Record envelope, standing records and threshold days for Altus Irig Rsch STN (USC00340179), Oklahoma, United States, with 109 years of record.
Key Facts for Altus Irig Rsch STN
Altus Irig Rsch STN (USC00340179) is a weather station in Oklahoma, United States at 34.59 latitude and -99.33 longitude, 421 m (1,380 ft) above sea level.
The station reports from 1903 to 2011, 109 years of record.
1,464 records set at Altus Irig Rsch STN still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Altus Irig Rsch STN set a daily record snowfall of 7.6 cm (3.0 in) on 9 February 2011.
About the Station
Location: Oklahoma, United States, 34.59 latitude, -99.33 longitude.
Elevation: 421 m (1,380 ft).
Period of record: 1903 to 2011, 109 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 Altus Irig Rsch STN. 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 Altus Irig Rsch STN, 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)
-23.9 C (-11.0 F)
n/a
n/a
Feb
33.9 C (93.0 F)
-21.7 C (-7.1 F)
n/a
n/a
Mar
39.4 C (102.9 F)
-14.4 C (6.1 F)
n/a
n/a
Apr
40.6 C (105.1 F)
-5.6 C (21.9 F)
n/a
n/a
May
44.4 C (111.9 F)
1.1 C (34.0 F)
n/a
n/a
Jun
46.1 C (115.0 F)
6.7 C (44.1 F)
n/a
n/a
Jul
48.9 C (120.0 F)
12.2 C (54.0 F)
n/a
n/a
Aug
48.9 C (120.0 F)
9.4 C (48.9 F)
n/a
n/a
Sep
42.8 C (109.0 F)
-2.2 C (28.0 F)
n/a
n/a
Oct
40.0 C (104.0 F)
-8.3 C (17.1 F)
n/a
n/a
Nov
32.8 C (91.0 F)
-11.1 C (12.0 F)
n/a
n/a
Dec
31.1 C (88.0 F)
-23.3 C (-9.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Altus Irig Rsch STN still stand. 1936 holds the most, with 38.
Standing records at Altus Irig Rsch STN by the year they were set
Year set
Standing records
1903
15
1913
11
1914
15
1915
19
1916
12
1917
27
1918
30
1919
18
1920
22
1921
19
1922
18
1923
14
1924
23
1925
17
1926
10
1927
25
1928
21
1929
14
1930
22
1931
15
1932
18
1933
9
1934
3
1935
12
1936
38
1937
9
1938
9
1939
18
1940
21
1941
10
1942
5
1943
29
1944
13
1945
17
1946
7
1947
35
1948
18
1949
11
1950
22
1951
21
1952
23
1953
20
1954
23
1955
18
1956
18
1957
12
1958
11
1959
13
1960
15
1961
10
1962
14
1963
16
1964
9
1965
15
1966
22
1967
15
1968
6
1969
10
1970
17
1971
12
1972
19
1973
7
1974
14
1975
9
1976
11
1977
10
1978
10
1979
11
1980
20
1981
13
1982
10
1983
16
1984
8
1985
7
1986
13
1987
9
1988
7
1989
24
1990
14
1991
11
1992
12
1993
7
1994
4
1995
15
1996
16
1997
15
1998
18
1999
4
2000
14
2001
12
2002
11
2003
14
2004
14
2005
15
2006
17
2007
10
2008
10
2009
16
2010
4
2011
2
All-Time Record Progression
4 new records
4 all-time records were set at Altus Irig Rsch STN between 4 January 1947 and 22 December 1990. Each dot is a new record.
When Altus Irig Rsch STN set new all-time records
Date
Kind
Detail
1947-01-04
Record low minimum temperature
Record low minimum temperature -23.9 C (-11.0 F)
1971-09-05
Record daily precipitation
Record daily precipitation 148.6 mm (5.9 in)
1983-10-20
Record daily precipitation
Record daily precipitation 180.3 mm (7.1 in)
1990-12-22
Record low maximum temperature
Record low maximum temperature -13.3 C (8.1 F)
Wettest Day of Each Month
Oct: 180.3 mm (7.1 in)
The wettest day on record for each calendar month at Altus Irig Rsch STN. The most was 180.3 mm (7.1 in) on 20 October 1983.
