Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Presa Achimec. 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 Presa Achimec, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
30.0 C (86.0 F)
-7.8 C (18.0 F)
n/a
n/a
Feb
33.9 C (93.0 F)
-5.0 C (23.0 F)
n/a
n/a
Mar
35.0 C (95.0 F)
-3.9 C (25.0 F)
n/a
n/a
Apr
36.7 C (98.1 F)
0.0 C (32.0 F)
n/a
n/a
May
38.3 C (100.9 F)
2.8 C (37.0 F)
n/a
n/a
Jun
37.8 C (100.0 F)
6.7 C (44.1 F)
n/a
n/a
Jul
35.6 C (96.1 F)
7.2 C (45.0 F)
n/a
n/a
Aug
33.9 C (93.0 F)
7.8 C (46.0 F)
n/a
n/a
Sep
32.8 C (91.0 F)
3.9 C (39.0 F)
n/a
n/a
Oct
35.0 C (95.0 F)
-1.7 C (28.9 F)
n/a
n/a
Nov
31.7 C (89.1 F)
-5.0 C (23.0 F)
n/a
n/a
Dec
34.4 C (93.9 F)
-6.7 C (19.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Presa Achimec still stand. 2010 holds the most, with 67.
Standing records at Presa Achimec by the year they were set
Year set
Standing records
1969
43
1970
28
1971
38
1972
47
1973
51
1974
40
1975
16
1976
57
1977
34
1978
39
1979
46
1980
24
1981
19
1982
26
1983
34
1984
29
1985
37
1986
20
1987
39
1988
39
1989
36
1990
23
1991
35
1992
58
1993
28
1994
31
1995
38
1996
33
1997
47
1998
58
1999
34
2000
33
2001
40
2002
32
2003
13
2006
27
2007
26
2009
55
2010
67
2011
44
All-Time Record Progression
5 new records
5 all-time records were set at Presa Achimec between 18 January 2006 and 21 June 2011. Each dot is a new record.
When Presa Achimec set new all-time records
Date
Kind
Detail
2006-01-18
Record low minimum temperature
Record low minimum temperature -7.8 C (18.0 F)
2009-11-30
Record daily precipitation
Record daily precipitation 68.1 mm (2.7 in)
2010-02-02
Record daily precipitation
Record daily precipitation 69.1 mm (2.7 in)
2010-05-07
Record high maximum temperature
Record high maximum temperature 38.3 C (100.9 F)
2011-06-21
Record high minimum temperature
Record high minimum temperature 19.4 C (66.9 F)
Wettest Day of Each Month
Feb: 69.1 mm (2.7 in)
The wettest day on record for each calendar month at Presa Achimec. The most was 69.1 mm (2.7 in) on 2 February 2010.
Record daily precipitation for each month at Presa Achimec
Month
Record daily precipitation (mm)
Date
Jan
55.4 mm (2.2 in)
12 January 1987
Feb
69.1 mm (2.7 in)
2 February 2010
Mar
9.7 mm (0.38 in)
7 March 1988
Apr
19.1 mm (0.8 in)
13 April 1997
May
59.9 mm (2.4 in)
27 May 1971
Jun
63.0 mm (2.5 in)
23 June 1970
Jul
64.8 mm (2.6 in)
11 July 1991
Aug
57.2 mm (2.3 in)
13 August 1990
Sep
53.8 mm (2.1 in)
14 September 1971
Oct
55.9 mm (2.2 in)
9 October 1971
Nov
68.1 mm (2.7 in)
30 November 2009
Dec
34.8 mm (1.4 in)
2 December 1979
Period of Record Coverage
1969 to 2011
Complete yearUnder 90 percent of days
40 years of record at Presa Achimec, 1969 to 2011. 8 years have data for under 90 percent of days and are left out of rankings: 1969, 1970, 1980, 1981, 1982, 1986, 2003, 2011.
Cooler than the station meanWarmer than the station mean
One stripe for each of 30 complete years at Presa Achimec, 1971 to 2009. Blue stripes are years cooler than the station's own mean of 17.9 C (64.2 F); red stripes are warmer. The coolest year was 1987, at 17.1 C (62.8 F), and the warmest was 2009, at 18.7 C (65.6 F). The strongest colour marks a difference of 0.8 C (1.4 F).
