Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Sonoita. 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 Sonoita, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
36.7 C (98.1 F)
-8.9 C (16.0 F)
n/a
n/a
Feb
33.3 C (91.9 F)
-6.7 C (19.9 F)
n/a
n/a
Mar
39.4 C (102.9 F)
-2.2 C (28.0 F)
n/a
n/a
Apr
41.1 C (106.0 F)
1.1 C (34.0 F)
n/a
n/a
May
45.0 C (113.0 F)
2.8 C (37.0 F)
n/a
n/a
Jun
48.3 C (118.9 F)
8.9 C (48.0 F)
n/a
n/a
Jul
48.9 C (120.0 F)
13.9 C (57.0 F)
n/a
n/a
Aug
47.2 C (117.0 F)
11.1 C (52.0 F)
n/a
n/a
Sep
45.0 C (113.0 F)
9.4 C (48.9 F)
n/a
n/a
Oct
41.7 C (107.1 F)
-0.6 C (30.9 F)
n/a
n/a
Nov
35.6 C (96.1 F)
-5.0 C (23.0 F)
n/a
n/a
Dec
30.0 C (86.0 F)
-10.0 C (14.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Sonoita still stand. 1949 holds the most, with 56.
Standing records at Sonoita by the year they were set
Year set
Standing records
1948
2
1949
56
1950
22
1951
10
1952
28
1953
28
1954
4
1955
42
1956
31
1957
26
1958
23
1959
21
1960
38
1961
27
1962
25
1963
25
1964
22
1965
34
1966
15
1967
45
1968
20
1969
22
1970
7
1971
56
1972
19
1973
15
1974
18
1975
14
1976
17
1977
22
1978
16
1979
21
1980
31
1981
19
1982
18
1983
14
1984
17
1985
32
1986
29
1987
24
1988
20
1989
33
1990
33
1991
18
1992
21
1993
18
1994
13
1995
33
1996
22
1997
23
1998
14
1999
19
2000
19
2001
18
2002
18
2003
15
2004
21
2005
12
2006
23
2007
20
2008
18
2009
21
2010
13
2011
19
2012
15
2013
10
All-Time Record Progression
6 new records
6 all-time records were set at Sonoita between 24 August 1985 and 21 January 2010. Each dot is a new record.
When Sonoita set new all-time records
Date
Kind
Detail
1985-08-24
Record high maximum temperature
Record high maximum temperature 47.2 C (117.0 F)
1988-12-28
Record low minimum temperature
Record low minimum temperature -10.0 C (14.0 F)
1990-06-26
Record high maximum temperature
Record high maximum temperature 48.3 C (118.9 F)
2001-07-02
Record high maximum temperature
Record high maximum temperature 48.9 C (120.0 F)
2003-07-15
Record high minimum temperature
Record high minimum temperature 31.7 C (89.1 F)
2010-01-21
Record daily precipitation
Record daily precipitation 130.3 mm (5.1 in)
Wettest Day of Each Month
Jan: 130.3 mm (5.1 in)
The wettest day on record for each calendar month at Sonoita. The most was 130.3 mm (5.1 in) on 21 January 2010.
Record daily precipitation for each month at Sonoita
Month
Record daily precipitation (mm)
Date
Jan
130.3 mm (5.1 in)
21 January 2010
Feb
30.7 mm (1.2 in)
17 February 1998
Mar
47.0 mm (1.9 in)
17 March 1963
Apr
43.9 mm (1.7 in)
2 April 2004
May
8.6 mm (0.34 in)
19 May 1979
Jun
12.4 mm (0.5 in)
25 June 1984
Jul
71.6 mm (2.8 in)
14 July 1996
Aug
79.0 mm (3.1 in)
14 August 1961
Sep
57.9 mm (2.3 in)
13 September 1962
Oct
58.4 mm (2.3 in)
14 October 1988
Nov
35.3 mm (1.4 in)
30 November 2007
Dec
62.7 mm (2.5 in)
1 December 1983
Period of Record Coverage
1948 to 2013
Complete yearUnder 90 percent of days
66 years of record at Sonoita, 1948 to 2013. 8 years have data for under 90 percent of days and are left out of rankings: 1948, 1949, 1950, 1951, 1960, 1962, 2005, 2013.
Cooler than the station meanWarmer than the station mean
One stripe for each of 56 complete years at Sonoita, 1953 to 2012. Blue stripes are years cooler than the station's own mean of 21.2 C (70.2 F); red stripes are warmer. The coolest year was 1971, at 18.5 C (65.4 F), and the warmest was 1961, at 22.5 C (72.5 F). The strongest colour marks a difference of 2.7 C (4.9 F).
