Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Singuilucan. 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 Singuilucan, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
27.2 C (81.0 F)
-6.1 C (21.0 F)
n/a
n/a
Feb
28.9 C (84.0 F)
-8.3 C (17.1 F)
n/a
n/a
Mar
32.2 C (90.0 F)
-6.1 C (21.0 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-3.3 C (26.1 F)
n/a
n/a
May
32.8 C (91.0 F)
1.7 C (35.1 F)
n/a
n/a
Jun
30.6 C (87.1 F)
0.0 C (32.0 F)
n/a
n/a
Jul
26.7 C (80.1 F)
1.7 C (35.1 F)
n/a
n/a
Aug
26.7 C (80.1 F)
0.6 C (33.1 F)
n/a
n/a
Sep
26.7 C (80.1 F)
-1.1 C (30.0 F)
n/a
n/a
Oct
29.4 C (84.9 F)
-3.3 C (26.1 F)
n/a
n/a
Nov
27.8 C (82.0 F)
-5.0 C (23.0 F)
n/a
n/a
Dec
26.7 C (80.1 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 Singuilucan still stand. 1998 holds the most, with 69.
Standing records at Singuilucan by the year they were set
Year set
Standing records
1965
33
1966
68
1967
50
1968
33
1969
48
1970
35
1971
40
1972
42
1973
51
1974
48
1975
29
1976
36
1977
53
1978
37
1979
42
1980
23
1981
19
1982
27
1983
49
1984
40
1985
19
1986
30
1987
46
1988
32
1989
23
1990
28
1991
29
1995
22
1996
23
1997
30
1998
69
1999
32
2000
22
2005
27
2006
27
2007
33
2008
32
2009
29
2010
41
2011
44
2012
23
All-Time Record Progression
2 new records
2 all-time records were set at Singuilucan between 12 February 1999 and 21 May 2010. Each dot is a new record.
When Singuilucan set new all-time records
Date
Kind
Detail
1999-02-12
Record low maximum temperature
Record low maximum temperature 5.0 C (41.0 F)
2010-05-21
Record high minimum temperature
Record high minimum temperature 13.9 C (57.0 F)
Wettest Day of Each Month
Sep: 111.0 mm (4.4 in)
The wettest day on record for each calendar month at Singuilucan. The most was 111.0 mm (4.4 in) on 20 September 1974.
Record daily precipitation for each month at Singuilucan
Month
Record daily precipitation (mm)
Date
Jan
25.9 mm (1.0 in)
25 January 1980
Feb
57.9 mm (2.3 in)
3 February 2007
Mar
57.9 mm (2.3 in)
4 March 1988
Apr
55.4 mm (2.2 in)
9 April 1978
May
56.9 mm (2.2 in)
3 May 1980
Jun
96.8 mm (3.8 in)
30 June 2011
Jul
53.8 mm (2.1 in)
26 July 2008
Aug
108.0 mm (4.3 in)
22 August 2007
Sep
111.0 mm (4.4 in)
20 September 1974
Oct
95.8 mm (3.8 in)
4 October 1999
Nov
29.0 mm (1.1 in)
15 November 1961
Dec
19.3 mm (0.8 in)
7 December 1989
Period of Record Coverage
1965 to 2012
Complete yearUnder 90 percent of days
41 years of record at Singuilucan, 1965 to 2012. 8 years have data for under 90 percent of days and are left out of rankings: 1965, 1967, 1968, 1995, 2006, 2009, 2010, 2012.
Cooler than the station meanWarmer than the station mean
One stripe for each of 29 complete years at Singuilucan, 1966 to 2011. Blue stripes are years cooler than the station's own mean of 13.8 C (56.8 F); red stripes are warmer. The coolest year was 1966, at 12.9 C (55.3 F), and the warmest was 1998, at 14.8 C (58.6 F). The strongest colour marks a difference of 1.0 C (1.8 F).
