Santa Rita Exp Range Weather Records (USC00027593)
Record envelope, standing records and threshold days for Santa Rita Exp Range (USC00027593), Arizona, United States, with 61 years of record.
Key Facts for Santa Rita Exp Range
Santa Rita Exp Range (USC00027593) is a weather station in Arizona, United States at 31.76 latitude and -110.85 longitude, 1,311 m (4,300 ft) above sea level.
The station reports from 1950 to 2010, 61 years of record.
1,464 records set at Santa Rita Exp Range still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Santa Rita Exp Range set a daily record low maximum temperature of 28.3 C (82.9 F) on 27 June 2010.
About the Station
Location: Arizona, United States, 31.76 latitude, -110.85 longitude.
Elevation: 1,311 m (4,300 ft).
Period of record: 1950 to 2010, 61 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
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 Santa Rita Exp Range. 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 Santa Rita Exp Range, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
27.2 C (81.0 F)
-11.1 C (12.0 F)
n/a
n/a
Feb
28.3 C (82.9 F)
-11.7 C (10.9 F)
n/a
n/a
Mar
31.7 C (89.1 F)
-8.3 C (17.1 F)
n/a
n/a
Apr
35.0 C (95.0 F)
-4.4 C (24.1 F)
n/a
n/a
May
39.4 C (102.9 F)
0.6 C (33.1 F)
n/a
n/a
Jun
41.7 C (107.1 F)
4.4 C (39.9 F)
n/a
n/a
Jul
41.1 C (106.0 F)
10.0 C (50.0 F)
n/a
n/a
Aug
40.0 C (104.0 F)
6.7 C (44.1 F)
n/a
n/a
Sep
38.9 C (102.0 F)
7.2 C (45.0 F)
n/a
n/a
Oct
34.4 C (93.9 F)
-5.0 C (23.0 F)
n/a
n/a
Nov
30.6 C (87.1 F)
-6.7 C (19.9 F)
n/a
n/a
Dec
28.3 C (82.9 F)
-11.7 C (10.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Santa Rita Exp Range still stand. 1980 holds the most, with 47.
Standing records at Santa Rita Exp Range by the year they were set
Year set
Standing records
1950
33
1951
31
1952
35
1953
17
1954
28
1955
34
1956
35
1957
27
1958
16
1959
22
1960
23
1961
20
1962
42
1963
27
1964
25
1965
32
1966
16
1967
20
1968
31
1969
29
1970
29
1971
46
1972
32
1973
28
1974
16
1975
19
1976
32
1977
42
1978
25
1979
45
1980
47
1981
25
1982
23
1983
17
1984
17
1985
22
1986
33
1987
15
1988
13
1989
36
1990
29
1991
19
1992
18
1993
13
1994
16
1995
28
1996
32
1997
19
1998
23
1999
18
2000
36
2001
15
2002
14
2003
18
2004
19
2005
9
2006
10
2007
9
2008
1
2009
6
2010
7
All-Time Record Progression
2 new records
2 all-time records were set at Santa Rita Exp Range between 24 August 1992 and 30 June 1994. Each dot is a new record.
When Santa Rita Exp Range set new all-time records
Date
Kind
Detail
1992-08-24
Record daily precipitation
Record daily precipitation 118.1 mm (4.6 in)
1994-06-30
Record high minimum temperature
Record high minimum temperature 28.9 C (84.0 F)
Wettest Day of Each Month
Aug: 118.1 mm (4.6 in)
The wettest day on record for each calendar month at Santa Rita Exp Range. The most was 118.1 mm (4.6 in) on 24 August 1992.
Record daily precipitation for each month at Santa Rita Exp Range
Month
Record daily precipitation (mm)
Date
Jan
69.9 mm (2.8 in)
22 January 2010
Feb
51.6 mm (2.0 in)
14 February 1980
Mar
44.5 mm (1.8 in)
23 March 1954
Apr
67.3 mm (2.6 in)
6 April 2001
May
24.6 mm (1.0 in)
22 May 1992
Jun
105.4 mm (4.1 in)
29 June 1959
Jul
89.9 mm (3.5 in)
19 July 1985
Aug
118.1 mm (4.6 in)
24 August 1992
Sep
97.8 mm (3.9 in)
10 September 1964
Oct
94.5 mm (3.7 in)
5 October 1989
Nov
62.5 mm (2.5 in)
21 November 1963
Dec
71.1 mm (2.8 in)
15 December 1967
Period of Record Coverage
1950 to 2010
Complete yearUnder 90 percent of days
61 years of record at Santa Rita Exp Range, 1950 to 2010. 15 years have data for under 90 percent of days and are left out of rankings: 1950, 1957, 1958, 1969, 1970, 1976, 1980, 1981 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 41 complete years at Santa Rita Exp Range, 1951 to 2004. Blue stripes are years cooler than the station's own mean of 17.9 C (64.1 F); red stripes are warmer. The coolest year was 1964, at 16.6 C (62.0 F), and the warmest was 1996, at 19.1 C (66.3 F). The strongest colour marks a difference of 1.3 C (2.3 F).