Annual mean temperature at Sonoita as warming stripes, 1953 to 2012
Year
Annual mean temperature
Difference from the station mean
1953
20.7 C
-0.51 C
1955
19.9 C
-1.30 C
1956
20.6 C
-0.58 C
1957
20.9 C
-0.30 C
1958
21.0 C
-0.18 C
1959
20.8 C
-0.41 C
1961
22.5 C
+1.30 C
1963
21.0 C
-0.17 C
1964
19.8 C
-1.37 C
1965
20.4 C
-0.79 C
1966
20.7 C
-0.51 C
1967
20.8 C
-0.38 C
1968
21.1 C
-0.13 C
1969
20.6 C
-0.61 C
1970
20.6 C
-0.62 C
1971
18.5 C
-2.68 C
1972
21.0 C
-0.23 C
1973
20.8 C
-0.40 C
1974
21.2 C
+0.02 C
1975
20.6 C
-0.63 C
1976
21.3 C
+0.08 C
1977
21.4 C
+0.19 C
1978
21.3 C
+0.06 C
1979
20.8 C
-0.46 C
1980
21.8 C
+0.60 C
1981
22.4 C
+1.17 C
1982
20.5 C
-0.68 C
1983
20.9 C
-0.33 C
1984
21.0 C
-0.21 C
1985
21.3 C
+0.08 C
1986
21.9 C
+0.66 C
1987
21.3 C
+0.06 C
1988
21.6 C
+0.36 C
1989
22.1 C
+0.86 C
1990
21.4 C
+0.15 C
1991
21.0 C
-0.17 C
1992
21.5 C
+0.25 C
1993
21.4 C
+0.23 C
1994
21.6 C
+0.40 C
1995
22.0 C
+0.82 C
1996
22.2 C
+1.01 C
1997
21.7 C
+0.52 C
1998
20.8 C
-0.43 C
1999
21.7 C
+0.49 C
2000
22.1 C
+0.89 C
2001
21.9 C
+0.69 C
2002
21.7 C
+0.48 C
2003
21.9 C
+0.71 C
2004
21.5 C
+0.24 C
2006
21.6 C
+0.43 C
2007
21.5 C
+0.31 C
2008
21.4 C
+0.21 C
2009
21.8 C
+0.56 C
2010
21.2 C
-0.05 C
2011
21.2 C
-0.06 C
2012
21.8 C
+0.56 C
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1953 to 2012. In Fahrenheit: 0.4 F (0.2 to 0.5) 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 Sonoita
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (0.1 to 0.3) per decade
0.4 F (0.2 to 0.5) per decade
1953 to 2012
56
Rise
Mean daily maximum
0.4 C (0.2 to 0.5) per decade
0.6 F (0.4 to 0.9) per decade
1953 to 2012
56
Rise
Mean daily minimum
0.07 C (-0.03 to 0.17) per decade
0.13 F (-0.05 to 0.30) per decade
1953 to 2012
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
1948 to 2013
Yearly extremes at Sonoita: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
48.9 C (120.0 F)
2001
45.0 C (113.0 F)
66
Coldest night (TNn)
-10.0 C (14.0 F)
1988
-4.4 C (24.1 F)
66
Wettest day (Rx1day)
130.3 mm (5.1 in)
2010
32.6 mm (1.3 in)
66
Wettest five days (Rx5day)
154.2 mm (6.1 in)
2010
42.3 mm (1.7 in)
66
Longest dry spell (CDD)
212 days
2002
102 days
66
Hottest day (TXx)
The hottest day of the year at Sonoita, 1948 to 2013. The record is 48.9 C (120.0 F) in 2001, marked on the chart; the median year is 45.0 C (113.0 F).
