Observatorio Uaem Weather Records (MXN00015367)

Record envelope, standing records and threshold days for Observatorio Uaem (MXN00015367), Mexico, with 65 years of record.

Key Facts for Observatorio Uaem

Observatorio Uaem (MXN00015367) is a weather station in Mexico at 19.28 latitude and -99.65 longitude, 2,668 m (8,753 ft) above sea level.
The station reports from 1946 to 2010, 65 years of record.
1,464 records set at Observatorio Uaem still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 19.28 latitude, -99.65 longitude.
Elevation: 2,668 m (8,753 ft).
Period of record: 1946 to 2010, 65 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 Observatorio Uaem. 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 Observatorio Uaem, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	25.6 C (78.1 F)	-2.2 C (28.0 F)	n/a	n/a
Feb	26.7 C (80.1 F)	-4.4 C (24.1 F)	n/a	n/a
Mar	27.8 C (82.0 F)	-1.1 C (30.0 F)	n/a	n/a
Apr	30.6 C (87.1 F)	2.2 C (36.0 F)	n/a	n/a
May	30.6 C (87.1 F)	2.8 C (37.0 F)	n/a	n/a
Jun	31.7 C (89.1 F)	3.3 C (37.9 F)	n/a	n/a
Jul	30.0 C (86.0 F)	5.6 C (42.1 F)	n/a	n/a
Aug	25.6 C (78.1 F)	5.6 C (42.1 F)	n/a	n/a
Sep	27.8 C (82.0 F)	0.6 C (33.1 F)	n/a	n/a
Oct	26.7 C (80.1 F)	0.0 C (32.0 F)	n/a	n/a
Nov	25.0 C (77.0 F)	-1.1 C (30.0 F)	n/a	n/a
Dec	25.0 C (77.0 F)	-1.7 C (28.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Observatorio Uaem still stand. 2003 holds the most, with 163.

Standing records at Observatorio Uaem by the year they were set
Year set	Standing records
1946	37
1947	50
1948	35
1949	40
1950	43
1951	32
1952	54
1953	47
1954	13
1993	21
1994	29
1995	37
1996	20
1997	46
1998	63
1999	25
2000	23
2001	115
2002	123
2003	163
2004	76
2005	154
2006	48
2007	53
2008	32
2009	51
2010	34

Wettest Day of Each Month

Aug: 75.4 mm (3.0 in)

The wettest day on record for each calendar month at Observatorio Uaem. The most was 75.4 mm (3.0 in) on 12 August 1947.

Record daily precipitation for each month at Observatorio Uaem
Month	Record daily precipitation (mm)	Date
Jan	30.0 mm (1.2 in)	17 January 2004
Feb	48.5 mm (1.9 in)	3 February 2010
Mar	49.8 mm (2.0 in)	30 March 1953
Apr	29.0 mm (1.1 in)	24 April 1999
May	40.4 mm (1.6 in)	6 May 2004
Jun	67.8 mm (2.7 in)	30 June 2005
Jul	64.8 mm (2.6 in)	3 July 2004
Aug	75.4 mm (3.0 in)	12 August 1947
Sep	64.8 mm (2.6 in)	14 September 2004
Oct	56.4 mm (2.2 in)	6 October 2003
Nov	43.2 mm (1.7 in)	6 November 2002
Dec	35.3 mm (1.4 in)	21 December 1947

Period of Record Coverage

1946 to 2010

27 years of record at Observatorio Uaem, 1946 to 2010. 5 years have data for under 90 percent of days and are left out of rankings: 1954, 1993, 1994, 2009, 2010.

Days with data per year at Observatorio Uaem
Year	Days with data	Share of year	Complete
1946	363	99%	Yes
1947	364	100%	Yes
1948	365	100%	Yes
1949	363	99%	Yes
1950	365	100%	Yes
1951	363	99%	Yes
1952	365	100%	Yes
1953	365	100%	Yes
1954	119	33%	No
1993	325	89%	No
1994	324	89%	No
1995	346	95%	Yes
1996	366	100%	Yes
1997	365	100%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	366	100%	Yes
2001	364	100%	Yes
2002	364	100%	Yes
2003	365	100%	Yes
2004	365	100%	Yes
2005	364	100%	Yes
2006	337	92%	Yes
2007	353	97%	Yes
2008	343	94%	Yes
2009	313	86%	No
2010	79	22%	No

Latest Records

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

Climate Trend

24 complete years, 1946 to 2008

One stripe for each of 24 complete years at Observatorio Uaem, 1946 to 2008. 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 1950, at 12.3 C (54.2 F), and the warmest was 2005, at 15.0 C (58.9 F). The strongest colour marks a difference of 1.5 C (2.7 F).