Record daily precipitation for each month at Altus Irig Rsch STN
Month
Record daily precipitation (mm)
Date
Jan
62.5 mm (2.5 in)
8 January 1939
Feb
82.0 mm (3.2 in)
4 February 1964
Mar
81.8 mm (3.2 in)
23 March 2000
Apr
103.1 mm (4.1 in)
29 April 2009
May
116.8 mm (4.6 in)
16 May 1980
Jun
149.1 mm (5.9 in)
2 June 1991
Jul
93.2 mm (3.7 in)
7 July 1914
Aug
112.8 mm (4.4 in)
27 August 1979
Sep
148.6 mm (5.9 in)
5 September 1971
Oct
180.3 mm (7.1 in)
20 October 1983
Nov
75.7 mm (3.0 in)
20 November 1994
Dec
70.9 mm (2.8 in)
23 December 1932
Period of Record Coverage
1903 to 2011
Complete yearUnder 90 percent of days
100 years of record at Altus Irig Rsch STN, 1903 to 2011. 16 years have data for under 90 percent of days and are left out of rankings: 1903, 1913, 1925, 1929, 1934, 1937, 1948, 1958 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 82 complete years at Altus Irig Rsch STN, 1914 to 2010. Blue stripes are years cooler than the station's own mean of 17.0 C (62.6 F); red stripes are warmer. The coolest year was 1949, at 15.5 C (59.9 F), and the warmest was 1954, at 18.8 C (65.9 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Altus Irig Rsch STN as warming stripes, 1914 to 2010
Year
Annual mean temperature
Difference from the station mean
1914
16.7 C
-0.31 C
1915
16.2 C
-0.77 C
1916
16.8 C
-0.20 C
1917
16.3 C
-0.66 C
1918
17.1 C
+0.07 C
1919
15.7 C
-1.32 C
1920
15.9 C
-1.06 C
1921
17.9 C
+0.90 C
1922
17.3 C
+0.29 C
1923
17.4 C
+0.43 C
1924
16.8 C
-0.20 C
1926
16.6 C
-0.37 C
1927
17.7 C
+0.74 C
1930
17.0 C
+0.00 C
1931
17.5 C
+0.48 C
1932
16.7 C
-0.29 C
1933
18.1 C
+1.14 C
1936
17.8 C
+0.83 C
1939
18.1 C
+1.10 C
1940
16.7 C
-0.32 C
1941
17.1 C
+0.14 C
1942
16.5 C
-0.46 C
1943
17.8 C
+0.83 C
1944
17.5 C
+0.52 C
1945
16.7 C
-0.28 C
1946
17.9 C
+0.90 C
1947
17.1 C
+0.12 C
1949
15.5 C
-1.49 C
1950
16.5 C
-0.46 C
1951
17.0 C
+0.04 C
1952
17.6 C
+0.60 C
1953
18.0 C
+0.97 C
1954
18.8 C
+1.84 C
1955
17.6 C
+0.59 C
1956
18.3 C
+1.29 C
1957
16.8 C
-0.14 C
1961
16.4 C
-0.54 C
1962
17.5 C
+0.55 C
1963
18.2 C
+1.17 C
1964
17.5 C
+0.47 C
1965
17.4 C
+0.44 C
1966
16.5 C
-0.46 C
1967
17.4 C
+0.46 C
1968
16.3 C
-0.71 C
1969
16.8 C
-0.20 C
1970
17.0 C
-0.03 C
1971
17.1 C
+0.14 C
1972
16.7 C
-0.24 C
