32.0 F)	n/a	n/a
Jun	35.6 C (96.1 F)	0.0 C (32.0 F)	n/a	n/a
Jul	35.6 C (96.1 F)	2.8 C (37.0 F)	n/a	n/a
Aug	33.9 C (93.0 F)	2.8 C (37.0 F)	n/a	n/a
Sep	31.7 C (89.1 F)	-5.0 C (23.0 F)	n/a	n/a
Oct	35.0 C (95.0 F)	-6.1 C (21.0 F)	n/a	n/a
Nov	30.6 C (87.1 F)	-7.2 C (19.0 F)	n/a	n/a
Dec	28.9 C (84.0 F)	-10.0 C (14.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at La Ascencion still stand. 2003 holds the most, with 176.

Standing records at La Ascencion by the year they were set
Year set	Standing records
1980	82
1981	67
1982	82
1983	59
1984	42
1985	62
1986	14
1997	63
1998	81
1999	38
2000	81
2001	54
2002	73
2003	176
2004	77
2005	84
2006	58
2008	67
2009	31
2010	71
2011	102

Wettest Day of Each Month

Jun: 129.8 mm (5.1 in)

The wettest day on record for each calendar month at La Ascencion. The most was 129.8 mm (5.1 in) on 30 June 2010.

Record daily precipitation for each month at La Ascencion
Month	Record daily precipitation (mm)	Date
Jan	27.9 mm (1.1 in)	24 January 1984
Feb	34.3 mm (1.4 in)	25 February 2005
Mar	24.9 mm (1.0 in)	12 March 1983
Apr	29.0 mm (1.1 in)	24 April 1985
May	57.9 mm (2.3 in)	16 May 2008
Jun	129.8 mm (5.1 in)	30 June 2010
Jul	59.9 mm (2.4 in)	1 July 2010
Aug	63.8 mm (2.5 in)	16 August 2003
Sep	51.8 mm (2.0 in)	12 September 1982
Oct	93.0 mm (3.7 in)	5 October 2000
Nov	20.8 mm (0.8 in)	21 November 1980
Dec	17.8 mm (0.7 in)	9 December 1980

Period of Record Coverage

1980 to 2011

21 years of record at La Ascencion, 1980 to 2011. 10 years have data for under 90 percent of days and are left out of rankings: 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1997 and others.

Days with data per year at La Ascencion
Year	Days with data	Share of year	Complete
1980	234	64%	No
1981	305	84%	No
1982	274	75%	No
1983	271	74%	No
1984	120	33%	No
1985	266	73%	No
1986	118	32%	No
1997	183	50%	No
1998	364	100%	Yes
1999	151	41%	No
2000	366	100%	Yes
2001	365	100%	Yes
2002	363	99%	Yes
2003	364	100%	Yes
2004	363	99%	Yes
2005	364	100%	Yes
2006	332	91%	Yes
2008	366	100%	Yes
2009	122	33%	No
2010	365	100%	Yes
2011	358	98%	Yes

Latest Records

No records were set at this station in the latest data.

Climate Trend

10 complete years, 1998 to 2011

One stripe for each of 10 complete years at La Ascencion, 1998 to 2011. Blue stripes are years cooler than the station's own mean of 15.5 C (59.8 F); red stripes are warmer. The coolest year was 2001, at 14.0 C (57.2 F), and the warmest was 2011, at 17.0 C (62.5 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at La Ascencion as warming stripes, 1998 to 2011
Year	Annual mean temperature	Difference from the station mean
1998	14.7 C	-0.72 C
2000	14.3 C	-1.18 C
2001	14.0 C	-1.44 C
2002	14.1 C	-1.32 C
2003	16.3 C	+0.80 C
2004	16.0 C	+0.49 C
2005	16.3 C	+0.88 C
2008	16.1 C	+0.64 C
2010	15.8 C	+0.34 C
2011	17.0 C	+1.50 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1980 to 2011

Yearly extremes at La Ascencion: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.8 C (100.0 F)	2008	35.0 C (95.0 F)	21
Coldest night (TNn)	-11.1 C (12.0 F)	1999	-6.1 C (21.0 F)	21
Wettest day (Rx1day)	129.8 mm (5.1 in)	2010	39.9 mm (1.6 in)	21
Wettest five days (Rx5day)	230.4 mm (9.1 in)	2010	70.3 mm (2.8 in)	21
Longest dry spell (CDD)	118 days	2011	54 days	21

Hottest day (TXx)

The hottest day of the year at La Ascencion, 1980 to 2011. The record is 37.8 C (100.0 F) in 2008, marked on the chart; the median year is 35.0 C (95.0 F).

