Record envelope, standing records and threshold days for Ozark (USC00035508), Arkansas, United States, with 103 years of record.
Key Facts for Ozark
Ozark (USC00035508) is a weather station in Arkansas, United States at 35.48 latitude and -93.82 longitude, 119 m (390 ft) above sea level.
The station reports from 1892 to 1994, 103 years of record.
1,464 records set at Ozark still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Ozark set a daily record precipitation of 49.5 mm (1.9 in) on 20 February 1994.
About the Station
Location: Arkansas, United States, 35.48 latitude, -93.82 longitude.
Elevation: 119 m (390 ft).
Period of record: 1892 to 1994, 103 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 Ozark. 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 Ozark, 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)
-26.7 C (-16.1 F)
n/a
n/a
Feb
30.0 C (86.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Mar
34.4 C (93.9 F)
-15.6 C (3.9 F)
n/a
n/a
Apr
34.4 C (93.9 F)
-5.6 C (21.9 F)
n/a
n/a
May
37.2 C (99.0 F)
0.0 C (32.0 F)
n/a
n/a
Jun
42.2 C (108.0 F)
7.8 C (46.0 F)
n/a
n/a
Jul
46.7 C (116.1 F)
8.9 C (48.0 F)
n/a
n/a
Aug
48.9 C (120.0 F)
7.8 C (46.0 F)
n/a
n/a
Sep
43.3 C (109.9 F)
0.0 C (32.0 F)
n/a
n/a
Oct
40.0 C (104.0 F)
-7.2 C (19.0 F)
n/a
n/a
Nov
30.6 C (87.1 F)
-12.8 C (9.0 F)
n/a
n/a
Dec
27.8 C (82.0 F)
-22.2 C (-8.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Ozark still stand. 1989 holds the most, with 38.
Standing records at Ozark by the year they were set
Year set
Standing records
1892
19
1893
6
1894
20
1895
20
1896
29
1897
18
1898
19
1899
31
1900
9
1901
11
1902
22
1903
15
1904
11
1905
14
1906
14
1907
31
1908
14
1909
23
1910
22
1911
28
1916
19
1917
19
1918
27
1919
3
1920
21
1921
12
1922
12
1923
13
1924
16
1925
11
1926
7
1927
23
1928
15
1929
26
1930
22
1931
8
1932
14
1933
15
1934
29
1935
5
1936
27
1937
13
1938
13
1939
19
1940
14
1941
3
1942
15
1943
25
1944
3
1945
7
1946
15
1947
10
1948
16
1949
10
1950
18
1951
17
1952
17
1953
27
1954
19
1955
19
1956
17
1957
8
1958
3
1959
10
1960
16
1961
12
1962
16
1963
14
1964
13
1965
15
1966
16
1967
16
1968
6
1969
2
1970
8
1971
8
1972
9
1973
2
1974
17
1975
8
1976
12
1977
3
1978
6
1979
7
1980
13
1981
6
1982
7
1983
2
1984
14
1985
22
1986
14
1987
14
1988
20
1989
38
1990
9
1991
18
1992
23
1993
20
All-Time Record Progression
3 new records
3 all-time records were set at Ozark between 13 December 1927 and 10 August 1936. Each dot is a new record.
When Ozark set new all-time records
Date
Kind
Detail
1927-12-13
Record daily precipitation
Record daily precipitation 168.4 mm (6.6 in)
1936-08-09
Record high maximum temperature
Record high maximum temperature 46.1 C (115.0 F)
1936-08-10
Record high maximum temperature
Record high maximum temperature 48.9 C (120.0 F)
Wettest Day of Each Month
Dec: 168.4 mm (6.6 in)
The wettest day on record for each calendar month at Ozark. The most was 168.4 mm (6.6 in) on 13 December 1927.
