Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Ciudad Hidalgo (Smn). 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 Ciudad Hidalgo (Smn), with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
30.6 C (87.1 F)
-6.7 C (19.9 F)
n/a
n/a
Feb
32.2 C (90.0 F)
-8.3 C (17.1 F)
n/a
n/a
Mar
35.6 C (96.1 F)
-4.4 C (24.1 F)
n/a
n/a
Apr
36.7 C (98.1 F)
0.0 C (32.0 F)
n/a
n/a
May
36.1 C (97.0 F)
2.8 C (37.0 F)
n/a
n/a
Jun
36.1 C (97.0 F)
3.9 C (39.0 F)
n/a
n/a
Jul
32.8 C (91.0 F)
6.7 C (44.1 F)
n/a
n/a
Aug
31.7 C (89.1 F)
5.6 C (42.1 F)
n/a
n/a
Sep
33.3 C (91.9 F)
1.7 C (35.1 F)
n/a
n/a
Oct
31.7 C (89.1 F)
-1.7 C (28.9 F)
n/a
n/a
Nov
32.8 C (91.0 F)
-3.3 C (26.1 F)
n/a
n/a
Dec
30.0 C (86.0 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 Ciudad Hidalgo (Smn) still stand. 1941 holds the most, with 50.
Standing records at Ciudad Hidalgo (Smn) by the year they were set
Year set
Standing records
1922
25
1923
29
1924
24
1925
47
1926
42
1927
21
1928
26
1929
17
1930
22
1931
24
1932
24
1933
38
1934
22
1935
14
1936
24
1937
30
1938
19
1939
25
1940
19
1941
50
1942
16
1943
22
1944
31
1945
26
1946
20
1947
31
1948
50
1949
41
1950
30
1951
20
1952
29
1953
15
1954
10
1955
12
1956
26
1957
16
1958
23
1959
15
1960
14
1961
20
1962
7
1963
16
1964
11
1965
19
1966
23
1967
26
1968
22
1969
32
1970
20
1971
19
1972
12
1973
8
1974
16
1975
15
1976
23
1977
15
1978
21
1979
34
1980
14
1981
12
1982
8
1983
24
1984
17
1985
12
1986
8
1987
10
1988
11
Wettest Day of Each Month
Nov: 81.3 mm (3.2 in)
The wettest day on record for each calendar month at Ciudad Hidalgo (Smn). The most was 81.3 mm (3.2 in) on 2 November 1929.
Record daily precipitation for each month at Ciudad Hidalgo (Smn)
Month
Record daily precipitation (mm)
Date
Jan
62.0 mm (2.4 in)
11 January 1967
Feb
41.1 mm (1.6 in)
6 February 1927
Mar
31.2 mm (1.2 in)
2 March 1937
Apr
44.5 mm (1.8 in)
22 April 1946
May
48.3 mm (1.9 in)
18 May 1950
Jun
76.5 mm (3.0 in)
25 June 1932
Jul
81.0 mm (3.2 in)
10 July 1969
Aug
52.3 mm (2.1 in)
5 August 1947
Sep
79.8 mm (3.1 in)
30 September 1986
Oct
53.3 mm (2.1 in)
8 October 1976
Nov
81.3 mm (3.2 in)
2 November 1929
Dec
38.4 mm (1.5 in)
25 December 1947
Period of Record Coverage
1922 to 1988
Complete yearUnder 90 percent of days
67 years of record at Ciudad Hidalgo (Smn), 1922 to 1988. 4 years have data for under 90 percent of days and are left out of rankings: 1922, 1932, 1933, 1988.
