Record envelope, standing records and threshold days for Dumas (USC00412617), Texas, United States, with 86 years of record.
Key Facts for Dumas
Dumas (USC00412617) is a weather station in Texas, United States at 35.87 latitude and -101.97 longitude, 1,114 m (3,655 ft) above sea level.
The station reports from 1937 to 2022, 86 years of record.
1,464 records set at Dumas still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Dumas set a daily record low maximum temperature of -5.0 C (23.0 F) on 19 November 2022.
About the Station
Location: Texas, United States, 35.87 latitude, -101.97 longitude.
Elevation: 1,114 m (3,655 ft).
Period of record: 1937 to 2022, 86 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 Dumas. 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 Dumas, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
26.1 C (79.0 F)
-27.8 C (-18.0 F)
n/a
n/a
Feb
30.0 C (86.0 F)
-25.6 C (-14.1 F)
n/a
n/a
Mar
33.3 C (91.9 F)
-18.9 C (-2.0 F)
n/a
n/a
Apr
37.2 C (99.0 F)
-10.6 C (12.9 F)
n/a
n/a
May
38.9 C (102.0 F)
-8.9 C (16.0 F)
n/a
n/a
Jun
42.8 C (109.0 F)
5.0 C (41.0 F)
n/a
n/a
Jul
42.8 C (109.0 F)
1.7 C (35.1 F)
n/a
n/a
Aug
42.2 C (108.0 F)
5.6 C (42.1 F)
n/a
n/a
Sep
40.6 C (105.1 F)
-2.8 C (27.0 F)
n/a
n/a
Oct
35.6 C (96.1 F)
-12.8 C (9.0 F)
n/a
n/a
Nov
30.6 C (87.1 F)
-18.9 C (-2.0 F)
n/a
n/a
Dec
26.1 C (79.0 F)
-22.8 C (-9.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Dumas still stand. 2013 holds the most, with 41.
Standing records at Dumas by the year they were set
Year set
Standing records
1939
18
1940
18
1941
3
1942
10
1943
25
1944
24
1945
27
1946
19
1947
7
1948
21
1949
10
1950
15
1951
5
1952
19
1953
7
1955
7
1956
21
1957
10
1958
10
1959
31
1960
16
1961
16
1962
28
1963
27
1964
22
1965
19
1966
15
1967
21
1968
11
1969
14
1970
18
1971
23
1972
25
1973
13
1974
17
1975
12
1976
10
1977
6
1978
26
1979
22
1980
29
1981
27
1982
11
1983
30
1984
13
1985
21
1986
20
1987
19
1988
9
1989
33
1990
18
1991
15
1992
19
1993
11
1994
13
1995
27
1996
18
1997
18
1998
11
1999
6
2000
21
2001
14
2002
15
2003
15
2004
9
2005
11
2006
18
2007
12
2008
11
2009
22
2010
14
2011
31
2012
16
2013
41
2014
16
2015
15
2016
25
2017
3
2018
18
2019
11
2020
31
2021
32
2022
27
All-Time Record Progression
5 new records
5 all-time records were set at Dumas between 1 July 1971 and 10 August 2002. Each dot is a new record.
When Dumas set new all-time records
Date
Kind
Detail
1971-07-01
Record daily precipitation
Record daily precipitation 101.1 mm (4.0 in)
1978-07-18
Record high minimum temperature
Record high minimum temperature 25.0 C (77.0 F)
1988-05-31
Record daily precipitation
Record daily precipitation 104.1 mm (4.1 in)
2000-12-27
Record daily snowfall
Record daily snowfall 31.8 cm (12.5 in)
2002-08-10
Record daily precipitation
Record daily precipitation 105.2 mm (4.1 in)
Wettest Day of Each Month
Aug: 105.2 mm (4.1 in)
The wettest day on record for each calendar month at Dumas. The most was 105.2 mm (4.1 in) on 10 August 2002.
