Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Sain Alto. 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 Sain Alto, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
33.9 C (93.0 F)
-13.3 C (8.1 F)
n/a
n/a
Feb
33.3 C (91.9 F)
-8.3 C (17.1 F)
n/a
n/a
Mar
35.6 C (96.1 F)
-6.1 C (21.0 F)
n/a
n/a
Apr
38.9 C (102.0 F)
-3.3 C (26.1 F)
n/a
n/a
May
38.9 C (102.0 F)
1.7 C (35.1 F)
n/a
n/a
Jun
38.9 C (102.0 F)
1.7 C (35.1 F)
n/a
n/a
Jul
38.3 C (100.9 F)
1.7 C (35.1 F)
n/a
n/a
Aug
36.7 C (98.1 F)
1.7 C (35.1 F)
n/a
n/a
Sep
40.0 C (104.0 F)
0.6 C (33.1 F)
n/a
n/a
Oct
40.0 C (104.0 F)
-4.4 C (24.1 F)
n/a
n/a
Nov
36.1 C (97.0 F)
-10.6 C (12.9 F)
n/a
n/a
Dec
33.9 C (93.0 F)
-13.3 C (8.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Sain Alto still stand. 1960 holds the most, with 139.
Standing records at Sain Alto by the year they were set
Year set
Standing records
1955
132
1956
48
1957
33
1958
33
1959
32
1960
139
1961
32
1963
41
1964
34
1965
46
1966
45
1967
83
1968
53
1969
74
1970
44
1971
15
1972
18
1973
25
1974
16
1975
18
1976
35
1977
15
1978
7
1979
8
1980
4
1981
8
1982
6
1983
14
1984
5
1985
8
1986
3
1987
1
1988
4
1989
14
1990
15
1991
22
1992
19
1993
10
1995
3
1996
11
1997
45
1998
13
1999
14
2000
12
2001
14
2002
17
2003
18
2004
14
2005
16
2006
48
2007
16
2008
12
2009
10
2010
20
2011
16
2012
6
All-Time Record Progression
1 new records
1 all-time records were set at Sain Alto between 13 December 1997 and 13 December 1997. Each dot is a new record.
When Sain Alto set new all-time records
Date
Kind
Detail
1997-12-13
Record low minimum temperature
Record low minimum temperature -13.3 C (8.1 F)
Wettest Day of Each Month
Aug: 96.8 mm (3.8 in)
The wettest day on record for each calendar month at Sain Alto. The most was 96.8 mm (3.8 in) on 21 August 1960.
Record daily precipitation for each month at Sain Alto
Month
Record daily precipitation (mm)
Date
Jan
33.8 mm (1.3 in)
15 January 1992
Feb
27.9 mm (1.1 in)
25 February 1987
Mar
28.4 mm (1.1 in)
4 March 1968
Apr
31.0 mm (1.2 in)
13 April 1959
May
49.8 mm (2.0 in)
6 May 1959
Jun
79.2 mm (3.1 in)
30 June 1971
Jul
67.1 mm (2.6 in)
26 July 2006
Aug
96.8 mm (3.8 in)
21 August 1960
Sep
87.9 mm (3.5 in)
27 September 1978
Oct
90.9 mm (3.6 in)
3 October 1996
Nov
50.8 mm (2.0 in)
2 November 1993
Dec
24.9 mm (1.0 in)
2 December 1965
Period of Record Coverage
1955 to 2012
Complete yearUnder 90 percent of days
57 years of record at Sain Alto, 1955 to 2012. 5 years have data for under 90 percent of days and are left out of rankings: 1955, 1988, 1989, 1993, 2003.
Cooler than the station meanWarmer than the station mean
One stripe for each of 45 complete years at Sain Alto, 1956 to 2012. Blue stripes are years cooler than the station's own mean of 16.6 C (61.9 F); red stripes are warmer. The coolest year was 2006, at 13.8 C (56.9 F), and the warmest was 1969, at 18.3 C (65.0 F). The strongest colour marks a difference of 2.8 C (5.0 F).