Cooler than the station meanWarmer than the station mean
One stripe for each of 58 complete years at Ciudad Hidalgo (Smn), 1923 to 1987. Blue stripes are years cooler than the station's own mean of 17.1 C (62.7 F); red stripes are warmer. The coolest year was 1923, at 15.9 C (60.5 F), and the warmest was 1948, at 18.5 C (65.2 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Ciudad Hidalgo (Smn) as warming stripes, 1923 to 1987
Year
Annual mean temperature
Difference from the station mean
1923
15.9 C
-1.20 C
1924
15.9 C
-1.14 C
1925
16.3 C
-0.75 C
1926
16.5 C
-0.53 C
1927
16.4 C
-0.62 C
1928
16.7 C
-0.41 C
1929
17.0 C
-0.09 C
1930
17.5 C
+0.40 C
1931
17.5 C
+0.47 C
1934
17.3 C
+0.22 C
1935
17.3 C
+0.27 C
1936
18.2 C
+1.11 C
1937
18.1 C
+1.00 C
1938
17.5 C
+0.48 C
1939
17.5 C
+0.47 C
1940
17.4 C
+0.36 C
1941
17.8 C
+0.71 C
1944
17.5 C
+0.46 C
1945
18.1 C
+0.99 C
1948
18.5 C
+1.39 C
1949
18.4 C
+1.34 C
1950
17.7 C
+0.67 C
1951
17.2 C
+0.13 C
1952
17.0 C
-0.07 C
1953
17.3 C
+0.25 C
1954
17.3 C
+0.19 C
1955
16.9 C
-0.18 C
1956
16.7 C
-0.36 C
1957
17.1 C
+0.03 C
1958
16.8 C
-0.27 C
1959
16.8 C
-0.23 C
1960
17.0 C
-0.03 C
1961
16.7 C
-0.32 C
1962
16.9 C
-0.13 C
1963
16.9 C
-0.16 C
1965
16.7 C
-0.36 C
1966
16.6 C
-0.49 C
1967
16.8 C
-0.29 C
1968
17.0 C
-0.09 C
1969
17.6 C
+0.57 C
1970
17.2 C
+0.14 C
1971
17.1 C
-0.01 C
1972
17.4 C
+0.30 C
1973
17.1 C
+0.02 C
1974
16.8 C
-0.24 C
1975
16.5 C
-0.53 C
1976
16.8 C
-0.22 C
1977
17.1 C
+0.01 C
1978
17.2 C
+0.13 C
1979
17.0 C
-0.04 C
1980
17.1 C
+0.06 C
1981
16.9 C
-0.17 C
1982
17.3 C
+0.20 C
1983
16.3 C
-0.80 C
1984
16.1 C
-0.98 C
1985
16.3 C
-0.79 C
1986
16.6 C
-0.46 C
1987
16.6 C
-0.45 C
The fitted trend in annual mean temperature here over 1923 to 1987 is -0.06 C (-0.13 to 0.02) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.10 F (-0.24 to 0.04) per decade. The slope is a straight line fitted to 58 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Ciudad Hidalgo (Smn)
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.06 C (-0.13 to 0.02) per decade
-0.10 F (-0.24 to 0.04) per decade
1923 to 1987
58
Not clearly different from zero
Mean daily maximum
0.12 C (-0.02 to 0.26) per decade
0.22 F (-0.04 to 0.48) per decade
1923 to 1987
58
Not clearly different from zero
Mean daily minimum
-0.2 C (-0.3 to -0.2) per decade
