Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at El Mayor. 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 Mayor, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
32.8 C (91.0 F)
-8.3 C (17.1 F)
n/a
n/a
Feb
37.8 C (100.0 F)
-2.2 C (28.0 F)
n/a
n/a
Mar
40.0 C (104.0 F)
0.0 C (32.0 F)
n/a
n/a
Apr
42.8 C (109.0 F)
0.6 C (33.1 F)
n/a
n/a
May
50.0 C (122.0 F)
0.6 C (33.1 F)
n/a
n/a
Jun
50.0 C (122.0 F)
5.6 C (42.1 F)
n/a
n/a
Jul
50.6 C (123.1 F)
7.8 C (46.0 F)
n/a
n/a
Aug
50.0 C (122.0 F)
8.9 C (48.0 F)
n/a
n/a
Sep
50.0 C (122.0 F)
7.8 C (46.0 F)
n/a
n/a
Oct
48.9 C (120.0 F)
1.7 C (35.1 F)
n/a
n/a
Nov
43.9 C (111.0 F)
0.0 C (32.0 F)
n/a
n/a
Dec
32.8 C (91.0 F)
-5.0 C (23.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at El Mayor still stand. 1998 holds the most, with 128.
Standing records at El Mayor by the year they were set
Year set
Standing records
1969
54
1970
45
1971
62
1972
58
1973
21
1974
2
1975
22
1976
17
1982
75
1983
28
1984
4
1985
45
1986
48
1987
45
1988
22
1989
40
1990
39
1991
30
1992
4
1995
9
1996
50
1997
49
1998
128
1999
103
2000
93
2001
54
2002
36
2003
68
2004
20
2005
24
2006
36
2007
26
2008
25
2009
34
2010
23
2011
17
2012
8
Wettest Day of Each Month
Oct: 137.9 mm (5.4 in)
The wettest day on record for each calendar month at El Mayor. The most was 137.9 mm (5.4 in) on 5 October 1972.
Record daily precipitation for each month at El Mayor
Month
Record daily precipitation (mm)
Date
Jan
57.9 mm (2.3 in)
20 January 2010
Feb
30.0 mm (1.2 in)
2 February 1983
Mar
31.0 mm (1.2 in)
27 March 1992
Apr
18.3 mm (0.7 in)
15 April 1988
May
0.0 mm (0.00 in)
1 May 1969
Jun
3.8 mm (0.15 in)
6 June 1997
Jul
29.0 mm (1.1 in)
5 July 2001
Aug
31.8 mm (1.3 in)
16 August 1983
Sep
68.3 mm (2.7 in)
22 September 1997
Oct
137.9 mm (5.4 in)
5 October 1972
Nov
41.9 mm (1.6 in)
9 November 1969
Dec
43.9 mm (1.7 in)
8 December 1982
Period of Record Coverage
1969 to 2012
Complete yearUnder 90 percent of days
37 years of record at El Mayor, 1969 to 2012. 14 years have data for under 90 percent of days and are left out of rankings: 1974, 1975, 1976, 1983, 1984, 1990, 1992, 1995 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 20 complete years at El Mayor, 1969 to 2011. Blue stripes are years cooler than the station's own mean of 21.2 C (70.2 F); red stripes are warmer. The coolest year was 2000, at 18.8 C (65.9 F), and the warmest was 1988, at 23.4 C (74.1 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at El Mayor as warming stripes, 1969 to 2011
Year
Annual mean temperature
Difference from the station mean
1969
21.9 C
+0.66 C
1970
21.8 C
+0.61 C
1971
20.9 C
-0.35 C
1972
21.5 C
+0.29 C
1973
22.1 C
+0.84 C
1982
20.6 C
-0.65 C
1985
21.2 C
+0.01 C
1986
23.4 C
+2.16 C
1988
23.4 C
+2.16 C
1991
23.0 C
+1.73 C
2000
18.8 C
-2.39 C
2001
19.4 C
-1.84 C
2003
21.9 C
+0.68 C
2004
19.6 C
-1.63 C
2005
20.4 C
-0.84 C
2006
21.4 C
+0.16 C
2007
19.4 C
-1.79 C
2009
21.9 C
+0.66 C
2010
21.1 C
-0.08 C
2011
20.8 C
-0.41 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 2012
Yearly extremes at El Mayor: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
50.6 C (123.1 F)
2001
49.4 C (120.9 F)
37
Coldest night (TNn)
-8.3 C (17.1 F)
1972
0.6 C (33.1 F)
37
Wettest day (Rx1day)
137.9 mm (5.4 in)
1972
16.8 mm (0.7 in)
37
Wettest five days (Rx5day)
145.8 mm (5.7 in)
1972
17.6 mm (0.7 in)
37
Longest dry spell (CDD)
365 days
2009
129 days
37
Hottest day (TXx)
The hottest day of the year at El Mayor, 1969 to 2012. The record is 50.6 C (123.1 F) in 2001, marked on the chart; the median year is 49.4 C (120.9 F).
