Usmajac Weather Records (MXN00014368)

Record envelope, standing records and threshold days for Usmajac (MXN00014368), Mexico, with 31 years of record.

Key Facts for Usmajac

Usmajac (MXN00014368) is a weather station in Mexico at 19.87 latitude and -103.53 longitude, 1,360 m (4,461 ft) above sea level.
The station reports from 1982 to 2012, 31 years of record.
1,464 records set at Usmajac still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 19.87 latitude, -103.53 longitude.
Elevation: 1,360 m (4,461 ft).
Period of record: 1982 to 2012, 31 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 Usmajac. 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 Usmajac, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	34.4 C (93.9 F)	0.0 C (32.0 F)	n/a	n/a
Feb	35.6 C (96.1 F)	1.1 C (34.0 F)	n/a	n/a
Mar	35.6 C (96.1 F)	1.1 C (34.0 F)	n/a	n/a
Apr	40.6 C (105.1 F)	5.6 C (42.1 F)	n/a	n/a
May	41.7 C (107.1 F)	5.6 C (42.1 F)	n/a	n/a
Jun	38.3 C (100.9 F)	10.6 C (51.1 F)	n/a	n/a
Jul	34.4 C (93.9 F)	10.0 C (50.0 F)	n/a	n/a
Aug	35.0 C (95.0 F)	10.6 C (51.1 F)	n/a	n/a
Sep	32.8 C (91.0 F)	10.0 C (50.0 F)	n/a	n/a
Oct	32.8 C (91.0 F)	5.0 C (41.0 F)	n/a	n/a
Nov	35.0 C (95.0 F)	2.8 C (37.0 F)	n/a	n/a
Dec	32.8 C (91.0 F)	0.0 C (32.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Usmajac still stand. 1982 holds the most, with 216.

Wettest Day of Each Month

Jul: 70.4 mm (2.8 in)

The wettest day on record for each calendar month at Usmajac. The most was 70.4 mm (2.8 in) on 24 July 1987.

Record daily precipitation for each month at Usmajac
Month	Record daily precipitation (mm)	Date
Jan	16.8 mm (0.7 in)	14 January 2011
Feb	14.0 mm (0.6 in)	26 February 1987
Mar	0.0 mm (0.00 in)	1 March 1982
Apr	10.9 mm (0.4 in)	20 April 1982
May	24.9 mm (1.0 in)	21 May 2009
Jun	56.4 mm (2.2 in)	8 June 2007
Jul	70.4 mm (2.8 in)	24 July 1987
Aug	43.2 mm (1.7 in)	10 August 2009
Sep	39.9 mm (1.6 in)	13 September 2006
Oct	39.1 mm (1.5 in)	14 October 2006
Nov	13.5 mm (0.5 in)	25 November 1982
Dec	22.4 mm (0.9 in)	12 December 1982

Period of Record Coverage

1982 to 2012

13 years of record at Usmajac, 1982 to 2012. 8 years have data for under 90 percent of days and are left out of rankings: 1983, 1984, 1987, 1988, 2005, 2008, 2011, 2012.

Days with data per year at Usmajac
Year	Days with data	Share of year	Complete
1982	348	95%	Yes
1983	121	33%	No
1984	31	8%	No
1986	365	100%	Yes
1987	223	61%	No
1988	60	16%	No
2005	71	19%	No
2006	365	100%	Yes
2007	365	100%	Yes
2008	329	90%	No
2009	360	99%	Yes
2011	90	25%	No
2012	31	8%	No

Latest Records

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

Extremes by Year

1982 to 2012

Yearly extremes at Usmajac: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	41.7 C (107.1 F)	2009	35.6 C (96.1 F)	13
Coldest night (TNn)	0.0 C (32.0 F)	1983	1.7 C (35.1 F)	13
Wettest day (Rx1day)	70.4 mm (2.8 in)	1987	31.0 mm (1.2 in)	13
Wettest five days (Rx5day)	132.4 mm (5.2 in)	1987	68.6 mm (2.7 in)	13
Longest dry spell (CDD)	121 days	2009	71 days	13

Hottest day (TXx)

The hottest day of the year at Usmajac, 1982 to 2012. The record is 41.7 C (107.1 F) in 2009, marked on the chart; the median year is 35.6 C (96.1 F).

