Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Jasso. 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 Jasso, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
31.1 C (88.0 F)
-10.0 C (14.0 F)
n/a
n/a
Feb
32.8 C (91.0 F)
-7.2 C (19.0 F)
n/a
n/a
Mar
35.0 C (95.0 F)
-5.0 C (23.0 F)
n/a
n/a
Apr
36.1 C (97.0 F)
-3.3 C (26.1 F)
n/a
n/a
May
36.7 C (98.1 F)
-1.1 C (30.0 F)
n/a
n/a
Jun
35.0 C (95.0 F)
1.7 C (35.1 F)
n/a
n/a
Jul
32.2 C (90.0 F)
2.8 C (37.0 F)
n/a
n/a
Aug
30.6 C (87.1 F)
0.6 C (33.1 F)
n/a
n/a
Sep
31.7 C (89.1 F)
-3.3 C (26.1 F)
n/a
n/a
Oct
30.6 C (87.1 F)
-6.1 C (21.0 F)
n/a
n/a
Nov
32.8 C (91.0 F)
-10.0 C (14.0 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 Jasso still stand. 1998 holds the most, with 61.
Standing records at Jasso by the year they were set
Year set
Standing records
1951
47
1952
36
1953
34
1954
22
1955
34
1956
17
1957
15
1958
33
1959
17
1960
25
1961
30
1962
35
1963
17
1964
27
1965
20
1966
22
1967
20
1968
7
1969
22
1970
18
1971
9
1972
16
1973
28
1974
8
1975
21
1976
19
1977
33
1978
17
1979
34
1980
13
1981
17
1982
19
1983
28
1984
17
1985
8
1986
15
1987
33
1988
14
1989
14
1990
12
1991
12
1992
25
1993
14
1994
20
1995
46
1996
12
1997
29
1998
61
1999
10
2000
14
2001
18
2002
26
2003
16
2004
21
2005
21
2006
36
2007
30
2008
27
2009
25
2010
45
2011
54
2012
29
All-Time Record Progression
3 new records
3 all-time records were set at Jasso between 19 May 1995 and 10 January 2010. Each dot is a new record.
When Jasso set new all-time records
Date
Kind
Detail
1995-05-19
Record high minimum temperature
Record high minimum temperature 16.7 C (62.1 F)
2004-01-10
Record low maximum temperature
Record low maximum temperature 6.7 C (44.1 F)
2010-01-10
Record low maximum temperature
Record low maximum temperature 5.6 C (42.1 F)
Wettest Day of Each Month
Jun: 89.9 mm (3.5 in)
The wettest day on record for each calendar month at Jasso. The most was 89.9 mm (3.5 in) on 26 June 1973.
Record daily precipitation for each month at Jasso
Month
Record daily precipitation (mm)
Date
Jan
26.7 mm (1.1 in)
28 January 1992
Feb
36.8 mm (1.4 in)
3 February 2010
Mar
20.8 mm (0.8 in)
9 March 1966
Apr
42.9 mm (1.7 in)
22 April 1952
May
58.4 mm (2.3 in)
26 May 1988
Jun
89.9 mm (3.5 in)
26 June 1973
Jul
66.8 mm (2.6 in)
6 July 1991
Aug
78.0 mm (3.1 in)
5 August 1963
Sep
75.9 mm (3.0 in)
29 September 1977
Oct
53.8 mm (2.1 in)
19 October 1965
Nov
40.4 mm (1.6 in)
5 November 2002
Dec
32.8 mm (1.3 in)
1 December 1972
Period of Record Coverage
1951 to 2012
Complete yearUnder 90 percent of days
62 years of record at Jasso, 1951 to 2012. 6 years have data for under 90 percent of days and are left out of rankings: 1969, 2001, 2002, 2005, 2009, 2012.
Cooler than the station meanWarmer than the station mean
One stripe for each of 41 complete years at Jasso, 1953 to 2007. Blue stripes are years cooler than the station's own mean of 16.1 C (61.0 F); red stripes are warmer. The coolest year was 2006, at 13.4 C (56.1 F), and the warmest was 1995, at 17.0 C (62.7 F). The strongest colour marks a difference of 2.7 C (4.9 F).
