Bellaco Weather Records (MXN00030014)

Record envelope, standing records and threshold days for Bellaco (MXN00030014), Mexico, with 33 years of record.

Key Facts for Bellaco

Bellaco (MXN00030014) is a weather station in Mexico at 17.78 latitude and -95.17 longitude, 34 m (111 ft) above sea level.
The station reports from 1948 to 1980, 33 years of record.
1,464 records set at Bellaco still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Bellaco set a daily record low minimum temperature of 12.8 C (55.0 F) on 29 December 1980.

About the Station

Location: Mexico, 17.78 latitude, -95.17 longitude.
Elevation: 34 m (111 ft).
Period of record: 1948 to 1980, 33 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 Bellaco. 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 Bellaco, 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)	6.7 C (44.1 F)	n/a	n/a
Feb	38.3 C (100.9 F)	3.9 C (39.0 F)	n/a	n/a
Mar	43.3 C (109.9 F)	10.6 C (51.1 F)	n/a	n/a
Apr	41.7 C (107.1 F)	8.9 C (48.0 F)	n/a	n/a
May	43.3 C (109.9 F)	13.3 C (55.9 F)	n/a	n/a
Jun	42.8 C (109.0 F)	15.0 C (59.0 F)	n/a	n/a
Jul	39.4 C (102.9 F)	15.6 C (60.1 F)	n/a	n/a
Aug	38.9 C (102.0 F)	17.8 C (64.0 F)	n/a	n/a
Sep	38.9 C (102.0 F)	16.1 C (61.0 F)	n/a	n/a
Oct	38.9 C (102.0 F)	12.8 C (55.0 F)	n/a	n/a
Nov	36.7 C (98.1 F)	8.3 C (46.9 F)	n/a	n/a
Dec	37.2 C (99.0 F)	7.8 C (46.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Bellaco still stand. 1962 holds the most, with 88.

Standing records at Bellaco by the year they were set
Year set	Standing records
1948	15
1949	41
1950	34
1951	26
1952	52
1953	45
1954	50
1955	41
1956	51
1957	65
1958	69
1959	58
1960	72
1961	58
1962	88
1963	38
1964	41
1965	39
1966	75
1967	36
1968	25
1969	59
1970	29
1971	20
1972	36
1973	35
1974	28
1975	25
1976	16
1977	54
1978	63
1979	35
1980	45

All-Time Record Progression

1 new records

1 all-time records were set at Bellaco between 24 September 1980 and 24 September 1980. Each dot is a new record.

Wettest Day of Each Month

Sep: 185.2 mm (7.3 in)

The wettest day on record for each calendar month at Bellaco. The most was 185.2 mm (7.3 in) on 24 September 1980.

Record daily precipitation for each month at Bellaco
Month	Record daily precipitation (mm)	Date
Jan	80.3 mm (3.2 in)	14 January 1976
Feb	48.5 mm (1.9 in)	2 February 1968
Mar	23.6 mm (0.9 in)	23 March 1961
Apr	71.9 mm (2.8 in)	16 April 1954
May	120.9 mm (4.8 in)	13 May 1976
Jun	133.4 mm (5.3 in)	23 June 1952
Jul	137.2 mm (5.4 in)	18 July 1958
Aug	118.4 mm (4.7 in)	31 August 1971
Sep	185.2 mm (7.3 in)	24 September 1980
Oct	88.6 mm (3.5 in)	3 October 1955
Nov	57.4 mm (2.3 in)	11 November 1974
Dec	54.9 mm (2.2 in)	10 December 1961

Period of Record Coverage

1948 to 1980

33 years of record at Bellaco, 1948 to 1980. 4 years have data for under 90 percent of days and are left out of rankings: 1948, 1951, 1967, 1980.

Days with data per year at Bellaco
Year	Days with data	Share of year	Complete
1948	58	16%	No
1949	334	92%	Yes
1950	333	91%	Yes
1951	179	49%	No
1952	335	92%	Yes
1953	364	100%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	364	100%	Yes
1960	364	99%	Yes
1961	332	91%	Yes
1962	333	91%	Yes
1963	361	99%	Yes
1964	361	99%	Yes
1965	363	99%	Yes
1966	365	100%	Yes
1967	304	83%	No
1968	364	99%	Yes
1969	363	99%	Yes
1970	364	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	364	100%	Yes
1976	365	100%	Yes
1977	360	99%	Yes
1978	362	99%	Yes
1979	364	100%	Yes
1980	305	83%	No

