Record envelope, standing records and threshold days for Cortaro 3 SW (USC00022159), Arizona, United States, with 32 years of record.
Key Facts for Cortaro 3 SW
Cortaro 3 SW (USC00022159) is a weather station in Arizona, United States at 32.33 latitude and -111.12 longitude, 692 m (2,270 ft) above sea level.
The station reports from 1945 to 1976, 32 years of record.
1,464 records set at Cortaro 3 SW still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Cortaro 3 SW set a daily record low minimum temperature of 15.6 C (60.1 F) on 7 September 1976.
About the Station
Location: Arizona, United States, 32.33 latitude, -111.12 longitude.
Elevation: 692 m (2,270 ft).
Period of record: 1945 to 1976, 32 years.
Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Cortaro 3 SW. 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 Cortaro 3 SW, 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)
-11.1 C (12.0 F)
n/a
n/a
Feb
32.8 C (91.0 F)
-10.6 C (12.9 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)
-4.4 C (24.1 F)
n/a
n/a
May
44.4 C (111.9 F)
0.0 C (32.0 F)
n/a
n/a
Jun
46.7 C (116.1 F)
6.7 C (44.1 F)
n/a
n/a
Jul
48.9 C (120.0 F)
12.8 C (55.0 F)
n/a
n/a
Aug
46.1 C (115.0 F)
13.9 C (57.0 F)
n/a
n/a
Sep
45.0 C (113.0 F)
7.2 C (45.0 F)
n/a
n/a
Oct
44.4 C (111.9 F)
-2.8 C (27.0 F)
n/a
n/a
Nov
35.6 C (96.1 F)
-6.7 C (19.9 F)
n/a
n/a
Dec
31.1 C (88.0 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 Cortaro 3 SW still stand. 1955 holds the most, with 99.
Standing records at Cortaro 3 SW by the year they were set
Year set
Standing records
1945
36
1946
60
1947
57
1948
63
1949
52
1950
63
1951
46
1952
33
1953
64
1954
44
1955
99
1956
62
1957
38
1958
45
1959
37
1960
48
1961
27
1962
52
1963
49
1964
46
1965
60
1966
35
1967
46
1968
33
1969
35
1970
37
1971
45
1972
42
1973
30
1974
30
1975
24
1976
26
Wettest Day of Each Month
Sep: 120.7 mm (4.8 in)
The wettest day on record for each calendar month at Cortaro 3 SW. The most was 120.7 mm (4.8 in) on 26 September 1962.
Record daily precipitation for each month at Cortaro 3 SW
Month
Record daily precipitation (mm)
Date
Jan
28.7 mm (1.1 in)
11 January 1960
Feb
44.5 mm (1.8 in)
21 February 1973
Mar
30.7 mm (1.2 in)
7 March 1958
Apr
25.4 mm (1.0 in)
20 April 1952
May
17.0 mm (0.7 in)
7 May 1969
Jun
21.6 mm (0.9 in)
1 June 1963
Jul
112.0 mm (4.4 in)
14 July 1953
Aug
42.9 mm (1.7 in)
13 August 1971
Sep
120.7 mm (4.8 in)
26 September 1962
Oct
62.2 mm (2.4 in)
5 October 1945
Nov
39.4 mm (1.6 in)
24 November 1972
Dec
49.5 mm (1.9 in)
15 December 1967
Period of Record Coverage
1945 to 1976
Complete yearUnder 90 percent of days
32 years of record at Cortaro 3 SW, 1945 to 1976. 5 years have data for under 90 percent of days and are left out of rankings: 1945, 1963, 1969, 1975, 1976.
Cooler than the station meanWarmer than the station mean
One stripe for each of 21 complete years at Cortaro 3 SW, 1946 to 1974. Blue stripes are years cooler than the station's own mean of 20.3 C (68.5 F); red stripes are warmer. The coolest year was 1955, at 19.2 C (66.6 F), and the warmest was 1950, at 21.2 C (70.1 F). The strongest colour marks a difference of 1.1 C (2.0 F).
Annual mean temperature at Cortaro 3 SW as warming stripes, 1946 to 1974
Year
Annual mean temperature
Difference from the station mean
1946
19.9 C
-0.38 C
1947
20.0 C
-0.31 C
1948
20.0 C
-0.25 C
1949
20.0 C
-0.30 C
1950
21.2 C
+0.91 C
1951
20.6 C
+0.32 C
1953
20.0 C
-0.28 C
1955
19.2 C
-1.06 C
1958
20.2 C
-0.04 C
1959
20.8 C
+0.49 C
1960
20.6 C
+0.34 C
1961
20.6 C
+0.38 C
1962
20.9 C
+0.63 C
1965
20.3 C
+0.03 C
1966
20.4 C
+0.14 C
1967
20.3 C
+0.01 C
1970
20.5 C
+0.19 C
1971
19.6 C
-0.68 C
1972
20.5 C
+0.20 C
1973
19.7 C
-0.52 C
1974
20.5 C
+0.26 C
This station does not have enough complete years (30 are needed) to fit a temperature trend.
