El Refilion Weather Records (MXN00018010)

Record envelope, standing records and threshold days for El Refilion (MXN00018010), Mexico, with 45 years of record.

Key Facts for El Refilion

El Refilion (MXN00018010) is a weather station in Mexico at 21.30 latitude and -104.90 longitude, 800 m (2,624 ft) above sea level.
The station reports from 1969 to 2013, 45 years of record.
1,464 records set at El Refilion still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
El Refilion set a daily record precipitation of 43.4 mm (1.7 in) on 24 July 2013.

About the Station

Location: Mexico, 21.30 latitude, -104.90 longitude.
Elevation: 800 m (2,624 ft).
Period of record: 1969 to 2013, 45 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 El Refilion. 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 El Refilion, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	35.0 C (95.0 F)	-2.8 C (27.0 F)	n/a	n/a
Feb	36.7 C (98.1 F)	-3.3 C (26.1 F)	n/a	n/a
Mar	36.7 C (98.1 F)	-2.2 C (28.0 F)	n/a	n/a
Apr	40.0 C (104.0 F)	0.6 C (33.1 F)	n/a	n/a
May	37.2 C (99.0 F)	2.8 C (37.0 F)	n/a	n/a
Jun	40.0 C (104.0 F)	5.0 C (41.0 F)	n/a	n/a
Jul	36.7 C (98.1 F)	11.7 C (53.1 F)	n/a	n/a
Aug	35.0 C (95.0 F)	15.0 C (59.0 F)	n/a	n/a
Sep	35.0 C (95.0 F)	10.6 C (51.1 F)	n/a	n/a
Oct	36.7 C (98.1 F)	5.6 C (42.1 F)	n/a	n/a
Nov	36.7 C (98.1 F)	0.0 C (32.0 F)	n/a	n/a
Dec	37.8 C (100.0 F)	0.0 C (32.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at El Refilion still stand. 1987 holds the most, with 90.

Standing records at El Refilion by the year they were set
Year set	Standing records
1970	50
1971	58
1972	59
1973	65
1974	62
1975	43
1976	79
1977	37
1978	33
1979	28
1980	60
1981	40
1982	30
1983	33
1984	39
1985	38
1986	61
1987	90
1988	56
1989	45
1990	40
1991	37
1992	44
1993	33
1994	22
1995	38
1996	34
1997	60
1998	45
1999	49
2011	29
2012	27

Wettest Day of Each Month

Jul: 156.7 mm (6.2 in)

The wettest day on record for each calendar month at El Refilion. The most was 156.7 mm (6.2 in) on 1 July 1998.

Record daily precipitation for each month at El Refilion
Month	Record daily precipitation (mm)	Date
Jan	80.3 mm (3.2 in)	12 January 1987
Feb	48.3 mm (1.9 in)	25 February 1987
Mar	10.9 mm (0.4 in)	12 March 1983
Apr	13.0 mm (0.5 in)	13 April 1997
May	47.0 mm (1.9 in)	26 May 1983
Jun	129.8 mm (5.1 in)	18 June 1974
Jul	156.7 mm (6.2 in)	1 July 1998
Aug	111.8 mm (4.4 in)	31 August 1971
Sep	149.4 mm (5.9 in)	5 September 1971
Oct	81.5 mm (3.2 in)	7 October 1996
Nov	70.9 mm (2.8 in)	24 November 1972
Dec	76.5 mm (3.0 in)	13 December 1992

Period of Record Coverage

1970 to 2012

32 years of record at El Refilion, 1970 to 2012. 5 years have data for under 90 percent of days and are left out of rankings: 1970, 1979, 1980, 1999, 2011.

Days with data per year at El Refilion
Year	Days with data	Share of year	Complete
1970	312	85%	No
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	364	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	351	96%	Yes
1979	213	58%	No
1980	329	90%	No
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	366	100%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	365	100%	Yes
1988	366	100%	Yes
1989	365	100%	Yes
1990	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	365	100%	Yes
1996	366	100%	Yes
1997	365	100%	Yes
1998	365	100%	Yes
1999	159	44%	No
2011	316	87%	No
2012	364	99%	Yes