1973
16.5 C
-0.52 C
1974
17.1 C
+0.07 C
1975
16.2 C
-0.78 C
1976
16.1 C
-0.86 C
1977
17.6 C
+0.61 C
1978
16.6 C
-0.38 C
1979
15.8 C
-1.15 C
1980
17.6 C
+0.58 C
1981
17.9 C
+0.93 C
1982
16.9 C
-0.07 C
1983
16.4 C
-0.57 C
1985
16.7 C
-0.27 C
1986
17.6 C
+0.61 C
1988
16.8 C
-0.20 C
1989
16.6 C
-0.40 C
1990
17.4 C
+0.38 C
1991
17.2 C
+0.25 C
1993
16.2 C
-0.83 C
1994
17.1 C
+0.12 C
1995
16.9 C
-0.09 C
1996
17.3 C
+0.30 C
1997
16.1 C
-0.89 C
1998
17.7 C
+0.73 C
1999
17.2 C
+0.17 C
2000
16.7 C
-0.29 C
2001
16.9 C
-0.13 C
2002
16.2 C
-0.83 C
2003
16.4 C
-0.54 C
2004
16.6 C
-0.41 C
2005
16.6 C
-0.35 C
2006
17.7 C
+0.67 C
2008
16.2 C
-0.77 C
2009
16.1 C
-0.88 C
2010
16.2 C
-0.79 C
The fitted trend in annual mean temperature here over 1914 to 2010 is -0.04 C (-0.09 to 0.02) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.06 F (-0.16 to 0.03) per decade. The slope is a straight line fitted to 82 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Altus Irig Rsch STN
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.04 C (-0.09 to 0.02) per decade
-0.06 F (-0.16 to 0.03) per decade
1914 to 2010
82
Not clearly different from zero
Mean daily maximum
0.00 C (-0.08 to 0.07) per decade
0.00 F (-0.14 to 0.13) per decade
1914 to 2010
82
Not clearly different from zero
Mean daily minimum
-0.07 C (-0.11 to -0.02) per decade
-0.12 F (-0.21 to -0.04) per decade
1914 to 2010
82
Fall
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
1903 to 2011
Yearly extremes at Altus Irig Rsch STN: 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)
1936
42.2 C (108.0 F)
100
Coldest night (TNn)
-23.9 C (-11.0 F)
1947
-13.9 C (7.0 F)
100
Wettest day (Rx1day)
180.3 mm (7.1 in)
1983
65.9 mm (2.6 in)
100
Wettest five days (Rx5day)
257.0 mm (10.1 in)
1983
100.1 mm (3.9 in)
100
Longest dry spell (CDD)
97 days
1921
37 days
100
Hottest day (TXx)
The hottest day of the year at Altus Irig Rsch STN, 1903 to 2011. The record is 48.9 C (120.0 F) in 1936, marked on the chart; the median year is 42.2 C (108.0 F).
Hottest day (TXx) at Altus Irig Rsch STN by year
Year
Hottest day (TXx)
1903
41.1 C (106.0 F)
1913
41.7 C (107.1 F)
1914
42.8 C (109.0 F)
1915
40.0 C (104.0 F)
1916
43.9 C (111.0 F)
1917
43.3 C (109.9 F)
1918
43.9 C (111.0 F)