Annual mean temperature at Jasso as warming stripes, 1953 to 2007
Year
Annual mean temperature
Difference from the station mean
1953
16.2 C
+0.06 C
1954
15.7 C
-0.43 C
1955
15.5 C
-0.62 C
1956
15.2 C
-0.88 C
1957
15.8 C
-0.26 C
1958
16.2 C
+0.10 C
1959
16.0 C
-0.06 C
1960
16.2 C
+0.12 C
1961
16.2 C
+0.10 C
1962
16.9 C
+0.76 C
1963
16.6 C
+0.48 C
1964
16.9 C
+0.76 C
1965
16.4 C
+0.25 C
1966
16.0 C
-0.12 C
1967
16.2 C
+0.12 C
1968
16.2 C
+0.07 C
1970
16.3 C
+0.23 C
1971
16.4 C
+0.28 C
1972
16.7 C
+0.58 C
1973
16.8 C
+0.69 C
1974
16.1 C
-0.01 C
1975
16.1 C
+0.04 C
1976
16.0 C
-0.06 C
1977
16.3 C
+0.23 C
1978
16.5 C
+0.37 C
1979
16.1 C
-0.02 C
1980
16.4 C
+0.29 C
1981
16.3 C
+0.16 C
1982
16.6 C
+0.47 C
1983
16.4 C
+0.30 C
1984
15.9 C
-0.19 C
1986
15.8 C
-0.34 C
1989
15.6 C
-0.48 C
1990
15.9 C
-0.19 C
1991
16.3 C
+0.17 C
1994
16.8 C
+0.69 C
1995
17.0 C
+0.94 C
1996
16.5 C
+0.35 C
1997
16.5 C
+0.39 C
2006
13.4 C
-2.70 C
2007
13.4 C
-2.66 C
The fitted trend in annual mean temperature here over 1953 to 2007 is -0.14 C (-0.29 to 0.02) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.25 F (-0.53 to 0.03) per decade. The slope is a straight line fitted to 41 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Jasso
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.14 C (-0.29 to 0.02) per decade
-0.25 F (-0.53 to 0.03) per decade
1953 to 2007
41
Not clearly different from zero
Mean daily maximum
-0.22 C (-0.39 to -0.04) per decade
-0.4 F (-0.7 to -0.1) per decade
1953 to 2007
41
Fall
Mean daily minimum
-0.1 C (-0.3 to 0.2) per decade
-0.1 F (-0.5 to 0.3) per decade
1953 to 2007
41
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
1951 to 2012
Yearly extremes at Jasso: 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)
1973
33.3 C (91.9 F)
62
Coldest night (TNn)
-10.0 C (14.0 F)
1956
-5.3 C (22.5 F)
62
Wettest day (Rx1day)
89.9 mm (3.5 in)
1973
43.9 mm (1.7 in)
62
Wettest five days (Rx5day)
147.7 mm (5.8 in)
1981
80.1 mm (3.2 in)
62
Longest dry spell (CDD)
118 days
1955
62 days
62
Hottest day (TXx)
The hottest day of the year at Jasso, 1951 to 2012. The record is 36.7 C (98.1 F) in 1973, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at Jasso by year
Year
Hottest day (TXx)
1951
33.9 C (93.0 F)
1952
33.9 C (93.0 F)
1953
35.0 C (95.0 F)
1954
34.4 C (93.9 F)
1955
33.9 C (93.0 F)
1956
32.8 C (91.0 F)
1957
33.3 C (91.9 F)
1958
33.3 C (91.9 F)
1959
31.7 C (89.1 F)
1960
32.8 C (91.0 F)
1961
34.4 C (93.9 F)
1962
34.4 C (93.9 F)
1963
33.9 C (93.0 F)
1964
35.0 C (95.0 F)
1965
32.8 C (91.0 F)
1966
34.4 C (93.9 F)
1967
35.0 C (95.0 F)
1968
33.3 C (91.9 F)
1969
35.0 C (95.0 F)
