Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Tlaxco. 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 Tlaxco, 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)
-9.4 C (15.1 F)
n/a
n/a
Feb
32.8 C (91.0 F)
-9.4 C (15.1 F)
n/a
n/a
Mar
35.0 C (95.0 F)
-6.1 C (21.0 F)
n/a
n/a
Apr
35.6 C (96.1 F)
-6.1 C (21.0 F)
n/a
n/a
May
37.2 C (99.0 F)
-2.2 C (28.0 F)
n/a
n/a
Jun
35.0 C (95.0 F)
-1.1 C (30.0 F)
n/a
n/a
Jul
30.0 C (86.0 F)
-1.1 C (30.0 F)
n/a
n/a
Aug
30.6 C (87.1 F)
-2.2 C (28.0 F)
n/a
n/a
Sep
28.9 C (84.0 F)
-4.4 C (24.1 F)
n/a
n/a
Oct
30.0 C (86.0 F)
-8.3 C (17.1 F)
n/a
n/a
Nov
30.0 C (86.0 F)
-9.4 C (15.1 F)
n/a
n/a
Dec
30.6 C (87.1 F)
-8.3 C (17.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Tlaxco still stand. 1948 holds the most, with 122.
Standing records at Tlaxco by the year they were set
Year set
Standing records
1943
25
1944
55
1945
21
1946
39
1947
85
1948
122
1949
52
1950
25
1951
33
1952
37
1953
18
1954
21
1955
24
1956
25
1957
14
1958
20
1959
16
1960
18
1961
26
1962
11
1963
7
1964
14
1965
16
1966
16
1967
21
1968
23
1969
12
1970
20
1971
19
1972
20
1973
21
1974
28
1975
15
1976
17
1977
12
1978
12
1979
27
1980
9
1981
20
1982
5
1983
21
1984
8
1985
22
1987
22
1988
20
1989
14
1990
12
1991
16
1992
25
1993
11
1994
15
1995
29
1996
24
1997
18
1998
81
1999
14
2000
19
2001
12
2002
11
2003
12
2004
15
2005
22
All-Time Record Progression
4 new records
4 all-time records were set at Tlaxco between 17 January 1976 and 8 May 1998. Each dot is a new record.
When Tlaxco set new all-time records
Date
Kind
Detail
1976-01-17
Record low maximum temperature
Record low maximum temperature 6.1 C (43.0 F)
1987-06-23
Record high minimum temperature
Record high minimum temperature 16.7 C (62.1 F)
1991-04-22
Record high maximum temperature
Record high maximum temperature 35.6 C (96.1 F)
1998-05-08
Record high maximum temperature
Record high maximum temperature 37.2 C (99.0 F)
Wettest Day of Each Month
Sep: 106.4 mm (4.2 in)
The wettest day on record for each calendar month at Tlaxco. The most was 106.4 mm (4.2 in) on 29 September 1955.
Record daily precipitation for each month at Tlaxco
Month
Record daily precipitation (mm)
Date
Jan
29.0 mm (1.1 in)
1 January 1958
Feb
30.0 mm (1.2 in)
4 February 1975
Mar
31.2 mm (1.2 in)
30 March 2004
Apr
51.8 mm (2.0 in)
15 April 1991
May
65.3 mm (2.6 in)
30 May 1964
Jun
96.8 mm (3.8 in)
23 June 1997
Jul
65.8 mm (2.6 in)
19 July 1960
Aug
62.5 mm (2.5 in)
4 August 2004
Sep
106.4 mm (4.2 in)
29 September 1955
Oct
103.9 mm (4.1 in)
5 October 1999
Nov
28.4 mm (1.1 in)
27 November 2000
Dec
30.0 mm (1.2 in)
30 December 1995
Period of Record Coverage
1943 to 2005
Complete yearUnder 90 percent of days
62 years of record at Tlaxco, 1943 to 2005. 8 years have data for under 90 percent of days and are left out of rankings: 1943, 1944, 1958, 1964, 1965, 1966, 1969, 1977.