Hottest day (TXx) at Sonoita by year
Year
Hottest day (TXx)
1948
28.9 C (84.0 F)
1949
43.3 C (109.9 F)
1950
45.0 C (113.0 F)
1951
44.4 C (111.9 F)
1952
45.0 C (113.0 F)
1953
44.4 C (111.9 F)
1954
43.9 C (111.0 F)
1955
45.0 C (113.0 F)
1956
45.0 C (113.0 F)
1957
45.0 C (113.0 F)
1958
45.6 C (114.1 F)
1959
43.9 C (111.0 F)
1960
45.0 C (113.0 F)
1961
45.6 C (114.1 F)
1962
45.6 C (114.1 F)
1963
43.3 C (109.9 F)
1964
45.6 C (114.1 F)
1965
43.9 C (111.0 F)
1966
43.3 C (109.9 F)
1967
41.7 C (107.1 F)
1968
43.9 C (111.0 F)
1969
45.0 C (113.0 F)
1970
43.9 C (111.0 F)
1971
41.1 C (106.0 F)
1972
45.0 C (113.0 F)
1973
45.0 C (113.0 F)
1974
46.1 C (115.0 F)
1975
45.0 C (113.0 F)
1976
46.1 C (115.0 F)
1977
43.9 C (111.0 F)
1978
45.6 C (114.1 F)
1979
45.6 C (114.1 F)
1980
45.0 C (113.0 F)
1981
46.1 C (115.0 F)
1982
43.9 C (111.0 F)
1983
46.1 C (115.0 F)
1984
45.0 C (113.0 F)
1985
47.2 C (117.0 F)
1986
45.0 C (113.0 F)
1987
45.0 C (113.0 F)
1988
45.0 C (113.0 F)
1989
46.1 C (115.0 F)
1990
48.3 C (118.9 F)
1991
43.3 C (109.9 F)
1992
45.0 C (113.0 F)
1993
46.1 C (115.0 F)
1994
46.7 C (116.1 F)
1995
48.3 C (118.9 F)
1996
46.7 C (116.1 F)
1997
45.0 C (113.0 F)
1998
47.8 C (118.0 F)
1999
45.6 C (114.1 F)
2000
46.1 C (115.0 F)
2001
48.9 C (120.0 F)
2002
45.0 C (113.0 F)
2003
46.1 C (115.0 F)
2004
44.4 C (111.9 F)
2005
45.6 C (114.1 F)
2006
46.7 C (116.1 F)
2007
45.6 C (114.1 F)
2008
45.0 C (113.0 F)
2009
46.7 C (116.1 F)
2010
46.7 C (116.1 F)
2011
46.7 C (116.1 F)
2012
45.6 C (114.1 F)
2013
45.0 C (113.0 F)
Coldest night (TNn)
The coldest night of the year at Sonoita, 1948 to 2013. The record is -10.0 C (14.0 F) in 1988, marked on the chart; the median year is -4.4 C (24.1 F).
Coldest night (TNn) at Sonoita by year
Year
Coldest night (TNn)
1948
-2.2 C (28.0 F)
1949
-8.3 C (17.1 F)
1950
-6.1 C (21.0 F)
1951
-4.4 C (24.1 F)
1952
-5.0 C (23.0 F)
1953
-5.0 C (23.0 F)
1954
-6.1 C (21.0 F)
1955
-5.0 C (23.0 F)
1956
-2.8 C (27.0 F)
1957
-1.1 C (30.0 F)
1958
-4.4 C (24.1 F)
1959
-6.1 C (21.0 F)
1960
-5.0 C (23.0 F)
1961
0.0 C (32.0 F)
1962
-4.4 C (24.1 F)
1963
-5.6 C (21.9 F)
1964
-5.6 C (21.9 F)
1965
-3.9 C (25.0 F)
1966
-4.4 C (24.1 F)
1967
-4.4 C (24.1 F)
1968
0.0 C (32.0 F)
1969
0.0 C (32.0 F)
1970
-1.1 C (30.0 F)
1971
-6.1 C (21.0 F)
1972
-5.0 C (23.0 F)
1973
-1.1 C (30.0 F)
1974
-3.9 C (25.0 F)
1975
-1.1 C (30.0 F)
1976
-5.0 C (23.0 F)
1977
-1.7 C (28.9 F)
1978
-5.0 C (23.0 F)
1979
-5.0 C (23.0 F)
1980
0.0 C (32.0 F)
1981
-3.3 C (26.1 F)
1982
-2.2 C (28.0 F)
1983
-3.9 C (25.0 F)
1984
-3.3 C (26.1 F)
1985
-5.0 C (23.0 F)
1986
-2.8 C (27.0 F)
1987
-6.7 C (19.9 F)
1988
-10.0 C (14.0 F)
1989
-3.3 C (26.1 F)
1990
-6.7 C (19.9 F)
1991
-2.8 C (27.0 F)
1992
-2.2 C (28.0 F)
1993
-3.3 C (26.1 F)
1994
-2.8 C (27.0 F)
1995
-0.6 C (30.9 F)
1996
-1.7 C (28.9 F)
1997
-2.2 C (28.0 F)
1998
-5.0 C (23.0 F)
1999
-2.2 C (28.0 F)
2000
-3.3 C (26.1 F)
2001
-2.8 C (27.0 F)
2002
-6.7 C (19.9 F)
2003
-4.4 C (24.1 F)
2004
-5.0 C (23.0 F)
2005
-2.8 C (27.0 F)
2006
-4.4 C (24.1 F)
2007
-8.9 C (16.0 F)
2008
-4.4 C (24.1 F)
2009
-2.2 C (28.0 F)
2010
-5.0 C (23.0 F)
2011
-6.1 C (21.0 F)
2012
-1.7 C (28.9 F)
2013
-7.2 C (19.0 F)
Wettest day (Rx1day)
The wettest day of the year at Sonoita, 1948 to 2013. The record is 130.3 mm (5.1 in) in 2010, marked on the chart; the median year is 32.6 mm (1.3 in).