1970
35.0 C (95.0 F)
1971
35.6 C (96.1 F)
1972
33.3 C (91.9 F)
1973
36.7 C (98.1 F)
1974
35.0 C (95.0 F)
1975
34.4 C (93.9 F)
1976
32.8 C (91.0 F)
1977
35.0 C (95.0 F)
1978
35.0 C (95.0 F)
1979
34.4 C (93.9 F)
1980
35.0 C (95.0 F)
1981
34.4 C (93.9 F)
1982
33.9 C (93.0 F)
1983
36.7 C (98.1 F)
1984
35.0 C (95.0 F)
1985
32.8 C (91.0 F)
1986
35.0 C (95.0 F)
1987
32.8 C (91.0 F)
1988
34.4 C (93.9 F)
1989
33.3 C (91.9 F)
1990
32.8 C (91.0 F)
1991
32.8 C (91.0 F)
1992
28.9 C (84.0 F)
1993
31.7 C (89.1 F)
1994
31.7 C (89.1 F)
1995
32.8 C (91.0 F)
1996
32.8 C (91.0 F)
1997
30.6 C (87.1 F)
1998
35.0 C (95.0 F)
1999
30.6 C (87.1 F)
2000
31.7 C (89.1 F)
2001
30.0 C (86.0 F)
2002
31.7 C (89.1 F)
2003
31.7 C (89.1 F)
2004
28.9 C (84.0 F)
2005
30.6 C (87.1 F)
2006
30.0 C (86.0 F)
2007
30.0 C (86.0 F)
2008
30.0 C (86.0 F)
2009
30.0 C (86.0 F)
2010
31.7 C (89.1 F)
2011
31.7 C (89.1 F)
2012
30.0 C (86.0 F)
Coldest night (TNn)
The coldest night of the year at Jasso, 1951 to 2012. The record is -10.0 C (14.0 F) in 1956, marked on the chart; the median year is -5.3 C (22.5 F).
Coldest night (TNn) at Jasso by year
Year
Coldest night (TNn)
1951
-6.7 C (19.9 F)
1952
-5.6 C (21.9 F)
1953
-7.2 C (19.0 F)
1954
-7.2 C (19.0 F)
1955
-6.7 C (19.9 F)
1956
-10.0 C (14.0 F)
1957
-4.4 C (24.1 F)
1958
-2.2 C (28.0 F)
1959
-4.4 C (24.1 F)
1960
-7.2 C (19.0 F)
1961
-6.7 C (19.9 F)
1962
-4.4 C (24.1 F)
1963
-6.1 C (21.0 F)
1964
-4.4 C (24.1 F)
1965
-6.1 C (21.0 F)
1966
-6.1 C (21.0 F)
1967
-6.1 C (21.0 F)
1968
-3.3 C (26.1 F)
1969
-1.7 C (28.9 F)
1970
-5.0 C (23.0 F)
1971
-2.2 C (28.0 F)
1972
-4.4 C (24.1 F)
1973
-4.4 C (24.1 F)
1974
-5.0 C (23.0 F)
1975
-6.1 C (21.0 F)
1976
-7.2 C (19.0 F)
1977
-2.2 C (28.0 F)
1978
-3.3 C (26.1 F)
1979
-5.0 C (23.0 F)
1980
-5.0 C (23.0 F)
1981
-4.4 C (24.1 F)
1982
-4.4 C (24.1 F)
1983
-5.6 C (21.9 F)
1984
-6.1 C (21.0 F)
1985
-6.1 C (21.0 F)
1986
-10.0 C (14.0 F)
1987
-5.0 C (23.0 F)
1988
-8.3 C (17.1 F)
1989
-6.1 C (21.0 F)
1990
-5.6 C (21.9 F)
1991
-1.7 C (28.9 F)
1992
-2.8 C (27.0 F)
1993
0.0 C (32.0 F)
1994
0.0 C (32.0 F)
1995
-1.1 C (30.0 F)
1996
-3.3 C (26.1 F)
1997
-6.1 C (21.0 F)
1998
-2.2 C (28.0 F)
1999
-4.4 C (24.1 F)
2000
-2.2 C (28.0 F)
2001
-2.2 C (28.0 F)
2002
-8.3 C (17.1 F)
2003
-6.1 C (21.0 F)
2004
-7.2 C (19.0 F)
2005
-6.1 C (21.0 F)
2006
-9.4 C (15.1 F)
2007
-6.1 C (21.0 F)
2008
-8.3 C (17.1 F)
2009
-5.0 C (23.0 F)
2010
-10.0 C (14.0 F)
2011
-10.0 C (14.0 F)
2012
-3.3 C (26.1 F)
Wettest day (Rx1day)
The wettest day of the year at Jasso, 1951 to 2012. The record is 89.9 mm (3.5 in) in 1973, marked on the chart; the median year is 43.9 mm (1.7 in).
