Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Actopan. 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 Actopan, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
36.1 C (97.0 F)
6.7 C (44.1 F)
n/a
n/a
Feb
38.3 C (100.9 F)
5.6 C (42.1 F)
n/a
n/a
Mar
41.7 C (107.1 F)
6.7 C (44.1 F)
n/a
n/a
Apr
43.3 C (109.9 F)
10.0 C (50.0 F)
n/a
n/a
May
43.9 C (111.0 F)
13.3 C (55.9 F)
n/a
n/a
Jun
42.8 C (109.0 F)
15.0 C (59.0 F)
n/a
n/a
Jul
38.9 C (102.0 F)
16.1 C (61.0 F)
n/a
n/a
Aug
37.8 C (100.0 F)
15.6 C (60.1 F)
n/a
n/a
Sep
38.3 C (100.9 F)
13.9 C (57.0 F)
n/a
n/a
Oct
36.7 C (98.1 F)
10.6 C (51.1 F)
n/a
n/a
Nov
36.7 C (98.1 F)
7.8 C (46.0 F)
n/a
n/a
Dec
35.6 C (96.1 F)
5.0 C (41.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Actopan still stand. 1998 holds the most, with 63.
Standing records at Actopan by the year they were set
Year set
Standing records
1952
23
1953
25
1954
35
1955
25
1956
35
1957
43
1958
20
1959
28
1960
33
1961
33
1962
23
1963
22
1964
17
1965
21
1966
32
1967
17
1968
20
1969
37
1970
34
1971
23
1972
29
1973
34
1974
26
1975
14
1976
24
1977
25
1978
11
1979
26
1980
19
1981
13
1982
14
1983
28
1984
30
1985
11
1986
16
1987
28
1988
16
1989
21
1990
11
1991
27
1992
19
1993
17
1994
11
1995
20
1996
18
1997
29
1998
63
1999
18
2000
23
2001
30
2002
28
2003
13
2004
44
2005
17
2006
31
2007
34
2008
17
2009
14
2010
35
2011
14
All-Time Record Progression
2 new records
2 all-time records were set at Actopan between 24 December 1989 and 8 May 1998. Each dot is a new record.
When Actopan set new all-time records
Date
Kind
Detail
1989-12-24
Record low minimum temperature
Record low minimum temperature 5.0 C (41.0 F)
1998-05-08
Record high maximum temperature
Record high maximum temperature 43.9 C (111.0 F)
Wettest Day of Each Month
Aug: 189.0 mm (7.4 in)
The wettest day on record for each calendar month at Actopan. The most was 189.0 mm (7.4 in) on 5 August 1979.
Record daily precipitation for each month at Actopan
Month
Record daily precipitation (mm)
Date
Jan
39.9 mm (1.6 in)
22 January 1994
Feb
44.2 mm (1.7 in)
20 February 1990
Mar
23.6 mm (0.9 in)
2 March 1995
Apr
61.2 mm (2.4 in)
30 April 1955
May
61.7 mm (2.4 in)
16 May 1996
Jun
183.4 mm (7.2 in)
20 June 1973
Jul
169.7 mm (6.7 in)
30 July 1961
Aug
189.0 mm (7.4 in)
5 August 1979
Sep
180.1 mm (7.1 in)
20 September 1974
Oct
124.2 mm (4.9 in)
20 October 1995
Nov
100.8 mm (4.0 in)
11 November 1986
Dec
28.7 mm (1.1 in)
23 December 1962
Period of Record Coverage
1952 to 2011
Complete yearUnder 90 percent of days
60 years of record at Actopan, 1952 to 2011. 2 years have data for under 90 percent of days and are left out of rankings: 1952, 1965.
Cooler than the station meanWarmer than the station mean
One stripe for each of 56 complete years at Actopan, 1953 to 2010. Blue stripes are years cooler than the station's own mean of 24.6 C (76.3 F); red stripes are warmer. The coolest year was 2010, at 23.3 C (74.0 F), and the warmest was 1998, at 25.7 C (78.3 F). The strongest colour marks a difference of 1.3 C (2.3 F).
