Almoloya del Rio (Dge) Weather Records (MXN00015004)

Record envelope, standing records and threshold days for Almoloya del Rio (Dge) (MXN00015004), Mexico, with 30 years of record.

Key Facts for Almoloya del Rio (Dge)

Almoloya del Rio (Dge) (MXN00015004) is a weather station in Mexico at 19.15 latitude and -99.48 longitude, 2,572 m (8,438 ft) above sea level.
The station reports from 1961 to 1990, 30 years of record.
1,464 records set at Almoloya del Rio (Dge) still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 19.15 latitude, -99.48 longitude.
Elevation: 2,572 m (8,438 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 Almoloya del Rio (Dge). 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 Almoloya del Rio (Dge), with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	25.6 C (78.1 F)	-10.6 C (12.9 F)	n/a	n/a
Feb	25.6 C (78.1 F)	-11.7 C (10.9 F)	n/a	n/a
Mar	27.2 C (81.0 F)	-8.3 C (17.1 F)	n/a	n/a
Apr	28.9 C (84.0 F)	-6.7 C (19.9 F)	n/a	n/a
May	29.4 C (84.9 F)	-4.4 C (24.1 F)	n/a	n/a
Jun	28.3 C (82.9 F)	-1.1 C (30.0 F)	n/a	n/a
Jul	28.3 C (82.9 F)	1.7 C (35.1 F)	n/a	n/a
Aug	27.8 C (82.0 F)	2.2 C (36.0 F)	n/a	n/a
Sep	27.8 C (82.0 F)	-2.2 C (28.0 F)	n/a	n/a
Oct	25.6 C (78.1 F)	-3.9 C (25.0 F)	n/a	n/a
Nov	25.0 C (77.0 F)	-8.3 C (17.1 F)	n/a	n/a
Dec	23.9 C (75.0 F)	-10.0 C (14.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Almoloya del Rio (Dge) still stand. 1966 holds the most, with 191.

Standing records at Almoloya del Rio (Dge) by the year they were set
Year set	Standing records
1961	84
1962	59
1963	51
1964	39
1965	49
1966	191
1967	136
1968	33
1969	61
1970	25
1971	43
1972	29
1973	55
1974	36
1975	34
1976	70
1977	42
1978	52
1979	44
1980	26
1981	63
1982	46
1983	41
1984	35
1985	13
1986	26
1987	20
1988	34
1989	17
1990	10

Wettest Day of Each Month

Apr: 69.9 mm (2.8 in)

The wettest day on record for each calendar month at Almoloya del Rio (Dge). The most was 69.9 mm (2.8 in) on 13 April 1962.

Record daily precipitation for each month at Almoloya del Rio (Dge)
Month	Record daily precipitation (mm)	Date
Jan	67.3 mm (2.6 in)	10 January 1967
Feb	23.1 mm (0.9 in)	22 February 1982
Mar	38.1 mm (1.5 in)	4 March 1988
Apr	69.9 mm (2.8 in)	13 April 1962
May	35.3 mm (1.4 in)	20 May 1966
Jun	65.3 mm (2.6 in)	10 June 1974
Jul	67.8 mm (2.7 in)	16 July 1963
Aug	58.2 mm (2.3 in)	3 August 1983
Sep	46.5 mm (1.8 in)	29 September 1963
Oct	38.4 mm (1.5 in)	10 October 1976
Nov	17.8 mm (0.7 in)	8 November 1971
Dec	17.3 mm (0.7 in)	11 December 1977

Period of Record Coverage

1961 to 1990

30 years of record at Almoloya del Rio (Dge), 1961 to 1990. 5 years have data for under 90 percent of days and are left out of rankings: 1974, 1983, 1987, 1988, 1990.

Days with data per year at Almoloya del Rio (Dge)
Year	Days with data	Share of year	Complete
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	335	92%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	352	96%	Yes
1969	364	100%	Yes
1970	334	92%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	352	96%	Yes
1974	319	87%	No
1975	334	92%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	365	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	301	82%	No
1984	363	99%	Yes
1985	357	98%	Yes
1986	357	98%	Yes
1987	327	90%	No
1988	312	85%	No
1989	350	96%	Yes
1990	128	35%	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 Almoloya del Rio (Dge), 1961 to 1989. Blue stripes are years cooler than the station's own mean of 11.6 C (52.9 F); red stripes are warmer. The coolest year was 1967, at 9.8 C (49.6 F), and the warmest was 1981, at 12.7 C (54.8 F). The strongest colour marks a difference of 1.9 C (3.4 F).