Hottest day (TXx) at El Mayor by year
Year
Hottest day (TXx)
1969
48.9 C (120.0 F)
1970
45.6 C (114.1 F)
1971
50.0 C (122.0 F)
1972
47.8 C (118.0 F)
1973
47.8 C (118.0 F)
1974
40.0 C (104.0 F)
1975
46.7 C (116.1 F)
1976
49.4 C (120.9 F)
1982
50.0 C (122.0 F)
1983
46.7 C (116.1 F)
1984
43.9 C (111.0 F)
1985
46.7 C (116.1 F)
1986
45.6 C (114.1 F)
1987
46.7 C (116.1 F)
1988
45.6 C (114.1 F)
1989
46.7 C (116.1 F)
1990
48.9 C (120.0 F)
1991
45.6 C (114.1 F)
1992
47.8 C (118.0 F)
1995
50.0 C (122.0 F)
1996
47.8 C (118.0 F)
1997
48.9 C (120.0 F)
1998
50.0 C (122.0 F)
1999
50.0 C (122.0 F)
2000
50.0 C (122.0 F)
2001
50.6 C (123.1 F)
2002
50.0 C (122.0 F)
2003
50.0 C (122.0 F)
2004
50.0 C (122.0 F)
2005
50.0 C (122.0 F)
2006
50.0 C (122.0 F)
2007
50.0 C (122.0 F)
2008
50.0 C (122.0 F)
2009
50.0 C (122.0 F)
2010
50.0 C (122.0 F)
2011
50.0 C (122.0 F)
2012
50.0 C (122.0 F)
Coldest night (TNn)
The coldest night of the year at El Mayor, 1969 to 2012. The record is -8.3 C (17.1 F) in 1972, marked on the chart; the median year is 0.6 C (33.1 F).
Coldest night (TNn) at El Mayor by year
Year
Coldest night (TNn)
1969
0.0 C (32.0 F)
1970
-3.3 C (26.1 F)
1971
-5.0 C (23.0 F)
1972
-8.3 C (17.1 F)
1973
-1.1 C (30.0 F)
1974
1.7 C (35.1 F)
1975
-3.3 C (26.1 F)
1976
-5.0 C (23.0 F)
1982
0.0 C (32.0 F)
1983
0.6 C (33.1 F)
1984
0.6 C (33.1 F)
1985
0.6 C (33.1 F)
1986
2.8 C (37.0 F)
1987
-2.2 C (28.0 F)
1988
-3.3 C (26.1 F)
1989
0.0 C (32.0 F)
1990
-4.4 C (24.1 F)
1991
0.0 C (32.0 F)
1992
8.9 C (48.0 F)
1995
6.7 C (44.1 F)
1996
1.7 C (35.1 F)
1997
1.7 C (35.1 F)
1998
0.6 C (33.1 F)
1999
0.0 C (32.0 F)
2000
0.6 C (33.1 F)
2001
0.6 C (33.1 F)
2002
1.7 C (35.1 F)
2003
0.6 C (33.1 F)
2004
0.0 C (32.0 F)
2005
1.7 C (35.1 F)
2006
0.6 C (33.1 F)
2007
0.0 C (32.0 F)
2008
0.6 C (33.1 F)
2009
0.6 C (33.1 F)
2010
0.6 C (33.1 F)
2011
1.7 C (35.1 F)
2012
1.7 C (35.1 F)
Wettest day (Rx1day)
The wettest day of the year at El Mayor, 1969 to 2012. The record is 137.9 mm (5.4 in) in 1972, marked on the chart; the median year is 16.8 mm (0.7 in).
