Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Huichapan. 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 Huichapan, 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)
-11.1 C (12.0 F)
n/a
n/a
Feb
37.2 C (99.0 F)
-9.4 C (15.1 F)
n/a
n/a
Mar
37.2 C (99.0 F)
-11.1 C (12.0 F)
n/a
n/a
Apr
35.6 C (96.1 F)
-6.7 C (19.9 F)
n/a
n/a
May
37.2 C (99.0 F)
-2.2 C (28.0 F)
n/a
n/a
Jun
37.8 C (100.0 F)
0.0 C (32.0 F)
n/a
n/a
Jul
35.6 C (96.1 F)
0.0 C (32.0 F)
n/a
n/a
Aug
36.7 C (98.1 F)
0.0 C (32.0 F)
n/a
n/a
Sep
35.6 C (96.1 F)
-4.4 C (24.1 F)
n/a
n/a
Oct
35.0 C (95.0 F)
-4.4 C (24.1 F)
n/a
n/a
Nov
31.1 C (88.0 F)
-8.9 C (16.0 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 Huichapan still stand. 1958 holds the most, with 134.
Standing records at Huichapan by the year they were set
Year set
Standing records
1903
16
1904
2
1905
21
1906
21
1907
15
1908
22
1909
19
1910
8
1911
9
1916
8
1919
1
1920
24
1921
34
1922
20
1923
9
1924
7
1925
16
1926
17
1927
9
1928
31
1929
15
1930
29
1932
80
1933
44
1934
24
1935
23
1936
22
1937
19
1938
33
1939
28
1940
42
1941
26
1942
11
1943
14
1944
8
1945
48
1946
31
1947
23
1948
20
1949
7
1950
15
1951
19
1952
16
1953
19
1954
11
1955
15
1956
2
1957
23
1958
134
1959
10
1960
3
1961
1
1964
8
1965
7
1966
7
1967
10
1968
4
1969
9
1970
4
1971
4
1972
2
1973
4
1974
3
1976
7
1977
11
1978
10
1979
3
1980
5
1981
5
1982
1
1983
1
1984
11
1985
7
1986
4
1987
124
1988
5
1990
1
1991
14
1992
6
1993
1
1994
2
1995
1
1996
1
1997
4
1998
12
1999
3
2003
1
2004
2
2006
5
2007
6
2009
4
2010
10
2011
9
2012
2
All-Time Record Progression
1 new records
1 all-time records were set at Huichapan between 14 June 1958 and 14 June 1958. Each dot is a new record.
When Huichapan set new all-time records
Date
Kind
Detail
1958-06-14
Record high maximum temperature
Record high maximum temperature 37.8 C (100.0 F)
Wettest Day of Each Month
Jul: 218.9 mm (8.6 in)
The wettest day on record for each calendar month at Huichapan. The most was 218.9 mm (8.6 in) on 10 July 1903.
Record daily precipitation for each month at Huichapan
Month
Record daily precipitation (mm)
Date
Jan
43.9 mm (1.7 in)
30 January 2010
Feb
112.3 mm (4.4 in)
1 February 1906
Mar
99.8 mm (3.9 in)
4 March 1923
Apr
110.0 mm (4.3 in)
23 April 1923
May
85.3 mm (3.4 in)
21 May 1978
Jun
169.9 mm (6.7 in)
12 June 1923
Jul
218.9 mm (8.6 in)
10 July 1903
Aug
94.2 mm (3.7 in)
16 August 1905
Sep
182.4 mm (7.2 in)
13 September 1905
Oct
58.4 mm (2.3 in)
8 October 1982
Nov
36.3 mm (1.4 in)
23 November 1974
Dec
18.8 mm (0.7 in)
21 December 1934
Period of Record Coverage
1916 to 2012
Complete yearUnder 90 percent of days
93 years of record at Huichapan, 1916 to 2012. 15 years have data for under 90 percent of days and are left out of rankings: 1916, 1919, 1921, 1935, 1949, 1953, 1955, 1956 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 72 complete years at Huichapan, 1920 to 2011. Blue stripes are years cooler than the station's own mean of 15.6 C (60.0 F); red stripes are warmer. The coolest year was 1939, at 13.5 C (56.3 F), and the warmest was 1945, at 18.2 C (64.8 F). The strongest colour marks a difference of 2.7 C (4.9 F).