Annual mean temperature at Presa Achimec as warming stripes, 1971 to 2009
Year
Annual mean temperature
Difference from the station mean
1971
17.9 C
+0.01 C
1972
18.4 C
+0.56 C
1973
17.7 C
-0.13 C
1974
17.7 C
-0.14 C
1975
17.7 C
-0.20 C
1976
17.4 C
-0.46 C
1977
17.7 C
-0.20 C
1978
17.9 C
+0.06 C
1979
17.8 C
-0.03 C
1984
17.3 C
-0.62 C
1985
17.6 C
-0.25 C
1987
17.1 C
-0.76 C
1988
17.7 C
-0.13 C
1989
18.0 C
+0.08 C
1990
17.9 C
+0.02 C
1991
17.6 C
-0.28 C
1992
17.2 C
-0.67 C
1993
17.7 C
-0.17 C
1994
18.1 C
+0.26 C
1995
18.0 C
+0.12 C
1996
17.8 C
-0.11 C
1997
17.7 C
-0.19 C
1998
18.5 C
+0.59 C
1999
17.9 C
+0.02 C
2000
18.1 C
+0.23 C
2001
18.2 C
+0.30 C
2002
18.4 C
+0.52 C
2006
18.4 C
+0.56 C
2007
18.2 C
+0.28 C
2009
18.7 C
+0.79 C
The annual mean temperature here has risen by 0.15 C (0.04 to 0.27) per decade over 1971 to 2009. In Fahrenheit: 0.3 F (0.1 to 0.5) per decade. The slope is a straight line fitted to 30 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Presa Achimec
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.15 C (0.04 to 0.27) per decade
0.3 F (0.1 to 0.5) per decade
1971 to 2009
30
Rise
Mean daily maximum
0.7 C (0.5 to 0.9) per decade
1.3 F (1.0 to 1.6) per decade
1971 to 2009
30
Rise
Mean daily minimum
-0.4 C (-0.6 to -0.2) per decade
-0.7 F (-1.0 to -0.4) per decade
1971 to 2009
30
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
1969 to 2011
Yearly extremes at Presa Achimec: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.3 C (100.9 F)
2010
35.6 C (96.1 F)
40
Coldest night (TNn)
-7.8 C (18.0 F)
2006
-3.3 C (26.1 F)
40
Wettest day (Rx1day)
69.1 mm (2.7 in)
2010
39.0 mm (1.5 in)
40
Wettest five days (Rx5day)
171.2 mm (6.7 in)
1988
76.5 mm (3.0 in)
40
Longest dry spell (CDD)
164 days
1995
98 days
40
Hottest day (TXx)
The hottest day of the year at Presa Achimec, 1969 to 2011. The record is 38.3 C (100.9 F) in 2010, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at Presa Achimec by year
Year
Hottest day (TXx)
1969
35.6 C (96.1 F)
1970
35.0 C (95.0 F)
1971
33.9 C (93.0 F)
1972
35.0 C (95.0 F)
1973
35.6 C (96.1 F)
1974
35.6 C (96.1 F)
1975
33.9 C (93.0 F)
1976
33.9 C (93.0 F)
1977
32.8 C (91.0 F)
1978
35.0 C (95.0 F)
1979
36.7 C (98.1 F)
1980
36.7 C (98.1 F)
1981
33.3 C (91.9 F)
1982
35.6 C (96.1 F)
1983
36.7 C (98.1 F)
1984
34.4 C (93.9 F)
1985
36.1 C (97.0 F)
1986
35.6 C (96.1 F)
1987
34.4 C (93.9 F)
1988
35.6 C (96.1 F)
1989
37.2 C (99.0 F)
1990
37.8 C (100.0 F)
1991
35.6 C (96.1 F)
1992
35.6 C (96.1 F)
1993
36.7 C (98.1 F)
1994
35.6 C (96.1 F)
1995
36.7 C (98.1 F)
1996
36.7 C (98.1 F)
1997
35.6 C (96.1 F)
1998
36.7 C (98.1 F)
1999
36.7 C (98.1 F)
2000
36.7 C (98.1 F)
2001
35.6 C (96.1 F)
2002
36.7 C (98.1 F)
2003
32.8 C (91.0 F)
2006
35.6 C (96.1 F)
2007
36.7 C (98.1 F)
2009
37.2 C (99.0 F)
2010
38.3 C (100.9 F)
2011
38.3 C (100.9 F)
Coldest night (TNn)
The coldest night of the year at Presa Achimec, 1969 to 2011. The record is -7.8 C (18.0 F) in 2006, marked on the chart; the median year is -3.3 C (26.1 F).