Annual mean temperature at Actopan as warming stripes, 1953 to 2010
Year
Annual mean temperature
Difference from the station mean
1953
25.0 C
+0.40 C
1954
24.2 C
-0.39 C
1955
24.3 C
-0.28 C
1956
24.4 C
-0.21 C
1957
25.2 C
+0.58 C
1959
24.5 C
-0.09 C
1960
24.4 C
-0.22 C
1961
24.7 C
+0.12 C
1962
24.6 C
-0.02 C
1963
24.3 C
-0.25 C
1964
24.7 C
+0.12 C
1966
24.2 C
-0.42 C
1967
24.3 C
-0.29 C
1968
24.3 C
-0.26 C
1969
24.7 C
+0.06 C
1970
23.9 C
-0.65 C
1971
24.5 C
-0.12 C
1972
25.0 C
+0.45 C
1973
24.4 C
-0.18 C
1974
24.2 C
-0.42 C
1975
24.6 C
+0.00 C
1976
23.9 C
-0.67 C
1977
24.2 C
-0.38 C
1978
24.2 C
-0.40 C
1979
24.1 C
-0.48 C
1980
24.2 C
-0.37 C
1981
24.3 C
-0.25 C
1982
24.9 C
+0.34 C
1983
24.6 C
+0.01 C
1984
24.3 C
-0.34 C
1985
24.4 C
-0.18 C
1986
24.1 C
-0.51 C
1987
24.0 C
-0.60 C
1988
24.1 C
-0.50 C
1989
24.4 C
-0.21 C
1990
24.3 C
-0.26 C
1991
24.8 C
+0.19 C
1992
24.2 C
-0.41 C
1993
24.7 C
+0.11 C
1994
25.0 C
+0.36 C
1995
25.0 C
+0.39 C
1996
24.2 C
-0.35 C
1997
24.6 C
+0.03 C
1998
25.7 C
+1.12 C
1999
25.1 C
+0.51 C
2000
25.3 C
+0.69 C
2001
25.2 C
+0.65 C
2002
25.4 C
+0.83 C
2003
25.4 C
+0.84 C
2004
25.5 C
+0.86 C
2005
25.3 C
+0.67 C
2006
25.4 C
+0.80 C
2007
25.4 C
+0.84 C
2008
24.8 C
+0.18 C
2009
24.2 C
-0.40 C
2010
23.3 C
-1.26 C
The annual mean temperature here has risen by 0.10 C (0.02 to 0.17) per decade over 1953 to 2010. In Fahrenheit: 0.17 F (0.04 to 0.31) per decade. The slope is a straight line fitted to 56 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Actopan
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.10 C (0.02 to 0.17) per decade
0.17 F (0.04 to 0.31) per decade
1953 to 2010
56
Rise
Mean daily maximum
0.2 C (0.1 to 0.3) per decade
0.4 F (0.2 to 0.6) per decade
1953 to 2010
56
Rise
Mean daily minimum
-0.02 C (-0.08 to 0.04) per decade
-0.04 F (-0.14 to 0.07) per decade
1953 to 2010
56
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
1952 to 2011
Yearly extremes at Actopan: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.9 C (111.0 F)
1998
38.9 C (102.0 F)
60
Coldest night (TNn)
5.0 C (41.0 F)
1989
10.0 C (50.0 F)
60
Wettest day (Rx1day)
189.0 mm (7.4 in)
1979
83.1 mm (3.3 in)
60
Wettest five days (Rx5day)
340.6 mm (13.4 in)
1972
146.2 mm (5.8 in)
60
Longest dry spell (CDD)
115 days
1971
45 days
60
Hottest day (TXx)
The hottest day of the year at Actopan, 1952 to 2011. The record is 43.9 C (111.0 F) in 1998, marked on the chart; the median year is 38.9 C (102.0 F).