-0.4 F (-0.5 to -0.3) per decade
1923 to 1987
58
Fall
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
1922 to 1988
Yearly extremes at Ciudad Hidalgo (Smn): the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
36.7 C (98.1 F)
1932
33.9 C (93.0 F)
67
Coldest night (TNn)
-8.3 C (17.1 F)
1938
-2.2 C (28.0 F)
67
Wettest day (Rx1day)
81.3 mm (3.2 in)
1929
41.4 mm (1.6 in)
67
Wettest five days (Rx5day)
152.1 mm (6.0 in)
1969
82.0 mm (3.2 in)
67
Longest dry spell (CDD)
102 days
1955
49 days
67
Hottest day (TXx)
The hottest day of the year at Ciudad Hidalgo (Smn), 1922 to 1988. The record is 36.7 C (98.1 F) in 1932, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at Ciudad Hidalgo (Smn) by year
Year
Hottest day (TXx)
1922
28.9 C (84.0 F)
1923
31.7 C (89.1 F)
1924
30.0 C (86.0 F)
1925
29.4 C (84.9 F)
1926
30.0 C (86.0 F)
1927
31.1 C (88.0 F)
1928
30.0 C (86.0 F)
1929
32.8 C (91.0 F)
1930
34.4 C (93.9 F)
1931
32.8 C (91.0 F)
1932
36.7 C (98.1 F)
1933
33.9 C (93.0 F)
1934
32.8 C (91.0 F)
1935
33.9 C (93.0 F)
1936
36.1 C (97.0 F)
1937
35.0 C (95.0 F)
1938
32.8 C (91.0 F)
1939
33.3 C (91.9 F)
1940
35.0 C (95.0 F)
1941
32.8 C (91.0 F)
1942
35.0 C (95.0 F)
1943
35.0 C (95.0 F)
1944
33.9 C (93.0 F)
1945
35.0 C (95.0 F)
1946
34.4 C (93.9 F)
1947
34.4 C (93.9 F)
1948
35.6 C (96.1 F)
1949
36.1 C (97.0 F)
1950
36.1 C (97.0 F)
1951
33.3 C (91.9 F)
1952
33.9 C (93.0 F)
1953
33.9 C (93.0 F)
1954
33.9 C (93.0 F)
1955
33.3 C (91.9 F)
1956
32.2 C (90.0 F)
1957
33.3 C (91.9 F)
1958
33.3 C (91.9 F)
1959
30.6 C (87.1 F)
1960
33.3 C (91.9 F)
1961
33.3 C (91.9 F)
1962
32.2 C (90.0 F)
1963
33.3 C (91.9 F)
1964
35.0 C (95.0 F)
1965
33.3 C (91.9 F)
1966
32.2 C (90.0 F)
1967
34.4 C (93.9 F)
1968
33.9 C (93.0 F)
1969
35.6 C (96.1 F)
1970
33.9 C (93.0 F)
1971
33.9 C (93.0 F)
1972
35.0 C (95.0 F)
1973
35.0 C (95.0 F)
1974
32.8 C (91.0 F)
1975
33.9 C (93.0 F)
1976
35.0 C (95.0 F)
1977
35.0 C (95.0 F)
1978
35.0 C (95.0 F)
1979
33.9 C (93.0 F)
1980
33.9 C (93.0 F)
1981
33.9 C (93.0 F)
1982
33.9 C (93.0 F)
1983
35.0 C (95.0 F)
1984
31.7 C (89.1 F)
1985
32.8 C (91.0 F)
1986
32.8 C (91.0 F)
1987
31.7 C (89.1 F)
1988
33.9 C (93.0 F)
Coldest night (TNn)
The coldest night of the year at Ciudad Hidalgo (Smn), 1922 to 1988. The record is -8.3 C (17.1 F) in 1938, marked on the chart; the median year is -2.2 C (28.0 F).