Annual mean temperature at Sain Alto as warming stripes, 1956 to 2012
Year
Annual mean temperature
Difference from the station mean
1956
17.6 C
+0.95 C
1957
17.2 C
+0.59 C
1958
16.9 C
+0.25 C
1959
16.8 C
+0.21 C
1960
16.1 C
-0.51 C
1961
17.6 C
+0.97 C
1963
17.6 C
+0.99 C
1964
17.0 C
+0.35 C
1965
17.2 C
+0.52 C
1966
17.4 C
+0.77 C
1967
17.7 C
+1.05 C
1968
17.5 C
+0.91 C
1969
18.3 C
+1.68 C
1970
16.2 C
-0.42 C
1971
17.0 C
+0.39 C
1972
17.2 C
+0.54 C
1973
16.6 C
+0.00 C
1974
17.1 C
+0.49 C
1975
17.0 C
+0.36 C
1976
16.2 C
-0.46 C
1977
16.7 C
+0.10 C
1978
16.2 C
-0.39 C
1979
16.3 C
-0.38 C
1980
16.6 C
-0.04 C
1981
16.6 C
-0.03 C
1982
17.0 C
+0.35 C
1983
15.8 C
-0.85 C
1984
15.9 C
-0.70 C
1985
16.2 C
-0.47 C
1986
16.0 C
-0.60 C
1991
16.3 C
-0.30 C
1994
17.0 C
+0.37 C
1996
16.5 C
-0.11 C
1997
15.7 C
-0.95 C
1998
16.7 C
+0.02 C
1999
15.7 C
-0.90 C
2000
15.9 C
-0.72 C
2001
16.2 C
-0.42 C
2002
16.2 C
-0.39 C
2005
16.4 C
-0.26 C
2006
13.8 C
-2.80 C
2007
16.4 C
-0.26 C
2010
15.9 C
-0.77 C
2011
17.2 C
+0.55 C
2012
16.8 C
+0.18 C
The annual mean temperature here has fallen by 0.2 C (0.1 to 0.4) per decade over 1956 to 2012. In Fahrenheit: 0.4 F (0.2 to 0.6) per decade. The slope is a straight line fitted to 45 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Sain Alto
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.2 C (-0.4 to -0.1) per decade
-0.4 F (-0.6 to -0.2) per decade
1956 to 2012
45
Fall
Mean daily maximum
-0.5 C (-0.6 to -0.3) per decade
-0.9 F (-1.2 to -0.5) per decade
1956 to 2012
45
Fall
Mean daily minimum
-0.02 C (-0.15 to 0.11) per decade
-0.04 F (-0.26 to 0.19) per decade
1956 to 2012
45
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
1942 to 2012
Yearly extremes at Sain Alto: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.0 C (104.0 F)
1955
33.9 C (93.0 F)
57
Coldest night (TNn)
-13.3 C (8.1 F)
1997
-5.0 C (23.0 F)
57
Wettest day (Rx1day)
96.8 mm (3.8 in)
1960
40.9 mm (1.6 in)
70
Wettest five days (Rx5day)
170.2 mm (6.7 in)
1996
74.2 mm (2.9 in)
70
Longest dry spell (CDD)
171 days
2011
86 days
70
Hottest day (TXx)
The hottest day of the year at Sain Alto, 1942 to 2012. The record is 40.0 C (104.0 F) in 1955, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at Sain Alto by year
Year
Hottest day (TXx)
1942
n/a
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
40.0 C (104.0 F)
1956
37.8 C (100.0 F)
1957
35.6 C (96.1 F)
1958
38.9 C (102.0 F)
1959
35.0 C (95.0 F)
1960
35.0 C (95.0 F)
1961
38.9 C (102.0 F)
1963
37.8 C (100.0 F)
1964
36.7 C (98.1 F)
1965
36.1 C (97.0 F)
1966
35.6 C (96.1 F)
1967
38.9 C (102.0 F)
1968
36.7 C (98.1 F)
1969
38.3 C (100.9 F)
1970
36.7 C (98.1 F)
1971
32.8 C (91.0 F)
1972
33.9 C (93.0 F)
1973
35.0 C (95.0 F)
1974
33.9 C (93.0 F)
1975
34.4 C (93.9 F)
1976
32.8 C (91.0 F)
1977
33.3 C (91.9 F)
1978
32.8 C (91.0 F)
1979
32.8 C (91.0 F)
1980
34.4 C (93.9 F)
1981
33.9 C (93.0 F)
1982
35.0 C (95.0 F)
1983
33.9 C (93.0 F)
1984
32.8 C (91.0 F)
1985
32.8 C (91.0 F)
1986
31.7 C (89.1 F)
1987
31.7 C (89.1 F)
1988
32.8 C (91.0 F)
1989
36.7 C (98.1 F)
1990
35.6 C (96.1 F)
1991
35.6 C (96.1 F)
1992
33.9 C (93.0 F)
1993
33.9 C (93.0 F)
1994
32.8 C (91.0 F)
1995
33.9 C (93.0 F)
1996
35.0 C (95.0 F)
1997
31.7 C (89.1 F)
1998
34.4 C (93.9 F)
1999
33.9 C (93.0 F)
2000
32.8 C (91.0 F)
2001
31.7 C (89.1 F)
2002
33.9 C (93.0 F)
2003
33.3 C (91.9 F)
2004
32.8 C (91.0 F)
2005
35.0 C (95.0 F)
2006
30.0 C (86.0 F)
2007
33.9 C (93.0 F)
2008
32.8 C (91.0 F)
2009
33.9 C (93.0 F)
2010
33.9 C (93.0 F)
2011
36.1 C (97.0 F)
2012
35.0 C (95.0 F)
Coldest night (TNn)
The coldest night of the year at Sain Alto, 1942 to 2012. The record is -13.3 C (8.1 F) in 1997, marked on the chart; the median year is -5.0 C (23.0 F).