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
1945 to 1976
Yearly extremes at Cortaro 3 SW: 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)
1964
44.4 C (111.9 F)
32
Coldest night (TNn)
-11.1 C (12.0 F)
1948
-7.5 C (18.5 F)
32
Wettest day (Rx1day)
120.7 mm (4.8 in)
1962
34.5 mm (1.4 in)
32
Wettest five days (Rx5day)
140.5 mm (5.5 in)
1953
51.7 mm (2.0 in)
32
Longest dry spell (CDD)
150 days
1972
84 days
32
Hottest day (TXx)
The hottest day of the year at Cortaro 3 SW, 1945 to 1976. The record is 48.9 C (120.0 F) in 1964, marked on the chart; the median year is 44.4 C (111.9 F).
Hottest day (TXx) at Cortaro 3 SW by year
Year
Hottest day (TXx)
1945
43.3 C (109.9 F)
1946
43.3 C (109.9 F)
1947
45.0 C (113.0 F)
1948
43.9 C (111.0 F)
1949
43.9 C (111.0 F)
1950
45.0 C (113.0 F)
1951
44.4 C (111.9 F)
1952
44.4 C (111.9 F)
1953
45.0 C (113.0 F)
1954
43.9 C (111.0 F)
1955
45.6 C (114.1 F)
1956
45.0 C (113.0 F)
1957
45.6 C (114.1 F)
1958
46.1 C (115.0 F)
1959
45.0 C (113.0 F)
1960
46.1 C (115.0 F)
1961
44.4 C (111.9 F)
1962
45.0 C (113.0 F)
1963
43.3 C (109.9 F)
1964
48.9 C (120.0 F)
1965
43.3 C (109.9 F)
1966
43.9 C (111.0 F)
1967
43.9 C (111.0 F)
1968
44.4 C (111.9 F)
1969
44.4 C (111.9 F)
1970
46.7 C (116.1 F)
1971
43.9 C (111.0 F)
1972
46.1 C (115.0 F)
1973
44.4 C (111.9 F)
1974
45.6 C (114.1 F)
1975
41.7 C (107.1 F)
1976
45.0 C (113.0 F)
Coldest night (TNn)
The coldest night of the year at Cortaro 3 SW, 1945 to 1976. The record is -11.1 C (12.0 F) in 1948, marked on the chart; the median year is -7.5 C (18.5 F).
Coldest night (TNn) at Cortaro 3 SW by year
Year
Coldest night (TNn)
1945
-6.1 C (21.0 F)
1946
-8.3 C (17.1 F)
1947
-8.3 C (17.1 F)
1948
-11.1 C (12.0 F)
1949
-9.4 C (15.1 F)
1950
-9.4 C (15.1 F)
1951
-5.6 C (21.9 F)
1952
-6.1 C (21.0 F)
1953
-7.8 C (18.0 F)
1954
-8.3 C (17.1 F)
1955
-7.8 C (18.0 F)
1956
-7.8 C (18.0 F)
1957
-3.3 C (26.1 F)
1958
-6.7 C (19.9 F)
1959
-7.2 C (19.0 F)
1960
-7.2 C (19.0 F)
1961
-1.1 C (30.0 F)
1962
-7.8 C (18.0 F)
1963
-7.2 C (19.0 F)
1964
-7.8 C (18.0 F)
1965
-5.0 C (23.0 F)
1966
-6.1 C (21.0 F)
1967
-7.8 C (18.0 F)
1968
-7.8 C (18.0 F)
1969
-4.4 C (24.1 F)
1970
-8.3 C (17.1 F)
1971
-8.9 C (16.0 F)
1972
-4.4 C (24.1 F)
1973
-7.2 C (19.0 F)
1974
-8.3 C (17.1 F)
1975
-5.6 C (21.9 F)
1976
-7.2 C (19.0 F)
Wettest day (Rx1day)
The wettest day of the year at Cortaro 3 SW, 1945 to 1976. The record is 120.7 mm (4.8 in) in 1962, marked on the chart; the median year is 34.5 mm (1.4 in).