Record daily precipitation for each month at Ozark
Month
Record daily precipitation (mm)
Date
Jan
109.0 mm (4.3 in)
31 January 1982
Feb
129.8 mm (5.1 in)
10 February 1966
Mar
101.6 mm (4.0 in)
9 March 1901
Apr
118.6 mm (4.7 in)
4 April 1964
May
132.1 mm (5.2 in)
20 May 1949
Jun
102.9 mm (4.1 in)
10 June 1945
Jul
91.4 mm (3.6 in)
18 July 1950
Aug
152.7 mm (6.0 in)
5 August 1992
Sep
102.9 mm (4.1 in)
25 September 1941
Oct
121.9 mm (4.8 in)
31 October 1900
Nov
119.4 mm (4.7 in)
4 November 1959
Dec
168.4 mm (6.6 in)
13 December 1927
Period of Record Coverage
1892 to 1994
Complete yearUnder 90 percent of days
99 years of record at Ozark, 1892 to 1994. 14 years have data for under 90 percent of days and are left out of rankings: 1892, 1893, 1900, 1904, 1907, 1908, 1911, 1916 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 78 complete years at Ozark, 1894 to 1992. Blue stripes are years cooler than the station's own mean of 16.3 C (61.3 F); red stripes are warmer. The coolest year was 1989, at 14.0 C (57.3 F), and the warmest was 1921, at 18.2 C (64.7 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Ozark as warming stripes, 1894 to 1992
Year
Annual mean temperature
Difference from the station mean
1894
17.1 C
+0.81 C
1895
15.9 C
-0.39 C
1896
18.0 C
+1.73 C
1897
17.7 C
+1.39 C
1898
16.8 C
+0.45 C
1899
16.9 C
+0.56 C
1901
17.1 C
+0.80 C
1902
16.6 C
+0.28 C
1903
15.4 C
-0.92 C
1906
15.7 C
-0.63 C
1910
16.7 C
+0.37 C
1918
16.3 C
-0.01 C
1921
18.2 C
+1.85 C
1922
17.6 C
+1.30 C
1923
16.5 C
+0.24 C
1924
15.5 C
-0.76 C
1925
16.9 C
+0.59 C
1926
16.3 C
-0.04 C
1927
16.8 C
+0.53 C
1928
15.9 C
-0.45 C
1929
15.1 C
-1.22 C
1930
15.8 C
-0.48 C
1931
16.7 C
+0.37 C
1932
16.2 C
-0.06 C
1933
16.7 C
+0.42 C
1934
16.9 C
+0.61 C
1935
16.3 C
+0.02 C
1937
15.9 C
-0.43 C
1938
17.4 C
+1.14 C
1940
15.3 C
-1.01 C
1941
16.0 C
-0.32 C
1942
16.3 C
-0.01 C
1943
16.8 C
+0.52 C
1944
16.4 C
+0.06 C
1945
16.1 C
-0.17 C
1946
17.3 C
+0.97 C
1947
16.0 C
-0.26 C
1948
15.3 C
-0.97 C
1950
15.9 C
-0.40 C
1951
15.8 C
-0.51 C
1952
16.5 C
+0.16 C
1953
17.2 C
+0.88 C
1954
17.9 C
+1.59 C
1955
16.4 C
+0.13 C
1956
17.1 C
+0.80 C
1957
16.9 C
+0.55 C
1958
15.8 C
-0.52 C
1959
16.3 C
-0.01 C
1960
15.9 C
-0.36 C
1961
15.9 C
-0.43 C
1962
16.6 C
+0.30 C
1963
17.0 C
+0.68 C
1964
16.8 C
+0.47 C
1965
16.9 C
+0.64 C
1966
15.9 C
-0.36 C
1967
16.4 C
+0.08 C
1968
15.7 C
-0.63 C
1969
16.1 C
-0.17 C
1970
16.4 C
+0.09 C
1971
16.6 C
+0.30 C
1972
16.4 C
+0.07 C
1973
16.6 C
+0.28 C
1974
16.5 C
+0.23 C
1975
16.2 C
-0.09 C
1976
15.8 C
-0.52 C
1977
16.6 C
+0.32 C
1978
15.9 C
-0.40 C
1979
15.1 C
-1.21 C
1980
16.9 C
+0.63 C
1981
16.6 C
+0.29 C
1982
16.3 C
-0.04 C
1985
14.6 C
-1.69 C
1986
15.6 C
-0.66 C
1987
15.3 C
-1.01 C
1988
14.5 C
-1.85 C
1989
14.0 C
-2.27 C
1991
15.4 C
-0.89 C
1992
14.6 C
-1.66 C
The annual mean temperature here has fallen by 0.1 C (0.1 to 0.2) per decade over 1894 to 1992. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 78 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Ozark
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.1 C (-0.2 to -0.1) per decade
-0.2 F (-0.3 to -0.1) per decade
1894 to 1992
78
Fall
Mean daily maximum
-0.08 C (-0.15 to -0.01) per decade
-0.15 F (-0.28 to -0.03) per decade
1894 to 1992
78
Fall
Mean daily minimum
-0.2 C (-0.2 to -0.1) per decade
-0.3 F (-0.4 to -0.2) per decade
1894 to 1992
78
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
1892 to 1994
Yearly extremes at Ozark: 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
39.4 C (102.9 F)
99
Coldest night (TNn)
-26.7 C (-16.1 F)
1918
-13.3 C (8.1 F)
99
Wettest day (Rx1day)
168.4 mm (6.6 in)
1927
76.5 mm (3.0 in)
99
Wettest five days (Rx5day)
230.8 mm (9.1 in)
1973
117.5 mm (4.6 in)
99
Longest dry spell (CDD)
45 days
1953
23 days
99
Hottest day (TXx)
The hottest day of the year at Ozark, 1892 to 1994. The record is 48.9 C (120.0 F) in 1936, marked on the chart; the median year is 39.4 C (102.9 F).