1919
40.0 C (104.0 F)
1920
40.6 C (105.1 F)
1921
41.7 C (107.1 F)
1922
42.8 C (109.0 F)
1923
42.8 C (109.0 F)
1924
45.0 C (113.0 F)
1925
42.8 C (109.0 F)
1926
41.7 C (107.1 F)
1927
42.2 C (108.0 F)
1928
40.6 C (105.1 F)
1929
42.2 C (108.0 F)
1930
43.3 C (109.9 F)
1931
42.8 C (109.0 F)
1932
41.7 C (107.1 F)
1933
43.9 C (111.0 F)
1934
28.9 C (84.0 F)
1935
41.1 C (106.0 F)
1936
48.9 C (120.0 F)
1937
43.9 C (111.0 F)
1938
40.0 C (104.0 F)
1939
42.2 C (108.0 F)
1940
41.7 C (107.1 F)
1941
40.6 C (105.1 F)
1942
38.3 C (100.9 F)
1943
47.8 C (118.0 F)
1944
45.6 C (114.1 F)
1945
42.8 C (109.0 F)
1946
42.8 C (109.0 F)
1947
43.3 C (109.9 F)
1948
41.1 C (106.0 F)
1949
38.9 C (102.0 F)
1950
38.3 C (100.9 F)
1951
43.3 C (109.9 F)
1952
43.3 C (109.9 F)
1953
45.0 C (113.0 F)
1954
44.4 C (111.9 F)
1955
42.2 C (108.0 F)
1956
42.2 C (108.0 F)
1957
41.7 C (107.1 F)
1958
43.9 C (111.0 F)
1959
40.6 C (105.1 F)
1960
41.1 C (106.0 F)
1961
40.6 C (105.1 F)
1962
44.4 C (111.9 F)
1963
43.3 C (109.9 F)
1964
43.3 C (109.9 F)
1965
40.0 C (104.0 F)
1966
42.2 C (108.0 F)
1967
41.1 C (106.0 F)
1968
40.6 C (105.1 F)
1969
42.8 C (109.0 F)
1970
42.8 C (109.0 F)
1971
42.2 C (108.0 F)
1972
42.2 C (108.0 F)
1973
40.6 C (105.1 F)
1974
42.2 C (108.0 F)
1975
39.4 C (102.9 F)
1976
39.4 C (102.9 F)
1977
40.6 C (105.1 F)
1978
42.8 C (109.0 F)
1979
40.0 C (104.0 F)
1980
46.1 C (115.0 F)
1981
43.3 C (109.9 F)
1982
41.1 C (106.0 F)
1983
43.3 C (109.9 F)
1984
42.2 C (108.0 F)
1985
41.1 C (106.0 F)
1986
42.2 C (108.0 F)
1987
38.3 C (100.9 F)
1988
43.3 C (109.9 F)
1989
43.9 C (111.0 F)
1990
41.1 C (106.0 F)
1991
40.0 C (104.0 F)
1992
39.4 C (102.9 F)
1993
40.0 C (104.0 F)
1994
46.1 C (115.0 F)
1995
42.8 C (109.0 F)
1996
43.3 C (109.9 F)
1997
38.9 C (102.0 F)
1998
43.9 C (111.0 F)
1999
42.2 C (108.0 F)
2000
44.4 C (111.9 F)
2001
43.3 C (109.9 F)
2002
40.0 C (104.0 F)
2003
43.3 C (109.9 F)
2004
40.6 C (105.1 F)
2005
40.6 C (105.1 F)
2006
42.8 C (109.0 F)
2007
38.9 C (102.0 F)
2008
42.8 C (109.0 F)
2009
42.8 C (109.0 F)
2010
40.0 C (104.0 F)
2011
24.4 C (75.9 F)
Coldest night (TNn)
The coldest night of the year at Altus Irig Rsch STN, 1903 to 2011. The record is -23.9 C (-11.0 F) in 1947, marked on the chart; the median year is -13.9 C (7.0 F).