Annual mean temperature at Huichapan as warming stripes, 1920 to 2011
Year
Annual mean temperature
Difference from the station mean
1920
16.7 C
+1.18 C
1922
16.8 C
+1.21 C
1923
16.4 C
+0.86 C
1924
16.5 C
+0.90 C
1925
16.2 C
+0.62 C
1926
16.7 C
+1.14 C
1927
16.2 C
+0.60 C
1928
16.8 C
+1.21 C
1929
16.0 C
+0.47 C
1932
14.9 C
-0.68 C
1933
15.1 C
-0.45 C
1934
14.5 C
-1.06 C
1936
15.0 C
-0.59 C
1937
14.9 C
-0.61 C
1938
14.2 C
-1.36 C
1939
13.5 C
-2.05 C
1940
13.8 C
-1.80 C
1941
13.9 C
-1.61 C
1942
15.0 C
-0.51 C
1943
14.9 C
-0.64 C
1944
16.3 C
+0.73 C
1945
18.2 C
+2.66 C
1946
18.1 C
+2.50 C
1947
16.1 C
+0.56 C
1948
16.3 C
+0.71 C
1950
16.8 C
+1.29 C
1951
17.0 C
+1.40 C
1952
16.4 C
+0.81 C
1965
15.8 C
+0.23 C
1966
15.0 C
-0.52 C
1967
15.0 C
-0.58 C
1968
15.2 C
-0.33 C
1969
16.1 C
+0.59 C
1970
15.8 C
+0.24 C
1971
15.6 C
+0.01 C
1972
16.0 C
+0.40 C
1973
16.1 C
+0.58 C
1974
15.5 C
-0.09 C
1975
15.6 C
+0.08 C
1976
15.4 C
-0.11 C
1977
14.8 C
-0.79 C
1978
14.3 C
-1.26 C
1979
14.5 C
-1.09 C
1980
15.3 C
-0.23 C
1981
14.8 C
-0.73 C
1982
15.6 C
+0.05 C
1983
15.3 C
-0.21 C
1984
15.3 C
-0.29 C
1985
15.7 C
+0.11 C
1986
15.8 C
+0.20 C
1988
14.1 C
-1.41 C
1989
14.3 C
-1.24 C
1991
13.5 C
-2.05 C
1992
14.8 C
-0.77 C
1993
15.8 C
+0.24 C
1994
15.6 C
+0.09 C
1995
15.8 C
+0.27 C
1996
15.4 C
-0.13 C
1997
15.6 C
+0.01 C
1998
16.7 C
+1.14 C
1999
15.5 C
-0.03 C
2000
15.5 C
-0.09 C
2001
15.7 C
+0.14 C
2002
15.9 C
+0.30 C
2003
15.9 C
+0.39 C
2004
15.5 C
-0.09 C
2005
15.6 C
+0.02 C
2006
15.3 C
-0.28 C
2007
14.6 C
-0.92 C
2009
15.6 C
+0.09 C
2010
15.4 C
-0.15 C
2011
16.4 C
+0.82 C
The fitted trend in annual mean temperature here over 1920 to 2011 is -0.06 C (-0.14 to 0.02) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.11 F (-0.25 to 0.03) per decade. The slope is a straight line fitted to 72 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Huichapan
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.06 C (-0.14 to 0.02) per decade
-0.11 F (-0.25 to 0.03) per decade
1920 to 2011
72
Not clearly different from zero
Mean daily maximum
-0.10 C (-0.21 to 0.01) per decade
-0.18 F (-0.38 to 0.02) per decade
1920 to 2011
72
Not clearly different from zero
Mean daily minimum
-0.02 C (-0.17 to 0.12) per decade
-0.05 F (-0.30 to 0.21) per decade
1920 to 2011
72
Not clearly different from zero
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
1903 to 2012
Yearly extremes at Huichapan: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
37.8 C (100.0 F)
1958
32.8 C (91.0 F)
93
Coldest night (TNn)
-11.1 C (12.0 F)
1934
0.0 C (32.0 F)
103
Wettest day (Rx1day)
218.9 mm (8.6 in)
1903
41.9 mm (1.6 in)
105
Wettest five days (Rx5day)
436.9 mm (17.2 in)
1905
73.4 mm (2.9 in)
105
Longest dry spell (CDD)
193 days
1957
65 days
105
Hottest day (TXx)
The hottest day of the year at Huichapan, 1903 to 2012. The record is 37.8 C (100.0 F) in 1958, marked on the chart; the median year is 32.8 C (91.0 F).