Hottest day (TXx) at La Ascencion by year
Year	Hottest day (TXx)
1980	35.6 C (96.1 F)
1981	32.8 C (91.0 F)
1982	35.6 C (96.1 F)
1983	35.0 C (95.0 F)
1984	35.0 C (95.0 F)
1985	32.8 C (91.0 F)
1986	31.7 C (89.1 F)
1997	30.0 C (86.0 F)
1998	35.6 C (96.1 F)
1999	35.0 C (95.0 F)
2000	33.9 C (93.0 F)
2001	32.8 C (91.0 F)
2002	35.0 C (95.0 F)
2003	32.8 C (91.0 F)
2004	35.0 C (95.0 F)
2005	35.0 C (95.0 F)
2006	35.0 C (95.0 F)
2008	37.8 C (100.0 F)
2009	32.8 C (91.0 F)
2010	35.6 C (96.1 F)
2011	37.8 C (100.0 F)

Coldest night (TNn)

The coldest night of the year at La Ascencion, 1980 to 2011. The record is -11.1 C (12.0 F) in 1999, marked on the chart; the median year is -6.1 C (21.0 F).

Coldest night (TNn) at La Ascencion by year
Year	Coldest night (TNn)
1980	0.0 C (32.0 F)
1981	-5.0 C (23.0 F)
1982	-6.1 C (21.0 F)
1983	0.0 C (32.0 F)
1984	0.0 C (32.0 F)
1985	-4.4 C (24.1 F)
1986	0.0 C (32.0 F)
1997	-10.0 C (14.0 F)
1998	-10.0 C (14.0 F)
1999	-11.1 C (12.0 F)
2000	-10.0 C (14.0 F)
2001	-10.0 C (14.0 F)
2002	-10.0 C (14.0 F)
2003	-7.2 C (19.0 F)
2004	-7.2 C (19.0 F)
2005	-5.0 C (23.0 F)
2006	-5.0 C (23.0 F)
2008	-6.1 C (21.0 F)
2009	-4.4 C (24.1 F)
2010	-6.1 C (21.0 F)
2011	-7.2 C (19.0 F)

Wettest day (Rx1day)

The wettest day of the year at La Ascencion, 1980 to 2011. The record is 129.8 mm (5.1 in) in 2010, marked on the chart; the median year is 39.9 mm (1.6 in).

Wettest day (Rx1day) at La Ascencion by year
Year	Wettest day (Rx1day)
1980	31.8 mm (1.3 in)
1981	43.7 mm (1.7 in)
1982	51.8 mm (2.0 in)
1983	41.9 mm (1.6 in)
1984	27.9 mm (1.1 in)
1985	43.9 mm (1.7 in)
1986	14.0 mm (0.6 in)
1997	39.9 mm (1.6 in)
1998	29.5 mm (1.2 in)
1999	15.0 mm (0.6 in)
2000	93.0 mm (3.7 in)
2001	33.8 mm (1.3 in)
2002	34.8 mm (1.4 in)
2003	63.8 mm (2.5 in)
2004	36.8 mm (1.4 in)
2005	35.8 mm (1.4 in)
2006	45.0 mm (1.8 in)
2008	57.9 mm (2.3 in)
2009	24.9 mm (1.0 in)
2010	129.8 mm (5.1 in)
2011	79.8 mm (3.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at La Ascencion, 1980 to 2011. The record is 230.4 mm (9.1 in) in 2010, marked on the chart; the median year is 70.3 mm (2.8 in).

Wettest five days (Rx5day) at La Ascencion by year
Year	Wettest five days (Rx5day)
1980	51.4 mm (2.0 in)
1981	64.8 mm (2.6 in)
1982	95.3 mm (3.8 in)
1983	79.2 mm (3.1 in)
1984	35.8 mm (1.4 in)
1985	85.8 mm (3.4 in)
1986	27.7 mm (1.1 in)
1997	86.2 mm (3.4 in)
1998	60.0 mm (2.4 in)
1999	18.1 mm (0.7 in)
2000	140.7 mm (5.5 in)
2001	93.0 mm (3.7 in)
2002	65.4 mm (2.6 in)
2003	79.9 mm (3.1 in)
2004	50.0 mm (2.0 in)
2005	70.3 mm (2.8 in)
2006	49.8 mm (2.0 in)
2008	85.1 mm (3.4 in)
2009	67.3 mm (2.6 in)
2010	230.4 mm (9.1 in)
2011	157.5 mm (6.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at La Ascencion, 1980 to 2011. The record is 118 days in 2011, marked on the chart; the median year is 54 days.

Longest dry spell (CDD) at La Ascencion by year
Year	Longest dry spell (CDD)
1980	40 days
1981	31 days
1982	54 days
1983	56 days
1984	22 days
1985	65 days
1986	62 days
1997	50 days
1998	48 days
1999	56 days
2000	67 days
2001	45 days
2002	49 days
2003	61 days
2004	78 days
2005	40 days
2006	49 days
2008	65 days
2009	35 days
2010	96 days
2011	118 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.

Download the Data

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