Annual mean temperature at Santa Rita Exp Range as warming stripes, 1951 to 2004
Year
Annual mean temperature
Difference from the station mean
1951
18.0 C
+0.10 C
1952
17.8 C
-0.02 C
1954
18.8 C
+0.98 C
1955
17.5 C
-0.41 C
1959
18.0 C
+0.13 C
1961
17.5 C
-0.35 C
1962
17.9 C
+0.08 C
1963
17.8 C
-0.02 C
1964
16.6 C
-1.22 C
1965
17.6 C
-0.29 C
1966
17.8 C
-0.09 C
1967
17.7 C
-0.14 C
1968
17.2 C
-0.63 C
1969
17.5 C
-0.36 C
1971
16.7 C
-1.19 C
1972
17.6 C
-0.22 C
1973
17.5 C
-0.35 C
1974
17.5 C
-0.35 C
1977
17.3 C
-0.61 C
1978
17.9 C
+0.03 C
1984
17.1 C
-0.75 C
1985
17.6 C
-0.23 C
1986
18.5 C
+0.61 C
1987
17.6 C
-0.31 C
1988
17.9 C
+0.08 C
1989
19.1 C
+1.19 C
1990
17.2 C
-0.67 C
1991
17.1 C
-0.74 C
1992
17.6 C
-0.27 C
1993
17.8 C
-0.07 C
1994
18.3 C
+0.47 C
1995
18.7 C
+0.83 C
1996
19.1 C
+1.19 C
1997
18.3 C
+0.46 C
1998
17.7 C
-0.15 C
1999
18.6 C
+0.78 C
2000
18.6 C
+0.75 C
2001
17.9 C
+0.05 C
2002
18.6 C
+0.71 C
2003
18.9 C
+1.07 C
2004
17.8 C
-0.04 C
The annual mean temperature here has risen by 0.14 C (0.03 to 0.25) per decade over 1951 to 2004. In Fahrenheit: 0.25 F (0.05 to 0.45) 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 Santa Rita Exp Range
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.14 C (0.03 to 0.25) per decade
0.25 F (0.05 to 0.45) per decade
1951 to 2004
41
Rise
Mean daily maximum
0.1 C (-0.1 to 0.2) per decade
0.1 F (-0.1 to 0.4) per decade
1951 to 2004
41
Not clearly different from zero
Mean daily minimum
0.21 C (0.03 to 0.38) per decade
0.4 F (0.1 to 0.7) per decade
1951 to 2004
41
Rise
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
1950 to 2010
Yearly extremes at Santa Rita Exp Range: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
41.7 C (107.1 F)
1970
38.9 C (102.0 F)
61
Coldest night (TNn)
-11.7 C (10.9 F)
1974
-5.0 C (23.0 F)
61
Wettest day (Rx1day)
118.1 mm (4.6 in)
1992
49.5 mm (1.9 in)
61
Wettest five days (Rx5day)
142.8 mm (5.6 in)
1967
79.6 mm (3.1 in)
61
Longest dry spell (CDD)
149 days
1972
58 days
61
Hottest day (TXx)
The hottest day of the year at Santa Rita Exp Range, 1950 to 2010. The record is 41.7 C (107.1 F) in 1970, marked on the chart; the median year is 38.9 C (102.0 F).