Latest Records

Latest records at Bellaco
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 December 1980	Bellaco, MX	daily low min	12.8 C (55.0 F)	1.1 C (2.0 F)	25 years	14 of 100 (Routine)
19 December 1980	Bellaco, MX	daily low min	11.1 C (52.0 F)	0.6 C (1.1 F)	22 years	11 of 100 (Routine)
18 December 1980	Bellaco, MX	daily low min	10.0 C (50.0 F)	0.6 C (1.1 F)	7 years	7 of 100 (Routine)
4 December 1980	Bellaco, MX	daily rain	23.4 mm (0.9 in)	15.0 mm (0.6 in)	2 years	20 of 100 (Routine)
3 December 1980	Bellaco, MX	daily rain	11.7 mm (0.5 in)	6.1 mm (0.24 in)	1 year	11 of 100 (Routine)
1 December 1980	Bellaco, MX	daily low min	13.9 C (57.0 F)	0.5 C (0.9 F)	21 years	11 of 100 (Routine)
27 November 1980	Bellaco, MX	daily low max	21.1 C (70.0 F)	1.7 C (3.1 F)	27 years	16 of 100 (Routine)
26 November 1980	Bellaco, MX	daily low max (Tie)	23.3 C (73.9 F)	tie	8 years	1 of 100 (Routine)
14 November 1980	Bellaco, MX	daily high max (Tie)	32.8 C (91.0 F)	tie	29 years	2 of 100 (Routine)
5 November 1980	Bellaco, MX	daily rain	24.4 mm (1.0 in)	14.7 mm (0.6 in)	4 years	20 of 100 (Routine)
4 November 1980	Bellaco, MX	daily rain (Tie)	23.4 mm (0.9 in)	tie	19 years	2 of 100 (Routine)
31 October 1980	Bellaco, MX	monthly low max (Tie)	21.7 C (71.1 F)	tie	28 years	5 of 100 (Routine)
30 October 1980	Bellaco, MX	daily low max (Tie)	22.8 C (73.0 F)	tie	28 years	2 of 100 (Routine)
28 October 1980	Bellaco, MX	daily high max	35.0 C (95.0 F)	0.6 C (1.1 F)	8 years	7 of 100 (Routine)
28 October 1980	Bellaco, MX	daily high min (Tie)	22.8 C (73.0 F)	tie	11 years	1 of 100 (Routine)
24 October 1980	Bellaco, MX	daily high min	23.9 C (75.0 F)	1.7 C (3.1 F)	23 years	17 of 100 (Routine)
20 October 1980	Bellaco, MX	daily rain	29.5 mm (1.2 in)	17.8 mm (0.7 in)	7 years	19 of 100 (Routine)
20 October 1980	Bellaco, MX	monthly high min (Tie)	25.0 C (77.0 F)	tie	20 years	4 of 100 (Routine)
19 October 1980	Bellaco, MX	daily high max	36.7 C (98.1 F)	1.1 C (2.0 F)	20 years	12 of 100 (Routine)
18 October 1980	Bellaco, MX	daily high max	35.6 C (96.1 F)	0.6 C (1.1 F)	3 years	5 of 100 (Routine)

Climate Trend

24 complete years, 1953 to 1979

One stripe for each of 24 complete years at Bellaco, 1953 to 1979. Blue stripes are years cooler than the station's own mean of 25.8 C (78.5 F); red stripes are warmer. The coolest year was 1954, at 24.7 C (76.5 F), and the warmest was 1978, at 26.5 C (79.6 F). The strongest colour marks a difference of 1.1 C (2.0 F).

Annual mean temperature at Bellaco as warming stripes, 1953 to 1979
Year	Annual mean temperature	Difference from the station mean
1953	25.4 C	-0.47 C
1954	24.7 C	-1.10 C
1955	25.2 C	-0.63 C
1956	25.2 C	-0.62 C
1957	26.4 C	+0.52 C
1958	25.9 C	+0.10 C
1959	25.8 C	-0.01 C
1960	26.0 C	+0.13 C
1963	26.1 C	+0.28 C
1964	26.1 C	+0.30 C
1965	26.0 C	+0.14 C
1966	26.1 C	+0.21 C
1968	25.4 C	-0.40 C
1969	25.9 C	+0.08 C
1970	25.6 C	-0.25 C
1971	26.3 C	+0.43 C
1972	26.4 C	+0.52 C
1973	26.2 C	+0.35 C
1974	25.8 C	+0.00 C
1975	26.2 C	+0.35 C
1976	25.2 C	-0.63 C
1977	25.6 C	-0.23 C
1978	26.5 C	+0.62 C
1979	26.0 C	+0.19 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 1980