Hottest day (TXx) at Huichapan by year
Year
Hottest day (TXx)
1903
n/a
1904
n/a
1905
n/a
1906
n/a
1907
n/a
1908
n/a
1909
n/a
1910
n/a
1911
n/a
1912
n/a
1916
32.8 C (91.0 F)
1917
n/a
1918
n/a
1919
26.7 C (80.1 F)
1920
35.0 C (95.0 F)
1921
35.6 C (96.1 F)
1922
35.6 C (96.1 F)
1923
31.7 C (89.1 F)
1924
31.7 C (89.1 F)
1925
30.6 C (87.1 F)
1926
31.7 C (89.1 F)
1927
31.7 C (89.1 F)
1928
32.2 C (90.0 F)
1929
34.4 C (93.9 F)
1930
37.2 C (99.0 F)
1932
37.2 C (99.0 F)
1933
36.1 C (97.0 F)
1934
32.2 C (90.0 F)
1935
33.9 C (93.0 F)
1936
33.9 C (93.0 F)
1937
35.0 C (95.0 F)
1938
31.7 C (89.1 F)
1939
31.7 C (89.1 F)
1940
32.8 C (91.0 F)
1941
33.9 C (93.0 F)
1942
36.1 C (97.0 F)
1943
33.9 C (93.0 F)
1944
32.2 C (90.0 F)
1945
35.6 C (96.1 F)
1946
36.7 C (98.1 F)
1947
34.4 C (93.9 F)
1948
37.2 C (99.0 F)
1949
34.4 C (93.9 F)
1950
35.0 C (95.0 F)
1951
36.1 C (97.0 F)
1952
33.9 C (93.0 F)
1953
33.9 C (93.0 F)
1954
31.7 C (89.1 F)
1955
30.6 C (87.1 F)
1956
30.6 C (87.1 F)
1957
33.9 C (93.0 F)
1958
37.8 C (100.0 F)
1959
35.6 C (96.1 F)
1960
31.7 C (89.1 F)
1961
31.7 C (89.1 F)
1962
31.7 C (89.1 F)
1964
28.9 C (84.0 F)
1965
35.0 C (95.0 F)
1966
31.7 C (89.1 F)
1967
31.7 C (89.1 F)
1968
31.7 C (89.1 F)
1969
32.8 C (91.0 F)
1970
33.9 C (93.0 F)
1971
33.9 C (93.0 F)
1972
31.7 C (89.1 F)
1973
33.9 C (93.0 F)
1974
31.7 C (89.1 F)
1975
31.7 C (89.1 F)
1976
30.6 C (87.1 F)
1977
30.6 C (87.1 F)
1978
31.7 C (89.1 F)
1979
30.6 C (87.1 F)
1980
30.6 C (87.1 F)
1981
30.0 C (86.0 F)
1982
31.7 C (89.1 F)
1983
32.8 C (91.0 F)
1984
32.8 C (91.0 F)
1985
31.7 C (89.1 F)
1986
31.7 C (89.1 F)
1987
26.7 C (80.1 F)
1988
30.6 C (87.1 F)
1989
31.7 C (89.1 F)
1990
26.7 C (80.1 F)
1991
28.9 C (84.0 F)
1992
31.7 C (89.1 F)
1993
33.9 C (93.0 F)
1994
32.8 C (91.0 F)
1995
33.9 C (93.0 F)
1996
32.8 C (91.0 F)
1997
30.6 C (87.1 F)
1998
35.6 C (96.1 F)
1999
35.0 C (95.0 F)
2000
31.7 C (89.1 F)
2001
32.8 C (91.0 F)
2002
33.9 C (93.0 F)
2003
35.6 C (96.1 F)
2004
31.7 C (89.1 F)
2005
33.9 C (93.0 F)
2006
35.0 C (95.0 F)
2007
32.8 C (91.0 F)
2008
33.9 C (93.0 F)
2009
32.8 C (91.0 F)
2010
35.0 C (95.0 F)
2011
35.0 C (95.0 F)
2012
30.6 C (87.1 F)
Coldest night (TNn)
The coldest night of the year at Huichapan, 1903 to 2012. The record is -11.1 C (12.0 F) in 1934, marked on the chart; the median year is 0.0 C (32.0 F).