Wettest day (Rx1day) at Sonoita by year
Year
Wettest day (Rx1day)
1948
11.4 mm (0.4 in)
1949
30.0 mm (1.2 in)
1950
17.8 mm (0.7 in)
1951
12.4 mm (0.5 in)
1952
20.8 mm (0.8 in)
1953
16.0 mm (0.6 in)
1954
22.4 mm (0.9 in)
1955
21.3 mm (0.8 in)
1956
16.3 mm (0.6 in)
1957
18.8 mm (0.7 in)
1958
43.9 mm (1.7 in)
1959
44.5 mm (1.8 in)
1960
41.9 mm (1.6 in)
1961
79.0 mm (3.1 in)
1962
57.9 mm (2.3 in)
1963
47.0 mm (1.9 in)
1964
47.0 mm (1.9 in)
1965
39.6 mm (1.6 in)
1966
22.9 mm (0.9 in)
1967
34.8 mm (1.4 in)
1968
15.0 mm (0.6 in)
1969
37.8 mm (1.5 in)
1970
34.8 mm (1.4 in)
1971
23.9 mm (0.9 in)
1972
39.4 mm (1.6 in)
1973
12.2 mm (0.5 in)
1974
37.6 mm (1.5 in)
1975
27.9 mm (1.1 in)
1976
18.8 mm (0.7 in)
1977
29.0 mm (1.1 in)
1978
33.5 mm (1.3 in)
1979
58.9 mm (2.3 in)
1980
13.5 mm (0.5 in)
1981
26.4 mm (1.0 in)
1982
36.1 mm (1.4 in)
1983
62.7 mm (2.5 in)
1984
27.9 mm (1.1 in)
1985
25.9 mm (1.0 in)
1986
38.1 mm (1.5 in)
1987
47.8 mm (1.9 in)
1988
61.5 mm (2.4 in)
1989
31.5 mm (1.2 in)
1990
33.8 mm (1.3 in)
1991
28.2 mm (1.1 in)
1992
63.8 mm (2.5 in)
1993
33.3 mm (1.3 in)
1994
31.8 mm (1.3 in)
1995
29.2 mm (1.1 in)
1996
71.6 mm (2.8 in)
1997
49.5 mm (1.9 in)
1998
30.7 mm (1.2 in)
1999
16.8 mm (0.7 in)
2000
29.0 mm (1.1 in)
2001
23.9 mm (0.9 in)
2002
15.2 mm (0.6 in)
2003
53.8 mm (2.1 in)
2004
43.9 mm (1.7 in)
2005
43.4 mm (1.7 in)
2006
29.5 mm (1.2 in)
2007
35.3 mm (1.4 in)
2008
39.9 mm (1.6 in)
2009
11.7 mm (0.5 in)
2010
130.3 mm (5.1 in)
2011
28.4 mm (1.1 in)
2012
50.8 mm (2.0 in)
2013
68.3 mm (2.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Sonoita, 1948 to 2013. The record is 154.2 mm (6.1 in) in 2010, marked on the chart; the median year is 42.3 mm (1.7 in).
