Las Prietas Weather Records (MXN00030091)

Record envelope, standing records and threshold days for Las Prietas (MXN00030091), Mexico, with 35 years of record.

Key Facts for Las Prietas

Las Prietas (MXN00030091) is a weather station in Mexico at 18.50 latitude and -96.40 longitude, 26 m (85 ft) above sea level.
The station reports from 1948 to 1982, 35 years of record.
1,464 records set at Las Prietas still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Las Prietas set a daily record high maximum temperature of 36.7 C (98.1 F) on 9 February 1982.

About the Station

Location: Mexico, 18.50 latitude, -96.40 longitude.
Elevation: 26 m (85 ft).
Period of record: 1948 to 1982, 35 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 Las Prietas. 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 Las Prietas, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	36.7 C (98.1 F)	3.9 C (39.0 F)	n/a	n/a
Feb	42.2 C (108.0 F)	1.7 C (35.1 F)	n/a	n/a
Mar	43.3 C (109.9 F)	8.3 C (46.9 F)	n/a	n/a
Apr	44.4 C (111.9 F)	10.0 C (50.0 F)	n/a	n/a
May	45.0 C (113.0 F)	12.8 C (55.0 F)	n/a	n/a
Jun	41.1 C (106.0 F)	12.2 C (54.0 F)	n/a	n/a
Jul	39.4 C (102.9 F)	13.9 C (57.0 F)	n/a	n/a
Aug	38.9 C (102.0 F)	17.8 C (64.0 F)	n/a	n/a
Sep	37.8 C (100.0 F)	13.3 C (55.9 F)	n/a	n/a
Oct	37.8 C (100.0 F)	10.0 C (50.0 F)	n/a	n/a
Nov	37.8 C (100.0 F)	5.0 C (41.0 F)	n/a	n/a
Dec	35.6 C (96.1 F)	5.0 C (41.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Las Prietas still stand. 1954 holds the most, with 122.

Standing records at Las Prietas by the year they were set
Year set	Standing records
1950	47
1951	45
1952	51
1953	43
1954	122
1955	92
1956	55
1957	60
1958	45
1959	48
1960	57
1961	109
1962	53
1963	48
1964	35
1965	47
1966	38
1967	36
1968	24
1969	39
1970	39
1971	39
1972	23
1973	38
1974	47
1975	17
1976	30
1977	57
1978	33
1979	26
1980	17
1981	3
1982	1

Wettest Day of Each Month

Sep: 172.0 mm (6.8 in)

The wettest day on record for each calendar month at Las Prietas. The most was 172.0 mm (6.8 in) on 20 September 1974.

Record daily precipitation for each month at Las Prietas
Month	Record daily precipitation (mm)	Date
Jan	55.6 mm (2.2 in)	4 January 1965
Feb	82.8 mm (3.3 in)	22 February 1957
Mar	128.8 mm (5.1 in)	12 March 1974
Apr	120.7 mm (4.8 in)	18 April 1966
May	78.0 mm (3.1 in)	31 May 1964
Jun	160.8 mm (6.3 in)	24 June 1976
Jul	112.8 mm (4.4 in)	18 July 1950
Aug	111.0 mm (4.4 in)	20 August 1969
Sep	172.0 mm (6.8 in)	20 September 1974
Oct	106.9 mm (4.2 in)	31 October 1959
Nov	50.0 mm (2.0 in)	5 November 1981
Dec	71.9 mm (2.8 in)	28 December 1965

Period of Record Coverage

1950 to 1982

33 years of record at Las Prietas, 1950 to 1982. 6 years have data for under 90 percent of days and are left out of rankings: 1950, 1951, 1965, 1980, 1981, 1982.

Days with data per year at Las Prietas
Year	Days with data	Share of year	Complete
1950	290	79%	No
1951	303	83%	No
1952	365	100%	Yes
1953	364	100%	Yes
1954	365	100%	Yes
1955	364	100%	Yes
1956	365	100%	Yes
1957	364	100%	Yes
1958	364	100%	Yes
1959	365	100%	Yes
1960	365	100%	Yes
1961	365	100%	Yes
1962	364	100%	Yes
1963	364	100%	Yes
1964	366	100%	Yes
1965	301	82%	No
1966	365	100%	Yes
1967	364	100%	Yes
1968	364	99%	Yes
1969	358	98%	Yes
1970	362	99%	Yes
1971	365	100%	Yes
1972	365	100%	Yes
1973	363	99%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	364	100%	Yes
1979	364	100%	Yes
1980	152	42%	No
1981	29	8%	No
1982	28	8%	No