Coldest night (TNn) at Huichapan by year
Year
Coldest night (TNn)
1903
0.6 C (33.1 F)
1904
0.6 C (33.1 F)
1905
-3.3 C (26.1 F)
1906
-4.4 C (24.1 F)
1907
1.7 C (35.1 F)
1908
0.6 C (33.1 F)
1909
-1.1 C (30.0 F)
1910
-5.0 C (23.0 F)
1911
-2.2 C (28.0 F)
1912
0.0 C (32.0 F)
1916
0.0 C (32.0 F)
1917
n/a
1918
n/a
1919
3.9 C (39.0 F)
1920
0.0 C (32.0 F)
1921
0.0 C (32.0 F)
1922
-1.1 C (30.0 F)
1923
0.0 C (32.0 F)
1924
0.0 C (32.0 F)
1925
0.0 C (32.0 F)
1926
0.6 C (33.1 F)
1927
0.0 C (32.0 F)
1928
0.0 C (32.0 F)
1929
0.0 C (32.0 F)
1930
-7.8 C (18.0 F)
1932
-8.9 C (16.0 F)
1933
-7.2 C (19.0 F)
1934
-11.1 C (12.0 F)
1935
-9.4 C (15.1 F)
1936
-6.1 C (21.0 F)
1937
-3.9 C (25.0 F)
1938
-11.1 C (12.0 F)
1939
-6.7 C (19.9 F)
1940
-8.3 C (17.1 F)
1941
-10.6 C (12.9 F)
1942
-3.3 C (26.1 F)
1943
-5.0 C (23.0 F)
1944
-5.6 C (21.9 F)
1945
-4.4 C (24.1 F)
1946
-2.2 C (28.0 F)
1947
-2.8 C (27.0 F)
1948
-2.2 C (28.0 F)
1949
-2.8 C (27.0 F)
1950
0.0 C (32.0 F)
1951
0.0 C (32.0 F)
1952
-2.2 C (28.0 F)
1953
-5.0 C (23.0 F)
1954
-7.2 C (19.0 F)
1955
-6.1 C (21.0 F)
1956
-2.2 C (28.0 F)
1957
-4.4 C (24.1 F)
1958
-4.4 C (24.1 F)
1959
0.6 C (33.1 F)
1960
0.0 C (32.0 F)
1961
0.6 C (33.1 F)
1962
0.6 C (33.1 F)
1964
2.8 C (37.0 F)
1965
2.8 C (37.0 F)
1966
0.6 C (33.1 F)
1967
0.6 C (33.1 F)
1968
0.6 C (33.1 F)
1969
0.6 C (33.1 F)
1970
0.6 C (33.1 F)
1971
0.6 C (33.1 F)
1972
0.6 C (33.1 F)
1973
0.6 C (33.1 F)
1974
0.6 C (33.1 F)
1975
0.0 C (32.0 F)
1976
0.0 C (32.0 F)
1977
0.0 C (32.0 F)
1978
0.0 C (32.0 F)
1979
0.0 C (32.0 F)
1980
0.0 C (32.0 F)
1981
0.6 C (33.1 F)
1982
0.6 C (33.1 F)
1983
0.6 C (33.1 F)
1984
0.0 C (32.0 F)
1985
0.0 C (32.0 F)
1986
0.0 C (32.0 F)
1987
0.0 C (32.0 F)
1988
1.7 C (35.1 F)
1989
0.6 C (33.1 F)
1990
0.6 C (33.1 F)
1991
0.6 C (33.1 F)
1992
0.6 C (33.1 F)
1993
0.6 C (33.1 F)
1994
0.0 C (32.0 F)
1995
0.0 C (32.0 F)
1996
0.0 C (32.0 F)
1997
-4.4 C (24.1 F)
1998
-5.0 C (23.0 F)
1999
-4.4 C (24.1 F)
2000
0.0 C (32.0 F)
2001
0.6 C (33.1 F)
2002
0.0 C (32.0 F)
2003
0.0 C (32.0 F)
2004
0.0 C (32.0 F)
2005
-4.4 C (24.1 F)
2006
0.0 C (32.0 F)
2007
0.0 C (32.0 F)
2008
0.0 C (32.0 F)
2009
0.0 C (32.0 F)
2010
0.0 C (32.0 F)
2011
0.0 C (32.0 F)
2012
0.0 C (32.0 F)
Wettest day (Rx1day)
The wettest day of the year at Huichapan, 1903 to 2012. The record is 218.9 mm (8.6 in) in 1903, marked on the chart; the median year is 41.9 mm (1.6 in).