Record daily precipitation for each month at Dumas
Month
Record daily precipitation (mm)
Date
Jan
40.4 mm (1.6 in)
8 January 1939
Feb
35.6 mm (1.4 in)
27 February 1948
Mar
63.5 mm (2.5 in)
26 March 2007
Apr
102.9 mm (4.1 in)
14 April 1999
May
104.1 mm (4.1 in)
31 May 1988
Jun
95.5 mm (3.8 in)
14 June 1954
Jul
101.1 mm (4.0 in)
1 July 1971
Aug
105.2 mm (4.1 in)
10 August 2002
Sep
66.3 mm (2.6 in)
9 September 1960
Oct
89.9 mm (3.5 in)
22 October 2015
Nov
39.9 mm (1.6 in)
16 November 2001
Dec
76.2 mm (3.0 in)
23 December 2003
Period of Record Coverage
1939 to 2022
Complete yearUnder 90 percent of days
84 years of record at Dumas, 1939 to 2022. 25 years have data for under 90 percent of days and are left out of rankings: 1939, 1940, 1941, 1942, 1944, 1947, 1948, 1949 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 48 complete years at Dumas, 1943 to 2020. Blue stripes are years cooler than the station's own mean of 13.4 C (56.1 F); red stripes are warmer. The coolest year was 1961, at 12.4 C (54.4 F), and the warmest was 2020, at 14.9 C (58.8 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Dumas as warming stripes, 1943 to 2020
Year
Annual mean temperature
Difference from the station mean
1943
14.2 C
+0.74 C
1945
14.1 C
+0.64 C
1946
14.4 C
+0.96 C
1958
12.9 C
-0.48 C
1959
12.7 C
-0.67 C
1960
12.7 C
-0.72 C
1961
12.4 C
-0.99 C
1962
13.7 C
+0.30 C
1963
14.3 C
+0.85 C
1964
13.3 C
-0.15 C
1965
13.5 C
+0.06 C
1966
13.0 C
-0.45 C
1967
13.3 C
-0.07 C
1968
12.9 C
-0.54 C
1969
13.1 C
-0.32 C
1970
13.3 C
-0.13 C
1971
13.3 C
-0.16 C
1972
13.2 C
-0.21 C
1973
12.9 C
-0.48 C
1974
13.6 C
+0.23 C
1975
13.0 C
-0.37 C
1976
13.2 C
-0.19 C
1977
14.4 C
+0.94 C
1979
12.9 C
-0.49 C
1980
14.1 C
+0.66 C
1981
14.8 C
+1.35 C
1982
13.1 C
-0.29 C
1983
12.5 C
-0.93 C
1984
13.0 C
-0.43 C
1985
13.1 C
-0.30 C
1986
14.1 C
+0.71 C
1987
13.1 C
-0.29 C
1988
12.7 C
-0.69 C
1989
12.8 C
-0.65 C
1990
13.3 C
-0.14 C
1991
13.2 C
-0.17 C
1992
13.0 C
-0.38 C
1994
13.7 C
+0.27 C
1995
13.3 C
-0.09 C
1996
13.2 C
-0.21 C
1998
14.3 C
+0.86 C
2007
13.2 C
-0.25 C
2008
13.2 C
-0.24 C
2013
12.6 C
-0.82 C
2015
14.1 C
+0.69 C
2016
14.5 C
+1.12 C
2018
13.8 C
+0.34 C
2020
14.9 C
+1.49 C
The fitted trend in annual mean temperature here over 1943 to 2020 is 0.04 C (-0.05 to 0.14) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.2) per decade. The slope is a straight line fitted to 48 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Dumas
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.04 C (-0.05 to 0.14) per decade
0.1 F (-0.1 to 0.2) per decade
1943 to 2020
48
Not clearly different from zero
Mean daily maximum
0.01 C (-0.10 to 0.13) per decade
0.03 F (-0.19 to 0.24) per decade
1943 to 2020
48
Not clearly different from zero
Mean daily minimum
0.07 C (-0.04 to 0.17) per decade
0.1 F (-0.1 to 0.3) per decade
1943 to 2020
48
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
1937 to 2022
Yearly extremes at Dumas: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
42.8 C (109.0 F)
1940
39.4 C (102.9 F)
84
Coldest night (TNn)
-27.8 C (-18.0 F)
1959
-17.8 C (0.0 F)
84
Wettest day (Rx1day)
105.2 mm (4.1 in)
2002
52.8 mm (2.1 in)
86
Wettest five days (Rx5day)
165.3 mm (6.5 in)
1958
76.3 mm (3.0 in)
86
Longest dry spell (CDD)
110 days
2018
43 days
86
Hottest day (TXx)
The hottest day of the year at Dumas, 1937 to 2022. The record is 42.8 C (109.0 F) in 1940, marked on the chart; the median year is 39.4 C (102.9 F).