Wettest day (Rx1day) at Jasso by year
Year
Wettest day (Rx1day)
1951
29.0 mm (1.1 in)
1952
42.9 mm (1.7 in)
1953
53.8 mm (2.1 in)
1954
35.8 mm (1.4 in)
1955
35.8 mm (1.4 in)
1956
49.8 mm (2.0 in)
1957
21.3 mm (0.8 in)
1958
49.8 mm (2.0 in)
1959
30.0 mm (1.2 in)
1960
57.4 mm (2.3 in)
1961
37.8 mm (1.5 in)
1962
40.4 mm (1.6 in)
1963
78.0 mm (3.1 in)
1964
34.3 mm (1.4 in)
1965
53.8 mm (2.1 in)
1966
36.8 mm (1.4 in)
1967
49.3 mm (1.9 in)
1968
24.9 mm (1.0 in)
1969
30.5 mm (1.2 in)
1970
25.9 mm (1.0 in)
1971
37.8 mm (1.5 in)
1972
45.5 mm (1.8 in)
1973
89.9 mm (3.5 in)
1974
54.9 mm (2.2 in)
1975
45.5 mm (1.8 in)
1976
47.0 mm (1.9 in)
1977
75.9 mm (3.0 in)
1978
33.8 mm (1.3 in)
1979
41.4 mm (1.6 in)
1980
43.9 mm (1.7 in)
1981
79.8 mm (3.1 in)
1982
27.9 mm (1.1 in)
1983
51.8 mm (2.0 in)
1984
43.4 mm (1.7 in)
1985
54.9 mm (2.2 in)
1986
36.3 mm (1.4 in)
1987
47.5 mm (1.9 in)
1988
58.4 mm (2.3 in)
1989
50.8 mm (2.0 in)
1990
39.4 mm (1.6 in)
1991
66.8 mm (2.6 in)
1992
67.8 mm (2.7 in)
1993
59.9 mm (2.4 in)
1994
39.9 mm (1.6 in)
1995
34.8 mm (1.4 in)
1996
25.9 mm (1.0 in)
1997
47.8 mm (1.9 in)
1998
67.3 mm (2.6 in)
1999
30.5 mm (1.2 in)
2000
44.5 mm (1.8 in)
2001
43.9 mm (1.7 in)
2002
50.8 mm (2.0 in)
2003
31.5 mm (1.2 in)
2004
40.4 mm (1.6 in)
2005
46.0 mm (1.8 in)
2006
39.4 mm (1.6 in)
2007
45.0 mm (1.8 in)
2008
48.8 mm (1.9 in)
2009
63.8 mm (2.5 in)
2010
36.8 mm (1.4 in)
2011
37.3 mm (1.5 in)
2012
39.9 mm (1.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Jasso, 1951 to 2012. The record is 147.7 mm (5.8 in) in 1981, marked on the chart; the median year is 80.1 mm (3.2 in).
