Record envelope, standing records and threshold days for Douglas (USC00022659), Arizona, United States, with 75 years of record.
Key Facts for Douglas
Douglas (USC00022659) is a weather station in Arizona, United States at 31.34 latitude and -109.54 longitude, 1,231 m (4,040 ft) above sea level.
The station reports from 1948 to 2022, 75 years of record.
1,464 records set at Douglas still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Douglas set a daily record precipitation of 44.5 mm (1.8 in) on 24 July 2021.
About the Station
Location: Arizona, United States, 31.34 latitude, -109.54 longitude.
Elevation: 1,231 m (4,040 ft).
Period of record: 1948 to 2022, 75 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 Douglas. 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 Douglas, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
27.8 C (82.0 F)
-13.9 C (7.0 F)
n/a
n/a
Feb
32.8 C (91.0 F)
-14.4 C (6.1 F)
n/a
n/a
Mar
32.8 C (91.0 F)
-8.9 C (16.0 F)
n/a
n/a
Apr
36.1 C (97.0 F)
-4.4 C (24.1 F)
n/a
n/a
May
40.0 C (104.0 F)
-2.8 C (27.0 F)
n/a
n/a
Jun
43.9 C (111.0 F)
3.3 C (37.9 F)
n/a
n/a
Jul
41.7 C (107.1 F)
6.7 C (44.1 F)
n/a
n/a
Aug
40.6 C (105.1 F)
7.2 C (45.0 F)
n/a
n/a
Sep
38.3 C (100.9 F)
3.9 C (39.0 F)
n/a
n/a
Oct
36.1 C (97.0 F)
-6.7 C (19.9 F)
n/a
n/a
Nov
31.7 C (89.1 F)
-12.8 C (9.0 F)
n/a
n/a
Dec
26.7 C (80.1 F)
-16.7 C (1.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Douglas still stand. 1992 holds the most, with 61.
Standing records at Douglas by the year they were set
Year set
Standing records
1964
4
1965
47
1966
20
1967
39
1968
56
1969
48
1970
30
1971
46
1972
22
1973
38
1974
35
1975
41
1976
25
1977
31
1978
32
1979
39
1980
37
1981
19
1982
18
1983
28
1984
23
1985
30
1986
29
1987
41
1988
21
1989
33
1990
47
1991
32
1992
61
1993
31
1994
3
2001
5
2002
34
2003
52
2004
16
2005
34
2006
17
2007
21
2008
9
2009
13
2010
8
2011
26
2012
36
2013
21
2014
26
2015
38
2016
44
2017
18
2018
12
2019
7
2020
21
All-Time Record Progression
3 new records
3 all-time records were set at Douglas between 10 September 2003 and 19 June 2016. Each dot is a new record.
When Douglas set new all-time records
Date
Kind
Detail
2003-09-10
Record high minimum temperature
Record high minimum temperature 27.8 C (82.0 F)
2012-08-09
Record high minimum temperature
Record high minimum temperature 30.6 C (87.1 F)
2016-06-19
Record high maximum temperature
Record high maximum temperature 43.9 C (111.0 F)
Wettest Day of Each Month
Aug: 114.8 mm (4.5 in)
The wettest day on record for each calendar month at Douglas. The most was 114.8 mm (4.5 in) on 4 August 1988.