Coldest night (TNn) at Altus Irig Rsch STN by year
Year
Coldest night (TNn)
1903
10.6 C (51.1 F)
1913
-11.7 C (10.9 F)
1914
-16.1 C (3.0 F)
1915
-9.4 C (15.1 F)
1916
-17.2 C (1.0 F)
1917
-14.4 C (6.1 F)
1918
-19.4 C (-2.9 F)
1919
-13.9 C (7.0 F)
1920
-13.3 C (8.1 F)
1921
-12.2 C (10.0 F)
1922
-14.4 C (6.1 F)
1923
-11.7 C (10.9 F)
1924
-18.3 C (-0.9 F)
1925
-12.2 C (10.0 F)
1926
-12.8 C (9.0 F)
1927
-14.4 C (6.1 F)
1928
-15.6 C (3.9 F)
1929
-15.6 C (3.9 F)
1930
-22.8 C (-9.0 F)
1931
-9.4 C (15.1 F)
1932
-17.8 C (0.0 F)
1933
-21.1 C (-6.0 F)
1934
-11.1 C (12.0 F)
1935
-10.0 C (14.0 F)
1936
-15.0 C (5.0 F)
1937
-13.9 C (7.0 F)
1938
-12.8 C (9.0 F)
1939
-12.2 C (10.0 F)
1940
-19.4 C (-2.9 F)
1941
-6.7 C (19.9 F)
1942
-19.4 C (-2.9 F)
1943
-18.3 C (-0.9 F)
1944
-15.0 C (5.0 F)
1945
-12.8 C (9.0 F)
1946
-12.8 C (9.0 F)
1947
-23.9 C (-11.0 F)
1948
-16.1 C (3.0 F)
1949
-13.9 C (7.0 F)
1950
-14.4 C (6.1 F)
1951
-18.9 C (-2.0 F)
1952
-7.8 C (18.0 F)
1953
-12.8 C (9.0 F)
1954
-12.8 C (9.0 F)
1955
-10.0 C (14.0 F)
1956
-9.4 C (15.1 F)
1957
-10.6 C (12.9 F)
1958
-12.8 C (9.0 F)
1959
-10.6 C (12.9 F)
1960
-13.9 C (7.0 F)
1961
-12.8 C (9.0 F)
1962
-18.3 C (-0.9 F)
1963
-18.9 C (-2.0 F)
1964
-15.0 C (5.0 F)
1965
-12.2 C (10.0 F)
1966
-22.2 C (-8.0 F)
1967
-13.3 C (8.1 F)
1968
-14.4 C (6.1 F)
1969
-10.6 C (12.9 F)
1970
-12.2 C (10.0 F)
1971
-16.7 C (1.9 F)
1972
-15.6 C (3.9 F)
1973
-21.7 C (-7.1 F)
1974
-13.3 C (8.1 F)
1975
-13.3 C (8.1 F)
1976
-13.9 C (7.0 F)
1977
-19.4 C (-2.9 F)
1978
-16.7 C (1.9 F)
1979
-16.1 C (3.0 F)
1980
-15.6 C (3.9 F)
1981
-17.8 C (0.0 F)
1982
-16.7 C (1.9 F)
1983
-17.8 C (0.0 F)
1984
-17.2 C (1.0 F)
1985
-15.0 C (5.0 F)
1986
-21.7 C (-7.1 F)
1987
-13.9 C (7.0 F)
1988
-21.7 C (-7.1 F)
1989
-23.3 C (-9.9 F)
1990
-15.6 C (3.9 F)
1991
-8.9 C (16.0 F)
1992
-7.8 C (18.0 F)
1993
-11.1 C (12.0 F)
1994
-15.0 C (5.0 F)
1995
-9.4 C (15.1 F)
1996
-18.3 C (-0.9 F)
1997
-12.2 C (10.0 F)
1998
-12.2 C (10.0 F)
1999
-11.7 C (10.9 F)
2000
-10.6 C (12.9 F)
2001
-10.6 C (12.9 F)
2002
-13.9 C (7.0 F)
2003
-11.1 C (12.0 F)
2004
-15.0 C (5.0 F)
2005
-16.7 C (1.9 F)
2006
-13.9 C (7.0 F)
2007
-11.7 C (10.9 F)
2008
-10.6 C (12.9 F)
2009
-14.4 C (6.1 F)
2010
-13.3 C (8.1 F)
2011
-16.1 C (3.0 F)
Wettest day (Rx1day)
The wettest day of the year at Altus Irig Rsch STN, 1903 to 2011. The record is 180.3 mm (7.1 in) in 1983, marked on the chart; the median year is 65.9 mm (2.6 in).