Hottest day (TXx) at Actopan by year
Year
Hottest day (TXx)
1952
35.0 C (95.0 F)
1953
43.3 C (109.9 F)
1954
38.3 C (100.9 F)
1955
38.3 C (100.9 F)
1956
38.3 C (100.9 F)
1957
38.9 C (102.0 F)
1958
40.0 C (104.0 F)
1959
39.4 C (102.9 F)
1960
37.8 C (100.0 F)
1961
40.0 C (104.0 F)
1962
39.4 C (102.9 F)
1963
38.3 C (100.9 F)
1964
40.0 C (104.0 F)
1965
38.3 C (100.9 F)
1966
37.8 C (100.0 F)
1967
38.9 C (102.0 F)
1968
38.9 C (102.0 F)
1969
41.1 C (106.0 F)
1970
37.2 C (99.0 F)
1971
39.4 C (102.9 F)
1972
38.9 C (102.0 F)
1973
40.6 C (105.1 F)
1974
38.9 C (102.0 F)
1975
38.9 C (102.0 F)
1976
38.9 C (102.0 F)
1977
36.1 C (97.0 F)
1978
37.8 C (100.0 F)
1979
39.4 C (102.9 F)
1980
39.4 C (102.9 F)
1981
38.3 C (100.9 F)
1982
39.4 C (102.9 F)
1983
41.7 C (107.1 F)
1984
40.6 C (105.1 F)
1985
37.8 C (100.0 F)
1986
37.2 C (99.0 F)
1987
36.7 C (98.1 F)
1988
37.8 C (100.0 F)
1989
39.4 C (102.9 F)
1990
38.9 C (102.0 F)
1991
38.9 C (102.0 F)
1992
36.7 C (98.1 F)
1993
36.1 C (97.0 F)
1994
38.3 C (100.9 F)
1995
39.4 C (102.9 F)
1996
37.2 C (99.0 F)
1997
38.9 C (102.0 F)
1998
43.9 C (111.0 F)
1999
42.2 C (108.0 F)
2000
40.0 C (104.0 F)
2001
40.0 C (104.0 F)
2002
40.0 C (104.0 F)
2003
40.0 C (104.0 F)
2004
41.1 C (106.0 F)
2005
40.0 C (104.0 F)
2006
40.6 C (105.1 F)
2007
38.9 C (102.0 F)
2008
40.0 C (104.0 F)
2009
36.7 C (98.1 F)
2010
39.4 C (102.9 F)
2011
40.6 C (105.1 F)
Coldest night (TNn)
The coldest night of the year at Actopan, 1952 to 2011. The record is 5.0 C (41.0 F) in 1989, marked on the chart; the median year is 10.0 C (50.0 F).
Coldest night (TNn) at Actopan by year
Year
Coldest night (TNn)
1952
12.2 C (54.0 F)
1953
10.0 C (50.0 F)
1954
8.3 C (46.9 F)
1955
10.0 C (50.0 F)
1956
8.9 C (48.0 F)
1957
8.9 C (48.0 F)
1958
8.3 C (46.9 F)
1959
10.6 C (51.1 F)
1960
5.6 C (42.1 F)
1961
10.0 C (50.0 F)
1962
7.2 C (45.0 F)
1963
7.2 C (45.0 F)
1964
10.0 C (50.0 F)
1965
8.9 C (48.0 F)
1966
10.0 C (50.0 F)
1967
10.0 C (50.0 F)
1968
10.0 C (50.0 F)
1969
9.4 C (48.9 F)
1970
7.8 C (46.0 F)
1971
10.6 C (51.1 F)
1972
11.1 C (52.0 F)
1973
6.7 C (44.1 F)
1974
10.6 C (51.1 F)
1975
10.0 C (50.0 F)
1976
7.8 C (46.0 F)
1977
8.9 C (48.0 F)
1978
10.6 C (51.1 F)
1979
9.4 C (48.9 F)
1980
9.4 C (48.9 F)
1981
10.0 C (50.0 F)
1982
8.3 C (46.9 F)
1983
7.8 C (46.0 F)
1984
10.6 C (51.1 F)
1985
8.3 C (46.9 F)
1986
7.2 C (45.0 F)
1987
6.7 C (44.1 F)
1988
10.0 C (50.0 F)
1989
5.0 C (41.0 F)
1990
9.4 C (48.9 F)
1991
10.0 C (50.0 F)
1992
10.0 C (50.0 F)
1993
10.0 C (50.0 F)
1994
10.0 C (50.0 F)
1995
12.2 C (54.0 F)
1996
7.2 C (45.0 F)
1997
7.2 C (45.0 F)
1998
10.0 C (50.0 F)
1999
11.1 C (52.0 F)
2000
10.6 C (51.1 F)
2001
10.0 C (50.0 F)
2002
10.0 C (50.0 F)
2003
8.9 C (48.0 F)
2004
11.7 C (53.1 F)
2005
9.4 C (48.9 F)
2006
10.0 C (50.0 F)
2007
11.7 C (53.1 F)
2008
10.6 C (51.1 F)
2009
10.0 C (50.0 F)
2010
8.9 C (48.0 F)
2011
7.8 C (46.0 F)
Wettest day (Rx1day)
The wettest day of the year at Actopan, 1952 to 2011. The record is 189.0 mm (7.4 in) in 1979, marked on the chart; the median year is 83.1 mm (3.3 in).