Annual mean temperature at Singuilucan as warming stripes, 1966 to 2011
Year
Annual mean temperature
Difference from the station mean
1966
12.9 C
-0.87 C
1969
14.0 C
+0.16 C
1970
13.6 C
-0.23 C
1971
13.4 C
-0.37 C
1972
13.9 C
+0.11 C
1973
14.2 C
+0.43 C
1974
13.4 C
-0.40 C
1976
13.3 C
-0.47 C
1977
13.9 C
+0.15 C
1978
13.8 C
+0.02 C
1979
13.7 C
-0.05 C
1980
13.9 C
+0.11 C
1981
13.6 C
-0.18 C
1982
14.2 C
+0.44 C
1983
14.0 C
+0.18 C
1984
13.5 C
-0.33 C
1985
13.5 C
-0.30 C
1986
13.5 C
-0.29 C
1987
13.9 C
+0.14 C
1988
13.8 C
+0.01 C
1990
13.6 C
-0.16 C
1997
13.9 C
+0.13 C
1998
14.8 C
+0.97 C
1999
13.3 C
-0.47 C
2000
13.7 C
-0.09 C
2005
14.3 C
+0.52 C
2007
14.0 C
+0.18 C
2008
13.8 C
+0.02 C
2011
14.5 C
+0.67 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 2012
Yearly extremes at Singuilucan: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
32.8 C (91.0 F)
1973
30.0 C (86.0 F)
41
Coldest night (TNn)
-8.3 C (17.1 F)
1976
-3.3 C (26.1 F)
41
Wettest day (Rx1day)
111.0 mm (4.4 in)
1974
42.4 mm (1.7 in)
44
Wettest five days (Rx5day)
190.3 mm (7.5 in)
1974
72.0 mm (2.8 in)
44
Longest dry spell (CDD)
83 days
2005
44 days
44
Hottest day (TXx)
The hottest day of the year at Singuilucan, 1961 to 2012. The record is 32.8 C (91.0 F) in 1973, marked on the chart; the median year is 30.0 C (86.0 F).
Hottest day (TXx) at Singuilucan by year
Year
Hottest day (TXx)
1961
n/a
1962
n/a
1963
n/a
1965
29.4 C (84.9 F)
1966
30.0 C (86.0 F)
1967
30.6 C (87.1 F)
1968
28.9 C (84.0 F)
1969
30.0 C (86.0 F)
1970
30.6 C (87.1 F)
1971
30.6 C (87.1 F)
1972
30.0 C (86.0 F)
1973
32.8 C (91.0 F)
1974
30.0 C (86.0 F)
1975
31.7 C (89.1 F)
1976
27.8 C (82.0 F)
1977
30.0 C (86.0 F)
1978
30.6 C (87.1 F)
1979
30.0 C (86.0 F)
1980
29.4 C (84.9 F)
1981
28.9 C (84.0 F)
1982
30.0 C (86.0 F)
1983
31.7 C (89.1 F)
1984
30.6 C (87.1 F)
1985
28.9 C (84.0 F)
1986
30.0 C (86.0 F)
1987
29.4 C (84.9 F)
1988
30.6 C (87.1 F)
1989
30.0 C (86.0 F)
1990
30.0 C (86.0 F)
1991
31.1 C (88.0 F)
1995
31.7 C (89.1 F)
1996
29.4 C (84.9 F)
1997
28.9 C (84.0 F)
1998
32.8 C (91.0 F)
1999
30.0 C (86.0 F)
2000
30.0 C (86.0 F)
2005
30.6 C (87.1 F)
2006
30.0 C (86.0 F)
2007
29.4 C (84.9 F)
2008
30.0 C (86.0 F)
2009
30.6 C (87.1 F)
2010
31.1 C (88.0 F)
2011
32.2 C (90.0 F)
2012
28.9 C (84.0 F)
Coldest night (TNn)
The coldest night of the year at Singuilucan, 1961 to 2012. The record is -8.3 C (17.1 F) in 1976, marked on the chart; the median year is -3.3 C (26.1 F).