Yearly extremes at Bellaco: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	43.3 C (109.9 F)	1960	40.0 C (104.0 F)	33
Coldest night (TNn)	3.9 C (39.0 F)	1960	10.0 C (50.0 F)	33
Wettest day (Rx1day)	185.2 mm (7.3 in)	1980	86.9 mm (3.4 in)	33
Wettest five days (Rx5day)	333.5 mm (13.1 in)	1980	170.5 mm (6.7 in)	33
Longest dry spell (CDD)	64 days	1975	36 days	33

Hottest day (TXx)

The hottest day of the year at Bellaco, 1948 to 1980. The record is 43.3 C (109.9 F) in 1960, marked on the chart; the median year is 40.0 C (104.0 F).

Hottest day (TXx) at Bellaco by year
Year	Hottest day (TXx)
1948	35.6 C (96.1 F)
1949	40.0 C (104.0 F)
1950	39.4 C (102.9 F)
1951	38.9 C (102.0 F)
1952	38.9 C (102.0 F)
1953	40.0 C (104.0 F)
1954	37.2 C (99.0 F)
1955	40.0 C (104.0 F)
1956	40.0 C (104.0 F)
1957	42.8 C (109.0 F)
1958	41.7 C (107.1 F)
1959	40.6 C (105.1 F)
1960	43.3 C (109.9 F)
1961	41.7 C (107.1 F)
1962	40.6 C (105.1 F)
1963	41.1 C (106.0 F)
1964	42.2 C (108.0 F)
1965	40.6 C (105.1 F)
1966	39.4 C (102.9 F)
1967	42.2 C (108.0 F)
1968	40.0 C (104.0 F)
1969	40.0 C (104.0 F)
1970	40.0 C (104.0 F)
1971	40.0 C (104.0 F)
1972	40.0 C (104.0 F)
1973	41.1 C (106.0 F)
1974	40.0 C (104.0 F)
1975	41.1 C (106.0 F)
1976	39.4 C (102.9 F)
1977	40.0 C (104.0 F)
1978	43.3 C (109.9 F)
1979	40.6 C (105.1 F)
1980	43.3 C (109.9 F)

Coldest night (TNn)

The coldest night of the year at Bellaco, 1948 to 1980. The record is 3.9 C (39.0 F) in 1960, marked on the chart; the median year is 10.0 C (50.0 F).

Coldest night (TNn) at Bellaco by year
Year	Coldest night (TNn)
1948	14.4 C (57.9 F)
1949	8.3 C (46.9 F)
1950	10.6 C (51.1 F)
1951	7.8 C (46.0 F)
1952	8.9 C (48.0 F)
1953	7.8 C (46.0 F)
1954	6.7 C (44.1 F)
1955	11.1 C (52.0 F)
1956	7.8 C (46.0 F)
1957	10.0 C (50.0 F)
1958	7.8 C (46.0 F)
1959	12.8 C (55.0 F)
1960	3.9 C (39.0 F)
1961	10.0 C (50.0 F)
1962	10.6 C (51.1 F)
1963	6.7 C (44.1 F)
1964	12.8 C (55.0 F)
1965	10.0 C (50.0 F)
1966	10.0 C (50.0 F)
1967	10.0 C (50.0 F)
1968	10.6 C (51.1 F)
1969	11.7 C (53.1 F)
1970	8.9 C (48.0 F)
1971	10.0 C (50.0 F)
1972	10.6 C (51.1 F)
1973	10.0 C (50.0 F)
1974	11.7 C (53.1 F)
1975	13.3 C (55.9 F)
1976	10.6 C (51.1 F)
1977	10.6 C (51.1 F)
1978	10.0 C (50.0 F)
1979	10.6 C (51.1 F)
1980	10.0 C (50.0 F)

Wettest day (Rx1day)

The wettest day of the year at Bellaco, 1948 to 1980. The record is 185.2 mm (7.3 in) in 1980, marked on the chart; the median year is 86.9 mm (3.4 in).