Wettest day (Rx1day) at El Mayor by year
Year
Wettest day (Rx1day)
1969
41.9 mm (1.6 in)
1970
9.4 mm (0.37 in)
1971
29.0 mm (1.1 in)
1972
137.9 mm (5.4 in)
1973
8.9 mm (0.35 in)
1974
13.0 mm (0.5 in)
1975
5.8 mm (0.23 in)
1976
21.8 mm (0.9 in)
1982
43.9 mm (1.7 in)
1983
31.8 mm (1.3 in)
1984
18.8 mm (0.7 in)
1985
19.3 mm (0.8 in)
1986
10.2 mm (0.4 in)
1987
10.2 mm (0.4 in)
1988
18.3 mm (0.7 in)
1989
11.4 mm (0.4 in)
1990
2.8 mm (0.11 in)
1991
45.2 mm (1.8 in)
1992
31.0 mm (1.2 in)
1995
27.9 mm (1.1 in)
1996
14.0 mm (0.6 in)
1997
68.3 mm (2.7 in)
1998
24.9 mm (1.0 in)
1999
0.0 mm (0.00 in)
2000
8.9 mm (0.35 in)
2001
29.0 mm (1.1 in)
2002
7.9 mm (0.31 in)
2003
9.9 mm (0.39 in)
2004
21.8 mm (0.9 in)
2005
15.0 mm (0.6 in)
2006
9.9 mm (0.39 in)
2007
15.7 mm (0.6 in)
2008
39.9 mm (1.6 in)
2009
0.0 mm (0.00 in)
2010
57.9 mm (2.3 in)
2011
4.8 mm (0.19 in)
2012
16.8 mm (0.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at El Mayor, 1969 to 2012. The record is 145.8 mm (5.7 in) in 1972, marked on the chart; the median year is 17.6 mm (0.7 in).
Wettest five days (Rx5day) at El Mayor by year
Year
Wettest five days (Rx5day)
1969
46.2 mm (1.8 in)
1970
9.4 mm (0.37 in)
1971
29.0 mm (1.1 in)
1972
145.8 mm (5.7 in)
1973
10.7 mm (0.4 in)
1974
13.8 mm (0.5 in)
1975
7.6 mm (0.30 in)
1976
25.6 mm (1.0 in)
1982
73.9 mm (2.9 in)
1983
72.7 mm (2.9 in)
1984
24.6 mm (1.0 in)
1985
19.6 mm (0.8 in)
1986
10.2 mm (0.4 in)
1987
17.6 mm (0.7 in)
1988
19.1 mm (0.8 in)
1989
11.4 mm (0.4 in)
1990
2.8 mm (0.11 in)
1991
48.2 mm (1.9 in)
1992
55.9 mm (2.2 in)
1995
27.9 mm (1.1 in)
1996
14.0 mm (0.6 in)
1997
68.3 mm (2.7 in)
1998
24.9 mm (1.0 in)
1999
0.0 mm (0.00 in)
2000
8.9 mm (0.35 in)
2001
29.0 mm (1.1 in)
2002
7.9 mm (0.31 in)
2003
9.9 mm (0.39 in)
2004
21.8 mm (0.9 in)
2005
15.0 mm (0.6 in)
2006
9.9 mm (0.39 in)
2007
15.7 mm (0.6 in)
2008
42.7 mm (1.7 in)
2009
0.0 mm (0.00 in)
2010
69.8 mm (2.7 in)
2011
4.8 mm (0.19 in)
2012
16.8 mm (0.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at El Mayor, 1969 to 2012. The record is 365 days in 2009, marked on the chart; the median year is 129 days.
Longest dry spell (CDD) at El Mayor by year
Year
Longest dry spell (CDD)
1969
233 days
1970
97 days
1971
79 days
1972
127 days
1973
158 days
1974
85 days
1975
159 days
1976
61 days
1982
136 days
1983
99 days
1984
56 days
1985
208 days
1986
160 days
1987
99 days
1988
90 days
1989
142 days
1990
92 days
1991
129 days
1992
25 days
1995
68 days
1996
109 days
1997
91 days
1998
41 days
1999
74 days
2000
211 days
2001
121 days
2002
247 days
2003
114 days
2004
200 days
2005
150 days
2006
161 days
2007
239 days
2008
149 days
2009
365 days
2010
211 days
2011
163 days
2012
229 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 El Mayor standing records by year: CSV or JSON. Field meanings are on the data page.
Data for El Mayor 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.