Annual mean temperature at Observatorio Uaem as warming stripes, 1946 to 2008
Year	Annual mean temperature	Difference from the station mean
1946	12.8 C	-0.69 C
1947	12.7 C	-0.80 C
1948	13.0 C	-0.51 C
1949	12.7 C	-0.77 C
1950	12.3 C	-1.17 C
1951	12.8 C	-0.70 C
1952	12.5 C	-1.02 C
1953	12.6 C	-0.90 C
1993	13.2 C	-0.29 C
1994	13.5 C	+0.01 C
1995	13.7 C	+0.18 C
1996	13.4 C	-0.10 C
1997	13.4 C	-0.12 C
1998	14.3 C	+0.82 C
1999	13.4 C	-0.14 C
2000	13.6 C	+0.05 C
2001	14.2 C	+0.70 C
2002	14.8 C	+1.24 C
2003	14.9 C	+1.39 C
2004	14.5 C	+1.00 C
2005	15.0 C	+1.45 C
2006	13.7 C	+0.17 C
2007	13.6 C	+0.06 C
2008	13.6 C	+0.10 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

1946 to 2010

Yearly extremes at Observatorio Uaem: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	31.7 C (89.1 F)	2005	25.0 C (77.0 F)	27
Coldest night (TNn)	-4.4 C (24.1 F)	1993	0.0 C (32.0 F)	27
Wettest day (Rx1day)	75.4 mm (3.0 in)	1947	42.2 mm (1.7 in)	27
Wettest five days (Rx5day)	191.5 mm (7.5 in)	2005	86.5 mm (3.4 in)	27
Longest dry spell (CDD)	129 days	1998	48 days	27

Hottest day (TXx)

The hottest day of the year at Observatorio Uaem, 1946 to 2010. The record is 31.7 C (89.1 F) in 2005, marked on the chart; the median year is 25.0 C (77.0 F).

Hottest day (TXx) at Observatorio Uaem by year
Year	Hottest day (TXx)
1946	23.3 C (73.9 F)
1947	24.4 C (75.9 F)
1948	25.0 C (77.0 F)
1949	25.0 C (77.0 F)
1950	25.0 C (77.0 F)
1951	23.9 C (75.0 F)
1952	27.8 C (82.0 F)
1953	25.0 C (77.0 F)
1954	23.9 C (75.0 F)
1993	26.7 C (80.1 F)
1994	24.4 C (75.9 F)
1995	25.0 C (77.0 F)
1996	24.4 C (75.9 F)
1997	24.4 C (75.9 F)
1998	27.8 C (82.0 F)
1999	25.6 C (78.1 F)
2000	25.6 C (78.1 F)
2001	30.0 C (86.0 F)
2002	28.9 C (84.0 F)
2003	30.6 C (87.1 F)
2004	27.8 C (82.0 F)
2005	31.7 C (89.1 F)
2006	25.0 C (77.0 F)
2007	23.9 C (75.0 F)
2008	24.4 C (75.9 F)
2009	27.2 C (81.0 F)
2010	23.3 C (73.9 F)

Coldest night (TNn)

The coldest night of the year at Observatorio Uaem, 1946 to 2010. The record is -4.4 C (24.1 F) in 1993, marked on the chart; the median year is 0.0 C (32.0 F).