Hottest day (TXx) at Santa Rita Exp Range by year
Year
Hottest day (TXx)
1950
38.9 C (102.0 F)
1951
38.3 C (100.9 F)
1952
38.9 C (102.0 F)
1953
40.0 C (104.0 F)
1954
39.4 C (102.9 F)
1955
38.9 C (102.0 F)
1956
38.9 C (102.0 F)
1957
40.0 C (104.0 F)
1958
39.4 C (102.9 F)
1959
38.3 C (100.9 F)
1960
40.6 C (105.1 F)
1961
38.9 C (102.0 F)
1962
38.3 C (100.9 F)
1963
37.8 C (100.0 F)
1964
38.9 C (102.0 F)
1965
38.9 C (102.0 F)
1966
38.3 C (100.9 F)
1967
37.8 C (100.0 F)
1968
40.6 C (105.1 F)
1969
40.0 C (104.0 F)
1970
41.7 C (107.1 F)
1971
39.4 C (102.9 F)
1972
40.0 C (104.0 F)
1973
40.0 C (104.0 F)
1974
40.6 C (105.1 F)
1975
38.9 C (102.0 F)
1976
38.3 C (100.9 F)
1977
39.4 C (102.9 F)
1978
40.6 C (105.1 F)
1979
41.1 C (106.0 F)
1980
41.7 C (107.1 F)
1981
38.9 C (102.0 F)
1982
38.3 C (100.9 F)
1983
40.0 C (104.0 F)
1984
37.8 C (100.0 F)
1985
40.0 C (104.0 F)
1986
38.9 C (102.0 F)
1987
37.2 C (99.0 F)
1988
38.9 C (102.0 F)
1989
40.0 C (104.0 F)
1990
41.1 C (106.0 F)
1991
37.2 C (99.0 F)
1992
38.9 C (102.0 F)
1993
39.4 C (102.9 F)
1994
40.6 C (105.1 F)
1995
41.1 C (106.0 F)
1996
38.3 C (100.9 F)
1997
39.4 C (102.9 F)
1998
39.4 C (102.9 F)
1999
38.3 C (100.9 F)
2000
38.3 C (100.9 F)
2001
38.9 C (102.0 F)
2002
38.9 C (102.0 F)
2003
38.3 C (100.9 F)
2004
37.2 C (99.0 F)
2005
38.3 C (100.9 F)
2006
36.1 C (97.0 F)
2007
33.9 C (93.0 F)
2008
27.8 C (82.0 F)
2009
36.7 C (98.1 F)
2010
35.6 C (96.1 F)
Coldest night (TNn)
The coldest night of the year at Santa Rita Exp Range, 1950 to 2010. The record is -11.7 C (10.9 F) in 1974, marked on the chart; the median year is -5.0 C (23.0 F).
Coldest night (TNn) at Santa Rita Exp Range by year
Year
Coldest night (TNn)
1950
0.6 C (33.1 F)
1951
-5.0 C (23.0 F)
1952
-5.0 C (23.0 F)
1953
-5.6 C (21.9 F)
1954
-5.0 C (23.0 F)
1955
-7.2 C (19.0 F)
1956
-7.2 C (19.0 F)
1957
-3.3 C (26.1 F)
1958
-6.7 C (19.9 F)
1959
-3.9 C (25.0 F)
1960
-6.7 C (19.9 F)
1961
-2.8 C (27.0 F)
1962
-11.1 C (12.0 F)
1963
-9.4 C (15.1 F)
1964
-3.9 C (25.0 F)
1965
-6.7 C (19.9 F)
1966
-6.1 C (21.0 F)
1967
-4.4 C (24.1 F)
1968
-9.4 C (15.1 F)
1969
-5.0 C (23.0 F)
1970
-7.2 C (19.0 F)
1971
-10.6 C (12.9 F)
1972
-6.7 C (19.9 F)
1973
-6.7 C (19.9 F)
1974
-11.7 C (10.9 F)
1975
-5.6 C (21.9 F)
1976
-6.7 C (19.9 F)
1977
-4.4 C (24.1 F)
1978
-11.7 C (10.9 F)
1979
-8.9 C (16.0 F)
1980
-4.4 C (24.1 F)
1981
-3.3 C (26.1 F)
1982
-3.3 C (26.1 F)
1983
-3.3 C (26.1 F)
1984
-5.0 C (23.0 F)
1985
-8.3 C (17.1 F)
1986
-3.9 C (25.0 F)
1987
-10.0 C (14.0 F)
1988
-6.1 C (21.0 F)
1989
-4.4 C (24.1 F)
1990
-9.4 C (15.1 F)
1991
-4.4 C (24.1 F)
1992
-2.8 C (27.0 F)
1993
-2.2 C (28.0 F)
1994
-3.9 C (25.0 F)
1995
-3.3 C (26.1 F)
1996
-3.9 C (25.0 F)
1997
-6.1 C (21.0 F)
1998
-4.4 C (24.1 F)
1999
-3.3 C (26.1 F)
2000
-1.1 C (30.0 F)
2001
-4.4 C (24.1 F)
2002
-5.0 C (23.0 F)
2003
-6.7 C (19.9 F)
2004
-5.0 C (23.0 F)
2005
-2.2 C (28.0 F)
2006
-2.2 C (28.0 F)
2007
-3.9 C (25.0 F)
2008
3.3 C (37.9 F)
2009
0.6 C (33.1 F)
2010
-1.7 C (28.9 F)
Wettest day (Rx1day)
The wettest day of the year at Santa Rita Exp Range, 1950 to 2010. The record is 118.1 mm (4.6 in) in 1992, marked on the chart; the median year is 49.5 mm (1.9 in).
