San Juan Bautista Atatlahuca Weather Records (MXN00020005)

Record envelope, standing records and threshold days for San Juan Bautista Atatlahuca (MXN00020005), Mexico, with 30 years of record.

Key Facts for San Juan Bautista Atatlahuca

San Juan Bautista Atatlahuca (MXN00020005) is a weather station in Mexico at 17.52 latitude and -96.83 longitude, 983 m (3,225 ft) above sea level.
The station reports from 1955 to 1984, 30 years of record.
1,464 records set at San Juan Bautista Atatlahuca still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 17.52 latitude, -96.83 longitude.
Elevation: 983 m (3,225 ft).
Period of record: 1955 to 1984, 30 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 San Juan Bautista Atatlahuca. 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 San Juan Bautista Atatlahuca, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	38.3 C (100.9 F)	1.7 C (35.1 F)	n/a	n/a
Feb	40.0 C (104.0 F)	2.8 C (37.0 F)	n/a	n/a
Mar	42.8 C (109.0 F)	7.8 C (46.0 F)	n/a	n/a
Apr	45.0 C (113.0 F)	6.7 C (44.1 F)	n/a	n/a
May	43.9 C (111.0 F)	7.8 C (46.0 F)	n/a	n/a
Jun	43.3 C (109.9 F)	8.3 C (46.9 F)	n/a	n/a
Jul	41.1 C (106.0 F)	7.8 C (46.0 F)	n/a	n/a
Aug	41.1 C (106.0 F)	8.9 C (48.0 F)	n/a	n/a
Sep	40.6 C (105.1 F)	6.7 C (44.1 F)	n/a	n/a
Oct	38.9 C (102.0 F)	7.8 C (46.0 F)	n/a	n/a
Nov	38.9 C (102.0 F)	5.0 C (41.0 F)	n/a	n/a
Dec	37.8 C (100.0 F)	2.8 C (37.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at San Juan Bautista Atatlahuca still stand. 1956 holds the most, with 290.

Standing records at San Juan Bautista Atatlahuca by the year they were set
Year set	Standing records
1955	83
1956	290
1957	98
1958	55
1959	34
1960	45
1961	29
1962	38
1963	37
1964	43
1965	20
1966	35
1967	19
1968	22
1969	18
1970	13
1971	25
1972	32
1973	30
1974	14
1975	30
1976	24
1977	92
1978	31
1979	28
1980	82
1981	79
1982	51
1983	39
1984	28

Wettest Day of Each Month

Jul: 95.0 mm (3.7 in)

The wettest day on record for each calendar month at San Juan Bautista Atatlahuca. The most was 95.0 mm (3.7 in) on 25 July 1973.

Record daily precipitation for each month at San Juan Bautista Atatlahuca
Month	Record daily precipitation (mm)	Date
Jan	47.8 mm (1.9 in)	19 January 1958
Feb	21.8 mm (0.9 in)	24 February 1958
Mar	19.8 mm (0.8 in)	17 March 1969
Apr	27.9 mm (1.1 in)	18 April 1959
May	62.0 mm (2.4 in)	29 May 1956
Jun	59.9 mm (2.4 in)	18 June 1967
Jul	95.0 mm (3.7 in)	25 July 1973
Aug	59.9 mm (2.4 in)	8 August 1969
Sep	71.9 mm (2.8 in)	20 September 1974
Oct	79.8 mm (3.1 in)	18 October 1966
Nov	39.9 mm (1.6 in)	7 November 1961
Dec	15.0 mm (0.6 in)	3 December 1967

Period of Record Coverage

1955 to 1984

30 years of record at San Juan Bautista Atatlahuca, 1955 to 1984. 3 years have data for under 90 percent of days and are left out of rankings: 1955, 1956, 1984.

Days with data per year at San Juan Bautista Atatlahuca
Year	Days with data	Share of year	Complete
1955	258	71%	No
1956	325	89%	No
1957	363	99%	Yes
1958	365	100%	Yes
1959	362	99%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	335	92%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	364	100%	Yes
1982	365	100%	Yes
1983	334	92%	Yes
1984	306	84%	No

Latest Records

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

Climate Trend

25 complete years, 1957 to 1982

One stripe for each of 25 complete years at San Juan Bautista Atatlahuca, 1957 to 1982. Blue stripes are years cooler than the station's own mean of 23.6 C (74.4 F); red stripes are warmer. The coolest year was 1968, at 21.8 C (71.3 F), and the warmest was 1977, at 25.9 C (78.5 F). The strongest colour marks a difference of 2.4 C (4.3 F).