Wettest day (Rx1day) at Actopan by year
Year
Wettest day (Rx1day)
1952
141.0 mm (5.6 in)
1953
31.0 mm (1.2 in)
1954
78.2 mm (3.1 in)
1955
108.5 mm (4.3 in)
1956
93.2 mm (3.7 in)
1957
76.2 mm (3.0 in)
1958
99.3 mm (3.9 in)
1959
57.7 mm (2.3 in)
1960
143.3 mm (5.6 in)
1961
169.7 mm (6.7 in)
1962
110.0 mm (4.3 in)
1963
117.3 mm (4.6 in)
1964
75.4 mm (3.0 in)
1965
60.7 mm (2.4 in)
1966
114.0 mm (4.5 in)
1967
67.6 mm (2.7 in)
1968
50.5 mm (2.0 in)
1969
107.4 mm (4.2 in)
1970
84.8 mm (3.3 in)
1971
60.2 mm (2.4 in)
1972
160.0 mm (6.3 in)
1973
183.4 mm (7.2 in)
1974
180.1 mm (7.1 in)
1975
76.7 mm (3.0 in)
1976
69.1 mm (2.7 in)
1977
42.2 mm (1.7 in)
1978
64.0 mm (2.5 in)
1979
189.0 mm (7.4 in)
1980
58.4 mm (2.3 in)
1981
113.8 mm (4.5 in)
1982
102.9 mm (4.1 in)
1983
54.9 mm (2.2 in)
1984
100.3 mm (3.9 in)
1985
73.2 mm (2.9 in)
1986
100.8 mm (4.0 in)
1987
46.2 mm (1.8 in)
1988
51.6 mm (2.0 in)
1989
137.4 mm (5.4 in)
1990
71.6 mm (2.8 in)
1991
71.4 mm (2.8 in)
1992
101.1 mm (4.0 in)
1993
84.1 mm (3.3 in)
1994
64.3 mm (2.5 in)
1995
124.2 mm (4.9 in)
1996
87.4 mm (3.4 in)
1997
73.2 mm (2.9 in)
1998
63.8 mm (2.5 in)
1999
147.1 mm (5.8 in)
2000
113.0 mm (4.4 in)
2001
63.0 mm (2.5 in)
2002
56.4 mm (2.2 in)
2003
56.4 mm (2.2 in)
2004
82.0 mm (3.2 in)
2005
111.5 mm (4.4 in)
2006
99.3 mm (3.9 in)
2007
142.7 mm (5.6 in)
2008
73.9 mm (2.9 in)
2009
79.5 mm (3.1 in)
2010
150.4 mm (5.9 in)
2011
63.8 mm (2.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Actopan, 1952 to 2011. The record is 340.6 mm (13.4 in) in 1972, marked on the chart; the median year is 146.2 mm (5.8 in).