Wettest day (Rx1day) at Altus Irig Rsch STN by year
Year
Wettest day (Rx1day)
1903
21.6 mm (0.9 in)
1913
59.2 mm (2.3 in)
1914
93.2 mm (3.7 in)
1915
84.1 mm (3.3 in)
1916
57.4 mm (2.3 in)
1917
55.9 mm (2.2 in)
1918
112.8 mm (4.4 in)
1919
87.6 mm (3.4 in)
1920
52.8 mm (2.1 in)
1921
38.4 mm (1.5 in)
1922
59.2 mm (2.3 in)
1923
94.7 mm (3.7 in)
1924
46.7 mm (1.8 in)
1925
91.4 mm (3.6 in)
1926
68.6 mm (2.7 in)
1927
50.8 mm (2.0 in)
1928
61.0 mm (2.4 in)
1929
66.0 mm (2.6 in)
1930
58.7 mm (2.3 in)
1931
51.3 mm (2.0 in)
1932
70.9 mm (2.8 in)
1933
90.2 mm (3.6 in)
1934
36.8 mm (1.4 in)
1935
42.7 mm (1.7 in)
1936
94.2 mm (3.7 in)
1937
68.6 mm (2.7 in)
1938
54.1 mm (2.1 in)
1939
62.5 mm (2.5 in)
1940
58.4 mm (2.3 in)
1941
91.4 mm (3.6 in)
1942
68.1 mm (2.7 in)
1943
63.2 mm (2.5 in)
1944
55.1 mm (2.2 in)
1945
49.8 mm (2.0 in)
1946
79.2 mm (3.1 in)
1947
66.3 mm (2.6 in)
1948
36.8 mm (1.4 in)
1949
86.4 mm (3.4 in)
1950
37.6 mm (1.5 in)
1951
58.9 mm (2.3 in)
1952
42.7 mm (1.7 in)
1953
90.7 mm (3.6 in)
1954
45.2 mm (1.8 in)
1955
65.8 mm (2.6 in)
1956
108.5 mm (4.3 in)
1957
85.9 mm (3.4 in)
1958
58.9 mm (2.3 in)
1959
67.3 mm (2.6 in)
1960
86.1 mm (3.4 in)
1961
59.7 mm (2.4 in)
1962
57.2 mm (2.3 in)
1963
72.9 mm (2.9 in)
1964
82.0 mm (3.2 in)
1965
111.3 mm (4.4 in)
1966
58.4 mm (2.3 in)
1967
51.8 mm (2.0 in)
1968
84.1 mm (3.3 in)
1969
48.8 mm (1.9 in)
1970
25.4 mm (1.0 in)
1971
148.6 mm (5.9 in)
1972
61.5 mm (2.4 in)
1973
67.3 mm (2.6 in)
1974
81.8 mm (3.2 in)
1975
105.9 mm (4.2 in)
1976
46.5 mm (1.8 in)
1977
69.9 mm (2.8 in)
1978
59.9 mm (2.4 in)
1979
112.8 mm (4.4 in)
1980
116.8 mm (4.6 in)
1981
43.7 mm (1.7 in)
1982
43.7 mm (1.7 in)
1983
180.3 mm (7.1 in)
1984
45.2 mm (1.8 in)
1985
116.8 mm (4.6 in)
1986
76.2 mm (3.0 in)
1987
100.3 mm (3.9 in)
1988
76.2 mm (3.0 in)
1989
88.9 mm (3.5 in)
1990
95.3 mm (3.8 in)
1991
149.1 mm (5.9 in)
1992
88.9 mm (3.5 in)
1993
51.6 mm (2.0 in)
1994
75.7 mm (3.0 in)
1995
95.0 mm (3.7 in)
1996
68.3 mm (2.7 in)
1997
133.6 mm (5.3 in)
1998
61.5 mm (2.4 in)
1999
56.1 mm (2.2 in)
2000
81.8 mm (3.2 in)
2001
67.8 mm (2.7 in)
2002
49.8 mm (2.0 in)
2003
48.5 mm (1.9 in)
2004
68.8 mm (2.7 in)
2005
59.9 mm (2.4 in)
2006
61.0 mm (2.4 in)
2007
45.7 mm (1.8 in)
2008
54.4 mm (2.1 in)
2009
103.1 mm (4.1 in)
2010
47.2 mm (1.9 in)
2011
11.2 mm (0.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Altus Irig Rsch STN, 1903 to 2011. The record is 257.0 mm (10.1 in) in 1983, marked on the chart; the median year is 100.1 mm (3.9 in).
