Llano Grande Weather Records (MXN00014091)

Record envelope, standing records and threshold days for Llano Grande (MXN00014091), Mexico, with 31 years of record.

Key Facts for Llano Grande

Llano Grande (MXN00014091) is a weather station in Mexico at 20.03 latitude and -104.87 longitude, 300 m (984 ft) above sea level.
The station reports from 1957 to 1987, 31 years of record.
1,464 records set at Llano Grande still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 20.03 latitude, -104.87 longitude.
Elevation: 300 m (984 ft).
Period of record: 1957 to 1987, 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 Llano Grande. 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 Llano Grande, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	37.8 C (100.0 F)	7.2 C (45.0 F)	n/a	n/a
Feb	38.9 C (102.0 F)	6.7 C (44.1 F)	n/a	n/a
Mar	41.1 C (106.0 F)	7.8 C (46.0 F)	n/a	n/a
Apr	40.6 C (105.1 F)	9.4 C (48.9 F)	n/a	n/a
May	40.0 C (104.0 F)	8.9 C (48.0 F)	n/a	n/a
Jun	40.0 C (104.0 F)	8.9 C (48.0 F)	n/a	n/a
Jul	38.9 C (102.0 F)	13.9 C (57.0 F)	n/a	n/a
Aug	41.1 C (106.0 F)	15.0 C (59.0 F)	n/a	n/a
Sep	38.9 C (102.0 F)	15.0 C (59.0 F)	n/a	n/a
Oct	35.0 C (95.0 F)	13.3 C (55.9 F)	n/a	n/a
Nov	35.0 C (95.0 F)	8.3 C (46.9 F)	n/a	n/a
Dec	35.0 C (95.0 F)	9.4 C (48.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Llano Grande still stand. 1982 holds the most, with 220.

Wettest Day of Each Month

Sep: 344.4 mm (13.6 in)

The wettest day on record for each calendar month at Llano Grande. The most was 344.4 mm (13.6 in) on 1 September 1971.

Record daily precipitation for each month at Llano Grande
Month	Record daily precipitation (mm)	Date
Jan	43.9 mm (1.7 in)	11 January 1967
Feb	40.9 mm (1.6 in)	11 February 1978
Mar	89.9 mm (3.5 in)	3 March 1968
Apr	85.3 mm (3.4 in)	17 April 1959
May	44.5 mm (1.8 in)	24 May 1963
Jun	99.8 mm (3.9 in)	8 June 1958
Jul	121.9 mm (4.8 in)	2 July 1977
Aug	114.3 mm (4.5 in)	21 August 1960
Sep	344.4 mm (13.6 in)	1 September 1971
Oct	89.9 mm (3.5 in)	12 October 1971
Nov	60.2 mm (2.4 in)	2 November 1958
Dec	75.9 mm (3.0 in)	16 December 1965

Period of Record Coverage

1971 to 1987

16 years of record at Llano Grande, 1971 to 1987. 12 years have data for under 90 percent of days and are left out of rankings: 1971, 1974, 1975, 1976, 1979, 1980, 1981, 1982 and others.

Days with data per year at Llano Grande
Year	Days with data	Share of year	Complete
1971	212	58%	No
1972	366	100%	Yes
1973	365	100%	Yes
1974	59	16%	No
1975	120	33%	No
1976	254	69%	No
1977	365	100%	Yes
1978	365	100%	Yes
1979	198	54%	No
1980	62	17%	No
1981	160	44%	No
1982	273	75%	No
1983	149	41%	No
1984	172	47%	No
1986	183	50%	No
1987	25	7%	No

Latest Records

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

Extremes by Year

1957 to 1987

Yearly extremes at Llano Grande: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	41.1 C (106.0 F)	1982	38.9 C (102.0 F)	16
Coldest night (TNn)	6.7 C (44.1 F)	1978	8.3 C (46.9 F)	16
Wettest day (Rx1day)	344.4 mm (13.6 in)	1971	86.4 mm (3.4 in)	31
Wettest five days (Rx5day)	402.8 mm (15.9 in)	1971	183.4 mm (7.2 in)	31
Longest dry spell (CDD)	178 days	1969	89 days	31

Hottest day (TXx)

The hottest day of the year at Llano Grande, 1957 to 1987. The record is 41.1 C (106.0 F) in 1982, marked on the chart; the median year is 38.9 C (102.0 F).

Hottest day (TXx) at Llano Grande by year
Year	Hottest day (TXx)
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	38.9 C (102.0 F)
1972	38.9 C (102.0 F)
1973	38.9 C (102.0 F)
1974	36.7 C (98.1 F)
1975	37.8 C (100.0 F)
1976	38.3 C (100.9 F)
1977	37.8 C (100.0 F)
1978	38.3 C (100.9 F)
1979	40.0 C (104.0 F)
1980	40.0 C (104.0 F)
1981	40.0 C (104.0 F)
1982	41.1 C (106.0 F)
1983	40.0 C (104.0 F)
1984	40.0 C (104.0 F)
1985	n/a
1986	38.3 C (100.9 F)
1987	37.8 C (100.0 F)

Coldest night (TNn)

The coldest night of the year at Llano Grande, 1957 to 1987. The record is 6.7 C (44.1 F) in 1978, marked on the chart; the median year is 8.3 C (46.9 F).