Latest Records

Latest records at El Refilion
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
24 July 2013	El Refilion, MX	daily rain	43.4 mm (1.7 in)	3.5 mm (0.14 in)	35 years	16 of 100 (Routine)
25 June 2013	El Refilion, MX	daily rain	34.5 mm (1.4 in)	8.6 mm (0.34 in)	19 years	14 of 100 (Routine)
24 June 2013	El Refilion, MX	daily rain	30.0 mm (1.2 in)	7.4 mm (0.29 in)	20 years	14 of 100 (Routine)
8 January 2013	El Refilion, MX	daily rain	10.9 mm (0.4 in)	4.8 mm (0.19 in)	21 years	12 of 100 (Routine)
7 November 2012	El Refilion, MX	daily high max (Tie)	31.7 C (89.1 F)	tie	41 years	4 of 100 (Routine)
4 November 2012	El Refilion, MX	daily high min	18.3 C (64.9 F)	0.5 C (0.9 F)	19 years	10 of 100 (Routine)
23 October 2012	El Refilion, MX	daily high min	20.0 C (68.0 F)	1.1 C (2.0 F)	39 years	18 of 100 (Routine)
16 October 2012	El Refilion, MX	daily low max (Tie)	25.0 C (77.0 F)	tie	34 years	3 of 100 (Routine)
15 October 2012	El Refilion, MX	daily rain	14.5 mm (0.6 in)	7.6 mm (0.30 in)	31 years	18 of 100 (Routine)
15 October 2012	El Refilion, MX	daily low max (Tie)	26.1 C (79.0 F)	tie	18 years	2 of 100 (Routine)
29 September 2012	El Refilion, MX	daily low max (Tie)	26.1 C (79.0 F)	tie	32 years	3 of 100 (Routine)
28 September 2012	El Refilion, MX	daily low max	26.1 C (79.0 F)	1.1 C (2.0 F)	20 years	16 of 100 (Routine)
26 September 2012	El Refilion, MX	daily rain	86.4 mm (3.4 in)	41.9 mm (1.6 in)	32 years	38 of 100 (Notable)
22 September 2012	El Refilion, MX	daily low max	26.7 C (80.1 F)	0.5 C (0.9 F)	27 years	14 of 100 (Routine)
12 September 2012	El Refilion, MX	daily low max (Tie)	25.6 C (78.1 F)	tie	21 years	2 of 100 (Routine)
8 September 2012	El Refilion, MX	daily low max (Tie)	27.8 C (82.0 F)	tie	39 years	3 of 100 (Routine)
25 August 2012	El Refilion, MX	daily rain	64.8 mm (2.6 in)	34.1 mm (1.3 in)	14 years	30 of 100 (Routine)
25 August 2012	El Refilion, MX	daily low max (Tie)	26.1 C (79.0 F)	tie	16 years	2 of 100 (Routine)
24 August 2012	El Refilion, MX	daily low max	25.0 C (77.0 F)	0.6 C (1.1 F)	23 years	13 of 100 (Routine)
23 August 2012	El Refilion, MX	daily low max (Tie)	25.6 C (78.1 F)	tie	26 years	2 of 100 (Routine)

Climate Trend

26 complete years, 1971 to 2012

One stripe for each of 26 complete years at El Refilion, 1971 to 2012. Blue stripes are years cooler than the station's own mean of 21.1 C (70.0 F); red stripes are warmer. The coolest year was 2012, at 20.5 C (68.8 F), and the warmest was 1977, at 21.9 C (71.3 F). The strongest colour marks a difference of 0.8 C (1.4 F).

Annual mean temperature at El Refilion as warming stripes, 1971 to 2012
Year	Annual mean temperature	Difference from the station mean
1971	20.8 C	-0.37 C
1972	21.4 C	+0.28 C
1973	21.2 C	+0.11 C
1974	20.7 C	-0.38 C
1975	20.8 C	-0.36 C
1976	21.6 C	+0.47 C
1977	21.9 C	+0.73 C
1981	21.0 C	-0.12 C
1982	21.2 C	+0.12 C
1983	20.5 C	-0.65 C
1984	20.9 C	-0.26 C
1985	21.0 C	-0.14 C
1986	21.1 C	0.00 C
1987	21.2 C	+0.05 C
1988	21.3 C	+0.20 C
1989	21.4 C	+0.27 C
1990	21.7 C	+0.62 C
1991	21.4 C	+0.27 C
1992	21.3 C	+0.22 C
1993	20.8 C	-0.31 C
1994	21.5 C	+0.39 C
1995	21.3 C	+0.17 C
1996	20.9 C	-0.20 C
1997	21.0 C	-0.17 C
1998	20.8 C	-0.28 C
2012	20.5 C	-0.66 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