Coldest night (TNn) at Presa Achimec by year
Year
Coldest night (TNn)
1969
-3.3 C (26.1 F)
1970
-2.2 C (28.0 F)
1971
-2.2 C (28.0 F)
1972
-2.2 C (28.0 F)
1973
-2.8 C (27.0 F)
1974
-2.2 C (28.0 F)
1975
-3.3 C (26.1 F)
1976
-3.3 C (26.1 F)
1977
0.0 C (32.0 F)
1978
-2.8 C (27.0 F)
1979
-5.0 C (23.0 F)
1980
-2.2 C (28.0 F)
1981
-3.3 C (26.1 F)
1982
-2.2 C (28.0 F)
1983
-2.2 C (28.0 F)
1984
-5.0 C (23.0 F)
1985
-6.1 C (21.0 F)
1986
-2.2 C (28.0 F)
1987
-2.8 C (27.0 F)
1988
-6.7 C (19.9 F)
1989
-4.4 C (24.1 F)
1990
-2.8 C (27.0 F)
1991
-5.0 C (23.0 F)
1992
-4.4 C (24.1 F)
1993
-4.4 C (24.1 F)
1994
-5.0 C (23.0 F)
1995
-4.4 C (24.1 F)
1996
-3.3 C (26.1 F)
1997
-5.6 C (21.9 F)
1998
-4.4 C (24.1 F)
1999
-4.4 C (24.1 F)
2000
-3.9 C (25.0 F)
2001
-5.0 C (23.0 F)
2002
-5.0 C (23.0 F)
2003
-3.3 C (26.1 F)
2006
-7.8 C (18.0 F)
2007
-2.8 C (27.0 F)
2009
-2.2 C (28.0 F)
2010
-5.0 C (23.0 F)
2011
-4.4 C (24.1 F)
Wettest day (Rx1day)
The wettest day of the year at Presa Achimec, 1969 to 2011. The record is 69.1 mm (2.7 in) in 2010, marked on the chart; the median year is 39.0 mm (1.5 in).
Wettest day (Rx1day) at Presa Achimec by year
Year
Wettest day (Rx1day)
1969
31.5 mm (1.2 in)
1970
63.0 mm (2.5 in)
1971
59.9 mm (2.4 in)
1972
30.7 mm (1.2 in)
1973
50.0 mm (2.0 in)
1974
34.3 mm (1.4 in)
1975
39.4 mm (1.6 in)
1976
44.2 mm (1.7 in)
1977
34.8 mm (1.4 in)
1978
40.4 mm (1.6 in)
1979
34.8 mm (1.4 in)
1980
38.4 mm (1.5 in)
1981
26.4 mm (1.0 in)
1982
46.7 mm (1.8 in)
1983
35.1 mm (1.4 in)
1984
38.6 mm (1.5 in)
1985
37.1 mm (1.5 in)
1986
45.2 mm (1.8 in)
1987
55.4 mm (2.2 in)
1988
48.8 mm (1.9 in)
1989
32.0 mm (1.3 in)
1990
57.2 mm (2.3 in)
1991
64.8 mm (2.6 in)
1992
39.9 mm (1.6 in)
1993
37.1 mm (1.5 in)
1994
36.3 mm (1.4 in)
1995
53.8 mm (2.1 in)
1996
37.3 mm (1.5 in)
1997
26.4 mm (1.0 in)
1998
39.9 mm (1.6 in)
1999
32.0 mm (1.3 in)
2000
42.4 mm (1.7 in)
2001
29.0 mm (1.1 in)
2002
37.8 mm (1.5 in)
2003
5.8 mm (0.23 in)
2006
55.4 mm (2.2 in)
2007
46.5 mm (1.8 in)
2009
68.1 mm (2.7 in)
2010
69.1 mm (2.7 in)
2011
23.4 mm (0.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Presa Achimec, 1969 to 2011. The record is 171.2 mm (6.7 in) in 1988, marked on the chart; the median year is 76.5 mm (3.0 in).