Wettest five days (Rx5day) at Sonoita by year
Year
Wettest five days (Rx5day)
1948
24.0 mm (0.9 in)
1949
31.8 mm (1.3 in)
1950
18.6 mm (0.7 in)
1951
21.3 mm (0.8 in)
1952
41.7 mm (1.6 in)
1953
18.1 mm (0.7 in)
1954
40.7 mm (1.6 in)
1955
33.8 mm (1.3 in)
1956
16.3 mm (0.6 in)
1957
32.8 mm (1.3 in)
1958
43.9 mm (1.7 in)
1959
45.6 mm (1.8 in)
1960
55.4 mm (2.2 in)
1961
98.8 mm (3.9 in)
1962
59.7 mm (2.4 in)
1963
47.0 mm (1.9 in)
1964
58.4 mm (2.3 in)
1965
65.3 mm (2.6 in)
1966
40.7 mm (1.6 in)
1967
71.7 mm (2.8 in)
1968
22.9 mm (0.9 in)
1969
37.8 mm (1.5 in)
1970
60.7 mm (2.4 in)
1971
31.8 mm (1.3 in)
1972
51.9 mm (2.0 in)
1973
18.9 mm (0.7 in)
1974
40.4 mm (1.6 in)
1975
34.0 mm (1.3 in)
1976
22.4 mm (0.9 in)
1977
35.8 mm (1.4 in)
1978
49.8 mm (2.0 in)
1979
71.6 mm (2.8 in)
1980
18.6 mm (0.7 in)
1981
36.4 mm (1.4 in)
1982
53.4 mm (2.1 in)
1983
88.0 mm (3.5 in)
1984
42.5 mm (1.7 in)
1985
26.7 mm (1.1 in)
1986
69.1 mm (2.7 in)
1987
53.4 mm (2.1 in)
1988
113.2 mm (4.5 in)
1989
34.3 mm (1.4 in)
1990
60.8 mm (2.4 in)
1991
31.5 mm (1.2 in)
1992
69.5 mm (2.7 in)
1993
54.4 mm (2.1 in)
1994
53.7 mm (2.1 in)
1995
29.2 mm (1.1 in)
1996
71.6 mm (2.8 in)
1997
70.1 mm (2.8 in)
1998
44.7 mm (1.8 in)
1999
20.1 mm (0.8 in)
2000
62.8 mm (2.5 in)
2001
37.6 mm (1.5 in)
2002
15.7 mm (0.6 in)
2003
64.2 mm (2.5 in)
2004
66.0 mm (2.6 in)
2005
57.6 mm (2.3 in)
2006
39.7 mm (1.6 in)
2007
38.6 mm (1.5 in)
2008
42.0 mm (1.7 in)
2009
11.7 mm (0.5 in)
2010
154.2 mm (6.1 in)
2011
41.9 mm (1.6 in)
2012
60.8 mm (2.4 in)
2013
92.0 mm (3.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Sonoita, 1948 to 2013. The record is 212 days in 2002, marked on the chart; the median year is 102 days.
Longest dry spell (CDD) at Sonoita by year
Year
Longest dry spell (CDD)
1948
39 days
1949
113 days
1950
53 days
1951
92 days
1952
83 days
1953
162 days
1954
90 days
1955
144 days
1956
132 days
1957
56 days
1958
112 days
1959
138 days
1960
158 days
1961
94 days
1962
105 days
1963
82 days
1964
194 days
1965
95 days
1966
128 days
1967
142 days
1968
163 days
1969
72 days
1970
75 days
1971
147 days
1972
158 days
1973
104 days
1974
119 days
1975
80 days
1976
49 days
1977
54 days
1978
76 days
1979
107 days
1980
119 days
1981
55 days
1982
109 days
1983
90 days
1984
91 days
1985
70 days
1986
107 days
1987
80 days
1988
79 days
1989
121 days
1990
96 days
1991
98 days
1992
101 days
1993
148 days
1994
96 days
1995
82 days
1996
133 days
1997
107 days
1998
106 days
1999
103 days
2000
112 days
2001
72 days
2002
212 days
2003
48 days
2004
110 days
2005
85 days
2006
116 days
2007
93 days
2008
96 days
2009
69 days
2010
126 days
2011
52 days
2012
107 days
2013
114 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
50 years with a frost
Across 50 years with a frost, the median last spring frost at Sonoita falls on 9 February and the median first autumn frost on 1 December, which leaves a median of 294 days between them.
Fitted over all years, the growing season changes by +0.4 days per decade at this station.
Frost dates and growing season at Sonoita
Measure
Median, all years
Earliest period
Recent period (1981 to 2012)
Recent against earliest
Fitted trend
Last spring frost
9 February
n/a
9 February
n/a
-0.3 days per decade
First autumn frost
1 December
n/a
30 November
n/a
0.0 days per decade
Growing days
294 days
n/a
291 days
n/a
+0.4 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
61 years, 1949 to 2012
A day with at least 32.3 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 103.6 mm (4.1 in) of rain is expected about once in 100 years.
Rainfall return levels at Sonoita: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
32.3 mm (1.3 in)
5 years
48.2 mm (1.9 in)
10 years
59.9 mm (2.4 in)
25 years
76.2 mm (3.0 in)
50 years
89.4 mm (3.5 in)
100 years
103.6 mm (4.1 in)
Longer than the 61 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, 61 years of values from 1949 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: 130.3 mm (5.1 in) in 2010; 79.0 mm (3.1 in) in 1961; 71.6 mm (2.8 in) in 1996.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Sonoita, at 2001. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 2001 ran 0.5 C (0.9 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Sonoita, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
2001
-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.
Download the Data
Data for Sonoita standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Sonoita 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.