Hottest day (TXx) at Dumas by year
Year
Hottest day (TXx)
1937
n/a
1938
n/a
1939
41.1 C (106.0 F)
1940
42.8 C (109.0 F)
1941
37.2 C (99.0 F)
1942
37.8 C (100.0 F)
1943
41.1 C (106.0 F)
1944
42.2 C (108.0 F)
1945
40.0 C (104.0 F)
1946
40.0 C (104.0 F)
1947
38.9 C (102.0 F)
1948
40.6 C (105.1 F)
1949
36.7 C (98.1 F)
1950
38.3 C (100.9 F)
1951
23.9 C (75.0 F)
1952
40.6 C (105.1 F)
1953
39.4 C (102.9 F)
1954
35.6 C (96.1 F)
1955
38.9 C (102.0 F)
1956
39.4 C (102.9 F)
1957
32.8 C (91.0 F)
1958
38.3 C (100.9 F)
1959
40.6 C (105.1 F)
1960
40.6 C (105.1 F)
1961
37.2 C (99.0 F)
1962
37.8 C (100.0 F)
1963
38.9 C (102.0 F)
1964
41.1 C (106.0 F)
1965
37.2 C (99.0 F)
1966
40.0 C (104.0 F)
1967
38.3 C (100.9 F)
1968
41.1 C (106.0 F)
1969
40.0 C (104.0 F)
1970
39.4 C (102.9 F)
1971
38.9 C (102.0 F)
1972
37.8 C (100.0 F)
1973
40.0 C (104.0 F)
1974
40.0 C (104.0 F)
1975
38.3 C (100.9 F)
1976
38.3 C (100.9 F)
1977
40.0 C (104.0 F)
1978
42.2 C (108.0 F)
1979
38.3 C (100.9 F)
1980
42.8 C (109.0 F)
1981
42.2 C (108.0 F)
1982
38.9 C (102.0 F)
1983
40.6 C (105.1 F)
1984
38.9 C (102.0 F)
1985
38.9 C (102.0 F)
1986
40.0 C (104.0 F)
1987
38.9 C (102.0 F)
1988
38.9 C (102.0 F)
1989
38.9 C (102.0 F)
1990
40.6 C (105.1 F)
1991
36.7 C (98.1 F)
1992
38.9 C (102.0 F)
1993
38.9 C (102.0 F)
1994
40.6 C (105.1 F)
1995
39.4 C (102.9 F)
1996
40.6 C (105.1 F)
1997
38.9 C (102.0 F)
1998
40.6 C (105.1 F)
1999
38.3 C (100.9 F)
2000
38.3 C (100.9 F)
2001
38.9 C (102.0 F)
2002
38.3 C (100.9 F)
2003
40.0 C (104.0 F)
2004
38.3 C (100.9 F)
2005
39.4 C (102.9 F)
2006
38.9 C (102.0 F)
2007
38.3 C (100.9 F)
2008
39.4 C (102.9 F)
2009
39.4 C (102.9 F)
2010
38.3 C (100.9 F)
2011
42.2 C (108.0 F)
2012
40.6 C (105.1 F)
2013
41.7 C (107.1 F)
2014
39.4 C (102.9 F)
2015
38.3 C (100.9 F)
2016
41.1 C (106.0 F)
2017
29.4 C (84.9 F)
2018
41.7 C (107.1 F)
2019
39.4 C (102.9 F)
2020
41.1 C (106.0 F)
2021
40.0 C (104.0 F)
2022
42.2 C (108.0 F)
Coldest night (TNn)
The coldest night of the year at Dumas, 1937 to 2022. The record is -27.8 C (-18.0 F) in 1959, marked on the chart; the median year is -17.8 C (0.0 F).