Wettest five days (Rx5day) at Presa Achimec by year
Year
Wettest five days (Rx5day)
1969
80.7 mm (3.2 in)
1970
155.5 mm (6.1 in)
1971
99.3 mm (3.9 in)
1972
50.5 mm (2.0 in)
1973
96.0 mm (3.8 in)
1974
68.1 mm (2.7 in)
1975
84.6 mm (3.3 in)
1976
92.2 mm (3.6 in)
1977
50.6 mm (2.0 in)
1978
65.6 mm (2.6 in)
1979
57.0 mm (2.2 in)
1980
68.4 mm (2.7 in)
1981
49.4 mm (1.9 in)
1982
69.7 mm (2.7 in)
1983
76.5 mm (3.0 in)
1984
76.5 mm (3.0 in)
1985
95.1 mm (3.7 in)
1986
68.3 mm (2.7 in)
1987
93.7 mm (3.7 in)
1988
171.2 mm (6.7 in)
1989
67.1 mm (2.6 in)
1990
156.1 mm (6.1 in)
1991
121.2 mm (4.8 in)
1992
97.8 mm (3.9 in)
1993
75.3 mm (3.0 in)
1994
69.7 mm (2.7 in)
1995
92.2 mm (3.6 in)
1996
87.9 mm (3.5 in)
1997
42.4 mm (1.7 in)
1998
89.8 mm (3.5 in)
1999
67.3 mm (2.6 in)
2000
73.4 mm (2.9 in)
2001
72.1 mm (2.8 in)
2002
64.5 mm (2.5 in)
2003
5.8 mm (0.23 in)
2006
111.1 mm (4.4 in)
2007
97.5 mm (3.8 in)
2009
85.2 mm (3.4 in)
2010
117.9 mm (4.6 in)
2011
45.7 mm (1.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Presa Achimec, 1969 to 2011. The record is 164 days in 1995, marked on the chart; the median year is 98 days.
Longest dry spell (CDD) at Presa Achimec by year
Year
Longest dry spell (CDD)
1969
105 days
1970
102 days
1971
129 days
1972
126 days
1973
84 days
1974
75 days
1975
134 days
1976
157 days
1977
86 days
1978
81 days
1979
81 days
1980
96 days
1981
31 days
1982
106 days
1983
72 days
1984
101 days
1985
81 days
1986
89 days
1987
79 days
1988
97 days
1989
146 days
1990
111 days
1991
122 days
1992
61 days
1993
103 days
1994
105 days
1995
164 days
1996
71 days
1997
39 days
1998
112 days
1999
98 days
2000
118 days
2001
65 days
2002
82 days
2003
52 days
2006
106 days
2007
109 days
2009
109 days
2010
95 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.
Frost Dates and Growing Season
25 years with a frost
Across 25 years with a frost, the median last spring frost at Presa Achimec falls on 14 March and the median first autumn frost on 26 November, which leaves a median of 257 days between them.
Fitted over all years, the growing season changes by -9.9 days per decade at this station.
Frost dates and growing season at Presa Achimec
Measure
Median, all years
Earliest period
Recent period (1973 to 2009)
Recent against earliest
Fitted trend
Last spring frost
14 March
n/a
14 March
n/a
+2.7 days per decade
First autumn frost
26 November
n/a
26 November
n/a
-7.2 days per decade
Growing days
257 days
n/a
257 days
n/a
-9.9 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
33 years, 1970 to 2010
A day with at least 41.5 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 86.4 mm (3.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Presa Achimec: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
41.5 mm (1.6 in)
5 years
52.5 mm (2.1 in)
10 years
60.1 mm (2.4 in)
25 years
70.3 mm (2.8 in)
50 years
78.2 mm (3.1 in)
Longer than the 33 years of record
100 years
86.4 mm (3.4 in)
Longer than the 33 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, 33 years of values from 1970 to 2010.
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: 69.1 mm (2.7 in) in 2010; 68.1 mm (2.7 in) in 2009; 64.8 mm (2.6 in) in 1991.
Download the Data
Data for Presa Achimec standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Presa Achimec 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.