Coldest night (TNn) at Sain Alto by year
Year
Coldest night (TNn)
1942
n/a
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
1.7 C (35.1 F)
1956
1.7 C (35.1 F)
1957
0.6 C (33.1 F)
1958
0.6 C (33.1 F)
1959
0.0 C (32.0 F)
1960
0.6 C (33.1 F)
1961
0.0 C (32.0 F)
1963
0.0 C (32.0 F)
1964
-6.1 C (21.0 F)
1965
-8.3 C (17.1 F)
1966
-8.3 C (17.1 F)
1967
-10.0 C (14.0 F)
1968
-6.1 C (21.0 F)
1969
-6.1 C (21.0 F)
1970
-8.3 C (17.1 F)
1971
-4.4 C (24.1 F)
1972
-6.1 C (21.0 F)
1973
-8.3 C (17.1 F)
1974
-5.0 C (23.0 F)
1975
-6.7 C (19.9 F)
1976
-5.6 C (21.9 F)
1977
-3.9 C (25.0 F)
1978
-5.0 C (23.0 F)
1979
-5.0 C (23.0 F)
1980
-4.4 C (24.1 F)
1981
-5.0 C (23.0 F)
1982
-4.4 C (24.1 F)
1983
-6.1 C (21.0 F)
1984
-5.0 C (23.0 F)
1985
-6.1 C (21.0 F)
1986
-3.3 C (26.1 F)
1987
-2.2 C (28.0 F)
1988
-6.1 C (21.0 F)
1989
-5.0 C (23.0 F)
1990
-5.0 C (23.0 F)
1991
-2.8 C (27.0 F)
1992
-2.2 C (28.0 F)
1993
-1.1 C (30.0 F)
1994
-2.2 C (28.0 F)
1995
-1.1 C (30.0 F)
1996
-3.3 C (26.1 F)
1997
-13.3 C (8.1 F)
1998
-6.7 C (19.9 F)
1999
-7.2 C (19.0 F)
2000
-5.6 C (21.9 F)
2001
-7.8 C (18.0 F)
2002
-6.1 C (21.0 F)
2003
-8.3 C (17.1 F)
2004
-10.0 C (14.0 F)
2005
-5.0 C (23.0 F)
2006
-13.3 C (8.1 F)
2007
-4.4 C (24.1 F)
2008
-8.3 C (17.1 F)
2009
-5.0 C (23.0 F)
2010
-6.7 C (19.9 F)
2011
-10.6 C (12.9 F)
2012
-5.0 C (23.0 F)
Wettest day (Rx1day)
The wettest day of the year at Sain Alto, 1942 to 2012. The record is 96.8 mm (3.8 in) in 1960, marked on the chart; the median year is 40.9 mm (1.6 in).