Cooler than the station meanWarmer than the station mean
One stripe for each of 49 complete years at Tlaxco, 1945 to 2005. Blue stripes are years cooler than the station's own mean of 14.1 C (57.4 F); red stripes are warmer. The coolest year was 1956, at 12.6 C (54.7 F), and the warmest was 1998, at 16.2 C (61.2 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Tlaxco as warming stripes, 1945 to 2005
Year
Annual mean temperature
Difference from the station mean
1945
14.3 C
+0.19 C
1946
14.1 C
-0.01 C
1947
14.3 C
+0.24 C
1948
13.7 C
-0.41 C
1949
13.3 C
-0.79 C
1950
13.3 C
-0.77 C
1951
13.8 C
-0.33 C
1952
13.8 C
-0.32 C
1953
13.7 C
-0.39 C
1954
13.1 C
-0.97 C
1955
13.2 C
-0.87 C
1956
12.6 C
-1.47 C
1957
13.6 C
-0.54 C
1959
13.5 C
-0.56 C
1960
13.4 C
-0.65 C
1962
13.7 C
-0.41 C
1967
13.0 C
-1.11 C
1968
12.8 C
-1.27 C
1970
13.5 C
-0.59 C
1971
13.1 C
-0.99 C
1972
13.2 C
-0.88 C
1973
13.7 C
-0.40 C
1974
12.9 C
-1.22 C
1975
13.0 C
-1.08 C
1978
13.2 C
-0.88 C
1979
13.2 C
-0.93 C
1980
13.3 C
-0.78 C
1981
13.1 C
-0.95 C
1982
14.8 C
+0.75 C
1983
14.7 C
+0.59 C
1984
14.5 C
+0.43 C
1988
14.7 C
+0.63 C
1989
14.6 C
+0.55 C
1990
14.8 C
+0.72 C
1991
15.2 C
+1.13 C
1992
14.8 C
+0.68 C
1993
15.1 C
+1.05 C
1994
15.5 C
+1.42 C
1995
15.6 C
+1.50 C
1996
15.0 C
+0.90 C
1997
15.1 C
+0.98 C
1998
16.2 C
+2.13 C
1999
14.6 C
+0.55 C
2000
14.8 C
+0.73 C
2001
14.5 C
+0.45 C
2002
14.9 C
+0.77 C
2003
15.0 C
+0.94 C
2004
15.0 C
+0.88 C
2005
15.6 C
+1.52 C
The annual mean temperature here has risen by 0.3 C (0.2 to 0.4) per decade over 1945 to 2005. In Fahrenheit: 0.6 F (0.4 to 0.8) per decade. The slope is a straight line fitted to 49 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Tlaxco
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.3 C (0.2 to 0.4) per decade
0.6 F (0.4 to 0.8) per decade
1945 to 2005
49
Rise
Mean daily maximum
0.4 C (0.2 to 0.6) per decade
0.7 F (0.3 to 1.1) per decade
1945 to 2005
49
Rise
Mean daily minimum
0.3 C (0.2 to 0.4) per decade
0.5 F (0.3 to 0.7) per decade
1945 to 2005
49
Rise
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
1943 to 2005
Yearly extremes at Tlaxco: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
37.2 C (99.0 F)
1998
30.6 C (87.1 F)
62
Coldest night (TNn)
-9.4 C (15.1 F)
1953
-5.3 C (22.5 F)
62
Wettest day (Rx1day)
106.4 mm (4.2 in)
1955
42.8 mm (1.7 in)
62
Wettest five days (Rx5day)
215.0 mm (8.5 in)
1999
75.2 mm (3.0 in)
62
Longest dry spell (CDD)
98 days
1959
48 days
62
Hottest day (TXx)
The hottest day of the year at Tlaxco, 1943 to 2005. The record is 37.2 C (99.0 F) in 1998, marked on the chart; the median year is 30.6 C (87.1 F).