Annual mean temperature at Almoloya del Rio (Dge) as warming stripes, 1961 to 1989
Year	Annual mean temperature	Difference from the station mean
1961	12.2 C	+0.62 C
1962	11.9 C	+0.32 C
1963	11.9 C	+0.33 C
1965	11.2 C	-0.36 C
1966	10.3 C	-1.31 C
1967	9.8 C	-1.85 C
1969	12.1 C	+0.47 C
1971	12.0 C	+0.42 C
1972	11.9 C	+0.34 C
1973	12.0 C	+0.41 C
1976	11.3 C	-0.28 C
1977	11.7 C	+0.10 C
1978	11.9 C	+0.30 C
1979	11.7 C	+0.14 C
1980	11.9 C	+0.34 C
1981	12.7 C	+1.09 C
1982	12.4 C	+0.77 C
1984	10.9 C	-0.67 C
1985	11.0 C	-0.65 C
1986	11.0 C	-0.58 C
1989	11.7 C	+0.10 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 Almoloya del Rio (Dge): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	29.4 C (84.9 F)	1961	26.7 C (80.1 F)	30
Coldest night (TNn)	-11.7 C (10.9 F)	1976	-7.2 C (19.0 F)	30
Wettest day (Rx1day)	69.9 mm (2.8 in)	1962	41.8 mm (1.6 in)	30
Wettest five days (Rx5day)	140.0 mm (5.5 in)	1977	88.0 mm (3.5 in)	30
Longest dry spell (CDD)	99 days	1989	54 days	30

Hottest day (TXx)

The hottest day of the year at Almoloya del Rio (Dge), 1961 to 1990. The record is 29.4 C (84.9 F) in 1961, marked on the chart; the median year is 26.7 C (80.1 F).

Hottest day (TXx) at Almoloya del Rio (Dge) by year
Year	Hottest day (TXx)
1961	29.4 C (84.9 F)
1962	28.3 C (82.9 F)
1963	27.8 C (82.0 F)
1964	26.7 C (80.1 F)
1965	26.7 C (80.1 F)
1966	27.2 C (81.0 F)
1967	28.3 C (82.9 F)
1968	28.3 C (82.9 F)
1969	26.7 C (80.1 F)
1970	27.8 C (82.0 F)
1971	27.8 C (82.0 F)
1972	26.7 C (80.1 F)
1973	26.7 C (80.1 F)
1974	25.6 C (78.1 F)
1975	25.6 C (78.1 F)
1976	25.6 C (78.1 F)
1977	27.2 C (81.0 F)
1978	26.1 C (79.0 F)
1979	25.6 C (78.1 F)
1980	26.1 C (79.0 F)
1981	27.2 C (81.0 F)
1982	27.8 C (82.0 F)
1983	26.7 C (80.1 F)
1984	26.1 C (79.0 F)
1985	26.1 C (79.0 F)
1986	25.0 C (77.0 F)
1987	25.6 C (78.1 F)
1988	26.1 C (79.0 F)
1989	25.0 C (77.0 F)
1990	26.7 C (80.1 F)

Coldest night (TNn)

The coldest night of the year at Almoloya del Rio (Dge), 1961 to 1990. The record is -11.7 C (10.9 F) in 1976, marked on the chart; the median year is -7.2 C (19.0 F).

Coldest night (TNn) at Almoloya del Rio (Dge) by year
Year	Coldest night (TNn)
1961	-8.9 C (16.0 F)
1962	-7.8 C (18.0 F)
1963	-8.9 C (16.0 F)
1964	-6.1 C (21.0 F)
1965	-8.3 C (17.1 F)
1966	-7.2 C (19.0 F)
1967	-8.3 C (17.1 F)
1968	-6.7 C (19.9 F)
1969	-7.2 C (19.0 F)
1970	-8.3 C (17.1 F)
1971	-6.1 C (21.0 F)
1972	-6.1 C (21.0 F)
1973	-4.4 C (24.1 F)
1974	-0.6 C (30.9 F)
1975	-10.0 C (14.0 F)
1976	-11.7 C (10.9 F)
1977	-5.0 C (23.0 F)
1978	-5.0 C (23.0 F)
1979	-6.1 C (21.0 F)
1980	-7.2 C (19.0 F)
1981	-7.8 C (18.0 F)
1982	-5.0 C (23.0 F)
1983	-10.6 C (12.9 F)
1984	-7.8 C (18.0 F)
1985	-6.7 C (19.9 F)
1986	-9.4 C (15.1 F)
1987	-7.8 C (18.0 F)
1988	-6.7 C (19.9 F)
1989	-7.2 C (19.0 F)
1990	-3.3 C (26.1 F)

Wettest day (Rx1day)

The wettest day of the year at Almoloya del Rio (Dge), 1961 to 1990. The record is 69.9 mm (2.8 in) in 1962, marked on the chart; the median year is 41.8 mm (1.6 in).