Coldest night (TNn) at Observatorio Uaem by year
Year	Coldest night (TNn)
1946	0.0 C (32.0 F)
1947	0.0 C (32.0 F)
1948	0.0 C (32.0 F)
1949	-0.6 C (30.9 F)
1950	-1.7 C (28.9 F)
1951	-0.6 C (30.9 F)
1952	0.0 C (32.0 F)
1953	-1.1 C (30.0 F)
1954	1.1 C (34.0 F)
1993	-4.4 C (24.1 F)
1994	0.6 C (33.1 F)
1995	0.0 C (32.0 F)
1996	0.0 C (32.0 F)
1997	-2.2 C (28.0 F)
1998	0.0 C (32.0 F)
1999	0.0 C (32.0 F)
2000	0.6 C (33.1 F)
2001	0.0 C (32.0 F)
2002	-1.1 C (30.0 F)
2003	-1.1 C (30.0 F)
2004	-1.1 C (30.0 F)
2005	-1.1 C (30.0 F)
2006	0.0 C (32.0 F)
2007	0.0 C (32.0 F)
2008	0.0 C (32.0 F)
2009	1.7 C (35.1 F)
2010	0.6 C (33.1 F)

Wettest day (Rx1day)

The wettest day of the year at Observatorio Uaem, 1946 to 2010. The record is 75.4 mm (3.0 in) in 1947, marked on the chart; the median year is 42.2 mm (1.7 in).

Wettest day (Rx1day) at Observatorio Uaem by year
Year	Wettest day (Rx1day)
1946	25.9 mm (1.0 in)
1947	75.4 mm (3.0 in)
1948	45.7 mm (1.8 in)
1949	29.7 mm (1.2 in)
1950	29.5 mm (1.2 in)
1951	27.4 mm (1.1 in)
1952	41.7 mm (1.6 in)
1953	49.8 mm (2.0 in)
1954	9.4 mm (0.37 in)
1993	43.4 mm (1.7 in)
1994	62.2 mm (2.4 in)
1995	44.5 mm (1.8 in)
1996	32.3 mm (1.3 in)
1997	42.7 mm (1.7 in)
1998	47.8 mm (1.9 in)
1999	29.0 mm (1.1 in)
2000	36.3 mm (1.4 in)
2001	42.2 mm (1.7 in)
2002	56.4 mm (2.2 in)
2003	60.2 mm (2.4 in)
2004	64.8 mm (2.6 in)
2005	67.8 mm (2.7 in)
2006	39.1 mm (1.5 in)
2007	35.6 mm (1.4 in)
2008	41.9 mm (1.6 in)
2009	39.6 mm (1.6 in)
2010	48.5 mm (1.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Observatorio Uaem, 1946 to 2010. The record is 191.5 mm (7.5 in) in 2005, marked on the chart; the median year is 86.5 mm (3.4 in).

Wettest five days (Rx5day) at Observatorio Uaem by year
Year	Wettest five days (Rx5day)
1946	51.5 mm (2.0 in)
1947	107.4 mm (4.2 in)
1948	93.8 mm (3.7 in)
1949	49.8 mm (2.0 in)
1950	60.0 mm (2.4 in)
1951	58.4 mm (2.3 in)
1952	68.1 mm (2.7 in)
1953	66.3 mm (2.6 in)
1954	20.8 mm (0.8 in)
1993	90.1 mm (3.5 in)
1994	99.7 mm (3.9 in)
1995	102.7 mm (4.0 in)
1996	83.4 mm (3.3 in)
1997	53.8 mm (2.1 in)
1998	128.3 mm (5.1 in)
1999	80.8 mm (3.2 in)
2000	75.2 mm (3.0 in)
2001	101.2 mm (4.0 in)
2002	161.8 mm (6.4 in)
2003	158.0 mm (6.2 in)
2004	162.1 mm (6.4 in)
2005	191.5 mm (7.5 in)
2006	86.5 mm (3.4 in)
2007	64.1 mm (2.5 in)
2008	73.6 mm (2.9 in)
2009	105.7 mm (4.2 in)
2010	86.6 mm (3.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Observatorio Uaem, 1946 to 2010. The record is 129 days in 1998, marked on the chart; the median year is 48 days.

Longest dry spell (CDD) at Observatorio Uaem by year
Year	Longest dry spell (CDD)
1946	64 days
1947	58 days
1948	71 days
1949	69 days
1950	40 days
1951	78 days
1952	44 days
1953	71 days
1954	34 days
1993	51 days
1994	29 days
1995	31 days
1996	65 days
1997	47 days
1998	129 days
1999	43 days
2000	94 days
2001	46 days
2002	45 days
2003	89 days
2004	48 days
2005	39 days
2006	46 days
2007	29 days
2008	59 days
2009	61 days
2010	15 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 Observatorio Uaem standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Observatorio Uaem 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).