Wettest day (Rx1day) at Sain Alto by year
Year
Wettest day (Rx1day)
1942
31.5 mm (1.2 in)
1943
45.0 mm (1.8 in)
1944
54.9 mm (2.2 in)
1945
35.8 mm (1.4 in)
1946
19.8 mm (0.8 in)
1947
69.9 mm (2.8 in)
1948
19.8 mm (0.8 in)
1949
19.8 mm (0.8 in)
1950
19.8 mm (0.8 in)
1951
74.9 mm (2.9 in)
1952
17.8 mm (0.7 in)
1953
49.8 mm (2.0 in)
1954
47.0 mm (1.9 in)
1955
47.0 mm (1.9 in)
1956
39.9 mm (1.6 in)
1957
55.9 mm (2.2 in)
1958
42.9 mm (1.7 in)
1959
49.8 mm (2.0 in)
1960
96.8 mm (3.8 in)
1961
36.8 mm (1.4 in)
1963
31.0 mm (1.2 in)
1964
34.8 mm (1.4 in)
1965
40.9 mm (1.6 in)
1966
31.0 mm (1.2 in)
1967
56.9 mm (2.2 in)
1968
42.9 mm (1.7 in)
1969
45.0 mm (1.8 in)
1970
38.9 mm (1.5 in)
1971
79.2 mm (3.1 in)
1972
35.8 mm (1.4 in)
1973
56.9 mm (2.2 in)
1974
31.0 mm (1.2 in)
1975
46.0 mm (1.8 in)
1976
51.8 mm (2.0 in)
1977
35.8 mm (1.4 in)
1978
87.9 mm (3.5 in)
1979
17.8 mm (0.7 in)
1980
31.0 mm (1.2 in)
1981
57.4 mm (2.3 in)
1982
51.8 mm (2.0 in)
1983
37.3 mm (1.5 in)
1984
31.8 mm (1.3 in)
1985
55.9 mm (2.2 in)
1986
38.9 mm (1.5 in)
1987
63.8 mm (2.5 in)
1988
34.8 mm (1.4 in)
1989
39.9 mm (1.6 in)
1990
30.0 mm (1.2 in)
1991
39.9 mm (1.6 in)
1992
46.0 mm (1.8 in)
1993
50.8 mm (2.0 in)
1994
35.3 mm (1.4 in)
1995
34.8 mm (1.4 in)
1996
90.9 mm (3.6 in)
1997
33.8 mm (1.3 in)
1998
62.5 mm (2.5 in)
1999
47.0 mm (1.9 in)
2000
45.0 mm (1.8 in)
2001
24.9 mm (1.0 in)
2002
52.8 mm (2.1 in)
2003
41.9 mm (1.6 in)
2004
45.0 mm (1.8 in)
2005
38.9 mm (1.5 in)
2006
67.1 mm (2.6 in)
2007
79.0 mm (3.1 in)
2008
34.8 mm (1.4 in)
2009
32.3 mm (1.3 in)
2010
40.9 mm (1.6 in)
2011
22.4 mm (0.9 in)
2012
29.5 mm (1.2 in)
Wettest five days (Rx5day)
The wettest five days of the year at Sain Alto, 1942 to 2012. The record is 170.2 mm (6.7 in) in 1996, marked on the chart; the median year is 74.2 mm (2.9 in).
Wettest five days (Rx5day) at Sain Alto by year
Year
Wettest five days (Rx5day)
1942
78.2 mm (3.1 in)
1943
134.4 mm (5.3 in)
1944
76.5 mm (3.0 in)
1945
81.3 mm (3.2 in)
1946
37.6 mm (1.5 in)
1947
76.8 mm (3.0 in)
1948
56.4 mm (2.2 in)
1949
60.2 mm (2.4 in)
1950
44.4 mm (1.7 in)
1951
167.7 mm (6.6 in)
1952
20.4 mm (0.8 in)
1953
71.3 mm (2.8 in)
1954
61.4 mm (2.4 in)
1955
92.6 mm (3.6 in)
1956
41.7 mm (1.6 in)
1957
105.2 mm (4.1 in)
1958
126.5 mm (5.0 in)
1959
69.9 mm (2.8 in)
1960
124.2 mm (4.9 in)
1961
71.8 mm (2.8 in)
1963
51.6 mm (2.0 in)
1964
62.9 mm (2.5 in)
1965
55.1 mm (2.2 in)
1966
63.3 mm (2.5 in)
1967
144.5 mm (5.7 in)
1968
50.6 mm (2.0 in)
1969
54.7 mm (2.2 in)
1970
88.2 mm (3.5 in)
1971
81.5 mm (3.2 in)
1972
86.0 mm (3.4 in)
1973
121.4 mm (4.8 in)
1974
54.2 mm (2.1 in)
1975
113.1 mm (4.5 in)
1976
162.1 mm (6.4 in)
1977
63.7 mm (2.5 in)
1978
103.6 mm (4.1 in)
1979
45.7 mm (1.8 in)
1980
109.8 mm (4.3 in)
1981
94.1 mm (3.7 in)
1982
66.3 mm (2.6 in)
1983
109.1 mm (4.3 in)
1984
60.2 mm (2.4 in)
1985
84.6 mm (3.3 in)
1986
76.8 mm (3.0 in)
1987
112.5 mm (4.4 in)
1988
86.3 mm (3.4 in)
1989
68.6 mm (2.7 in)
1990
61.7 mm (2.4 in)
1991
111.8 mm (4.4 in)
1992
64.3 mm (2.5 in)
1993
78.7 mm (3.1 in)
1994
65.6 mm (2.6 in)
1995
67.7 mm (2.7 in)
1996