Wettest day (Rx1day) at Almoloya del Rio (Dge) by year
Year	Wettest day (Rx1day)
1961	47.8 mm (1.9 in)
1962	69.9 mm (2.8 in)
1963	67.8 mm (2.7 in)
1964	34.3 mm (1.4 in)
1965	35.3 mm (1.4 in)
1966	35.3 mm (1.4 in)
1967	67.3 mm (2.6 in)
1968	27.9 mm (1.1 in)
1969	52.8 mm (2.1 in)
1970	50.8 mm (2.0 in)
1971	52.3 mm (2.1 in)
1972	46.0 mm (1.8 in)
1973	41.4 mm (1.6 in)
1974	65.3 mm (2.6 in)
1975	44.2 mm (1.7 in)
1976	38.4 mm (1.5 in)
1977	42.2 mm (1.7 in)
1978	33.3 mm (1.3 in)
1979	36.1 mm (1.4 in)
1980	42.4 mm (1.7 in)
1981	59.9 mm (2.4 in)
1982	34.3 mm (1.4 in)
1983	58.2 mm (2.3 in)
1984	31.5 mm (1.2 in)
1985	32.0 mm (1.3 in)
1986	41.4 mm (1.6 in)
1987	37.1 mm (1.5 in)
1988	38.1 mm (1.5 in)
1989	43.4 mm (1.7 in)
1990	25.7 mm (1.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Almoloya del Rio (Dge), 1961 to 1990. The record is 140.0 mm (5.5 in) in 1977, marked on the chart; the median year is 88.0 mm (3.5 in).

Wettest five days (Rx5day) at Almoloya del Rio (Dge) by year
Year	Wettest five days (Rx5day)
1961	138.8 mm (5.5 in)
1962	93.1 mm (3.7 in)
1963	104.9 mm (4.1 in)
1964	80.6 mm (3.2 in)
1965	87.6 mm (3.4 in)
1966	92.0 mm (3.6 in)
1967	128.8 mm (5.1 in)
1968	53.0 mm (2.1 in)
1969	136.1 mm (5.4 in)
1970	88.4 mm (3.5 in)
1971	90.4 mm (3.6 in)
1972	96.2 mm (3.8 in)
1973	80.3 mm (3.2 in)
1974	111.3 mm (4.4 in)
1975	84.9 mm (3.3 in)
1976	99.1 mm (3.9 in)
1977	140.0 mm (5.5 in)
1978	67.2 mm (2.6 in)
1979	52.6 mm (2.1 in)
1980	107.2 mm (4.2 in)
1981	94.4 mm (3.7 in)
1982	83.1 mm (3.3 in)
1983	123.8 mm (4.9 in)
1984	59.2 mm (2.3 in)
1985	64.0 mm (2.5 in)
1986	60.2 mm (2.4 in)
1987	65.8 mm (2.6 in)
1988	59.0 mm (2.3 in)
1989	84.1 mm (3.3 in)
1990	50.0 mm (2.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Almoloya del Rio (Dge), 1961 to 1990. The record is 99 days in 1989, marked on the chart; the median year is 54 days.

Longest dry spell (CDD) at Almoloya del Rio (Dge) by year
Year	Longest dry spell (CDD)
1961	51 days
1962	65 days
1963	64 days
1964	51 days
1965	38 days
1966	33 days
1967	66 days
1968	41 days
1969	70 days
1970	79 days
1971	56 days
1972	70 days
1973	57 days
1974	19 days
1975	63 days
1976	41 days
1977	49 days
1978	37 days
1979	47 days
1980	69 days
1981	33 days
1982	78 days
1983	52 days
1984	39 days
1985	68 days
1986	66 days
1987	33 days
1988	81 days
1989	99 days
1990	35 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.

Frost Dates and Growing Season

21 years with a frost

Across 21 years with a frost, the median last spring frost at Almoloya del Rio (Dge) falls on 13 April and the median first autumn frost on 3 November, which leaves a median of 193 days between them.

Frost dates and growing season at Almoloya del Rio (Dge)
Measure	Median, all years	Earliest period	Recent period (1961 to 1989)	Recent against earliest	Fitted trend
Last spring frost	13 April	n/a	13 April	n/a	n/a
First autumn frost	3 November	n/a	3 November	n/a	n/a
Growing days	193 days	n/a	193 days	n/a	n/a

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Download the Data

Data for Almoloya del Rio (Dge) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Almoloya del Rio (Dge) 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).