Latest Records

Latest records at Las Prietas
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 February 1982	Las Prietas, MX	daily high max	36.7 C (98.1 F)	2.3 C (4.1 F)	26 years	15 of 100 (Routine)
30 November 1981	Las Prietas, MX	daily high min	22.8 C (73.0 F)	1.1 C (2.0 F)	16 years	11 of 100 (Routine)
27 November 1981	Las Prietas, MX	daily high max (Tie)	33.9 C (93.0 F)	tie	20 years	2 of 100 (Routine)
26 November 1981	Las Prietas, MX	daily high max (Tie)	33.9 C (93.0 F)	tie	20 years	2 of 100 (Routine)
10 November 1981	Las Prietas, MX	daily low max	20.6 C (69.1 F)	1.1 C (2.0 F)	4 years	7 of 100 (Routine)
10 November 1981	Las Prietas, MX	daily rain	10.4 mm (0.4 in)	1.0 mm (0.04 in)	8 years	6 of 100 (Routine)
5 November 1981	Las Prietas, MX	monthly rain	50.0 mm (2.0 in)	0.5 mm (0.02 in)	9 years	15 of 100 (Routine)
3 November 1981	Las Prietas, MX	daily low max	20.6 C (69.1 F)	0.5 C (0.9 F)	11 years	7 of 100 (Routine)
31 May 1980	Las Prietas, MX	daily high min (Tie)	25.0 C (77.0 F)	tie	16 years	1 of 100 (Routine)
30 May 1980	Las Prietas, MX	daily high min (Tie)	25.0 C (77.0 F)	tie	18 years	2 of 100 (Routine)
25 May 1980	Las Prietas, MX	daily high max (Tie)	40.0 C (104.0 F)	tie	23 years	2 of 100 (Routine)
25 May 1980	Las Prietas, MX	daily high min (Tie)	25.0 C (77.0 F)	tie	19 years	2 of 100 (Routine)
19 May 1980	Las Prietas, MX	daily rain	66.8 mm (2.6 in)	45.0 mm (1.8 in)	28 years	38 of 100 (Notable)
19 May 1980	Las Prietas, MX	daily high min (Tie)	25.0 C (77.0 F)	tie	27 years	2 of 100 (Routine)
16 May 1980	Las Prietas, MX	daily high max	42.8 C (109.0 F)	2.2 C (4.0 F)	12 years	12 of 100 (Routine)
12 May 1980	Las Prietas, MX	daily high max	42.2 C (108.0 F)	2.2 C (4.0 F)	13 years	12 of 100 (Routine)
11 May 1980	Las Prietas, MX	daily high min	24.4 C (75.9 F)	0.5 C (0.9 F)	15 years	9 of 100 (Routine)
8 May 1980	Las Prietas, MX	daily high max (Tie)	40.6 C (105.1 F)	tie	19 years	2 of 100 (Routine)
30 April 1980	Las Prietas, MX	daily low min	15.6 C (60.1 F)	2.7 C (4.9 F)	22 years	20 of 100 (Routine)
29 April 1980	Las Prietas, MX	daily low min	16.7 C (62.1 F)	2.2 C (4.0 F)	23 years	17 of 100 (Routine)

Climate Trend

27 complete years, 1952 to 1979

One stripe for each of 27 complete years at Las Prietas, 1952 to 1979. Blue stripes are years cooler than the station's own mean of 25.2 C (77.4 F); red stripes are warmer. The coolest year was 1954, at 23.5 C (74.2 F), and the warmest was 1961, at 27.0 C (80.7 F). The strongest colour marks a difference of 1.8 C (3.2 F).