Wettest five days (Rx5day) at Altus Irig Rsch STN by year
Year
Wettest five days (Rx5day)
1903
25.2 mm (1.0 in)
1913
102.7 mm (4.0 in)
1914
101.1 mm (4.0 in)
1915
125.5 mm (4.9 in)
1916
100.1 mm (3.9 in)
1917
61.0 mm (2.4 in)
1918
132.4 mm (5.2 in)
1919
185.6 mm (7.3 in)
1920
155.4 mm (6.1 in)
1921
82.3 mm (3.2 in)
1922
73.3 mm (2.9 in)
1923
158.6 mm (6.2 in)
1924
69.8 mm (2.7 in)
1925
118.3 mm (4.7 in)
1926
131.6 mm (5.2 in)
1927
79.5 mm (3.1 in)
1928
84.7 mm (3.3 in)
1929
109.7 mm (4.3 in)
1930
94.0 mm (3.7 in)
1931
64.0 mm (2.5 in)
1932
90.0 mm (3.5 in)
1933
100.6 mm (4.0 in)
1934
41.1 mm (1.6 in)
1935
81.6 mm (3.2 in)
1936
121.9 mm (4.8 in)
1937
89.2 mm (3.5 in)
1938
80.8 mm (3.2 in)
1939
78.0 mm (3.1 in)
1940
67.3 mm (2.6 in)
1941
105.6 mm (4.2 in)
1942
102.4 mm (4.0 in)
1943
75.1 mm (3.0 in)
1944
79.0 mm (3.1 in)
1945
89.6 mm (3.5 in)
1946
84.5 mm (3.3 in)
1947
111.0 mm (4.4 in)
1948
54.4 mm (2.1 in)
1949
122.7 mm (4.8 in)
1950
103.9 mm (4.1 in)
1951
105.9 mm (4.2 in)
1952
93.2 mm (3.7 in)
1953
90.7 mm (3.6 in)
1954
113.0 mm (4.4 in)
1955
162.8 mm (6.4 in)
1956
111.8 mm (4.4 in)
1957
133.1 mm (5.2 in)
1958
124.7 mm (4.9 in)
1959
124.5 mm (4.9 in)
1960
172.7 mm (6.8 in)
1961
92.2 mm (3.6 in)
1962
70.9 mm (2.8 in)
1963
144.0 mm (5.7 in)
1964
100.1 mm (3.9 in)
1965
181.7 mm (7.2 in)
1966
79.3 mm (3.1 in)
1967
60.6 mm (2.4 in)
1968
90.2 mm (3.6 in)
1969
105.5 mm (4.2 in)
1970
36.5 mm (1.4 in)
1971
150.1 mm (5.9 in)
1972
91.2 mm (3.6 in)
1973
100.4 mm (4.0 in)
1974
125.3 mm (4.9 in)
1975
125.5 mm (4.9 in)
1976
97.3 mm (3.8 in)
1977
74.7 mm (2.9 in)
1978
78.4 mm (3.1 in)
1979
129.8 mm (5.1 in)
1980
149.8 mm (5.9 in)
1981
78.0 mm (3.1 in)
1982
71.4 mm (2.8 in)
1983
257.0 mm (10.1 in)
1984
56.6 mm (2.2 in)
1985
159.4 mm (6.3 in)
1986
149.3 mm (5.9 in)
1987
149.1 mm (5.9 in)
1988
93.9 mm (3.7 in)
1989
112.5 mm (4.4 in)
1990
111.0 mm (4.4 in)
1991
237.5 mm (9.4 in)
1992
97.8 mm (3.9 in)
1993
98.6 mm (3.9 in)
1994
79.0 mm (3.1 in)
1995
172.7 mm (6.8 in)
1996
132.3 mm (5.2 in)
1997
135.7 mm (5.3 in)
1998
81.6 mm (3.2 in)
1999
90.2 mm (3.6 in)
2000
129.5 mm (5.1 in)
2001
92.4 mm (3.6 in)
2002
65.9 mm (2.6 in)
2003
111.8 mm (4.4 in)
2004
105.7 mm (4.2 in)
2005
76.2 mm (3.0 in)
2006
106.7 mm (4.2 in)
2007
63.0 mm (2.5 in)
2008
61.9 mm (2.4 in)
2009
111.5 mm (4.4 in)
2010
92.7 mm (3.6 in)
2011
20.0 mm (0.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Altus Irig Rsch STN, 1903 to 2011. The record is 97 days in 1921, marked on the chart; the median year is 37 days.