Coldest night (TNn) at Dumas by year
Year
Coldest night (TNn)
1937
n/a
1938
n/a
1939
-18.3 C (-0.9 F)
1940
-20.0 C (-4.0 F)
1941
-16.7 C (1.9 F)
1942
-20.6 C (-5.1 F)
1943
-22.2 C (-8.0 F)
1944
-13.9 C (7.0 F)
1945
-15.6 C (3.9 F)
1946
-16.1 C (3.0 F)
1947
-17.8 C (0.0 F)
1948
-18.9 C (-2.0 F)
1949
-18.3 C (-0.9 F)
1950
-20.0 C (-4.0 F)
1951
-18.9 C (-2.0 F)
1952
-10.6 C (12.9 F)
1953
-15.6 C (3.9 F)
1954
-1.7 C (28.9 F)
1955
-13.9 C (7.0 F)
1956
-13.9 C (7.0 F)
1957
-16.1 C (3.0 F)
1958
-14.4 C (6.1 F)
1959
-27.8 C (-18.0 F)
1960
-19.4 C (-2.9 F)
1961
-21.1 C (-6.0 F)
1962
-21.1 C (-6.0 F)
1963
-23.9 C (-11.0 F)
1964
-18.9 C (-2.0 F)
1965
-16.7 C (1.9 F)
1966
-21.1 C (-6.0 F)
1967
-15.0 C (5.0 F)
1968
-17.2 C (1.0 F)
1969
-16.1 C (3.0 F)
1970
-16.1 C (3.0 F)
1971
-23.9 C (-11.0 F)
1972
-18.9 C (-2.0 F)
1973
-17.8 C (0.0 F)
1974
-16.7 C (1.9 F)
1975
-16.1 C (3.0 F)
1976
-18.9 C (-2.0 F)
1977
-18.3 C (-0.9 F)
1978
-19.4 C (-2.9 F)
1979
-21.1 C (-6.0 F)
1980
-15.6 C (3.9 F)
1981
-21.1 C (-6.0 F)
1982
-21.1 C (-6.0 F)
1983
-21.7 C (-7.1 F)
1984
-20.6 C (-5.1 F)
1985
-18.3 C (-0.9 F)
1986
-22.8 C (-9.0 F)
1987
-20.6 C (-5.1 F)
1988
-23.3 C (-9.9 F)
1989
-22.8 C (-9.0 F)
1990
-21.1 C (-6.0 F)
1991
-14.4 C (6.1 F)
1992
-13.9 C (7.0 F)
1993
-16.1 C (3.0 F)
1994
-17.2 C (1.0 F)
1995
-13.9 C (7.0 F)
1996
-19.4 C (-2.9 F)
1997
-17.8 C (0.0 F)
1998
-19.4 C (-2.9 F)
1999
-11.7 C (10.9 F)
2000
-13.9 C (7.0 F)
2001
-11.7 C (10.9 F)
2002
-16.7 C (1.9 F)
2003
-16.7 C (1.9 F)
2004
-18.3 C (-0.9 F)
2005
-19.4 C (-2.9 F)
2006
-16.7 C (1.9 F)
2007
-16.1 C (3.0 F)
2008
-16.1 C (3.0 F)
2009
-15.0 C (5.0 F)
2010
-13.3 C (8.1 F)
2011
-18.9 C (-2.0 F)
2012
-15.0 C (5.0 F)
2013
-15.6 C (3.9 F)
2014
-17.8 C (0.0 F)
2015
-16.1 C (3.0 F)
2016
-20.0 C (-4.0 F)
2017
-14.4 C (6.1 F)
2018
-17.2 C (1.0 F)
2019
-14.4 C (6.1 F)
2020
-11.7 C (10.9 F)
2021
-25.6 C (-14.1 F)
2022
-20.6 C (-5.1 F)
Wettest day (Rx1day)
The wettest day of the year at Dumas, 1937 to 2022. The record is 105.2 mm (4.1 in) in 2002, marked on the chart; the median year is 52.8 mm (2.1 in).