Record daily precipitation for each month at Douglas
Month
Record daily precipitation (mm)
Date
Jan
30.5 mm (1.2 in)
31 January 2015
Feb
25.7 mm (1.0 in)
6 February 2005
Mar
55.9 mm (2.2 in)
3 March 2020
Apr
40.4 mm (1.6 in)
27 April 1985
May
23.4 mm (0.9 in)
9 May 2012
Jun
49.0 mm (1.9 in)
30 June 1981
Jul
58.4 mm (2.3 in)
10 July 2013
Aug
114.8 mm (4.5 in)
4 August 1988
Sep
74.9 mm (2.9 in)
4 September 1991
Oct
67.3 mm (2.6 in)
8 October 1977
Nov
101.6 mm (4.0 in)
28 November 2019
Dec
50.8 mm (2.0 in)
25 December 2019
Period of Record Coverage
1964 to 2021
Complete yearUnder 90 percent of days
52 years of record at Douglas, 1964 to 2021. 20 years have data for under 90 percent of days and are left out of rankings: 1964, 1994, 2001, 2004, 2005, 2006, 2007, 2008 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 33 complete years at Douglas, 1965 to 2015. Blue stripes are years cooler than the station's own mean of 17.0 C (62.5 F); red stripes are warmer. The coolest year was 1968, at 15.6 C (60.0 F), and the warmest was 2014, at 19.3 C (66.8 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Douglas as warming stripes, 1965 to 2015
Year
Annual mean temperature
Difference from the station mean
1965
17.0 C
+0.05 C
1966
16.8 C
-0.17 C
1967
16.7 C
-0.27 C
1968
15.6 C
-1.41 C
1969
16.6 C
-0.39 C
1970
16.6 C
-0.33 C
1971
16.6 C
-0.35 C
1972
16.9 C
-0.07 C
1973
16.3 C
-0.71 C
1974
16.4 C
-0.54 C
1975
15.9 C
-1.07 C
1976
16.1 C
-0.89 C
1977
16.7 C
-0.28 C
1978
16.3 C
-0.65 C
1979
16.2 C
-0.75 C
1980
16.5 C
-0.48 C
1981
17.6 C
+0.58 C
1982
17.2 C
+0.25 C
1983
16.3 C
-0.68 C
1984
16.8 C
-0.13 C
1985
16.9 C
-0.03 C
1986
17.2 C
+0.23 C
1987
16.3 C
-0.64 C
1988
17.0 C
+0.01 C
1989
17.6 C
+0.66 C
1990
17.2 C
+0.18 C
1991
16.5 C
-0.51 C
1992
15.8 C
-1.17 C
2002
18.8 C
+1.83 C
2003
19.3 C
+2.35 C
2013
17.9 C
+0.96 C
2014
19.3 C
+2.35 C
2015
19.0 C
+2.01 C
The annual mean temperature here has risen by 0.5 C (0.3 to 0.7) per decade over 1965 to 2015. In Fahrenheit: 0.9 F (0.6 to 1.2) per decade. The slope is a straight line fitted to 33 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Douglas
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.5 C (0.3 to 0.7) per decade
0.9 F (0.6 to 1.2) per decade
1965 to 2015
33
Rise
Mean daily maximum
0.4 C (0.2 to 0.6) per decade
0.7 F (0.4 to 1.0) per decade
1965 to 2015
33
Rise
Mean daily minimum
0.6 C (0.4 to 0.9) per decade
1.2 F (0.8 to 1.6) per decade
1965 to 2015
33
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
1948 to 2022
Yearly extremes at Douglas: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.9 C (111.0 F)
2016
40.0 C (104.0 F)
52
Coldest night (TNn)
-16.7 C (1.9 F)
1978
-9.4 C (15.1 F)
52
Wettest day (Rx1day)
114.8 mm (4.5 in)
1988
38.6 mm (1.5 in)
57
Wettest five days (Rx5day)
134.6 mm (5.3 in)
1977
60.8 mm (2.4 in)
57
Longest dry spell (CDD)
171 days
1974
55 days
57
Hottest day (TXx)
The hottest day of the year at Douglas, 1948 to 2022. The record is 43.9 C (111.0 F) in 2016, marked on the chart; the median year is 40.0 C (104.0 F).