1969 to 2013

Yearly extremes at El Refilion: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.0 C (104.0 F)	1980	35.6 C (96.1 F)	32
Coldest night (TNn)	-3.3 C (26.1 F)	1971	1.1 C (34.0 F)	32
Wettest day (Rx1day)	156.7 mm (6.2 in)	1998	74.8 mm (2.9 in)	34
Wettest five days (Rx5day)	248.6 mm (9.8 in)	1993	139.8 mm (5.5 in)	34
Longest dry spell (CDD)	171 days	1982	115 days	34

Hottest day (TXx)

The hottest day of the year at El Refilion, 1969 to 2013. The record is 40.0 C (104.0 F) in 1980, marked on the chart; the median year is 35.6 C (96.1 F).

Hottest day (TXx) at El Refilion by year
Year	Hottest day (TXx)
1969	n/a
1970	36.7 C (98.1 F)
1971	36.1 C (97.0 F)
1972	36.7 C (98.1 F)
1973	35.0 C (95.0 F)
1974	35.0 C (95.0 F)
1975	34.4 C (93.9 F)
1976	37.8 C (100.0 F)
1977	35.6 C (96.1 F)
1978	35.0 C (95.0 F)
1979	35.0 C (95.0 F)
1980	40.0 C (104.0 F)
1981	37.2 C (99.0 F)
1982	35.0 C (95.0 F)
1983	33.9 C (93.0 F)
1984	35.6 C (96.1 F)
1985	35.0 C (95.0 F)
1986	40.0 C (104.0 F)
1987	36.7 C (98.1 F)
1988	36.7 C (98.1 F)
1989	39.4 C (102.9 F)
1990	35.0 C (95.0 F)
1991	38.9 C (102.0 F)
1992	36.1 C (97.0 F)
1993	35.6 C (96.1 F)
1994	36.1 C (97.0 F)
1995	35.6 C (96.1 F)
1996	35.0 C (95.0 F)
1997	37.2 C (99.0 F)
1998	36.7 C (98.1 F)
1999	35.0 C (95.0 F)
2011	32.8 C (91.0 F)
2012	35.0 C (95.0 F)
2013	n/a

Coldest night (TNn)

The coldest night of the year at El Refilion, 1969 to 2013. The record is -3.3 C (26.1 F) in 1971, marked on the chart; the median year is 1.1 C (34.0 F).

Coldest night (TNn) at El Refilion by year
Year	Coldest night (TNn)
1969	n/a
1970	2.8 C (37.0 F)
1971	-3.3 C (26.1 F)
1972	2.2 C (36.0 F)
1973	1.7 C (35.1 F)
1974	-2.2 C (28.0 F)
1975	0.0 C (32.0 F)
1976	1.7 C (35.1 F)
1977	3.9 C (39.0 F)
1978	-2.2 C (28.0 F)
1979	1.7 C (35.1 F)
1980	2.2 C (36.0 F)
1981	3.9 C (39.0 F)
1982	1.7 C (35.1 F)
1983	1.7 C (35.1 F)
1984	1.7 C (35.1 F)
1985	0.6 C (33.1 F)
1986	1.1 C (34.0 F)
1987	0.0 C (32.0 F)
1988	-2.8 C (27.0 F)
1989	1.7 C (35.1 F)
1990	1.1 C (34.0 F)
1991	0.6 C (33.1 F)
1992	2.8 C (37.0 F)
1993	0.0 C (32.0 F)
1994	3.3 C (37.9 F)
1995	1.1 C (34.0 F)
1996	0.6 C (33.1 F)
1997	0.0 C (32.0 F)
1998	0.6 C (33.1 F)
1999	0.0 C (32.0 F)
2011	1.1 C (34.0 F)
2012	2.2 C (36.0 F)
2013	n/a

Wettest day (Rx1day)

The wettest day of the year at El Refilion, 1969 to 2013. The record is 156.7 mm (6.2 in) in 1998, marked on the chart; the median year is 74.8 mm (2.9 in).