170.2 mm (6.7 in)
1997
41.2 mm (1.6 in)
1998
97.8 mm (3.9 in)
1999
78.6 mm (3.1 in)
2000
64.8 mm (2.6 in)
2001
47.8 mm (1.9 in)
2002
89.9 mm (3.5 in)
2003
64.1 mm (2.5 in)
2004
67.1 mm (2.6 in)
2005
62.2 mm (2.4 in)
2006
138.8 mm (5.5 in)
2007
167.6 mm (6.6 in)
2008
104.5 mm (4.1 in)
2009
69.7 mm (2.7 in)
2010
83.9 mm (3.3 in)
2011
34.5 mm (1.4 in)
2012
49.8 mm (2.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Sain Alto, 1942 to 2012. The record is 171 days in 2011, marked on the chart; the median year is 86 days.
Longest dry spell (CDD) at Sain Alto by year
Year
Longest dry spell (CDD)
1942
154 days
1943
106 days
1944
48 days
1945
89 days
1946
50 days
1947
102 days
1948
76 days
1949
93 days
1950
104 days
1951
82 days
1952
105 days
1953
58 days
1954
162 days
1955
154 days
1956
135 days
1957
102 days
1958
88 days
1959
44 days
1960
152 days
1961
87 days
1963
58 days
1964
101 days
1965
101 days
1966
76 days
1967
46 days
1968
35 days
1969
84 days
1970
98 days
1971
78 days
1972
77 days
1973
82 days
1974
73 days
1975
134 days
1976
61 days
1977
126 days
1978
70 days
1979
109 days
1980
88 days
1981
34 days
1982
107 days
1983
74 days
1984
72 days
1985
42 days
1986
58 days
1987
61 days
1988
91 days
1989
41 days
1990
81 days
1991
126 days
1992
49 days
1993
71 days
1994
73 days
1995
148 days
1996
70 days
1997
45 days
1998
124 days
1999
162 days
2000
81 days
2001
46 days
2002
88 days
2003
104 days
2004
62 days
2005
106 days
2006
106 days
2007
96 days
2008
63 days
2009
68 days
2010
95 days
2011
171 days
2012
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
39 years with a frost
Across 39 years with a frost, the median last spring frost at Sain Alto falls on 21 March and the median first autumn frost on 13 November, which leaves a median of 235 days between them.
Fitted over all years, the growing season changes by +1.6 days per decade at this station.
Frost dates and growing season at Sain Alto
Measure
Median, all years
Earliest period
Recent period (1972 to 2012)
Recent against earliest
Fitted trend
Last spring frost
21 March
n/a
22 March
n/a
-1.4 days per decade
First autumn frost
13 November
n/a
15 November
n/a
+0.3 days per decade
Growing days
235 days
n/a
244 days
n/a
+1.6 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
65 years, 1942 to 2012
A day with at least 41.3 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 103.4 mm (4.1 in) of rain is expected about once in 100 years.
Rainfall return levels at Sain Alto: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
41.3 mm (1.6 in)
5 years
57.3 mm (2.3 in)
10 years
68.2 mm (2.7 in)
25 years
82.1 mm (3.2 in)
50 years
92.7 mm (3.6 in)
100 years
103.4 mm (4.1 in)
Longer than the 65 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, 65 years of values from 1942 to 2012.
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: 96.8 mm (3.8 in) in 1960; 90.9 mm (3.6 in) in 1996; 87.9 mm (3.5 in) in 1978.
Download the Data
Data for Sain Alto standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Sain Alto 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.