Rosario Izapa (Impa) Weather Records (MXN00007079)

Record envelope, standing records and threshold days for Rosario Izapa (Impa) (MXN00007079), Mexico, with 30 years of record.

Key Facts for Rosario Izapa (Impa)

Rosario Izapa (Impa) (MXN00007079) is a weather station in Mexico at 14.97 latitude and -92.15 longitude, 425 m (1,394 ft) above sea level.
The station reports from 1961 to 1990, 30 years of record.
1,464 records set at Rosario Izapa (Impa) still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 14.97 latitude, -92.15 longitude.
Elevation: 425 m (1,394 ft).
Period of record: 1961 to 1990, 30 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 Rosario Izapa (Impa). 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 Rosario Izapa (Impa), 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)	11.1 C (52.0 F)	n/a	n/a
Feb	35.0 C (95.0 F)	12.8 C (55.0 F)	n/a	n/a
Mar	35.0 C (95.0 F)	11.7 C (53.1 F)	n/a	n/a
Apr	36.1 C (97.0 F)	15.0 C (59.0 F)	n/a	n/a
May	38.3 C (100.9 F)	16.7 C (62.1 F)	n/a	n/a
Jun	33.3 C (91.9 F)	16.1 C (61.0 F)	n/a	n/a
Jul	35.0 C (95.0 F)	16.1 C (61.0 F)	n/a	n/a
Aug	33.9 C (93.0 F)	16.7 C (62.1 F)	n/a	n/a
Sep	33.9 C (93.0 F)	16.7 C (62.1 F)	n/a	n/a
Oct	33.3 C (91.9 F)	15.0 C (59.0 F)	n/a	n/a
Nov	35.0 C (95.0 F)	11.7 C (53.1 F)	n/a	n/a
Dec	36.1 C (97.0 F)	11.7 C (53.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Rosario Izapa (Impa) still stand. 1987 holds the most, with 101.

Standing records at Rosario Izapa (Impa) by the year they were set
Year set	Standing records
1961	62
1962	79
1963	52
1964	70
1965	62
1966	46
1967	65
1968	64
1969	45
1970	38
1971	44
1972	46
1973	47
1974	43
1975	29
1976	55
1977	49
1978	36
1979	36
1980	54
1981	31
1982	4
1983	100
1984	42
1985	26
1986	43
1987	101
1988	49
1989	32
1990	14

Wettest Day of Each Month

Jun: 269.0 mm (10.6 in)

The wettest day on record for each calendar month at Rosario Izapa (Impa). The most was 269.0 mm (10.6 in) on 11 June 1964.

Record daily precipitation for each month at Rosario Izapa (Impa)
Month	Record daily precipitation (mm)	Date
Jan	107.4 mm (4.2 in)	17 January 1971
Feb	69.9 mm (2.8 in)	28 February 1974
Mar	79.8 mm (3.1 in)	14 March 1969
Apr	106.4 mm (4.2 in)	27 April 1964
May	150.4 mm (5.9 in)	24 May 1972
Jun	269.0 mm (10.6 in)	11 June 1964
Jul	159.8 mm (6.3 in)	9 July 1964
Aug	123.4 mm (4.9 in)	12 August 1985
Sep	220.0 mm (8.7 in)	26 September 1963
Oct	163.3 mm (6.4 in)	3 October 1970
Nov	155.4 mm (6.1 in)	2 November 1961
Dec	60.7 mm (2.4 in)	4 December 1987

Period of Record Coverage

1961 to 1990

30 years of record at Rosario Izapa (Impa), 1961 to 1990. 5 years have data for under 90 percent of days and are left out of rankings: 1969, 1979, 1982, 1983, 1990.

Days with data per year at Rosario Izapa (Impa)
Year	Days with data	Share of year	Complete
1961	363	99%	Yes
1962	365	100%	Yes
1963	360	99%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	364	100%	Yes
1968	336	92%	Yes
1969	275	75%	No
1970	365	100%	Yes
1971	365	100%	Yes
1972	365	100%	Yes
1973	363	99%	Yes
1974	364	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	333	91%	Yes
1978	361	99%	Yes
1979	302	83%	No
1980	366	100%	Yes
1981	364	100%	Yes
1982	31	8%	No
1983	304	83%	No
1984	366	100%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	334	92%	Yes
1988	366	100%	Yes
1989	365	100%	Yes
1990	242	66%	No

Latest Records

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

Climate Trend

21 complete years, 1961 to 1989

One stripe for each of 21 complete years at Rosario Izapa (Impa), 1961 to 1989. Blue stripes are years cooler than the station's own mean of 24.9 C (76.9 F); red stripes are warmer. The coolest year was 1962, at 24.4 C (75.9 F), and the warmest was 1988, at 25.5 C (77.9 F). The strongest colour marks a difference of 0.6 C (1.1 F).