Wettest day (Rx1day) at Santa Rita Exp Range by year
Year
Wettest day (Rx1day)
1950
84.3 mm (3.3 in)
1951
59.7 mm (2.4 in)
1952
41.1 mm (1.6 in)
1953
31.0 mm (1.2 in)
1954
44.5 mm (1.8 in)
1955
58.4 mm (2.3 in)
1956
33.0 mm (1.3 in)
1957
35.3 mm (1.4 in)
1958
50.8 mm (2.0 in)
1959
105.4 mm (4.1 in)
1960
41.9 mm (1.6 in)
1961
37.8 mm (1.5 in)
1962
28.7 mm (1.1 in)
1963
62.5 mm (2.5 in)
1964
97.8 mm (3.9 in)
1965
63.0 mm (2.5 in)
1966
50.8 mm (2.0 in)
1967
71.1 mm (2.8 in)
1968
33.0 mm (1.3 in)
1969
31.8 mm (1.3 in)
1970
38.6 mm (1.5 in)
1971
47.2 mm (1.9 in)
1972
68.6 mm (2.7 in)
1973
35.6 mm (1.4 in)
1974
68.6 mm (2.7 in)
1975
53.3 mm (2.1 in)
1976
55.1 mm (2.2 in)
1977
50.3 mm (2.0 in)
1978
55.9 mm (2.2 in)
1979
50.8 mm (2.0 in)
1980
53.3 mm (2.1 in)
1981
38.1 mm (1.5 in)
1982
33.5 mm (1.3 in)
1983
69.9 mm (2.8 in)
1984
60.5 mm (2.4 in)
1985
89.9 mm (3.5 in)
1986
34.3 mm (1.4 in)
1987
58.9 mm (2.3 in)
1988
65.5 mm (2.6 in)
1989
94.5 mm (3.7 in)
1990
74.4 mm (2.9 in)
1991
29.0 mm (1.1 in)
1992
118.1 mm (4.6 in)
1993
49.5 mm (1.9 in)
1994
56.4 mm (2.2 in)
1995
30.7 mm (1.2 in)
1996
40.6 mm (1.6 in)
1997
38.9 mm (1.5 in)
1998
43.7 mm (1.7 in)
1999
55.9 mm (2.2 in)
2000
49.5 mm (1.9 in)
2001
67.3 mm (2.6 in)
2002
38.1 mm (1.5 in)
2003
37.1 mm (1.5 in)
2004
40.4 mm (1.6 in)
2005
41.9 mm (1.6 in)
2006
8.4 mm (0.33 in)
2007
40.4 mm (1.6 in)
2008
24.6 mm (1.0 in)
2009
38.1 mm (1.5 in)
2010
69.9 mm (2.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at Santa Rita Exp Range, 1950 to 2010. The record is 142.8 mm (5.6 in) in 1967, marked on the chart; the median year is 79.6 mm (3.1 in).