Coldest night (TNn) at Singuilucan by year
Year
Coldest night (TNn)
1961
n/a
1962
n/a
1963
n/a
1965
-1.1 C (30.0 F)
1966
-5.6 C (21.9 F)
1967
-2.2 C (28.0 F)
1968
-3.9 C (25.0 F)
1969
-2.2 C (28.0 F)
1970
-2.8 C (27.0 F)
1971
-3.3 C (26.1 F)
1972
-5.0 C (23.0 F)
1973
-3.9 C (25.0 F)
1974
-4.4 C (24.1 F)
1975
-3.9 C (25.0 F)
1976
-8.3 C (17.1 F)
1977
-4.4 C (24.1 F)
1978
-3.3 C (26.1 F)
1979
-1.1 C (30.0 F)
1980
-1.1 C (30.0 F)
1981
-2.2 C (28.0 F)
1982
-1.7 C (28.9 F)
1983
-3.3 C (26.1 F)
1984
-3.9 C (25.0 F)
1985
-3.9 C (25.0 F)
1986
-5.0 C (23.0 F)
1987
-6.1 C (21.0 F)
1988
-6.1 C (21.0 F)
1989
-5.0 C (23.0 F)
1990
-2.2 C (28.0 F)
1991
0.0 C (32.0 F)
1995
-1.1 C (30.0 F)
1996
-5.0 C (23.0 F)
1997
-5.0 C (23.0 F)
1998
-3.3 C (26.1 F)
1999
-5.0 C (23.0 F)
2000
-3.3 C (26.1 F)
2005
-1.1 C (30.0 F)
2006
-4.4 C (24.1 F)
2007
-2.2 C (28.0 F)
2008
-3.3 C (26.1 F)
2009
-0.6 C (30.9 F)
2010
-1.1 C (30.0 F)
2011
-4.4 C (24.1 F)
2012
0.0 C (32.0 F)
Wettest day (Rx1day)
The wettest day of the year at Singuilucan, 1961 to 2012. The record is 111.0 mm (4.4 in) in 1974, marked on the chart; the median year is 42.4 mm (1.7 in).
Wettest day (Rx1day) at Singuilucan by year
Year
Wettest day (Rx1day)
1961
29.0 mm (1.1 in)
1962
46.0 mm (1.8 in)
1963
31.0 mm (1.2 in)
1965
24.4 mm (1.0 in)
1966
31.8 mm (1.3 in)
1967
39.4 mm (1.6 in)
1968
25.9 mm (1.0 in)
1969
47.8 mm (1.9 in)
1970
31.8 mm (1.3 in)
1971
24.4 mm (1.0 in)
1972
27.9 mm (1.1 in)
1973
43.9 mm (1.7 in)
1974
111.0 mm (4.4 in)
1975
54.9 mm (2.2 in)
1976
50.8 mm (2.0 in)
1977
16.5 mm (0.6 in)
1978
55.4 mm (2.2 in)
1979
63.8 mm (2.5 in)
1980
56.9 mm (2.2 in)
1981
37.8 mm (1.5 in)
1982
43.9 mm (1.7 in)
1983
31.8 mm (1.3 in)
1984
36.8 mm (1.4 in)
1985
34.3 mm (1.4 in)
1986
26.9 mm (1.1 in)
1987
21.8 mm (0.9 in)
1988
66.8 mm (2.6 in)
1989
35.3 mm (1.4 in)
1990
72.9 mm (2.9 in)
1991
40.9 mm (1.6 in)
1995
23.9 mm (0.9 in)
1996
48.3 mm (1.9 in)
1997
39.9 mm (1.6 in)
1998
52.8 mm (2.1 in)
1999
95.8 mm (3.8 in)
2000
27.4 mm (1.1 in)
2005
93.0 mm (3.7 in)
2006
24.4 mm (1.0 in)
2007
108.0 mm (4.3 in)
2008
53.8 mm (2.1 in)
2009
45.5 mm (1.8 in)
2010
50.3 mm (2.0 in)
2011
96.8 mm (3.8 in)
2012
85.9 mm (3.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Singuilucan, 1961 to 2012. The record is 190.3 mm (7.5 in) in 1974, marked on the chart; the median year is 72.0 mm (2.8 in).