Wettest day (Rx1day) at Dumas by year
Year
Wettest day (Rx1day)
1937
41.1 mm (1.6 in)
1938
76.2 mm (3.0 in)
1939
57.2 mm (2.3 in)
1940
22.1 mm (0.9 in)
1941
73.2 mm (2.9 in)
1942
90.2 mm (3.6 in)
1943
78.2 mm (3.1 in)
1944
48.8 mm (1.9 in)
1945
77.7 mm (3.1 in)
1946
64.0 mm (2.5 in)
1947
26.4 mm (1.0 in)
1948
47.0 mm (1.9 in)
1949
77.7 mm (3.1 in)
1950
53.3 mm (2.1 in)
1951
10.4 mm (0.4 in)
1952
34.3 mm (1.4 in)
1953
27.7 mm (1.1 in)
1954
95.5 mm (3.8 in)
1955
44.5 mm (1.8 in)
1956
39.1 mm (1.5 in)
1957
38.1 mm (1.5 in)
1958
75.4 mm (3.0 in)
1959
54.6 mm (2.1 in)
1960
66.3 mm (2.6 in)
1961
73.4 mm (2.9 in)
1962
79.0 mm (3.1 in)
1963
51.8 mm (2.0 in)
1964
37.6 mm (1.5 in)
1965
63.5 mm (2.5 in)
1966
18.3 mm (0.7 in)
1967
54.9 mm (2.2 in)
1968
79.0 mm (3.1 in)
1969
45.7 mm (1.8 in)
1970
37.6 mm (1.5 in)
1971
101.1 mm (4.0 in)
1972
73.7 mm (2.9 in)
1973
36.8 mm (1.4 in)
1974
38.6 mm (1.5 in)
1975
75.4 mm (3.0 in)
1976
29.0 mm (1.1 in)
1977
29.7 mm (1.2 in)
1978
46.0 mm (1.8 in)
1979
67.1 mm (2.6 in)
1980
69.6 mm (2.7 in)
1981
56.9 mm (2.2 in)
1982
49.8 mm (2.0 in)
1983
23.6 mm (0.9 in)
1984
29.2 mm (1.1 in)
1985
60.5 mm (2.4 in)
1986
37.6 mm (1.5 in)
1987
57.7 mm (2.3 in)
1988
104.1 mm (4.1 in)
1989
33.5 mm (1.3 in)
1990
57.7 mm (2.3 in)
1991
69.1 mm (2.7 in)
1992
82.6 mm (3.3 in)
1993
51.1 mm (2.0 in)
1994
50.5 mm (2.0 in)
1995
52.3 mm (2.1 in)
1996
58.4 mm (2.3 in)
1997
68.6 mm (2.7 in)
1998
43.9 mm (1.7 in)
1999
102.9 mm (4.1 in)
2000
58.4 mm (2.3 in)
2001
39.9 mm (1.6 in)
2002
105.2 mm (4.1 in)
2003
76.2 mm (3.0 in)
2004
29.2 mm (1.1 in)
2005
35.6 mm (1.4 in)
2006
40.6 mm (1.6 in)
2007
63.5 mm (2.5 in)
2008
54.1 mm (2.1 in)
2009
25.1 mm (1.0 in)
2010
58.9 mm (2.3 in)
2011
45.0 mm (1.8 in)
2012
33.3 mm (1.3 in)
2013
95.0 mm (3.7 in)
2014
39.6 mm (1.6 in)
2015
89.9 mm (3.5 in)
2016
30.5 mm (1.2 in)
2017
0.0 mm (0.00 in)
2018
54.6 mm (2.1 in)
2019
49.3 mm (1.9 in)
2020
68.3 mm (2.7 in)
2021
30.5 mm (1.2 in)
2022
40.6 mm (1.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Dumas, 1937 to 2022. The record is 165.3 mm (6.5 in) in 1958, marked on the chart; the median year is 76.3 mm (3.0 in).