Annual mean temperature at Las Prietas as warming stripes, 1952 to 1979
Year	Annual mean temperature	Difference from the station mean
1952	24.9 C	-0.33 C
1953	25.4 C	+0.14 C
1954	23.5 C	-1.79 C
1955	26.1 C	+0.85 C
1956	25.4 C	+0.14 C
1957	25.6 C	+0.36 C
1958	25.1 C	-0.18 C
1959	25.0 C	-0.26 C
1960	25.4 C	+0.11 C
1961	27.0 C	+1.79 C
1962	26.4 C	+1.10 C
1963	25.8 C	+0.54 C
1964	25.8 C	+0.58 C
1966	24.8 C	-0.41 C
1967	25.4 C	+0.19 C
1968	25.2 C	-0.06 C
1969	25.7 C	+0.42 C
1970	24.9 C	-0.37 C
1971	25.7 C	+0.44 C
1972	25.6 C	+0.34 C
1973	25.1 C	-0.20 C
1974	24.9 C	-0.31 C
1975	25.1 C	-0.11 C
1976	24.4 C	-0.81 C
1977	24.7 C	-0.60 C
1978	24.4 C	-0.82 C
1979	24.5 C	-0.77 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

1948 to 1982

Yearly extremes at Las Prietas: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	45.0 C (113.0 F)	1971	41.7 C (107.1 F)	33
Coldest night (TNn)	1.7 C (35.1 F)	1960	9.4 C (48.9 F)	33
Wettest day (Rx1day)	172.0 mm (6.8 in)	1974	105.2 mm (4.1 in)	34
Wettest five days (Rx5day)	344.4 mm (13.6 in)	1975	216.7 mm (8.5 in)	34
Longest dry spell (CDD)	85 days	1960	37 days	34

Hottest day (TXx)

The hottest day of the year at Las Prietas, 1948 to 1982. The record is 45.0 C (113.0 F) in 1971, marked on the chart; the median year is 41.7 C (107.1 F).

Hottest day (TXx) at Las Prietas by year
Year	Hottest day (TXx)
1948	n/a
1950	39.4 C (102.9 F)
1951	41.7 C (107.1 F)
1952	41.7 C (107.1 F)
1953	43.9 C (111.0 F)
1954	39.4 C (102.9 F)
1955	42.8 C (109.0 F)
1956	41.1 C (106.0 F)
1957	42.2 C (108.0 F)
1958	43.3 C (109.9 F)
1959	38.9 C (102.0 F)
1960	40.6 C (105.1 F)
1961	44.4 C (111.9 F)
1962	42.2 C (108.0 F)
1963	41.7 C (107.1 F)
1964	43.3 C (109.9 F)
1965	41.1 C (106.0 F)
1966	39.4 C (102.9 F)
1967	42.8 C (109.0 F)
1968	41.7 C (107.1 F)
1969	42.2 C (108.0 F)
1970	41.7 C (107.1 F)
1971	45.0 C (113.0 F)
1972	41.7 C (107.1 F)
1973	42.8 C (109.0 F)
1974	42.8 C (109.0 F)
1975	41.7 C (107.1 F)
1976	40.0 C (104.0 F)
1977	41.1 C (106.0 F)
1978	42.8 C (109.0 F)
1979	40.0 C (104.0 F)
1980	42.8 C (109.0 F)
1981	33.9 C (93.0 F)
1982	36.7 C (98.1 F)

Coldest night (TNn)

The coldest night of the year at Las Prietas, 1948 to 1982. The record is 1.7 C (35.1 F) in 1960, marked on the chart; the median year is 9.4 C (48.9 F).

Coldest night (TNn) at Las Prietas by year
Year	Coldest night (TNn)
1948	n/a
1950	10.0 C (50.0 F)
1951	5.6 C (42.1 F)
1952	6.1 C (43.0 F)
1953	7.8 C (46.0 F)
1954	6.1 C (43.0 F)
1955	9.4 C (48.9 F)
1956	9.4 C (48.9 F)
1957	5.0 C (41.0 F)
1958	7.2 C (45.0 F)
1959	10.0 C (50.0 F)
1960	1.7 C (35.1 F)
1961	11.1 C (52.0 F)
1962	10.6 C (51.1 F)
1963	6.7 C (44.1 F)
1964	10.0 C (50.0 F)
1965	10.0 C (50.0 F)
1966	7.8 C (46.0 F)
1967	6.7 C (44.1 F)
1968	8.9 C (48.0 F)
1969	11.7 C (53.1 F)
1970	5.0 C (41.0 F)
1971	10.0 C (50.0 F)
1972	10.0 C (50.0 F)
1973	6.1 C (43.0 F)
1974	8.9 C (48.0 F)
1975	10.0 C (50.0 F)
1976	10.0 C (50.0 F)
1977	7.2 C (45.0 F)
1978	7.8 C (46.0 F)
1979	10.0 C (50.0 F)
1980	10.6 C (51.1 F)
1981	15.6 C (60.1 F)
1982	11.7 C (53.1 F)

Wettest day (Rx1day)

The wettest day of the year at Las Prietas, 1948 to 1982. The record is 172.0 mm (6.8 in) in 1974, marked on the chart; the median year is 105.2 mm (4.1 in).