Hottest day (TXx) at Douglas by year
Year
Hottest day (TXx)
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1964
24.4 C (75.9 F)
1965
38.9 C (102.0 F)
1966
39.4 C (102.9 F)
1967
38.9 C (102.0 F)
1968
40.0 C (104.0 F)
1969
40.6 C (105.1 F)
1970
41.7 C (107.1 F)
1971
40.0 C (104.0 F)
1972
38.9 C (102.0 F)
1973
42.2 C (108.0 F)
1974
41.1 C (106.0 F)
1975
41.1 C (106.0 F)
1976
40.0 C (104.0 F)
1977
40.6 C (105.1 F)
1978
40.0 C (104.0 F)
1979
41.1 C (106.0 F)
1980
41.7 C (107.1 F)
1981
40.0 C (104.0 F)
1982
38.9 C (102.0 F)
1983
38.3 C (100.9 F)
1984
38.9 C (102.0 F)
1985
42.2 C (108.0 F)
1986
40.0 C (104.0 F)
1987
39.4 C (102.9 F)
1988
38.3 C (100.9 F)
1989
41.7 C (107.1 F)
1990
42.8 C (109.0 F)
1991
39.4 C (102.9 F)
1992
40.6 C (105.1 F)
1993
41.1 C (106.0 F)
1994
25.6 C (78.1 F)
2001
30.6 C (87.1 F)
2002
41.1 C (106.0 F)
2003
41.7 C (107.1 F)
2004
38.9 C (102.0 F)
2005
41.7 C (107.1 F)
2006
40.0 C (104.0 F)
2007
41.1 C (106.0 F)
2008
40.0 C (104.0 F)
2009
39.4 C (102.9 F)
2010
40.0 C (104.0 F)
2011
42.2 C (108.0 F)
2012
40.6 C (105.1 F)
2013
41.1 C (106.0 F)
2014
41.1 C (106.0 F)
2015
41.1 C (106.0 F)
2016
43.9 C (111.0 F)
2017
42.2 C (108.0 F)
2018
40.0 C (104.0 F)
2019
38.9 C (102.0 F)
2020
41.1 C (106.0 F)
2021
36.1 C (97.0 F)
2022
n/a
Coldest night (TNn)
The coldest night of the year at Douglas, 1948 to 2022. The record is -16.7 C (1.9 F) in 1978, marked on the chart; the median year is -9.4 C (15.1 F).
Coldest night (TNn) at Douglas by year
Year
Coldest night (TNn)
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1964
-11.7 C (10.9 F)
1965
-9.4 C (15.1 F)
1966
-10.6 C (12.9 F)
1967
-11.7 C (10.9 F)
1968
-14.4 C (6.1 F)
1969
-10.0 C (14.0 F)
1970
-11.7 C (10.9 F)
1971
-13.9 C (7.0 F)
1972
-11.1 C (12.0 F)
1973
-11.7 C (10.9 F)
1974
-13.3 C (8.1 F)
1975
-11.7 C (10.9 F)
1976
-11.7 C (10.9 F)
1977
-9.4 C (15.1 F)
1978
-16.7 C (1.9 F)
1979
-10.6 C (12.9 F)
1980
-8.3 C (17.1 F)
1981
-8.3 C (17.1 F)
1982
-6.7 C (19.9 F)
1983
-6.7 C (19.9 F)
1984
-7.2 C (19.0 F)
1985
-11.7 C (10.9 F)
1986
-6.7 C (19.9 F)
1987
-10.6 C (12.9 F)
1988
-11.7 C (10.9 F)
1989
-10.6 C (12.9 F)
1990
-10.6 C (12.9 F)
1991
-9.4 C (15.1 F)
1992
-12.8 C (9.0 F)
1993
-7.8 C (18.0 F)
1994
-8.9 C (16.0 F)
2001
-6.7 C (19.9 F)
2002
-6.7 C (19.9 F)
2003
-9.4 C (15.1 F)
2004
-7.2 C (19.0 F)
2005
-5.6 C (21.9 F)
2006
-6.1 C (21.0 F)
2007
-9.4 C (15.1 F)
2008
-8.9 C (16.0 F)
2009
-5.6 C (21.9 F)
2010
-8.3 C (17.1 F)
2011
-14.4 C (6.1 F)
2012
-10.6 C (12.9 F)
2013
-10.6 C (12.9 F)
2014
-6.7 C (19.9 F)
2015
-7.8 C (18.0 F)
2016
-6.7 C (19.9 F)
2017
-6.1 C (21.0 F)
2018
-6.1 C (21.0 F)
2019
-8.9 C (16.0 F)
2020
-5.0 C (23.0 F)
2021
3.9 C (39.0 F)
2022
n/a
Wettest day (Rx1day)
The wettest day of the year at Douglas, 1948 to 2022. The record is 114.8 mm (4.5 in) in 1988, marked on the chart; the median year is 38.6 mm (1.5 in).