Wettest day (Rx1day) at Huichapan by year
Year
Wettest day (Rx1day)
1903
218.9 mm (8.6 in)
1904
76.2 mm (3.0 in)
1905
182.4 mm (7.2 in)
1906
112.3 mm (4.4 in)
1907
26.7 mm (1.1 in)
1908
38.9 mm (1.5 in)
1909
40.6 mm (1.6 in)
1910
49.5 mm (1.9 in)
1911
30.2 mm (1.2 in)
1912
10.4 mm (0.4 in)
1916
0.0 mm (0.00 in)
1917
7.1 mm (0.28 in)
1918
37.8 mm (1.5 in)
1919
1.8 mm (0.07 in)
1920
4.1 mm (0.16 in)
1921
2.3 mm (0.09 in)
1922
149.9 mm (5.9 in)
1923
169.9 mm (6.7 in)
1924
41.9 mm (1.6 in)
1925
62.0 mm (2.4 in)
1926
19.8 mm (0.8 in)
1927
35.3 mm (1.4 in)
1928
25.4 mm (1.0 in)
1929
19.8 mm (0.8 in)
1930
25.4 mm (1.0 in)
1932
39.9 mm (1.6 in)
1933
56.4 mm (2.2 in)
1934
32.0 mm (1.3 in)
1935
19.8 mm (0.8 in)
1936
30.0 mm (1.2 in)
1937
54.1 mm (2.1 in)
1938
23.9 mm (0.9 in)
1939
27.9 mm (1.1 in)
1940
36.8 mm (1.4 in)
1941
53.6 mm (2.1 in)
1942
53.8 mm (2.1 in)
1943
65.3 mm (2.6 in)
1944
69.3 mm (2.7 in)
1945
19.8 mm (0.8 in)
1946
73.9 mm (2.9 in)
1947
59.9 mm (2.4 in)
1948
34.8 mm (1.4 in)
1949
8.9 mm (0.35 in)
1950
34.8 mm (1.4 in)
1951
35.8 mm (1.4 in)
1952
30.0 mm (1.2 in)
1953
49.8 mm (2.0 in)
1954
19.8 mm (0.8 in)
1955
8.4 mm (0.33 in)
1956
2.8 mm (0.11 in)
1957
2.8 mm (0.11 in)
1958
3.3 mm (0.13 in)
1959
4.6 mm (0.18 in)
1960
24.9 mm (1.0 in)
1961
31.0 mm (1.2 in)
1962
28.2 mm (1.1 in)
1964
37.8 mm (1.5 in)
1965
47.8 mm (1.9 in)
1966
59.4 mm (2.3 in)
1967
53.8 mm (2.1 in)
1968
47.8 mm (1.9 in)
1969
49.3 mm (1.9 in)
1970
47.8 mm (1.9 in)
1971
46.5 mm (1.8 in)
1972
45.0 mm (1.8 in)
1973
49.8 mm (2.0 in)
1974
43.9 mm (1.7 in)
1975
64.8 mm (2.6 in)
1976
58.4 mm (2.3 in)
1977
49.8 mm (2.0 in)
1978
85.3 mm (3.4 in)
1979
66.8 mm (2.6 in)
1980
63.5 mm (2.5 in)
1981
45.0 mm (1.8 in)
1982
58.4 mm (2.3 in)
1983
52.8 mm (2.1 in)
1984
28.4 mm (1.1 in)
1985
54.9 mm (2.2 in)
1986
48.3 mm (1.9 in)
1987
22.9 mm (0.9 in)
1988
59.9 mm (2.4 in)
1989
64.8 mm (2.6 in)
1990
54.9 mm (2.2 in)
1991
22.9 mm (0.9 in)
1992
34.8 mm (1.4 in)
1993
35.8 mm (1.4 in)
1994
45.0 mm (1.8 in)
1995
6.6 mm (0.26 in)
1996
78.0 mm (3.1 in)
1997
42.9 mm (1.7 in)
1998
46.0 mm (1.8 in)
1999
36.8 mm (1.4 in)
2000
53.8 mm (2.1 in)
2001
32.8 mm (1.3 in)
2002
25.9 mm (1.0 in)
2003
25.9 mm (1.0 in)
2004
15.0 mm (0.6 in)
2005
45.0 mm (1.8 in)
2006
42.9 mm (1.7 in)
2007
70.9 mm (2.8 in)
2008
54.9 mm (2.2 in)
2009
42.9 mm (1.7 in)
2010
49.8 mm (2.0 in)
2011
37.8 mm (1.5 in)
2012
5.8 mm (0.23 in)
Wettest five days (Rx5day)
The wettest five days of the year at Huichapan, 1903 to 2012. The record is 436.9 mm (17.2 in) in 1905, marked on the chart; the median year is 73.4 mm (2.9 in).