Hottest day (TXx) at Tlaxco by year
Year
Hottest day (TXx)
1943
23.9 C (75.0 F)
1944
30.6 C (87.1 F)
1945
30.0 C (86.0 F)
1946
30.6 C (87.1 F)
1947
35.0 C (95.0 F)
1948
35.0 C (95.0 F)
1949
28.9 C (84.0 F)
1950
28.9 C (84.0 F)
1951
27.8 C (82.0 F)
1952
30.0 C (86.0 F)
1953
32.8 C (91.0 F)
1954
30.6 C (87.1 F)
1955
30.6 C (87.1 F)
1956
30.0 C (86.0 F)
1957
30.0 C (86.0 F)
1958
30.0 C (86.0 F)
1959
30.0 C (86.0 F)
1960
30.6 C (87.1 F)
1961
32.8 C (91.0 F)
1962
30.0 C (86.0 F)
1963
30.6 C (87.1 F)
1964
31.1 C (88.0 F)
1965
35.0 C (95.0 F)
1966
25.6 C (78.1 F)
1967
30.0 C (86.0 F)
1968
27.8 C (82.0 F)
1969
30.0 C (86.0 F)
1970
31.7 C (89.1 F)
1971
33.3 C (91.9 F)
1972
28.9 C (84.0 F)
1973
31.7 C (89.1 F)
1974
30.0 C (86.0 F)
1975
30.0 C (86.0 F)
1976
27.8 C (82.0 F)
1977
29.4 C (84.9 F)
1978
30.6 C (87.1 F)
1979
29.4 C (84.9 F)
1980
30.0 C (86.0 F)
1981
28.3 C (82.9 F)
1982
30.0 C (86.0 F)
1983
32.2 C (90.0 F)
1984
32.2 C (90.0 F)
1985
31.7 C (89.1 F)
1987
30.0 C (86.0 F)
1988
31.7 C (89.1 F)
1989
32.8 C (91.0 F)
1990
31.1 C (88.0 F)
1991
35.6 C (96.1 F)
1992
29.4 C (84.9 F)
1993
30.6 C (87.1 F)
1994
32.2 C (90.0 F)
1995
32.8 C (91.0 F)
1996
31.7 C (89.1 F)
1997
32.2 C (90.0 F)
1998
37.2 C (99.0 F)
1999
34.4 C (93.9 F)
2000
34.4 C (93.9 F)
2001
33.9 C (93.0 F)
2002
33.9 C (93.0 F)
2003
33.3 C (91.9 F)
2004
30.6 C (87.1 F)
2005
33.3 C (91.9 F)
Coldest night (TNn)
The coldest night of the year at Tlaxco, 1943 to 2005. The record is -9.4 C (15.1 F) in 1953, marked on the chart; the median year is -5.3 C (22.5 F).
Coldest night (TNn) at Tlaxco by year
Year
Coldest night (TNn)
1943
1.7 C (35.1 F)
1944
-1.1 C (30.0 F)
1945
-5.0 C (23.0 F)
1946
-6.1 C (21.0 F)
1947
-5.0 C (23.0 F)
1948
-6.1 C (21.0 F)
1949
-8.3 C (17.1 F)
1950
-7.2 C (19.0 F)
1951
-6.1 C (21.0 F)
1952
-8.3 C (17.1 F)
1953
-9.4 C (15.1 F)
1954
-8.3 C (17.1 F)
1955
-8.3 C (17.1 F)
1956
-8.3 C (17.1 F)
1957
-6.1 C (21.0 F)
1958
-2.2 C (28.0 F)
1959
-5.0 C (23.0 F)
1960
-8.3 C (17.1 F)
1961
0.0 C (32.0 F)
1962
-5.0 C (23.0 F)
1963
0.0 C (32.0 F)
1964
-3.9 C (25.0 F)
1965
-6.7 C (19.9 F)
1966
-4.4 C (24.1 F)
1967
-7.2 C (19.0 F)
1968
-7.2 C (19.0 F)
1969
-5.0 C (23.0 F)
1970
-8.3 C (17.1 F)
1971
-6.1 C (21.0 F)
1972
-9.4 C (15.1 F)
1973
-7.2 C (19.0 F)
1974
-4.4 C (24.1 F)
1975
-6.1 C (21.0 F)
1976
-7.2 C (19.0 F)
1977
-7.2 C (19.0 F)
1978
-5.6 C (21.9 F)
1979
-5.0 C (23.0 F)
1980
-5.6 C (21.9 F)
1981
-4.4 C (24.1 F)
1982
-4.4 C (24.1 F)
1983
-5.0 C (23.0 F)
1984
-5.0 C (23.0 F)
1985
-3.3 C (26.1 F)
1987
-6.1 C (21.0 F)
1988
-7.2 C (19.0 F)
1989
-5.0 C (23.0 F)
1990
-5.0 C (23.0 F)
1991
-1.7 C (28.9 F)
1992
-2.8 C (27.0 F)
1993
-5.0 C (23.0 F)
1994
0.0 C (32.0 F)
1995
-5.0 C (23.0 F)
1996
-9.4 C (15.1 F)
1997
-5.6 C (21.9 F)
1998
-4.4 C (24.1 F)
1999
-5.0 C (23.0 F)
2000
-6.1 C (21.0 F)
2001
-3.3 C (26.1 F)
2002
-5.0 C (23.0 F)
2003
-5.6 C (21.9 F)
2004
-6.1 C (21.0 F)
2005
-5.0 C (23.0 F)
Wettest day (Rx1day)
The wettest day of the year at Tlaxco, 1943 to 2005. The record is 106.4 mm (4.2 in) in 1955, marked on the chart; the median year is 42.8 mm (1.7 in).