Coldest night (TNn) at Llano Grande by year
Year	Coldest night (TNn)
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	10.6 C (51.1 F)
1972	7.8 C (46.0 F)
1973	8.3 C (46.9 F)
1974	8.9 C (48.0 F)
1975	10.0 C (50.0 F)
1976	10.6 C (51.1 F)
1977	10.0 C (50.0 F)
1978	6.7 C (44.1 F)
1979	8.3 C (46.9 F)
1980	7.2 C (45.0 F)
1981	7.2 C (45.0 F)
1982	7.8 C (46.0 F)
1983	8.3 C (46.9 F)
1984	12.2 C (54.0 F)
1985	n/a
1986	7.8 C (46.0 F)
1987	20.0 C (68.0 F)

Wettest day (Rx1day)

The wettest day of the year at Llano Grande, 1957 to 1987. The record is 344.4 mm (13.6 in) in 1971, marked on the chart; the median year is 86.4 mm (3.4 in).

Wettest day (Rx1day) at Llano Grande by year
Year	Wettest day (Rx1day)
1957	89.9 mm (3.5 in)
1958	104.1 mm (4.1 in)
1959	89.9 mm (3.5 in)
1960	114.3 mm (4.5 in)
1961	86.4 mm (3.4 in)
1962	81.8 mm (3.2 in)
1963	88.9 mm (3.5 in)
1964	67.8 mm (2.7 in)
1965	81.3 mm (3.2 in)
1966	80.8 mm (3.2 in)
1967	89.9 mm (3.5 in)
1968	89.9 mm (3.5 in)
1969	79.8 mm (3.1 in)
1970	122.9 mm (4.8 in)
1971	344.4 mm (13.6 in)
1972	82.8 mm (3.3 in)
1973	99.8 mm (3.9 in)
1974	0.3 mm (0.01 in)
1975	3.3 mm (0.13 in)
1976	93.7 mm (3.7 in)
1977	121.9 mm (4.8 in)
1978	100.1 mm (3.9 in)
1979	101.3 mm (4.0 in)
1980	0.0 mm (0.00 in)
1981	51.8 mm (2.0 in)
1982	104.9 mm (4.1 in)
1983	45.0 mm (1.8 in)
1984	59.9 mm (2.4 in)
1985	0.0 mm (0.00 in)
1986	71.4 mm (2.8 in)
1987	64.3 mm (2.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Llano Grande, 1957 to 1987. The record is 402.8 mm (15.9 in) in 1971, marked on the chart; the median year is 183.4 mm (7.2 in).

Wettest five days (Rx5day) at Llano Grande by year
Year	Wettest five days (Rx5day)
1957	264.2 mm (10.4 in)
1958	203.2 mm (8.0 in)
1959	197.7 mm (7.8 in)
1960	208.0 mm (8.2 in)
1961	197.6 mm (7.8 in)
1962	150.4 mm (5.9 in)
1963	228.0 mm (9.0 in)
1964	170.2 mm (6.7 in)
1965	139.8 mm (5.5 in)
1966	183.4 mm (7.2 in)
1967	224.6 mm (8.8 in)
1968	177.8 mm (7.0 in)
1969	209.6 mm (8.3 in)
1970	373.1 mm (14.7 in)
1971	402.8 mm (15.9 in)
1972	183.7 mm (7.2 in)
1973	228.3 mm (9.0 in)
1974	0.3 mm (0.01 in)
1975	4.6 mm (0.18 in)
1976	201.2 mm (7.9 in)
1977	227.0 mm (8.9 in)
1978	173.0 mm (6.8 in)
1979	220.3 mm (8.7 in)
1980	0.0 mm (0.00 in)
1981	54.6 mm (2.1 in)
1982	179.6 mm (7.1 in)
1983	105.8 mm (4.2 in)
1984	137.7 mm (5.4 in)
1985	0.0 mm (0.00 in)
1986	143.1 mm (5.6 in)
1987	99.4 mm (3.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Llano Grande, 1957 to 1987. The record is 178 days in 1969, marked on the chart; the median year is 89 days.

Longest dry spell (CDD) at Llano Grande by year
Year	Longest dry spell (CDD)
1957	73 days
1958	147 days
1959	97 days
1960	150 days
1961	136 days
1962	128 days
1963	142 days
1964	151 days
1965	67 days
1966	68 days
1967	122 days
1968	108 days
1969	178 days
1970	115 days
1971	61 days
1972	146 days
1973	62 days
1974	59 days
1975	101 days
1976	47 days
1977	108 days
1978	81 days
1979	64 days
1980	31 days
1981	64 days
1982	171 days
1983	57 days
1984	47 days
1985	28 days
1986	89 days
1987	5 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 Llano Grande standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Llano Grande 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 2026-10-14 (14 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).