Hottest day (TXx) at Ozark by year
Year
Hottest day (TXx)
1892
38.3 C (100.9 F)
1893
38.9 C (102.0 F)
1894
41.7 C (107.1 F)
1895
37.8 C (100.0 F)
1896
42.8 C (109.0 F)
1897
41.1 C (106.0 F)
1898
37.8 C (100.0 F)
1899
40.6 C (105.1 F)
1900
40.0 C (104.0 F)
1901
42.8 C (109.0 F)
1902
39.4 C (102.9 F)
1903
36.7 C (98.1 F)
1904
37.8 C (100.0 F)
1905
37.2 C (99.0 F)
1906
35.6 C (96.1 F)
1907
41.1 C (106.0 F)
1908
37.8 C (100.0 F)
1909
45.6 C (114.1 F)
1910
40.6 C (105.1 F)
1911
40.6 C (105.1 F)
1916
41.7 C (107.1 F)
1917
40.0 C (104.0 F)
1918
42.8 C (109.0 F)
1919
40.0 C (104.0 F)
1920
38.3 C (100.9 F)
1921
38.3 C (100.9 F)
1922
40.0 C (104.0 F)
1923
41.1 C (106.0 F)
1924
39.4 C (102.9 F)
1925
40.6 C (105.1 F)
1926
40.0 C (104.0 F)
1927
37.8 C (100.0 F)
1928
36.7 C (98.1 F)
1929
40.0 C (104.0 F)
1930
45.0 C (113.0 F)
1931
39.4 C (102.9 F)
1932
40.0 C (104.0 F)
1933
41.1 C (106.0 F)
1934
44.4 C (111.9 F)
1935
42.8 C (109.0 F)
1936
48.9 C (120.0 F)
1937
42.8 C (109.0 F)
1938
39.4 C (102.9 F)
1939
42.8 C (109.0 F)
1940
37.8 C (100.0 F)
1941
38.9 C (102.0 F)
1942
39.4 C (102.9 F)
1943
44.4 C (111.9 F)
1944
38.3 C (100.9 F)
1945
38.3 C (100.9 F)
1946
39.4 C (102.9 F)
1947
43.3 C (109.9 F)
1948
36.7 C (98.1 F)
1949
38.9 C (102.0 F)
1950
36.1 C (97.0 F)
1951
39.4 C (102.9 F)
1952
41.1 C (106.0 F)
1953
41.7 C (107.1 F)
1954
46.7 C (116.1 F)
1955
38.9 C (102.0 F)
1956
44.4 C (111.9 F)
1957
40.6 C (105.1 F)
1958
37.2 C (99.0 F)
1959
36.7 C (98.1 F)
1960
37.8 C (100.0 F)
1961
35.6 C (96.1 F)
1962
39.4 C (102.9 F)
1963
42.2 C (108.0 F)
1964
41.1 C (106.0 F)
1965
38.3 C (100.9 F)
1966
40.0 C (104.0 F)
1967
36.7 C (98.1 F)
1968
37.8 C (100.0 F)
1969
40.0 C (104.0 F)
1970
41.1 C (106.0 F)
1971
38.9 C (102.0 F)
1972
40.6 C (105.1 F)
1973
38.9 C (102.0 F)
1974
41.1 C (106.0 F)
1975
38.3 C (100.9 F)
1976
38.9 C (102.0 F)
1977
37.2 C (99.0 F)
1978
40.6 C (105.1 F)
1979
37.2 C (99.0 F)
1980
42.2 C (108.0 F)
1981
37.8 C (100.0 F)
1982