Hottest day (TXx) at Usmajac by year
Year	Hottest day (TXx)
1982	37.2 C (99.0 F)
1983	30.0 C (86.0 F)
1984	30.0 C (86.0 F)
1986	38.9 C (102.0 F)
1987	35.6 C (96.1 F)
1988	32.8 C (91.0 F)
2005	32.8 C (91.0 F)
2006	38.9 C (102.0 F)
2007	37.8 C (100.0 F)
2008	39.4 C (102.9 F)
2009	41.7 C (107.1 F)
2011	35.6 C (96.1 F)
2012	33.3 C (91.9 F)

Coldest night (TNn)

The coldest night of the year at Usmajac, 1982 to 2012. The record is 0.0 C (32.0 F) in 1983, marked on the chart; the median year is 1.7 C (35.1 F).

Coldest night (TNn) at Usmajac by year
Year	Coldest night (TNn)
1982	3.9 C (39.0 F)
1983	0.0 C (32.0 F)
1984	7.8 C (46.0 F)
1986	2.8 C (37.0 F)
1987	1.7 C (35.1 F)
1988	0.6 C (33.1 F)
2005	3.9 C (39.0 F)
2006	0.6 C (33.1 F)
2007	2.8 C (37.0 F)
2008	0.0 C (32.0 F)
2009	1.1 C (34.0 F)
2011	1.1 C (34.0 F)
2012	2.8 C (37.0 F)

Wettest day (Rx1day)

The wettest day of the year at Usmajac, 1982 to 2012. The record is 70.4 mm (2.8 in) in 1987, marked on the chart; the median year is 31.0 mm (1.2 in).

Wettest day (Rx1day) at Usmajac by year
Year	Wettest day (Rx1day)
1982	51.8 mm (2.0 in)
1983	4.8 mm (0.19 in)
1984	6.4 mm (0.25 in)
1986	40.9 mm (1.6 in)
1987	70.4 mm (2.8 in)
1988	0.0 mm (0.00 in)
2005	0.3 mm (0.01 in)
2006	39.9 mm (1.6 in)
2007	56.4 mm (2.2 in)
2008	31.0 mm (1.2 in)
2009	43.2 mm (1.7 in)
2011	16.8 mm (0.7 in)
2012	0.3 mm (0.01 in)

Wettest five days (Rx5day)

The wettest five days of the year at Usmajac, 1982 to 2012. The record is 132.4 mm (5.2 in) in 1987, marked on the chart; the median year is 68.6 mm (2.7 in).

Wettest five days (Rx5day) at Usmajac by year
Year	Wettest five days (Rx5day)
1982	78.9 mm (3.1 in)
1983	8.9 mm (0.35 in)
1984	12.2 mm (0.5 in)
1986	120.2 mm (4.7 in)
1987	132.4 mm (5.2 in)
1988	0.0 mm (0.00 in)
2005	0.3 mm (0.01 in)
2006	89.4 mm (3.5 in)
2007	85.1 mm (3.4 in)
2008	80.0 mm (3.1 in)
2009	68.6 mm (2.7 in)
2011	16.8 mm (0.7 in)
2012	0.3 mm (0.01 in)

Longest dry spell (CDD)

The longest dry spell of the year at Usmajac, 1982 to 2012. The record is 121 days in 2009, marked on the chart; the median year is 71 days.

Longest dry spell (CDD) at Usmajac by year
Year	Longest dry spell (CDD)
1982	50 days
1983	72 days
1984	14 days
1986	69 days
1987	44 days
1988	60 days
2005	71 days
2006	80 days
2007	111 days
2008	79 days
2009	121 days
2011	76 days
2012	31 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 Usmajac standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Usmajac 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 2026-10-16 (16 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).