Wettest five days (Rx5day) at Dumas by year
Year
Wettest five days (Rx5day)
1937
56.7 mm (2.2 in)
1938
76.2 mm (3.0 in)
1939
61.8 mm (2.4 in)
1940
27.2 mm (1.1 in)
1941
104.9 mm (4.1 in)
1942
158.0 mm (6.2 in)
1943
87.1 mm (3.4 in)
1944
65.6 mm (2.6 in)
1945
79.0 mm (3.1 in)
1946
90.9 mm (3.6 in)
1947
61.5 mm (2.4 in)
1948
69.1 mm (2.7 in)
1949
103.4 mm (4.1 in)
1950
78.7 mm (3.1 in)
1951
10.4 mm (0.4 in)
1952
69.3 mm (2.7 in)
1953
56.9 mm (2.2 in)
1954
95.5 mm (3.8 in)
1955
70.6 mm (2.8 in)
1956
54.8 mm (2.2 in)
1957
62.2 mm (2.4 in)
1958
165.3 mm (6.5 in)
1959
78.7 mm (3.1 in)
1960
106.0 mm (4.2 in)
1961
116.3 mm (4.6 in)
1962
86.1 mm (3.4 in)
1963
80.4 mm (3.2 in)
1964
55.1 mm (2.2 in)
1965
116.1 mm (4.6 in)
1966
32.4 mm (1.3 in)
1967
86.7 mm (3.4 in)
1968
79.0 mm (3.1 in)
1969
81.5 mm (3.2 in)
1970
37.6 mm (1.5 in)
1971
143.3 mm (5.6 in)
1972
107.0 mm (4.2 in)
1973
48.3 mm (1.9 in)
1974
79.0 mm (3.1 in)
1975
76.4 mm (3.0 in)
1976
62.5 mm (2.5 in)
1977
45.7 mm (1.8 in)
1978
70.8 mm (2.8 in)
1979
86.4 mm (3.4 in)
1980
104.6 mm (4.1 in)
1981
71.9 mm (2.8 in)
1982
79.6 mm (3.1 in)
1983
37.6 mm (1.5 in)
1984
34.3 mm (1.4 in)
1985
81.8 mm (3.2 in)
1986
49.5 mm (1.9 in)
1987
92.8 mm (3.7 in)
1988
150.6 mm (5.9 in)
1989
85.1 mm (3.4 in)
1990
66.6 mm (2.6 in)
1991
92.2 mm (3.6 in)
1992
98.1 mm (3.9 in)
1993
83.9 mm (3.3 in)
1994
59.9 mm (2.4 in)
1995
65.2 mm (2.6 in)
1996
104.2 mm (4.1 in)
1997
109.8 mm (4.3 in)
1998
71.0 mm (2.8 in)
1999
111.8 mm (4.4 in)
2000
122.5 mm (4.8 in)
2001
60.5 mm (2.4 in)
2002
105.2 mm (4.1 in)
2003
76.2 mm (3.0 in)
2004
64.0 mm (2.5 in)
2005
40.4 mm (1.6 in)
2006
56.2 mm (2.2 in)
2007
79.8 mm (3.1 in)
2008
142.9 mm (5.6 in)
2009
41.7 mm (1.6 in)
2010
64.7 mm (2.5 in)
2011
45.0 mm (1.8 in)
2012
52.8 mm (2.1 in)
2013
154.4 mm (6.1 in)
2014
71.6 mm (2.8 in)
2015
115.6 mm (4.6 in)
2016
43.5 mm (1.7 in)
2017
0.0 mm (0.00 in)
2018
54.6 mm (2.1 in)
2019
108.5 mm (4.3 in)
2020
81.0 mm (3.2 in)
2021
49.0 mm (1.9 in)
2022
60.5 mm (2.4 in)
Longest dry spell (CDD)
The longest dry spell of the year at Dumas, 1937 to 2022. The record is 110 days in 2018, marked on the chart; the median year is 43 days.