Wettest day (Rx1day) at Douglas by year
Year
Wettest day (Rx1day)
1948
69.1 mm (2.7 in)
1949
54.1 mm (2.1 in)
1950
51.1 mm (2.0 in)
1951
23.6 mm (0.9 in)
1964
1.8 mm (0.07 in)
1965
33.0 mm (1.3 in)
1966
58.4 mm (2.3 in)
1967
49.5 mm (1.9 in)
1968
29.5 mm (1.2 in)
1969
28.2 mm (1.1 in)
1970
36.1 mm (1.4 in)
1971
40.1 mm (1.6 in)
1972
40.6 mm (1.6 in)
1973
54.4 mm (2.1 in)
1974
25.9 mm (1.0 in)
1975
27.9 mm (1.1 in)
1976
38.9 mm (1.5 in)
1977
67.3 mm (2.6 in)
1978
29.0 mm (1.1 in)
1979
35.6 mm (1.4 in)
1980
25.4 mm (1.0 in)
1981
49.0 mm (1.9 in)
1982
29.2 mm (1.1 in)
1983
41.1 mm (1.6 in)
1984
46.0 mm (1.8 in)
1985
40.4 mm (1.6 in)
1986
67.3 mm (2.6 in)
1987
42.9 mm (1.7 in)
1988
114.8 mm (4.5 in)
1989
41.9 mm (1.6 in)
1990
52.1 mm (2.1 in)
1991
74.9 mm (2.9 in)
1992
34.0 mm (1.3 in)
1993
27.9 mm (1.1 in)
1994
13.0 mm (0.5 in)
2001
10.2 mm (0.4 in)
2002
43.2 mm (1.7 in)
2003
22.4 mm (0.9 in)
2004
9.7 mm (0.38 in)
2005
36.8 mm (1.4 in)
2006
21.8 mm (0.9 in)
2007
47.5 mm (1.9 in)
2008
17.8 mm (0.7 in)
2009
14.0 mm (0.6 in)
2010
38.6 mm (1.5 in)
2011
15.2 mm (0.6 in)
2012
23.4 mm (0.9 in)
2013
58.4 mm (2.3 in)
2014
71.1 mm (2.8 in)
2015
31.0 mm (1.2 in)
2016
40.9 mm (1.6 in)
2017
25.4 mm (1.0 in)
2018
27.7 mm (1.1 in)
2019
101.6 mm (4.0 in)
2020
55.9 mm (2.2 in)
2021
45.2 mm (1.8 in)
2022
0.0 mm (0.00 in)
Wettest five days (Rx5day)
The wettest five days of the year at Douglas, 1948 to 2022. The record is 134.6 mm (5.3 in) in 1977, marked on the chart; the median year is 60.8 mm (2.4 in).