Annual mean temperature at Rosario Izapa (Impa) as warming stripes, 1961 to 1989
Year	Annual mean temperature	Difference from the station mean
1961	24.6 C	-0.34 C
1962	24.4 C	-0.52 C
1963	24.5 C	-0.41 C
1964	24.6 C	-0.35 C
1965	24.6 C	-0.33 C
1966	24.8 C	-0.14 C
1967	24.5 C	-0.39 C
1970	24.9 C	0.00 C
1972	25.1 C	+0.15 C
1973	25.1 C	+0.13 C
1974	24.7 C	-0.19 C
1975	24.8 C	-0.12 C
1976	24.9 C	+0.01 C
1978	25.2 C	+0.32 C
1980	25.4 C	+0.47 C
1981	25.1 C	+0.22 C
1984	25.3 C	+0.40 C
1985	25.1 C	+0.18 C
1986	25.2 C	+0.29 C
1988	25.5 C	+0.56 C
1989	25.0 C	+0.09 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

1961 to 1990

Yearly extremes at Rosario Izapa (Impa): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.3 C (100.9 F)	1963	35.0 C (95.0 F)	30
Coldest night (TNn)	11.1 C (52.0 F)	1970	14.4 C (57.9 F)	30
Wettest day (Rx1day)	269.0 mm (10.6 in)	1964	125.3 mm (4.9 in)	30
Wettest five days (Rx5day)	454.7 mm (17.9 in)	1970	295.2 mm (11.6 in)	30
Longest dry spell (CDD)	67 days	1964	33 days	30

Hottest day (TXx)

The hottest day of the year at Rosario Izapa (Impa), 1961 to 1990. The record is 38.3 C (100.9 F) in 1963, marked on the chart; the median year is 35.0 C (95.0 F).

Hottest day (TXx) at Rosario Izapa (Impa) by year
Year	Hottest day (TXx)
1961	35.0 C (95.0 F)
1962	33.3 C (91.9 F)
1963	38.3 C (100.9 F)
1964	35.0 C (95.0 F)
1965	36.7 C (98.1 F)
1966	34.4 C (93.9 F)
1967	33.9 C (93.0 F)
1968	33.3 C (91.9 F)
1969	34.4 C (93.9 F)
1970	34.4 C (93.9 F)
1971	33.9 C (93.0 F)
1972	34.4 C (93.9 F)
1973	36.1 C (97.0 F)
1974	36.7 C (98.1 F)
1975	33.9 C (93.0 F)
1976	33.3 C (91.9 F)
1977	35.0 C (95.0 F)
1978	33.9 C (93.0 F)
1979	35.0 C (95.0 F)
1980	37.8 C (100.0 F)
1981	35.0 C (95.0 F)
1982	33.9 C (93.0 F)
1983	36.1 C (97.0 F)
1984	35.0 C (95.0 F)
1985	35.0 C (95.0 F)
1986	34.4 C (93.9 F)
1987	36.1 C (97.0 F)
1988	35.0 C (95.0 F)
1989	38.3 C (100.9 F)
1990	34.4 C (93.9 F)

Coldest night (TNn)

The coldest night of the year at Rosario Izapa (Impa), 1961 to 1990. The record is 11.1 C (52.0 F) in 1970, marked on the chart; the median year is 14.4 C (57.9 F).

Coldest night (TNn) at Rosario Izapa (Impa) by year
Year	Coldest night (TNn)
1961	11.7 C (53.1 F)
1962	15.0 C (59.0 F)
1963	13.9 C (57.0 F)
1964	15.0 C (59.0 F)
1965	13.9 C (57.0 F)
1966	12.2 C (54.0 F)
1967	14.4 C (57.9 F)
1968	12.8 C (55.0 F)
1969	15.0 C (59.0 F)
1970	11.1 C (52.0 F)
1971	15.0 C (59.0 F)
1972	14.4 C (57.9 F)
1973	11.7 C (53.1 F)
1974	15.0 C (59.0 F)
1975	15.0 C (59.0 F)
1976	14.4 C (57.9 F)
1977	15.0 C (59.0 F)
1978	13.9 C (57.0 F)
1979	15.0 C (59.0 F)
1980	13.9 C (57.0 F)
1981	11.7 C (53.1 F)
1982	15.0 C (59.0 F)
1983	11.7 C (53.1 F)
1984	15.0 C (59.0 F)
1985	14.4 C (57.9 F)
1986	13.3 C (55.9 F)
1987	13.3 C (55.9 F)
1988	15.0 C (59.0 F)
1989	12.8 C (55.0 F)
1990	15.6 C (60.1 F)