Wettest five days (Rx5day) at Huichapan by year
Year
Wettest five days (Rx5day)
1903
227.5 mm (9.0 in)
1904
144.8 mm (5.7 in)
1905
436.9 mm (17.2 in)
1906
114.6 mm (4.5 in)
1907
66.9 mm (2.6 in)
1908
77.3 mm (3.0 in)
1909
65.0 mm (2.6 in)
1910
68.1 mm (2.7 in)
1911
75.7 mm (3.0 in)
1912
18.3 mm (0.7 in)
1916
0.0 mm (0.00 in)
1917
17.5 mm (0.7 in)
1918
37.8 mm (1.5 in)
1919
1.8 mm (0.07 in)
1920
4.4 mm (0.17 in)
1921
4.8 mm (0.19 in)
1922
359.3 mm (14.1 in)
1923
271.5 mm (10.7 in)
1924
65.8 mm (2.6 in)
1925
203.8 mm (8.0 in)
1926
72.4 mm (2.9 in)
1927
41.4 mm (1.6 in)
1928
64.0 mm (2.5 in)
1929
32.8 mm (1.3 in)
1930
52.6 mm (2.1 in)
1932
82.5 mm (3.2 in)
1933
87.7 mm (3.5 in)
1934
59.7 mm (2.4 in)
1935
39.3 mm (1.5 in)
1936
54.9 mm (2.2 in)
1937
73.9 mm (2.9 in)
1938
58.6 mm (2.3 in)
1939
76.8 mm (3.0 in)
1940
98.3 mm (3.9 in)
1941
84.7 mm (3.3 in)
1942
76.2 mm (3.0 in)
1943
138.8 mm (5.5 in)
1944
137.9 mm (5.4 in)
1945
25.4 mm (1.0 in)
1946
97.6 mm (3.8 in)
1947
123.5 mm (4.9 in)
1948
81.5 mm (3.2 in)
1949
10.8 mm (0.4 in)
1950
87.4 mm (3.4 in)
1951
36.6 mm (1.4 in)
1952
30.0 mm (1.2 in)
1953
73.4 mm (2.9 in)
1954
36.3 mm (1.4 in)
1955
10.5 mm (0.4 in)
1956
7.5 mm (0.30 in)
1957
6.2 mm (0.24 in)
1958
7.2 mm (0.28 in)
1959
9.7 mm (0.38 in)
1960
26.2 mm (1.0 in)
1961
60.8 mm (2.4 in)
1962
55.1 mm (2.2 in)
1964
53.1 mm (2.1 in)
1965
95.5 mm (3.8 in)
1966
121.5 mm (4.8 in)
1967
69.6 mm (2.7 in)
1968
123.8 mm (4.9 in)
1969
110.2 mm (4.3 in)
1970
112.9 mm (4.4 in)
1971
138.9 mm (5.5 in)
1972
90.4 mm (3.6 in)
1973
101.9 mm (4.0 in)
1974
90.9 mm (3.6 in)
1975
119.2 mm (4.7 in)
1976
83.0 mm (3.3 in)
1977
55.6 mm (2.2 in)
1978
86.6 mm (3.4 in)
1979
80.5 mm (3.2 in)
1980
100.3 mm (3.9 in)
1981
59.0 mm (2.3 in)
1982
157.5 mm (6.2 in)
1983
79.5 mm (3.1 in)
1984
69.8 mm (2.7 in)
1985
90.5 mm (3.6 in)
1986
102.4 mm (4.0 in)
1987
45.7 mm (1.8 in)
1988
83.2 mm (3.3 in)
1989
117.4 mm (4.6 in)
1990
98.8 mm (3.9 in)
1991
75.3 mm (3.0 in)
1992
54.3 mm (2.1 in)
1993
54.3 mm (2.1 in)
1994
71.4 mm (2.8 in)
1995
7.5 mm (0.30 in)
1996
125.8 mm (5.0 in)
1997
99.2 mm (3.9 in)
1998
71.6 mm (2.8 in)
1999
74.4 mm (2.9 in)
2000
100.8 mm (4.0 in)
2001
70.7 mm (2.8 in)
2002
61.5 mm (2.4 in)
2003
47.5 mm (1.9 in)
2004
35.5 mm (1.4 in)
2005
51.6 mm (2.0 in)
2006
68.6 mm (2.7 in)
2007
71.7 mm (2.8 in)
2008
80.3 mm (3.2 in)
2009
82.5 mm (3.2 in)
2010
102.1 mm (4.0 in)
2011
74.1 mm (2.9 in)
2012
17.0 mm (0.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at Huichapan, 1903 to 2012. The record is 193 days in 1957, marked on the chart; the median year is 65 days.