Longest dry spell (CDD) at Altus Irig Rsch STN by year
Year
Longest dry spell (CDD)
1903
21 days
1913
38 days
1914
48 days
1915
30 days
1916
41 days
1917
41 days
1918
25 days
1919
25 days
1920
39 days
1921
97 days
1922
41 days
1923
29 days
1924
40 days
1925
32 days
1926
52 days
1927
34 days
1928
36 days
1929
31 days
1930
51 days
1931
39 days
1932
35 days
1933
30 days
1934
37 days
1935
29 days
1936
74 days
1937
30 days
1938
45 days
1939
46 days
1940
47 days
1941
18 days
1942
39 days
1943
41 days
1944
32 days
1945
44 days
1946
36 days
1947
31 days
1948
29 days
1949
38 days
1950
96 days
1951
36 days
1952
48 days
1953
44 days
1954
63 days
1955
87 days
1956
39 days
1957
36 days
1958
22 days
1959
40 days
1960
38 days
1961
27 days
1962
25 days
1963
36 days
1964
29 days
1965
44 days
1966
39 days
1967
35 days
1968
25 days
1969
44 days
1970
52 days
1971
53 days
1972
41 days
1973
27 days
1974
57 days
1975
31 days
1976
35 days
1977
52 days
1978
42 days
1979
25 days
1980
34 days
1981
31 days
1982
26 days
1983
39 days
1984
24 days
1985
19 days
1986
36 days
1987
56 days
1988
27 days
1989
62 days
1990
28 days
1991
40 days
1992
50 days
1993
22 days
1994
37 days
1995
28 days
1996
77 days
1997
35 days
1998
34 days
1999
32 days
2000
82 days
2001
57 days
2002
29 days
2003
36 days
2004
33 days
2005
48 days
2006
67 days
2007
39 days
2008
77 days
2009
28 days
2010
45 days
2011
32 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
82 years with a frost
Across 82 years with a frost, the median last spring frost at Altus Irig Rsch STN falls on 5 April and the median first autumn frost on 4 November, which leaves a median of 214 days between them.
In 1977 to 2010 the median growing season was 213 days. That is 3 days fewer than in 1914 to 1951.
Fitted over all years, the growing season changes by 0.0 days per decade at this station.
Frost dates and growing season at Altus Irig Rsch STN
Measure
Median, all years
Earliest period (1914 to 1951)
Recent period (1977 to 2010)
Recent against earliest
Fitted trend
Last spring frost
5 April
5 April
5 April
no change
-0.2 days per decade
First autumn frost
4 November
5 November
2 November
3 days earlier
-0.2 days per decade
Growing days
214 days
216 days
213 days
3 days fewer
0.0 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
91 years, 1914 to 2010
A day with at least 66.7 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 167.9 mm (6.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Altus Irig Rsch STN: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
66.7 mm (2.6 in)
5 years
90.3 mm (3.6 in)
10 years
107.2 mm (4.2 in)
25 years
130.2 mm (5.1 in)
50 years
148.5 mm (5.8 in)
100 years
167.9 mm (6.6 in)
Longer than the 91 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, 91 years of values from 1914 to 2010.
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: 180.3 mm (7.1 in) in 1983; 149.1 mm (5.9 in) in 1991; 148.6 mm (5.9 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 Altus Irig Rsch STN standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Altus Irig Rsch STN 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.