Longest dry spell (CDD) at Dumas by year
Year
Longest dry spell (CDD)
1937
42 days
1938
37 days
1939
50 days
1940
35 days
1941
21 days
1942
58 days
1943
60 days
1944
30 days
1945
69 days
1946
44 days
1947
54 days
1948
41 days
1949
29 days
1950
75 days
1951
15 days
1952
39 days
1953
50 days
1954
16 days
1955
22 days
1956
72 days
1957
39 days
1958
42 days
1959
38 days
1960
24 days
1961
27 days
1962
29 days
1963
41 days
1964
58 days
1965
53 days
1966
70 days
1967
47 days
1968
33 days
1969
43 days
1970
47 days
1971
33 days
1972
74 days
1973
39 days
1974
45 days
1975
39 days
1976
63 days
1977
37 days
1978
42 days
1979
43 days
1980
28 days
1981
52 days
1982
49 days
1983
27 days
1984
24 days
1985
32 days
1986
37 days
1987
23 days
1988
54 days
1989
56 days
1990
42 days
1991
77 days
1992
47 days
1993
26 days
1994
35 days
1995
76 days
1996
56 days
1997
34 days
1998
64 days
1999
57 days
2000
47 days
2001
46 days
2002
30 days
2003
77 days
2004
32 days
2005
39 days
2006
51 days
2007
60 days
2008
37 days
2009
46 days
2010
27 days
2011
52 days
2012
74 days
2013
72 days
2014
34 days
2015
21 days
2016
54 days
2017
59 days
2018
110 days
2019
54 days
2020
45 days
2021
28 days
2022
40 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
48 years with a frost
Across 48 years with a frost, the median last spring frost at Dumas falls on 19 April and the median first autumn frost on 22 October, which leaves a median of 186 days between them.
Fitted over all years, the growing season changes by -0.1 days per decade at this station.
Frost dates and growing season at Dumas
Measure
Median, all years
Earliest period
Recent period (1973 to 2020)
Recent against earliest
Fitted trend
Last spring frost
19 April
n/a
17 April
n/a
+0.6 days per decade
First autumn frost
22 October
n/a
22 October
n/a
+0.5 days per decade
Growing days
186 days
n/a
187 days
n/a
-0.1 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
67 years, 1938 to 2022
A day with at least 55.8 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 110.4 mm (4.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Dumas: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
55.8 mm (2.2 in)
5 years
74.3 mm (2.9 in)
10 years
84.8 mm (3.3 in)
25 years
96.4 mm (3.8 in)
50 years
103.8 mm (4.1 in)
100 years
110.4 mm (4.3 in)
Longer than the 67 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, 67 years of values from 1938 to 2022.
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: 104.1 mm (4.1 in) in 1988; 102.9 mm (4.1 in) in 1999; 101.1 mm (4.0 in) in 1971.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Dumas standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Dumas 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.