Coldest night (TNn) at Ciudad Hidalgo (Smn) by year
Year
Coldest night (TNn)
1922
-0.6 C (30.9 F)
1923
1.7 C (35.1 F)
1924
-0.6 C (30.9 F)
1925
-1.7 C (28.9 F)
1926
0.6 C (33.1 F)
1927
0.0 C (32.0 F)
1928
0.6 C (33.1 F)
1929
0.6 C (33.1 F)
1930
0.0 C (32.0 F)
1931
0.0 C (32.0 F)
1932
0.0 C (32.0 F)
1933
-2.2 C (28.0 F)
1934
-4.4 C (24.1 F)
1935
-2.2 C (28.0 F)
1936
0.6 C (33.1 F)
1937
0.0 C (32.0 F)
1938
-8.3 C (17.1 F)
1939
-2.8 C (27.0 F)
1940
-5.0 C (23.0 F)
1941
-4.4 C (24.1 F)
1942
-3.3 C (26.1 F)
1943
-2.2 C (28.0 F)
1944
0.0 C (32.0 F)
1945
-0.6 C (30.9 F)
1946
1.1 C (34.0 F)
1947
1.1 C (34.0 F)
1948
1.1 C (34.0 F)
1949
0.0 C (32.0 F)
1950
-2.8 C (27.0 F)
1951
-2.2 C (28.0 F)
1952
-1.7 C (28.9 F)
1953
-2.8 C (27.0 F)
1954
-3.3 C (26.1 F)
1955
-4.4 C (24.1 F)
1956
-6.7 C (19.9 F)
1957
-3.9 C (25.0 F)
1958
-0.6 C (30.9 F)
1959
-2.2 C (28.0 F)
1960
-2.2 C (28.0 F)
1961
-4.4 C (24.1 F)
1962
-1.1 C (30.0 F)
1963
-8.3 C (17.1 F)
1964
1.1 C (34.0 F)
1965
-2.2 C (28.0 F)
1966
-4.4 C (24.1 F)
1967
-2.2 C (28.0 F)
1968
-2.2 C (28.0 F)
1969
-1.1 C (30.0 F)
1970
-3.3 C (26.1 F)
1971
-0.6 C (30.9 F)
1972
-1.7 C (28.9 F)
1973
-1.7 C (28.9 F)
1974
-1.1 C (30.0 F)
1975
-4.4 C (24.1 F)
1976
-4.4 C (24.1 F)
1977
-2.2 C (28.0 F)
1978
-1.1 C (30.0 F)
1979
-1.1 C (30.0 F)
1980
-2.2 C (28.0 F)
1981
-2.2 C (28.0 F)
1982
0.0 C (32.0 F)
1983
-2.2 C (28.0 F)
1984
0.0 C (32.0 F)
1985
0.0 C (32.0 F)
1986
-3.3 C (26.1 F)
1987
-2.2 C (28.0 F)
1988
-3.3 C (26.1 F)
Wettest day (Rx1day)
The wettest day of the year at Ciudad Hidalgo (Smn), 1922 to 1988. The record is 81.3 mm (3.2 in) in 1929, marked on the chart; the median year is 41.4 mm (1.6 in).
Wettest day (Rx1day) at Ciudad Hidalgo (Smn) by year
Year
Wettest day (Rx1day)
1922
32.8 mm (1.3 in)
1923
42.7 mm (1.7 in)
1924
68.6 mm (2.7 in)
1925
58.9 mm (2.3 in)
1926
41.1 mm (1.6 in)
1927
48.8 mm (1.9 in)
1928
66.0 mm (2.6 in)
1929
81.3 mm (3.2 in)
1930
41.4 mm (1.6 in)
1931
43.9 mm (1.7 in)
1932
76.5 mm (3.0 in)
1933
44.5 mm (1.8 in)
1934
34.8 mm (1.4 in)
1935
43.9 mm (1.7 in)
1936
50.8 mm (2.0 in)
1937
38.9 mm (1.5 in)
1938
41.9 mm (1.6 in)
1939
35.1 mm (1.4 in)
1940
31.5 mm (1.2 in)
1941
43.4 mm (1.7 in)
1942
38.4 mm (1.5 in)
1943
31.5 mm (1.2 in)
1944
47.8 mm (1.9 in)
1945
35.3 mm (1.4 in)
1946
44.5 mm (1.8 in)
1947
52.3 mm (2.1 in)
1948
38.6 mm (1.5 in)
1949
34.8 mm (1.4 in)
1950
48.3 mm (1.9 in)
1951
49.3 mm (1.9 in)
1952
64.5 mm (2.5 in)
1953
38.4 mm (1.5 in)
1954
51.3 mm (2.0 in)
1955
55.6 mm (2.2 in)
1956
30.2 mm (1.2 in)
1957
31.8 mm (1.3 in)
1958
50.3 mm (2.0 in)
1959
40.4 mm (1.6 in)