Longest dry spell (CDD) at Huichapan by year
Year
Longest dry spell (CDD)
1903
29 days
1904
22 days
1905
18 days
1906
30 days
1907
30 days
1908
30 days
1909
30 days
1910
30 days
1911
27 days
1912
24 days
1916
30 days
1917
30 days
1918
30 days
1919
30 days
1920
34 days
1921
74 days
1922
71 days
1923
38 days
1924
114 days
1925
21 days
1926
68 days
1927
63 days
1928
41 days
1929
67 days
1930
107 days
1932
55 days
1933
89 days
1934
37 days
1935
37 days
1936
46 days
1937
36 days
1938
59 days
1939
100 days
1940
65 days
1941
52 days
1942
118 days
1943
117 days
1944
58 days
1945
58 days
1946
49 days
1947
119 days
1948
71 days
1949
86 days
1950
118 days
1951
71 days
1952
77 days
1953
165 days
1954
98 days
1955
163 days
1956
116 days
1957
193 days
1958
118 days
1959
91 days
1960
174 days
1961
30 days
1962
30 days
1964
22 days
1965
30 days
1966
29 days
1967
30 days
1968
30 days
1969
77 days
1970
80 days
1971
67 days
1972
36 days
1973
101 days
1974
34 days
1975
107 days
1976
71 days
1977
70 days
1978
41 days
1979
105 days
1980
66 days
1981
36 days
1982
77 days
1983
64 days
1984
64 days
1985
71 days
1986
103 days
1987
101 days
1988
106 days
1989
63 days
1990
43 days
1991
151 days
1992
41 days
1993
59 days
1994
70 days
1995
93 days
1996
164 days
1997
75 days
1998
128 days
1999
106 days
2000
65 days
2001
76 days
2002
56 days
2003
98 days
2004
74 days
2005
68 days
2006
56 days
2007
41 days
2008
115 days
2009
117 days
2010
65 days
2011
103 days
2012
37 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
33 years with a frost
Across 33 years with a frost, the median last spring frost at Huichapan falls on 15 February and the median first autumn frost on 29 October, which leaves a median of 254 days between them.
Fitted over all years, the growing season changes by +12.4 days per decade at this station.
Frost dates and growing season at Huichapan
Measure
Median, all years
Earliest period
Recent period (1933 to 2007)
Recent against earliest
Fitted trend
Last spring frost
15 February
n/a
15 February
n/a
-8.4 days per decade
First autumn frost
29 October
n/a
28 October
n/a
+3.9 days per decade
Growing days
254 days
n/a
254 days
n/a
+12.4 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
90 years, 1906 to 2011
A day with at least 40.8 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 115.4 mm (4.5 in) of rain is expected about once in 100 years.
Rainfall return levels at Huichapan: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
40.8 mm (1.6 in)
5 years
62.5 mm (2.5 in)
10 years
76.1 mm (3.0 in)
25 years
92.6 mm (3.6 in)
50 years
104.2 mm (4.1 in)
100 years
115.4 mm (4.5 in)
Longer than the 90 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, 90 years of values from 1906 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: 169.9 mm (6.7 in) in 1923; 149.9 mm (5.9 in) in 1922; 112.3 mm (4.4 in) in 1906.
Download the Data
Data for Huichapan standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Huichapan 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.