Annual mean temperature at San Juan Bautista Atatlahuca as warming stripes, 1957 to 1982
Year	Annual mean temperature	Difference from the station mean
1957	23.1 C	-0.49 C
1958	23.6 C	+0.04 C
1959	23.4 C	-0.16 C
1960	23.3 C	-0.28 C
1961	23.4 C	-0.13 C
1962	23.4 C	-0.19 C
1963	23.9 C	+0.31 C
1964	23.9 C	+0.32 C
1965	23.4 C	-0.19 C
1966	22.8 C	-0.80 C
1967	22.7 C	-0.87 C
1968	21.8 C	-1.71 C
1969	22.7 C	-0.84 C
1970	22.7 C	-0.87 C
1971	22.9 C	-0.64 C
1972	22.7 C	-0.86 C
1973	23.4 C	-0.13 C
1974	22.8 C	-0.74 C
1975	23.5 C	-0.05 C
1977	25.9 C	+2.31 C
1978	24.6 C	+1.07 C
1979	24.3 C	+0.73 C
1980	24.4 C	+0.88 C
1981	25.5 C	+1.90 C
1982	24.9 C	+1.39 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

1955 to 1984

Yearly extremes at San Juan Bautista Atatlahuca: 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)	1975	41.7 C (107.1 F)	30
Coldest night (TNn)	1.7 C (35.1 F)	1956	7.3 C (45.1 F)	30
Wettest day (Rx1day)	95.0 mm (3.7 in)	1973	40.9 mm (1.6 in)	30
Wettest five days (Rx5day)	174.9 mm (6.9 in)	1975	87.8 mm (3.5 in)	30
Longest dry spell (CDD)	160 days	1977	95 days	30

Hottest day (TXx)

The hottest day of the year at San Juan Bautista Atatlahuca, 1955 to 1984. The record is 45.0 C (113.0 F) in 1975, marked on the chart; the median year is 41.7 C (107.1 F).

Hottest day (TXx) at San Juan Bautista Atatlahuca by year
Year	Hottest day (TXx)
1955	40.0 C (104.0 F)
1956	37.8 C (100.0 F)
1957	41.7 C (107.1 F)
1958	41.7 C (107.1 F)
1959	40.6 C (105.1 F)
1960	40.0 C (104.0 F)
1961	42.8 C (109.0 F)
1962	40.6 C (105.1 F)
1963	40.6 C (105.1 F)
1964	43.9 C (111.0 F)
1965	40.6 C (105.1 F)
1966	40.0 C (104.0 F)
1967	40.6 C (105.1 F)
1968	38.9 C (102.0 F)
1969	42.8 C (109.0 F)
1970	40.6 C (105.1 F)
1971	41.7 C (107.1 F)
1972	40.6 C (105.1 F)
1973	42.8 C (109.0 F)
1974	41.7 C (107.1 F)
1975	45.0 C (113.0 F)
1976	40.6 C (105.1 F)
1977	42.8 C (109.0 F)
1978	42.8 C (109.0 F)
1979	42.8 C (109.0 F)
1980	42.8 C (109.0 F)
1981	43.3 C (109.9 F)
1982	41.7 C (107.1 F)
1983	43.3 C (109.9 F)
1984	43.3 C (109.9 F)

Coldest night (TNn)

The coldest night of the year at San Juan Bautista Atatlahuca, 1955 to 1984. The record is 1.7 C (35.1 F) in 1956, marked on the chart; the median year is 7.3 C (45.1 F).

Coldest night (TNn) at San Juan Bautista Atatlahuca by year
Year	Coldest night (TNn)
1955	2.8 C (37.0 F)
1956	1.7 C (35.1 F)
1957	3.9 C (39.0 F)
1958	3.9 C (39.0 F)
1959	5.6 C (42.1 F)
1960	1.7 C (35.1 F)
1961	2.8 C (37.0 F)
1962	5.0 C (41.0 F)
1963	2.8 C (37.0 F)
1964	5.6 C (42.1 F)
1965	5.0 C (41.0 F)
1966	5.0 C (41.0 F)
1967	7.8 C (46.0 F)
1968	6.7 C (44.1 F)
1969	8.9 C (48.0 F)
1970	8.9 C (48.0 F)
1971	8.9 C (48.0 F)
1972	8.9 C (48.0 F)
1973	8.9 C (48.0 F)
1974	8.9 C (48.0 F)
1975	8.9 C (48.0 F)
1976	7.8 C (46.0 F)
1977	10.0 C (50.0 F)
1978	7.8 C (46.0 F)
1979	5.0 C (41.0 F)
1980	6.7 C (44.1 F)
1981	7.8 C (46.0 F)
1982	7.8 C (46.0 F)
1983	8.9 C (48.0 F)
1984	8.9 C (48.0 F)

Wettest day (Rx1day)

The wettest day of the year at San Juan Bautista Atatlahuca, 1955 to 1984. The record is 95.0 mm (3.7 in) in 1973, marked on the chart; the median year is 40.9 mm (1.6 in).