Wettest day (Rx1day) at Tlaxco by year
Year
Wettest day (Rx1day)
1943
6.9 mm (0.27 in)
1944
83.8 mm (3.3 in)
1945
30.0 mm (1.2 in)
1946
29.5 mm (1.2 in)
1947
55.4 mm (2.2 in)
1948
35.3 mm (1.4 in)
1949
30.0 mm (1.2 in)
1950
34.5 mm (1.4 in)
1951
34.3 mm (1.4 in)
1952
37.3 mm (1.5 in)
1953
51.8 mm (2.0 in)
1954
57.9 mm (2.3 in)
1955
106.4 mm (4.2 in)
1956
39.9 mm (1.6 in)
1957
40.9 mm (1.6 in)
1958
45.5 mm (1.8 in)
1959
62.0 mm (2.4 in)
1960
65.8 mm (2.6 in)
1961
47.5 mm (1.9 in)
1962
38.4 mm (1.5 in)
1963
30.0 mm (1.2 in)
1964
65.3 mm (2.6 in)
1965
29.7 mm (1.2 in)
1966
42.7 mm (1.7 in)
1967
56.1 mm (2.2 in)
1968
40.6 mm (1.6 in)
1969
33.3 mm (1.3 in)
1970
40.4 mm (1.6 in)
1971
32.0 mm (1.3 in)
1972
20.8 mm (0.8 in)
1973
45.0 mm (1.8 in)
1974
74.2 mm (2.9 in)
1975
33.8 mm (1.3 in)
1976
50.0 mm (2.0 in)
1977
43.7 mm (1.7 in)
1978
73.2 mm (2.9 in)
1979
49.5 mm (1.9 in)
1980
50.0 mm (2.0 in)
1981
25.9 mm (1.0 in)
1982
39.9 mm (1.6 in)
1983
42.9 mm (1.7 in)
1984
32.8 mm (1.3 in)
1985
43.9 mm (1.7 in)
1987
29.7 mm (1.2 in)
1988
44.5 mm (1.8 in)
1989
30.0 mm (1.2 in)
1990
26.9 mm (1.1 in)
1991
59.2 mm (2.3 in)
1992
24.9 mm (1.0 in)
1993
23.9 mm (0.9 in)
1994
23.4 mm (0.9 in)
1995
40.1 mm (1.6 in)
1996
49.3 mm (1.9 in)
1997
96.8 mm (3.8 in)
1998
32.5 mm (1.3 in)
1999
103.9 mm (4.1 in)
2000
50.3 mm (2.0 in)
2001
58.9 mm (2.3 in)
2002
58.4 mm (2.3 in)
2003
86.9 mm (3.4 in)
2004
62.5 mm (2.5 in)
2005
48.8 mm (1.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Tlaxco, 1943 to 2005. The record is 215.0 mm (8.5 in) in 1999, marked on the chart; the median year is 75.2 mm (3.0 in).