Wettest day (Rx1day) at Bellaco by year
Year	Wettest day (Rx1day)
1948	38.9 mm (1.5 in)
1949	58.4 mm (2.3 in)
1950	67.3 mm (2.6 in)
1951	74.4 mm (2.9 in)
1952	133.4 mm (5.3 in)
1953	60.5 mm (2.4 in)
1954	77.5 mm (3.1 in)
1955	143.3 mm (5.6 in)
1956	81.0 mm (3.2 in)
1957	85.9 mm (3.4 in)
1958	137.2 mm (5.4 in)
1959	69.3 mm (2.7 in)
1960	85.6 mm (3.4 in)
1961	97.8 mm (3.9 in)
1962	86.9 mm (3.4 in)
1963	106.4 mm (4.2 in)
1964	83.1 mm (3.3 in)
1965	87.4 mm (3.4 in)
1966	80.3 mm (3.2 in)
1967	123.2 mm (4.9 in)
1968	84.1 mm (3.3 in)
1969	91.9 mm (3.6 in)
1970	100.1 mm (3.9 in)
1971	118.9 mm (4.7 in)
1972	93.7 mm (3.7 in)
1973	62.2 mm (2.4 in)
1974	143.8 mm (5.7 in)
1975	98.0 mm (3.9 in)
1976	130.0 mm (5.1 in)
1977	89.9 mm (3.5 in)
1978	84.1 mm (3.3 in)
1979	81.3 mm (3.2 in)
1980	185.2 mm (7.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Bellaco, 1948 to 1980. The record is 333.5 mm (13.1 in) in 1980, marked on the chart; the median year is 170.5 mm (6.7 in).

Wettest five days (Rx5day) at Bellaco by year
Year	Wettest five days (Rx5day)
1948	55.9 mm (2.2 in)
1949	124.5 mm (4.9 in)
1950	126.1 mm (5.0 in)
1951	149.4 mm (5.9 in)
1952	246.4 mm (9.7 in)
1953	138.7 mm (5.5 in)
1954	116.1 mm (4.6 in)
1955	253.8 mm (10.0 in)
1956	119.2 mm (4.7 in)
1957	168.9 mm (6.6 in)
1958	203.7 mm (8.0 in)
1959	116.3 mm (4.6 in)
1960	200.2 mm (7.9 in)
1961	135.7 mm (5.3 in)
1962	172.3 mm (6.8 in)
1963	233.2 mm (9.2 in)
1964	164.9 mm (6.5 in)
1965	222.7 mm (8.8 in)
1966	148.1 mm (5.8 in)
1967	210.2 mm (8.3 in)
1968	215.4 mm (8.5 in)
1969	280.7 mm (11.1 in)
1970	224.8 mm (8.9 in)
1971	214.7 mm (8.5 in)
1972	211.9 mm (8.3 in)
1973	144.1 mm (5.7 in)
1974	243.9 mm (9.6 in)
1975	159.5 mm (6.3 in)
1976	170.3 mm (6.7 in)
1977	139.2 mm (5.5 in)
1978	176.5 mm (6.9 in)
1979	170.5 mm (6.7 in)
1980	333.5 mm (13.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Bellaco, 1948 to 1980. The record is 64 days in 1975, marked on the chart; the median year is 36 days.

Longest dry spell (CDD) at Bellaco by year
Year	Longest dry spell (CDD)
1948	17 days
1949	30 days
1950	20 days
1951	53 days
1952	39 days
1953	40 days
1954	22 days
1955	51 days
1956	40 days
1957	31 days
1958	46 days
1959	17 days
1960	36 days
1961	31 days
1962	28 days
1963	43 days
1964	25 days
1965	38 days
1966	25 days
1967	45 days
1968	28 days
1969	50 days
1970	60 days
1971	36 days
1972	36 days
1973	58 days
1974	19 days
1975	64 days
1976	28 days
1977	19 days
1978	31 days
1979	14 days
1980	43 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.

Rainfall Return Levels

30 years, 1949 to 1979

A day with at least 88.3 mm (3.5 in) of rain is expected about once in 2 years. A day with at least 177.1 mm (7.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Bellaco: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	88.3 mm (3.5 in)
5 years	110.1 mm (4.3 in)
10 years	125.2 mm (4.9 in)
25 years	145.4 mm (5.7 in)
50 years	161.0 mm (6.3 in)	Longer than the 30 years of record
100 years	177.1 mm (7.0 in)	Longer than the 30 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 30 years of values from 1949 to 1979.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 143.8 mm (5.7 in) in 1974; 143.3 mm (5.6 in) in 1955; 137.2 mm (5.4 in) in 1958.

Download the Data

Data for Bellaco standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bellaco 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).