1960
32.8 mm (1.3 in)
1961
49.8 mm (2.0 in)
1962
26.4 mm (1.0 in)
1963
30.2 mm (1.2 in)
1964
27.2 mm (1.1 in)
1965
61.2 mm (2.4 in)
1966
42.9 mm (1.7 in)
1967
62.0 mm (2.4 in)
1968
31.5 mm (1.2 in)
1969
81.0 mm (3.2 in)
1970
33.3 mm (1.3 in)
1971
39.9 mm (1.6 in)
1972
42.4 mm (1.7 in)
1973
60.5 mm (2.4 in)
1974
46.7 mm (1.8 in)
1975
34.5 mm (1.4 in)
1976
53.3 mm (2.1 in)
1977
24.9 mm (1.0 in)
1978
22.1 mm (0.9 in)
1979
33.3 mm (1.3 in)
1980
53.1 mm (2.1 in)
1981
41.4 mm (1.6 in)
1982
31.0 mm (1.2 in)
1983
36.8 mm (1.4 in)
1984
36.6 mm (1.4 in)
1985
28.2 mm (1.1 in)
1986
79.8 mm (3.1 in)
1987
29.0 mm (1.1 in)
1988
33.8 mm (1.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Ciudad Hidalgo (Smn), 1922 to 1988. The record is 152.1 mm (6.0 in) in 1969, marked on the chart; the median year is 82.0 mm (3.2 in).
Wettest five days (Rx5day) at Ciudad Hidalgo (Smn) by year
Year
Wettest five days (Rx5day)
1922
78.9 mm (3.1 in)
1923
63.3 mm (2.5 in)
1924
91.7 mm (3.6 in)
1925
108.0 mm (4.3 in)
1926
77.4 mm (3.0 in)
1927
97.3 mm (3.8 in)
1928
66.8 mm (2.6 in)
1929
81.3 mm (3.2 in)
1930
73.6 mm (2.9 in)
1931
88.4 mm (3.5 in)
1932
133.0 mm (5.2 in)
1933
87.4 mm (3.4 in)
1934
90.7 mm (3.6 in)
1935
104.4 mm (4.1 in)
1936
81.4 mm (3.2 in)
1937
120.9 mm (4.8 in)
1938
64.7 mm (2.5 in)
1939
65.5 mm (2.6 in)
1940
92.1 mm (3.6 in)
1941
81.8 mm (3.2 in)
1942
76.4 mm (3.0 in)
1943
79.1 mm (3.1 in)
1944
83.2 mm (3.3 in)
1945
83.9 mm (3.3 in)
1946
102.6 mm (4.0 in)
1947
102.1 mm (4.0 in)
1948
112.1 mm (4.4 in)
1949
82.0 mm (3.2 in)
1950
76.0 mm (3.0 in)
1951
75.5 mm (3.0 in)
1952
98.5 mm (3.9 in)
1953
68.1 mm (2.7 in)
1954
88.6 mm (3.5 in)
1955
86.4 mm (3.4 in)
1956
58.0 mm (2.3 in)
1957
71.9 mm (2.8 in)
1958
98.9 mm (3.9 in)
1959
104.2 mm (4.1 in)
1960
60.2 mm (2.4 in)
1961
115.9 mm (4.6 in)
1962
53.2 mm (2.1 in)
1963
81.4 mm (3.2 in)
1964
62.1 mm (2.4 in)
1965
122.7 mm (4.8 in)
1966
76.5 mm (3.0 in)
1967
133.9 mm (5.3 in)
1968
87.7 mm (3.5 in)
1969
152.1 mm (6.0 in)
1970
70.0 mm (2.8 in)
1971
100.9 mm (4.0 in)
1972
78.2 mm (3.1 in)
1973
94.6 mm (3.7 in)
1974
124.9 mm (4.9 in)
1975
67.8 mm (2.7 in)
1976
116.8 mm (4.6 in)
1977
50.4 mm (2.0 in)
1978
67.1 mm (2.6 in)
1979
73.2 mm (2.9 in)
1980
128.7 mm (5.1 in)
1981
89.4 mm (3.5 in)
1982
71.5 mm (2.8 in)
1983
66.3 mm (2.6 in)
1984
106.4 mm (4.2 in)
1985
64.5 mm (2.5 in)
1986
104.7 mm (4.1 in)
1987
46.5 mm (1.8 in)
1988
64.1 mm (2.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Ciudad Hidalgo (Smn), 1922 to 1988. The record is 102 days in 1955, marked on the chart; the median year is 49 days.