Wettest five days (Rx5day) at Tlaxco by year
Year
Wettest five days (Rx5day)
1943
19.0 mm (0.7 in)
1944
162.1 mm (6.4 in)
1945
61.9 mm (2.4 in)
1946
72.6 mm (2.9 in)
1947
70.4 mm (2.8 in)
1948
62.6 mm (2.5 in)
1949
55.7 mm (2.2 in)
1950
47.2 mm (1.9 in)
1951
64.0 mm (2.5 in)
1952
54.3 mm (2.1 in)
1953
88.4 mm (3.5 in)
1954
127.8 mm (5.0 in)
1955
157.3 mm (6.2 in)
1956
91.8 mm (3.6 in)
1957
51.9 mm (2.0 in)
1958
85.6 mm (3.4 in)
1959
89.5 mm (3.5 in)
1960
97.1 mm (3.8 in)
1961
70.4 mm (2.8 in)
1962
92.0 mm (3.6 in)
1963
67.1 mm (2.6 in)
1964
96.2 mm (3.8 in)
1965
59.7 mm (2.4 in)
1966
61.0 mm (2.4 in)
1967
79.5 mm (3.1 in)
1968
101.5 mm (4.0 in)
1969
76.8 mm (3.0 in)
1970
56.2 mm (2.2 in)
1971
66.6 mm (2.6 in)
1972
56.2 mm (2.2 in)
1973
93.6 mm (3.7 in)
1974
179.1 mm (7.1 in)
1975
66.6 mm (2.6 in)
1976
81.8 mm (3.2 in)
1977
90.5 mm (3.6 in)
1978
119.1 mm (4.7 in)
1979
73.5 mm (2.9 in)
1980
105.4 mm (4.1 in)
1981
60.2 mm (2.4 in)
1982
66.1 mm (2.6 in)
1983
90.1 mm (3.5 in)
1984
79.2 mm (3.1 in)
1985
77.5 mm (3.1 in)
1987
59.1 mm (2.3 in)
1988
69.8 mm (2.7 in)
1989
47.8 mm (1.9 in)
1990
52.4 mm (2.1 in)
1991
71.4 mm (2.8 in)
1992
57.2 mm (2.3 in)
1993
66.1 mm (2.6 in)
1994
46.8 mm (1.8 in)
1995
107.9 mm (4.2 in)
1996
62.0 mm (2.4 in)
1997
143.5 mm (5.6 in)
1998
106.0 mm (4.2 in)
1999
215.0 mm (8.5 in)
2000
90.0 mm (3.5 in)
2001
80.8 mm (3.2 in)
2002
71.1 mm (2.8 in)
2003
177.9 mm (7.0 in)
2004
80.8 mm (3.2 in)
2005
104.6 mm (4.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Tlaxco, 1943 to 2005. The record is 98 days in 1959, marked on the chart; the median year is 48 days.
Longest dry spell (CDD) at Tlaxco by year
Year
Longest dry spell (CDD)
1943
16 days
1944
66 days
1945
51 days
1946
31 days
1947
30 days
1948
43 days
1949
82 days
1950
70 days
1951
70 days
1952
92 days
1953
35 days
1954
55 days
1955
48 days
1956
64 days
1957
46 days
1958
24 days
1959
98 days
1960
71 days
1961
98 days
1962
48 days
1963
34 days
1964
29 days
1965
32 days
1966
28 days
1967
46 days
1968
45 days
1969
58 days
1970
58 days
1971
44 days
1972
29 days
1973
76 days
1974
39 days
1975
79 days
1976
35 days
1977
48 days
1978
43 days
1979
34 days
1980
32 days
1981
34 days
1982
80 days
1983
55 days
1984
36 days
1985
59 days
1987
49 days
1988
83 days
1989
45 days
1990
41 days
1991
41 days
1992
46 days
1993
47 days
1994
63 days
1995
30 days
1996
54 days
1997
28 days
1998
92 days
1999
59 days
2000
64 days
2001
67 days
2002
46 days
2003
96 days
2004
59 days
2005
53 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
49 years with a frost
Across 49 years with a frost, the median last spring frost at Tlaxco falls on 21 March and the median first autumn frost on 28 October, which leaves a median of 226 days between them.
Fitted over all years, the growing season changes by +17.2 days per decade at this station.
Frost dates and growing season at Tlaxco
Measure
Median, all years
Earliest period
Recent period (1971 to 2005)
Recent against earliest
Fitted trend
Last spring frost
21 March
n/a
9 March
n/a
-9.1 days per decade
First autumn frost
28 October
n/a
4 November
n/a
+8.1 days per decade
Growing days
226 days
n/a
235 days
n/a
+17.2 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
54 years, 1945 to 2005
A day with at least 42.2 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 120.3 mm (4.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Tlaxco: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
42.2 mm (1.7 in)
5 years
59.1 mm (2.3 in)
10 years
71.7 mm (2.8 in)
25 years
89.5 mm (3.5 in)
50 years
104.3 mm (4.1 in)
100 years
120.3 mm (4.7 in)
Longer than the 54 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, 54 years of values from 1945 to 2005.
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: 106.4 mm (4.2 in) in 1955; 103.9 mm (4.1 in) in 1999; 96.8 mm (3.8 in) in 1997.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Tlaxco, at 1982. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1982 ran 0.4 C (0.7 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Tlaxco, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1982
+0.4
+0.7
likely
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Tlaxco standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Tlaxco 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.