Wettest day (Rx1day) at El Refilion by year
Year	Wettest day (Rx1day)
1969	74.7 mm (2.9 in)
1970	72.6 mm (2.9 in)
1971	149.4 mm (5.9 in)
1972	70.9 mm (2.8 in)
1973	112.3 mm (4.4 in)
1974	129.8 mm (5.1 in)
1975	64.8 mm (2.6 in)
1976	74.9 mm (2.9 in)
1977	50.8 mm (2.0 in)
1978	66.3 mm (2.6 in)
1979	30.0 mm (1.2 in)
1980	52.8 mm (2.1 in)
1981	105.9 mm (4.2 in)
1982	60.5 mm (2.4 in)
1983	62.2 mm (2.4 in)
1984	87.9 mm (3.5 in)
1985	86.4 mm (3.4 in)
1986	55.6 mm (2.2 in)
1987	80.3 mm (3.2 in)
1988	62.7 mm (2.5 in)
1989	85.6 mm (3.4 in)
1990	55.4 mm (2.2 in)
1991	90.9 mm (3.6 in)
1992	76.5 mm (3.0 in)
1993	105.7 mm (4.2 in)
1994	66.5 mm (2.6 in)
1995	95.0 mm (3.7 in)
1996	81.5 mm (3.2 in)
1997	49.0 mm (1.9 in)
1998	156.7 mm (6.2 in)
1999	0.0 mm (0.00 in)
2011	91.9 mm (3.6 in)
2012	86.4 mm (3.4 in)
2013	45.7 mm (1.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at El Refilion, 1969 to 2013. The record is 248.6 mm (9.8 in) in 1993, marked on the chart; the median year is 139.8 mm (5.5 in).

Wettest five days (Rx5day) at El Refilion by year
Year	Wettest five days (Rx5day)
1969	137.7 mm (5.4 in)
1970	107.5 mm (4.2 in)
1971	244.4 mm (9.6 in)
1972	122.7 mm (4.8 in)
1973	203.8 mm (8.0 in)
1974	232.9 mm (9.2 in)
1975	122.1 mm (4.8 in)
1976	154.9 mm (6.1 in)
1977	101.4 mm (4.0 in)
1978	147.2 mm (5.8 in)
1979	75.0 mm (3.0 in)
1980	119.1 mm (4.7 in)
1981	195.8 mm (7.7 in)
1982	94.8 mm (3.7 in)
1983	135.1 mm (5.3 in)
1984	144.8 mm (5.7 in)
1985	169.5 mm (6.7 in)
1986	123.1 mm (4.8 in)
1987	175.4 mm (6.9 in)
1988	148.7 mm (5.9 in)
1989	113.7 mm (4.5 in)
1990	120.9 mm (4.8 in)
1991	141.9 mm (5.6 in)
1992	158.4 mm (6.2 in)
1993	248.6 mm (9.8 in)
1994	129.9 mm (5.1 in)
1995	158.3 mm (6.2 in)
1996	128.2 mm (5.0 in)
1997	144.6 mm (5.7 in)
1998	223.8 mm (8.8 in)
1999	0.0 mm (0.00 in)
2011	233.2 mm (9.2 in)
2012	117.6 mm (4.6 in)
2013	102.3 mm (4.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at El Refilion, 1969 to 2013. The record is 171 days in 1982, marked on the chart; the median year is 115 days.

Longest dry spell (CDD) at El Refilion by year
Year	Longest dry spell (CDD)
1969	122 days
1970	95 days
1971	135 days
1972	116 days
1973	76 days
1974	146 days
1975	135 days
1976	161 days
1977	71 days
1978	67 days
1979	115 days
1980	77 days
1981	101 days
1982	171 days
1983	73 days
1984	118 days
1985	133 days
1986	114 days
1987	79 days
1988	104 days
1989	165 days
1990	80 days
1991	167 days
1992	60 days
1993	143 days
1994	86 days
1995	162 days
1996	151 days
1997	47 days
1998	112 days
1999	92 days
2011	122 days
2012	99 days
2013	157 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, 1969 to 2012

A day with at least 75.7 mm (3.0 in) of rain is expected about once in 2 years. A day with at least 186.9 mm (7.4 in) of rain is expected about once in 100 years.

Rainfall return levels at El Refilion: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	75.7 mm (3.0 in)
5 years	99.4 mm (3.9 in)
10 years	117.3 mm (4.6 in)
25 years	142.7 mm (5.6 in)
50 years	163.8 mm (6.4 in)	Longer than the 30 years of record
100 years	186.9 mm (7.4 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 1969 to 2012.

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: 156.7 mm (6.2 in) in 1998; 149.4 mm (5.9 in) in 1971; 129.8 mm (5.1 in) in 1974.

Download the Data

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