Wettest day (Rx1day) at Cortaro 3 SW by year
Year
Wettest day (Rx1day)
1945
62.2 mm (2.4 in)
1946
29.0 mm (1.1 in)
1947
21.6 mm (0.9 in)
1948
22.4 mm (0.9 in)
1949
31.2 mm (1.2 in)
1950
21.6 mm (0.9 in)
1951
47.0 mm (1.9 in)
1952
39.9 mm (1.6 in)
1953
112.0 mm (4.4 in)
1954
33.3 mm (1.3 in)
1955
31.5 mm (1.2 in)
1956
48.5 mm (1.9 in)
1957
36.8 mm (1.4 in)
1958
72.4 mm (2.9 in)
1959
30.0 mm (1.2 in)
1960
28.7 mm (1.1 in)
1961
31.8 mm (1.3 in)
1962
120.7 mm (4.8 in)
1963
38.1 mm (1.5 in)
1964
32.0 mm (1.3 in)
1965
31.5 mm (1.2 in)
1966
45.0 mm (1.8 in)
1967
49.5 mm (1.9 in)
1968
38.4 mm (1.5 in)
1969
29.5 mm (1.2 in)
1970
35.6 mm (1.4 in)
1971
42.9 mm (1.7 in)
1972
46.0 mm (1.8 in)
1973
44.5 mm (1.8 in)
1974
14.2 mm (0.6 in)
1975
14.7 mm (0.6 in)
1976
18.8 mm (0.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Cortaro 3 SW, 1945 to 1976. The record is 140.5 mm (5.5 in) in 1953, marked on the chart; the median year is 51.7 mm (2.0 in).
Wettest five days (Rx5day) at Cortaro 3 SW by year
Year
Wettest five days (Rx5day)
1945
91.0 mm (3.6 in)
1946
56.7 mm (2.2 in)
1947
45.5 mm (1.8 in)
1948
32.5 mm (1.3 in)
1949
31.2 mm (1.2 in)
1950
40.4 mm (1.6 in)
1951
51.6 mm (2.0 in)
1952
50.8 mm (2.0 in)
1953
140.5 mm (5.5 in)
1954
59.5 mm (2.3 in)
1955
58.8 mm (2.3 in)
1956
51.8 mm (2.0 in)
1957
48.2 mm (1.9 in)
1958
88.1 mm (3.5 in)
1959
37.7 mm (1.5 in)
1960
49.1 mm (1.9 in)
1961
40.6 mm (1.6 in)
1962
122.0 mm (4.8 in)
1963
56.9 mm (2.2 in)
1964
77.2 mm (3.0 in)
1965
67.3 mm (2.6 in)
1966
67.6 mm (2.7 in)
1967
104.3 mm (4.1 in)
1968
48.5 mm (1.9 in)
1969
35.8 mm (1.4 in)
1970
88.2 mm (3.5 in)
1971
119.6 mm (4.7 in)
1972
72.5 mm (2.9 in)
1973
44.5 mm (1.8 in)
1974
30.1 mm (1.2 in)
1975
31.4 mm (1.2 in)
1976
36.6 mm (1.4 in)
Longest dry spell (CDD)
The longest dry spell of the year at Cortaro 3 SW, 1945 to 1976. The record is 150 days in 1972, marked on the chart; the median year is 84 days.
Longest dry spell (CDD) at Cortaro 3 SW by year
Year
Longest dry spell (CDD)
1945
74 days
1946
89 days
1947
110 days
1948
79 days
1949
85 days
1950
58 days
1951
72 days
1952
46 days
1953
84 days
1954
68 days
1955
114 days
1956
133 days
1957
47 days
1958
72 days
1959
127 days
1960
100 days
1961
77 days
1962
98 days
1963
54 days
1964
117 days
1965
59 days
1966
92 days
1967
56 days
1968
65 days
1969
56 days
1970
132 days
1971
90 days
1972
150 days
1973
87 days
1974
108 days
1975
81 days
1976
84 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
21 years with a frost
Across 21 years with a frost, the median last spring frost at Cortaro 3 SW falls on 21 March and the median first autumn frost on 19 November, which leaves a median of 241 days between them.
Frost dates and growing season at Cortaro 3 SW
Measure
Median, all years
Earliest period
Recent period (1946 to 1974)
Recent against earliest
Fitted trend
Last spring frost
21 March
n/a
21 March
n/a
n/a
First autumn frost
19 November
n/a
19 November
n/a
n/a
Growing days
241 days
n/a
241 days
n/a
n/a
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.
Download the Data
Data for Cortaro 3 SW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Cortaro 3 SW 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.