Wettest five days (Rx5day) at Santa Rita Exp Range by year
Year
Wettest five days (Rx5day)
1950
108.7 mm (4.3 in)
1951
61.7 mm (2.4 in)
1952
47.5 mm (1.9 in)
1953
55.9 mm (2.2 in)
1954
92.5 mm (3.6 in)
1955
111.2 mm (4.4 in)
1956
51.1 mm (2.0 in)
1957
65.6 mm (2.6 in)
1958
76.7 mm (3.0 in)
1959
107.2 mm (4.2 in)
1960
53.4 mm (2.1 in)
1961
74.5 mm (2.9 in)
1962
45.0 mm (1.8 in)
1963
95.9 mm (3.8 in)
1964
117.1 mm (4.6 in)
1965
116.6 mm (4.6 in)
1966
96.0 mm (3.8 in)
1967
142.8 mm (5.6 in)
1968
74.9 mm (2.9 in)
1969
55.5 mm (2.2 in)
1970
68.8 mm (2.7 in)
1971
68.0 mm (2.7 in)
1972
85.8 mm (3.4 in)
1973
77.7 mm (3.1 in)
1974
78.0 mm (3.1 in)
1975
59.4 mm (2.3 in)
1976
98.6 mm (3.9 in)
1977
93.4 mm (3.7 in)
1978
97.6 mm (3.8 in)
1979
75.9 mm (3.0 in)
1980
98.6 mm (3.9 in)
1981
79.0 mm (3.1 in)
1982
80.3 mm (3.2 in)
1983
101.5 mm (4.0 in)
1984
98.1 mm (3.9 in)
1985
138.1 mm (5.4 in)
1986
51.2 mm (2.0 in)
1987
65.0 mm (2.6 in)
1988
96.1 mm (3.8 in)
1989
96.1 mm (3.8 in)
1990
117.9 mm (4.6 in)
1991
55.4 mm (2.2 in)
1992
118.4 mm (4.7 in)
1993
94.5 mm (3.7 in)
1994
79.6 mm (3.1 in)
1995
41.7 mm (1.6 in)
1996
55.4 mm (2.2 in)
1997
57.5 mm (2.3 in)
1998
65.8 mm (2.6 in)
1999
80.2 mm (3.2 in)
2000
86.6 mm (3.4 in)
2001
100.9 mm (4.0 in)
2002
86.1 mm (3.4 in)
2003
62.0 mm (2.4 in)
2004
84.8 mm (3.3 in)
2005
105.1 mm (4.1 in)
2006
13.5 mm (0.5 in)
2007
58.4 mm (2.3 in)
2008
24.6 mm (1.0 in)
2009
43.9 mm (1.7 in)
2010
131.1 mm (5.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at Santa Rita Exp Range, 1950 to 2010. The record is 149 days in 1972, marked on the chart; the median year is 58 days.
Longest dry spell (CDD) at Santa Rita Exp Range by year
Year
Longest dry spell (CDD)
1950
115 days
1951
57 days
1952
46 days
1953
61 days
1954
63 days
1955
136 days
1956
60 days
1957
43 days
1958
64 days
1959
58 days
1960
72 days
1961
78 days
1962
94 days
1963
73 days
1964
83 days
1965
79 days
1966
85 days
1967
46 days
1968
84 days
1969
54 days
1970
71 days
1971
53 days
1972
149 days
1973
75 days
1974
102 days
1975
75 days
1976
55 days
1977
46 days
1978
54 days
1979
58 days
1980
57 days
1981
31 days
1982
19 days
1983
46 days
1984
83 days
1985
52 days
1986
72 days
1987
54 days
1988
49 days
1989
50 days
1990
35 days
1991
67 days
1992
41 days
1993
43 days
1994
28 days
1995
64 days
1996
102 days
1997
45 days
1998
91 days
1999
99 days
2000
116 days
2001
31 days
2002
112 days
2003
44 days
2004
70 days
2005
40 days
2006
61 days
2007
58 days
2008
26 days
2009
48 days
2010
29 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
40 years with a frost
Across 40 years with a frost, the median last spring frost at Santa Rita Exp Range falls on 16 March and the median first autumn frost on 21 November, which leaves a median of 249 days between them.
Fitted over all years, the growing season changes by +3.8 days per decade at this station.
Frost dates and growing season at Santa Rita Exp Range
Measure
Median, all years
Earliest period
Recent period (1966 to 2004)
Recent against earliest
Fitted trend
Last spring frost
16 March
n/a
16 March
n/a
-3.1 days per decade
First autumn frost
21 November
n/a
22 November
n/a
+0.7 days per decade
Growing days
249 days
n/a
251 days
n/a
+3.8 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
52 years, 1951 to 2004
A day with at least 49.4 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 126.1 mm (5.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Santa Rita Exp Range: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
49.4 mm (1.9 in)
5 years
67.0 mm (2.6 in)
10 years
79.8 mm (3.1 in)
25 years
97.2 mm (3.8 in)
50 years
111.2 mm (4.4 in)
100 years
126.1 mm (5.0 in)
Longer than the 52 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, 52 years of values from 1951 to 2004.
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: 118.1 mm (4.6 in) in 1992; 105.4 mm (4.1 in) in 1959; 97.8 mm (3.9 in) in 1964.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Santa Rita Exp Range standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Santa Rita Exp Range 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.