Wettest day (Rx1day)

The wettest day of the year at Rosario Izapa (Impa), 1961 to 1990. The record is 269.0 mm (10.6 in) in 1964, marked on the chart; the median year is 125.3 mm (4.9 in).

Wettest day (Rx1day) at Rosario Izapa (Impa) by year
Year	Wettest day (Rx1day)
1961	155.4 mm (6.1 in)
1962	114.3 mm (4.5 in)
1963	220.0 mm (8.7 in)
1964	269.0 mm (10.6 in)
1965	110.0 mm (4.3 in)
1966	146.8 mm (5.8 in)
1967	124.5 mm (4.9 in)
1968	117.9 mm (4.6 in)
1969	142.5 mm (5.6 in)
1970	163.3 mm (6.4 in)
1971	136.4 mm (5.4 in)
1972	150.4 mm (5.9 in)
1973	123.4 mm (4.9 in)
1974	159.8 mm (6.3 in)
1975	111.3 mm (4.4 in)
1976	107.4 mm (4.2 in)
1977	103.4 mm (4.1 in)
1978	153.2 mm (6.0 in)
1979	126.0 mm (5.0 in)
1980	109.7 mm (4.3 in)
1981	148.6 mm (5.9 in)
1982	0.0 mm (0.00 in)
1983	111.3 mm (4.4 in)
1984	130.8 mm (5.1 in)
1985	123.4 mm (4.9 in)
1986	143.8 mm (5.7 in)
1987	117.1 mm (4.6 in)
1988	172.0 mm (6.8 in)
1989	107.7 mm (4.2 in)
1990	121.9 mm (4.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Rosario Izapa (Impa), 1961 to 1990. The record is 454.7 mm (17.9 in) in 1970, marked on the chart; the median year is 295.2 mm (11.6 in).

Wettest five days (Rx5day) at Rosario Izapa (Impa) by year
Year	Wettest five days (Rx5day)
1961	273.4 mm (10.8 in)
1962	306.5 mm (12.1 in)
1963	319.1 mm (12.6 in)
1964	363.8 mm (14.3 in)
1965	256.9 mm (10.1 in)
1966	236.0 mm (9.3 in)
1967	263.3 mm (10.4 in)
1968	375.9 mm (14.8 in)
1969	286.5 mm (11.3 in)
1970	454.7 mm (17.9 in)
1971	301.8 mm (11.9 in)
1972	303.3 mm (11.9 in)
1973	401.4 mm (15.8 in)
1974	334.8 mm (13.2 in)
1975	278.8 mm (11.0 in)
1976	269.1 mm (10.6 in)
1977	254.8 mm (10.0 in)
1978	319.1 mm (12.6 in)
1979	322.4 mm (12.7 in)
1980	269.2 mm (10.6 in)
1981	318.3 mm (12.5 in)
1982	0.0 mm (0.00 in)
1983	288.6 mm (11.4 in)
1984	240.2 mm (9.5 in)
1985	281.9 mm (11.1 in)
1986	354.2 mm (13.9 in)
1987	284.8 mm (11.2 in)
1988	348.5 mm (13.7 in)
1989	288.4 mm (11.4 in)
1990	342.1 mm (13.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Rosario Izapa (Impa), 1961 to 1990. The record is 67 days in 1964, marked on the chart; the median year is 33 days.

Longest dry spell (CDD) at Rosario Izapa (Impa) by year
Year	Longest dry spell (CDD)
1961	22 days
1962	53 days
1963	35 days
1964	67 days
1965	43 days
1966	35 days
1967	54 days
1968	25 days
1969	17 days
1970	42 days
1971	23 days
1972	22 days
1973	31 days
1974	36 days
1975	18 days
1976	49 days
1977	34 days
1978	45 days
1979	35 days
1980	24 days
1981	47 days
1982	31 days
1983	25 days
1984	23 days
1985	22 days
1986	49 days
1987	62 days
1988	26 days
1989	25 days
1990	11 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 Rosario Izapa (Impa) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Rosario Izapa (Impa) 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).