Longest dry spell (CDD) at Ciudad Hidalgo (Smn) by year
Year
Longest dry spell (CDD)
1922
21 days
1923
46 days
1924
62 days
1925
33 days
1926
58 days
1927
38 days
1928
30 days
1929
30 days
1930
49 days
1931
41 days
1932
45 days
1933
74 days
1934
66 days
1935
30 days
1936
40 days
1937
23 days
1938
31 days
1939
47 days
1940
58 days
1941
29 days
1942
46 days
1943
27 days
1944
56 days
1945
44 days
1946
67 days
1947
37 days
1948
40 days
1949
62 days
1950
71 days
1951
77 days
1952
45 days
1953
72 days
1954
53 days
1955
102 days
1956
76 days
1957
51 days
1958
91 days
1959
53 days
1960
47 days
1961
48 days
1962
100 days
1963
78 days
1964
62 days
1965
37 days
1966
49 days
1967
44 days
1968
27 days
1969
59 days
1970
68 days
1971
75 days
1972
33 days
1973
84 days
1974
68 days
1975
93 days
1976
48 days
1977
48 days
1978
34 days
1979
73 days
1980
72 days
1981
45 days
1982
48 days
1983
70 days
1984
57 days
1985
34 days
1986
56 days
1987
92 days
1988
59 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
30 years with a frost
Across 30 years with a frost, the median last spring frost at Ciudad Hidalgo (Smn) falls on 6 February and the median first autumn frost on 2 December, which leaves a median of 301 days between them.
Fitted over all years, the growing season changes by +5.2 days per decade at this station.
Frost dates and growing season at Ciudad Hidalgo (Smn)
Measure
Median, all years
Earliest period
Recent period (1938 to 1986)
Recent against earliest
Fitted trend
Last spring frost
6 February
n/a
6 February
n/a
-4.1 days per decade
First autumn frost
2 December
n/a
2 December
n/a
+1.2 days per decade
Growing days
301 days
n/a
301 days
n/a
+5.2 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
64 years, 1923 to 1987
A day with at least 41.8 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 92.5 mm (3.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Ciudad Hidalgo (Smn): the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
41.8 mm (1.6 in)
5 years
54.5 mm (2.1 in)
10 years
63.2 mm (2.5 in)
25 years
74.7 mm (2.9 in)
50 years
83.5 mm (3.3 in)
100 years
92.5 mm (3.6 in)
Longer than the 64 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, 64 years of values from 1923 to 1987.
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: 81.3 mm (3.2 in) in 1929; 81.0 mm (3.2 in) in 1969; 79.8 mm (3.1 in) in 1986.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Ciudad Hidalgo (Smn), at 1952. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1952 ran 0.4 C (0.7 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Ciudad Hidalgo (Smn), against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1952
+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 Ciudad Hidalgo (Smn) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ciudad Hidalgo (Smn) 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.