Wettest day (Rx1day) at Las Prietas by year
Year	Wettest day (Rx1day)
1948	18.3 mm (0.7 in)
1950	113.8 mm (4.5 in)
1951	94.0 mm (3.7 in)
1952	127.0 mm (5.0 in)
1953	76.5 mm (3.0 in)
1954	107.4 mm (4.2 in)
1955	84.6 mm (3.3 in)
1956	114.6 mm (4.5 in)
1957	82.8 mm (3.3 in)
1958	134.6 mm (5.3 in)
1959	153.7 mm (6.1 in)
1960	110.0 mm (4.3 in)
1961	112.3 mm (4.4 in)
1962	170.9 mm (6.7 in)
1963	68.8 mm (2.7 in)
1964	160.0 mm (6.3 in)
1965	104.4 mm (4.1 in)
1966	120.7 mm (4.8 in)
1967	118.1 mm (4.6 in)
1968	111.3 mm (4.4 in)
1969	111.0 mm (4.4 in)
1970	64.3 mm (2.5 in)
1971	88.9 mm (3.5 in)
1972	75.9 mm (3.0 in)
1973	78.0 mm (3.1 in)
1974	172.0 mm (6.8 in)
1975	105.9 mm (4.2 in)
1976	160.8 mm (6.3 in)
1977	54.9 mm (2.2 in)
1978	100.6 mm (4.0 in)
1979	77.0 mm (3.0 in)
1980	66.8 mm (2.6 in)
1981	50.0 mm (2.0 in)
1982	6.9 mm (0.27 in)

Wettest five days (Rx5day)

The wettest five days of the year at Las Prietas, 1948 to 1982. The record is 344.4 mm (13.6 in) in 1975, marked on the chart; the median year is 216.7 mm (8.5 in).

Wettest five days (Rx5day) at Las Prietas by year
Year	Wettest five days (Rx5day)
1948	21.6 mm (0.9 in)
1950	243.4 mm (9.6 in)
1951	197.9 mm (7.8 in)
1952	297.0 mm (11.7 in)
1953	201.8 mm (7.9 in)
1954	260.1 mm (10.2 in)
1955	261.1 mm (10.3 in)
1956	308.6 mm (12.1 in)
1957	135.2 mm (5.3 in)
1958	258.9 mm (10.2 in)
1959	254.4 mm (10.0 in)
1960	229.2 mm (9.0 in)
1961	178.8 mm (7.0 in)
1962	226.6 mm (8.9 in)
1963	161.9 mm (6.4 in)
1964	232.3 mm (9.1 in)
1965	195.5 mm (7.7 in)
1966	228.7 mm (9.0 in)
1967	197.6 mm (7.8 in)
1968	273.1 mm (10.8 in)
1969	302.5 mm (11.9 in)
1970	174.3 mm (6.9 in)
1971	173.3 mm (6.8 in)
1972	229.8 mm (9.0 in)
1973	206.8 mm (8.1 in)
1974	247.4 mm (9.7 in)
1975	344.4 mm (13.6 in)
1976	250.4 mm (9.9 in)
1977	94.7 mm (3.7 in)
1978	161.4 mm (6.4 in)
1979	174.3 mm (6.9 in)
1980	66.8 mm (2.6 in)
1981	98.8 mm (3.9 in)
1982	8.7 mm (0.34 in)

Longest dry spell (CDD)

The longest dry spell of the year at Las Prietas, 1948 to 1982. The record is 85 days in 1960, marked on the chart; the median year is 37 days.

Longest dry spell (CDD) at Las Prietas by year
Year	Longest dry spell (CDD)
1948	24 days
1950	35 days
1951	70 days
1952	36 days
1953	42 days
1954	35 days
1955	55 days
1956	22 days
1957	30 days
1958	34 days
1959	19 days
1960	85 days
1961	60 days
1962	59 days
1963	77 days
1964	32 days
1965	49 days
1966	47 days
1967	23 days
1968	37 days
1969	25 days
1970	49 days
1971	33 days
1972	51 days
1973	62 days
1974	27 days
1975	38 days
1976	37 days
1977	46 days
1978	29 days
1979	40 days
1980	42 days
1981	9 days
1982	22 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 Las Prietas standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Las Prietas 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).