Wettest five days (Rx5day) at Actopan by year
Year
Wettest five days (Rx5day)
1952
218.2 mm (8.6 in)
1953
54.5 mm (2.1 in)
1954
149.4 mm (5.9 in)
1955
324.9 mm (12.8 in)
1956
142.6 mm (5.6 in)
1957
87.9 mm (3.5 in)
1958
218.2 mm (8.6 in)
1959
97.3 mm (3.8 in)
1960
182.3 mm (7.2 in)
1961
203.5 mm (8.0 in)
1962
258.1 mm (10.2 in)
1963
277.3 mm (10.9 in)
1964
130.7 mm (5.1 in)
1965
110.3 mm (4.3 in)
1966
192.7 mm (7.6 in)
1967
125.5 mm (4.9 in)
1968
109.2 mm (4.3 in)
1969
149.2 mm (5.9 in)
1970
130.2 mm (5.1 in)
1971
96.0 mm (3.8 in)
1972
340.6 mm (13.4 in)
1973
255.0 mm (10.0 in)
1974
334.5 mm (13.2 in)
1975
258.3 mm (10.2 in)
1976
256.0 mm (10.1 in)
1977
97.0 mm (3.8 in)
1978
101.9 mm (4.0 in)
1979
207.5 mm (8.2 in)
1980
138.4 mm (5.4 in)
1981
167.2 mm (6.6 in)
1982
121.3 mm (4.8 in)
1983
221.0 mm (8.7 in)
1984
180.1 mm (7.1 in)
1985
82.1 mm (3.2 in)
1986
165.0 mm (6.5 in)
1987
94.6 mm (3.7 in)
1988
100.1 mm (3.9 in)
1989
143.2 mm (5.6 in)
1990
124.7 mm (4.9 in)
1991
129.4 mm (5.1 in)
1992
185.5 mm (7.3 in)
1993
236.8 mm (9.3 in)
1994
72.9 mm (2.9 in)
1995
124.5 mm (4.9 in)
1996
129.9 mm (5.1 in)
1997
175.5 mm (6.9 in)
1998
99.9 mm (3.9 in)
1999
157.3 mm (6.2 in)
2000
170.6 mm (6.7 in)
2001
118.2 mm (4.7 in)
2002
75.0 mm (3.0 in)
2003
84.1 mm (3.3 in)
2004
137.6 mm (5.4 in)
2005
237.5 mm (9.4 in)
2006
178.3 mm (7.0 in)
2007
180.6 mm (7.1 in)
2008
132.4 mm (5.2 in)
2009
110.8 mm (4.4 in)
2010
185.4 mm (7.3 in)
2011
182.4 mm (7.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at Actopan, 1952 to 2011. The record is 115 days in 1971, marked on the chart; the median year is 45 days.
Longest dry spell (CDD) at Actopan by year
Year
Longest dry spell (CDD)
1952
33 days
1953
56 days
1954
60 days
1955
35 days
1956
32 days
1957
39 days
1958
24 days
1959
33 days
1960
47 days
1961
52 days
1962
68 days
1963
63 days
1964
41 days
1965
33 days
1966
50 days
1967
67 days
1968
30 days
1969
33 days
1970
99 days
1971
115 days
1972
58 days
1973
35 days
1974
54 days
1975
63 days
1976
42 days
1977
44 days
1978
53 days
1979
57 days
1980
66 days
1981
33 days
1982
71 days
1983
86 days
1984
46 days
1985
67 days
1986
42 days
1987
40 days
1988
30 days
1989
39 days
1990
39 days
1991
97 days
1992
26 days
1993
45 days
1994
23 days
1995
35 days
1996
35 days
1997
31 days
1998
63 days
1999
41 days
2000
44 days
2001
51 days
2002
58 days
2003
55 days
2004
47 days
2005
38 days
2006
28 days
2007
35 days
2008
46 days
2009
55 days
2010
43 days
2011
88 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.
Rainfall Return Levels
58 years, 1953 to 2011
A day with at least 86.1 mm (3.4 in) of rain is expected about once in 2 years. A day with at least 225.2 mm (8.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Actopan: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
86.1 mm (3.4 in)
5 years
120.4 mm (4.7 in)
10 years
144.2 mm (5.7 in)
25 years
175.7 mm (6.9 in)
50 years
200.1 mm (7.9 in)
100 years
225.2 mm (8.9 in)
Longer than the 58 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, 58 years of values from 1953 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: 189.0 mm (7.4 in) in 1979; 183.4 mm (7.2 in) in 1973; 180.1 mm (7.1 in) in 1974.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Actopan, at 1988. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1988 ran 0.5 C (0.9 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Actopan, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1988
-0.5
-0.9
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.
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Data for Actopan standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Actopan 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.