Wettest day (Rx1day) at San Juan Bautista Atatlahuca by year
Year	Wettest day (Rx1day)
1955	53.8 mm (2.1 in)
1956	62.0 mm (2.4 in)
1957	39.9 mm (1.6 in)
1958	47.8 mm (1.9 in)
1959	38.9 mm (1.5 in)
1960	34.8 mm (1.4 in)
1961	47.0 mm (1.9 in)
1962	42.9 mm (1.7 in)
1963	35.8 mm (1.4 in)
1964	41.9 mm (1.6 in)
1965	47.8 mm (1.9 in)
1966	79.8 mm (3.1 in)
1967	70.9 mm (2.8 in)
1968	39.9 mm (1.6 in)
1969	59.9 mm (2.4 in)
1970	38.9 mm (1.5 in)
1971	25.9 mm (1.0 in)
1972	34.8 mm (1.4 in)
1973	95.0 mm (3.7 in)
1974	71.9 mm (2.8 in)
1975	55.4 mm (2.2 in)
1976	31.8 mm (1.3 in)
1977	24.9 mm (1.0 in)
1978	30.0 mm (1.2 in)
1979	59.9 mm (2.4 in)
1980	39.9 mm (1.6 in)
1981	35.6 mm (1.4 in)
1982	28.4 mm (1.1 in)
1983	35.6 mm (1.4 in)
1984	43.7 mm (1.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at San Juan Bautista Atatlahuca, 1955 to 1984. The record is 174.9 mm (6.9 in) in 1975, marked on the chart; the median year is 87.8 mm (3.5 in).

Wettest five days (Rx5day) at San Juan Bautista Atatlahuca by year
Year	Wettest five days (Rx5day)
1955	136.6 mm (5.4 in)
1956	131.3 mm (5.2 in)
1957	70.4 mm (2.8 in)
1958	76.4 mm (3.0 in)
1959	65.5 mm (2.6 in)
1960	67.3 mm (2.6 in)
1961	91.8 mm (3.6 in)
1962	97.5 mm (3.8 in)
1963	68.5 mm (2.7 in)
1964	54.9 mm (2.2 in)
1965	84.1 mm (3.3 in)
1966	93.8 mm (3.7 in)
1967	132.4 mm (5.2 in)
1968	103.4 mm (4.1 in)
1969	131.5 mm (5.2 in)
1970	69.4 mm (2.7 in)
1971	41.6 mm (1.6 in)
1972	72.4 mm (2.9 in)
1973	136.7 mm (5.4 in)
1974	123.4 mm (4.9 in)
1975	174.9 mm (6.9 in)
1976	93.5 mm (3.7 in)
1977	85.3 mm (3.4 in)
1978	62.5 mm (2.5 in)
1979	90.2 mm (3.6 in)
1980	73.4 mm (2.9 in)
1981	92.2 mm (3.6 in)
1982	36.6 mm (1.4 in)
1983	103.4 mm (4.1 in)
1984	73.4 mm (2.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at San Juan Bautista Atatlahuca, 1955 to 1984. The record is 160 days in 1977, marked on the chart; the median year is 95 days.

Longest dry spell (CDD) at San Juan Bautista Atatlahuca by year
Year	Longest dry spell (CDD)
1955	56 days
1956	112 days
1957	100 days
1958	76 days
1959	61 days
1960	83 days
1961	142 days
1962	93 days
1963	98 days
1964	130 days
1965	143 days
1966	74 days
1967	100 days
1968	107 days
1969	112 days
1970	121 days
1971	68 days
1972	73 days
1973	94 days
1974	69 days
1975	129 days
1976	65 days
1977	160 days
1978	109 days
1979	64 days
1980	96 days
1981	151 days
1982	72 days
1983	73 days
1984	61 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 San Juan Bautista Atatlahuca standing records by year: CSV or JSON. Field meanings are on the data page.
Data for San Juan Bautista Atatlahuca 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).