Wettest five days (Rx5day) at Douglas by year
Year
Wettest five days (Rx5day)
1948
73.2 mm (2.9 in)
1949
81.0 mm (3.2 in)
1950
115.6 mm (4.6 in)
1951
44.4 mm (1.7 in)
1964
1.8 mm (0.07 in)
1965
59.4 mm (2.3 in)
1966
82.6 mm (3.3 in)
1967
95.0 mm (3.7 in)
1968
46.0 mm (1.8 in)
1969
60.9 mm (2.4 in)
1970
75.6 mm (3.0 in)
1971
82.0 mm (3.2 in)
1972
89.1 mm (3.5 in)
1973
60.8 mm (2.4 in)
1974
71.1 mm (2.8 in)
1975
46.4 mm (1.8 in)
1976
46.4 mm (1.8 in)
1977
134.6 mm (5.3 in)
1978
60.8 mm (2.4 in)
1979
70.3 mm (2.8 in)
1980
36.6 mm (1.4 in)
1981
56.7 mm (2.2 in)
1982
38.8 mm (1.5 in)
1983
94.2 mm (3.7 in)
1984
92.8 mm (3.7 in)
1985
55.9 mm (2.2 in)
1986
85.7 mm (3.4 in)
1987
65.2 mm (2.6 in)
1988
125.4 mm (4.9 in)
1989
65.3 mm (2.6 in)
1990
112.1 mm (4.4 in)
1991
75.2 mm (3.0 in)
1992
85.8 mm (3.4 in)
1993
61.3 mm (2.4 in)
1994
16.3 mm (0.6 in)
2001
12.7 mm (0.5 in)
2002
79.5 mm (3.1 in)
2003
38.4 mm (1.5 in)
2004
14.5 mm (0.6 in)
2005
70.4 mm (2.8 in)
2006
32.5 mm (1.3 in)
2007
53.1 mm (2.1 in)
2008
17.8 mm (0.7 in)
2009
14.8 mm (0.6 in)
2010
22.9 mm (0.9 in)
2011
22.4 mm (0.9 in)
2012
23.4 mm (0.9 in)
2013
71.2 mm (2.8 in)
2014
52.0 mm (2.0 in)
2015
37.1 mm (1.5 in)
2016
62.3 mm (2.5 in)
2017
46.2 mm (1.8 in)
2018
42.0 mm (1.7 in)
2019
91.7 mm (3.6 in)
2020
55.9 mm (2.2 in)
2021
66.7 mm (2.6 in)
2022
0.0 mm (0.00 in)
Longest dry spell (CDD)
The longest dry spell of the year at Douglas, 1948 to 2022. The record is 171 days in 1974, marked on the chart; the median year is 55 days.
Longest dry spell (CDD) at Douglas by year
Year
Longest dry spell (CDD)
1948
43 days
1949
122 days
1950
111 days
1951
37 days
1964
17 days
1965
81 days
1966
65 days
1967
55 days
1968
80 days
1969
62 days
1970
84 days
1971
63 days
1972
148 days
1973
47 days
1974
171 days
1975
82 days
1976
42 days
1977
58 days
1978
50 days
1979
81 days
1980
59 days
1981
54 days
1982
57 days
1983
76 days
1984
89 days
1985
41 days
1986
33 days
1987
41 days
1988
49 days
1989
62 days
1990
45 days
1991
65 days
1992
43 days
1993
49 days
1994
27 days
2001
35 days
2002
161 days
2003
117 days
2004
80 days
2005
88 days
2006
88 days
2007
43 days
2008
80 days
2009
37 days
2010
78 days
2011
76 days
2012
44 days
2013
109 days
2014
18 days
2015
23 days
2016
10 days
2017
45 days
2018
20 days
2019
10 days
2020
9 days
2021
4 days
2022
31 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
33 years with a frost
Across 33 years with a frost, the median last spring frost at Douglas falls on 11 April and the median first autumn frost on 30 October, which leaves a median of 203 days between them.
Fitted over all years, the growing season changes by +16.4 days per decade at this station.
Frost dates and growing season at Douglas
Measure
Median, all years
Earliest period
Recent period (1968 to 2015)
Recent against earliest
Fitted trend
Last spring frost
11 April
n/a
11 April
n/a
-11.0 days per decade
First autumn frost
30 October
n/a
30 October
n/a
+5.5 days per decade
Growing days
203 days
n/a
203 days
n/a
+16.4 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
34 years, 1949 to 2015
A day with at least 39.1 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 112.1 mm (4.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Douglas: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
39.1 mm (1.5 in)
5 years
54.0 mm (2.1 in)
10 years
65.5 mm (2.6 in)
25 years
82.2 mm (3.2 in)
50 years
96.3 mm (3.8 in)
Longer than the 34 years of record
100 years
112.1 mm (4.4 in)
Longer than the 34 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, 34 years of values from 1949 to 2015.
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: 114.8 mm (4.5 in) in 1988; 74.9 mm (2.9 in) in 1991; 67.3 mm (2.6 in) in 1977.
Download the Data
Data for Douglas standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Douglas 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.