Wettest five days (Rx5day) at Jasso by year
Year
Wettest five days (Rx5day)
1951
58.5 mm (2.3 in)
1952
97.8 mm (3.9 in)
1953
89.7 mm (3.5 in)
1954
72.2 mm (2.8 in)
1955
64.6 mm (2.5 in)
1956
116.6 mm (4.6 in)
1957
52.9 mm (2.1 in)
1958
105.7 mm (4.2 in)
1959
65.1 mm (2.6 in)
1960
129.8 mm (5.1 in)
1961
86.7 mm (3.4 in)
1962
68.4 mm (2.7 in)
1963
82.1 mm (3.2 in)
1964
68.3 mm (2.7 in)
1965
91.0 mm (3.6 in)
1966
51.1 mm (2.0 in)
1967
95.3 mm (3.8 in)
1968
62.7 mm (2.5 in)
1969
54.8 mm (2.2 in)
1970
63.8 mm (2.5 in)
1971
86.6 mm (3.4 in)
1972
63.3 mm (2.5 in)
1973
143.3 mm (5.6 in)
1974
97.7 mm (3.8 in)
1975
92.2 mm (3.6 in)
1976
95.1 mm (3.7 in)
1977
90.2 mm (3.6 in)
1978
71.3 mm (2.8 in)
1979
80.0 mm (3.1 in)
1980
80.2 mm (3.2 in)
1981
147.7 mm (5.8 in)
1982
45.9 mm (1.8 in)
1983
72.2 mm (2.8 in)
1984
84.1 mm (3.3 in)
1985
111.4 mm (4.4 in)
1986
45.9 mm (1.8 in)
1987
63.8 mm (2.5 in)
1988
114.7 mm (4.5 in)
1989
86.8 mm (3.4 in)
1990
74.5 mm (2.9 in)
1991
106.9 mm (4.2 in)
1992
88.2 mm (3.5 in)
1993
94.0 mm (3.7 in)
1994
73.2 mm (2.9 in)
1995
66.6 mm (2.6 in)
1996
59.7 mm (2.4 in)
1997
104.6 mm (4.1 in)
1998
126.8 mm (5.0 in)
1999
62.6 mm (2.5 in)
2000
90.3 mm (3.6 in)
2001
56.1 mm (2.2 in)
2002
78.3 mm (3.1 in)
2003
82.6 mm (3.3 in)
2004
68.3 mm (2.7 in)
2005
88.2 mm (3.5 in)
2006
55.9 mm (2.2 in)
2007
59.0 mm (2.3 in)
2008
114.9 mm (4.5 in)
2009
87.4 mm (3.4 in)
2010
72.2 mm (2.8 in)
2011
65.2 mm (2.6 in)
2012
58.5 mm (2.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Jasso, 1951 to 2012. The record is 118 days in 1955, marked on the chart; the median year is 62 days.
Longest dry spell (CDD) at Jasso by year
Year
Longest dry spell (CDD)
1951
73 days
1952
61 days
1953
48 days
1954
102 days
1955
118 days
1956
73 days
1957
86 days
1958
87 days
1959
65 days
1960
97 days
1961
47 days
1962
85 days
1963
58 days
1964
44 days
1965
51 days
1966
52 days
1967
67 days
1968
51 days
1969
72 days
1970
80 days
1971
76 days
1972
58 days
1973
94 days
1974
34 days
1975
65 days
1976
79 days
1977
49 days
1978
41 days
1979
45 days
1980
41 days
1981
62 days
1982
80 days
1983
69 days
1984
92 days
1985
84 days
1986
52 days
1987
63 days
1988
65 days
1989
81 days
1990
40 days
1991
62 days
1992
31 days
1993
44 days
1994
43 days
1995
50 days
1996
107 days
1997
48 days
1998
102 days
1999
67 days
2000
65 days
2001
47 days
2002
45 days
2003
75 days
2004
55 days
2005
33 days
2006
49 days
2007
42 days
2008
46 days
2009
39 days
2010
36 days
2011
93 days
2012
15 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
35 years with a frost
Across 35 years with a frost, the median last spring frost at Jasso falls on 9 March and the median first autumn frost on 10 November, which leaves a median of 246 days between them.
Fitted over all years, the growing season changes by -3.5 days per decade at this station.
Frost dates and growing season at Jasso
Measure
Median, all years
Earliest period
Recent period (1959 to 2007)
Recent against earliest
Fitted trend
Last spring frost
9 March
n/a
9 March
n/a
+2.4 days per decade
First autumn frost
10 November
n/a
11 November
n/a
-1.1 days per decade
Growing days
246 days
n/a
245 days
n/a
-3.5 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
57 years, 1951 to 2011
A day with at least 43.2 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 92.4 mm (3.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Jasso: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
43.2 mm (1.7 in)
5 years
56.2 mm (2.2 in)
10 years
64.8 mm (2.6 in)
25 years
75.9 mm (3.0 in)
50 years
84.1 mm (3.3 in)
100 years
92.4 mm (3.6 in)
Longer than the 57 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, 57 years of values from 1951 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: 89.9 mm (3.5 in) in 1973; 79.8 mm (3.1 in) in 1981; 78.0 mm (3.1 in) in 1963.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Jasso standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Jasso 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.