Wettest five days (Rx5day) at Singuilucan by year
Year
Wettest five days (Rx5day)
1961
48.3 mm (1.9 in)
1962
102.6 mm (4.0 in)
1963
61.3 mm (2.4 in)
1965
43.9 mm (1.7 in)
1966
54.8 mm (2.2 in)
1967
64.2 mm (2.5 in)
1968
72.7 mm (2.9 in)
1969
60.5 mm (2.4 in)
1970
72.1 mm (2.8 in)
1971
62.0 mm (2.4 in)
1972
54.4 mm (2.1 in)
1973
92.9 mm (3.7 in)
1974
190.3 mm (7.5 in)
1975
78.2 mm (3.1 in)
1976
90.7 mm (3.6 in)
1977
41.0 mm (1.6 in)
1978
87.2 mm (3.4 in)
1979
85.9 mm (3.4 in)
1980
69.4 mm (2.7 in)
1981
78.3 mm (3.1 in)
1982
63.5 mm (2.5 in)
1983
53.2 mm (2.1 in)
1984
80.3 mm (3.2 in)
1985
67.1 mm (2.6 in)
1986
66.5 mm (2.6 in)
1987
45.0 mm (1.8 in)
1988
136.2 mm (5.4 in)
1989
119.2 mm (4.7 in)
1990
99.6 mm (3.9 in)
1991
71.9 mm (2.8 in)
1995
39.3 mm (1.5 in)
1996
68.0 mm (2.7 in)
1997
74.2 mm (2.9 in)
1998
70.3 mm (2.8 in)
1999
124.7 mm (4.9 in)
2000
63.6 mm (2.5 in)
2005
179.1 mm (7.1 in)
2006
55.3 mm (2.2 in)
2007
129.1 mm (5.1 in)
2008
72.4 mm (2.9 in)
2009
68.8 mm (2.7 in)
2010
110.9 mm (4.4 in)
2011
183.9 mm (7.2 in)
2012
103.0 mm (4.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Singuilucan, 1961 to 2012. The record is 83 days in 2005, marked on the chart; the median year is 44 days.
Longest dry spell (CDD) at Singuilucan by year
Year
Longest dry spell (CDD)
1961
60 days
1962
43 days
1963
58 days
1965
39 days
1966
26 days
1967
42 days
1968
32 days
1969
42 days
1970
76 days
1971
57 days
1972
31 days
1973
77 days
1974
35 days
1975
49 days
1976
50 days
1977
80 days
1978
28 days
1979
32 days
1980
34 days
1981
32 days
1982
55 days
1983
56 days
1984
63 days
1985
60 days
1986
53 days
1987
43 days
1988
37 days
1989
45 days
1990
26 days
1991
28 days
1995
26 days
1996
41 days
1997
63 days
1998
81 days
1999
68 days
2000
45 days
2005
83 days
2006
40 days
2007
27 days
2008
58 days
2009
27 days
2010
48 days
2011
56 days
2012
31 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
28 years with a frost
Across 28 years with a frost, the median last spring frost at Singuilucan falls on 4 March and the median first autumn frost on 4 November, which leaves a median of 241 days between them.
Fitted over all years, the growing season changes by +2.1 days per decade at this station.
Frost dates and growing season at Singuilucan
Measure
Median, all years
Earliest period
Recent period (1966 to 2011)
Recent against earliest
Fitted trend
Last spring frost
4 March
n/a
4 March
n/a
-2.7 days per decade
First autumn frost
4 November
n/a
4 November
n/a
-0.6 days per decade
Growing days
241 days
n/a
241 days
n/a
+2.1 days per decade
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.
Rainfall Return Levels
37 years, 1961 to 2011
A day with at least 42.1 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 149.1 mm (5.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Singuilucan: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
42.1 mm (1.7 in)
5 years
63.5 mm (2.5 in)
10 years
80.2 mm (3.2 in)
25 years
104.7 mm (4.1 in)
50 years
125.6 mm (4.9 in)
Longer than the 37 years of record
100 years
149.1 mm (5.9 in)
Longer than the 37 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, 37 years of values from 1961 to 2011.
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: 111.0 mm (4.4 in) in 1974; 108.0 mm (4.3 in) in 2007; 96.8 mm (3.8 in) in 2011.
Download the Data
Data for Singuilucan standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Singuilucan 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.