37.2 C (99.0 F)
1983
28.3 C (82.9 F)
1984
41.7 C (107.1 F)
1985
38.9 C (102.0 F)
1986
42.8 C (109.0 F)
1987
39.4 C (102.9 F)
1988
38.9 C (102.0 F)
1989
37.8 C (100.0 F)
1990
38.9 C (102.0 F)
1991
37.8 C (100.0 F)
1992
35.6 C (96.1 F)
1993
39.4 C (102.9 F)
1994
22.2 C (72.0 F)
Coldest night (TNn)
The coldest night of the year at Ozark, 1892 to 1994. The record is -26.7 C (-16.1 F) in 1918, marked on the chart; the median year is -13.3 C (8.1 F).
Coldest night (TNn) at Ozark by year
Year
Coldest night (TNn)
1892
-19.4 C (-2.9 F)
1893
-17.8 C (0.0 F)
1894
-19.4 C (-2.9 F)
1895
-20.0 C (-4.0 F)
1896
-11.1 C (12.0 F)
1897
-14.4 C (6.1 F)
1898
-10.0 C (14.0 F)
1899
-26.1 C (-15.0 F)
1900
-14.4 C (6.1 F)
1901
-16.1 C (3.0 F)
1902
-11.1 C (12.0 F)
1903
-17.8 C (0.0 F)
1904
-16.1 C (3.0 F)
1905
-22.2 C (-8.0 F)
1906
-13.3 C (8.1 F)
1907
-10.6 C (12.9 F)
1908
-11.1 C (12.0 F)
1909
-13.9 C (7.0 F)
1910
-17.8 C (0.0 F)
1911
-17.2 C (1.0 F)
1916
-22.2 C (-8.0 F)
1917
-18.9 C (-2.0 F)
1918
-26.7 C (-16.1 F)
1919
-13.3 C (8.1 F)
1920
-10.6 C (12.9 F)
1921
-12.2 C (10.0 F)
1922
-6.1 C (21.0 F)
1923
-11.7 C (10.9 F)
1924
-15.6 C (3.9 F)
1925
-13.9 C (7.0 F)
1926
-10.0 C (14.0 F)
1927
-12.8 C (9.0 F)
1928
-16.7 C (1.9 F)
1929
-17.8 C (0.0 F)
1930
-26.7 C (-16.1 F)
1931
-11.1 C (12.0 F)
1932
-11.1 C (12.0 F)
1933
-19.4 C (-2.9 F)
1934
-10.0 C (14.0 F)
1935
-13.9 C (7.0 F)
1936
-17.8 C (0.0 F)
1937
-12.8 C (9.0 F)
1938
-12.2 C (10.0 F)
1939
-12.2 C (10.0 F)
1940
-20.6 C (-5.1 F)
1941
-11.1 C (12.0 F)
1942
-21.1 C (-6.0 F)
1943
-17.2 C (1.0 F)
1944
-18.9 C (-2.0 F)
1945
-13.9 C (7.0 F)
1946
-11.1 C (12.0 F)
1947
-12.8 C (9.0 F)
1948
-12.8 C (9.0 F)
1949
-11.1 C (12.0 F)
1950
-15.0 C (5.0 F)
1951
-16.1 C (3.0 F)
1952
-8.3 C (17.1 F)
1953
-11.7 C (10.9 F)
1954
-13.9 C (7.0 F)
1955
-13.3 C (8.1 F)
1956
-10.6 C (12.9 F)
1957
-12.2 C (10.0 F)
1958
-13.3 C (8.1 F)
1959
-15.0 C (5.0 F)
1960
-10.0 C (14.0 F)
1961
-12.8 C (9.0 F)
1962
-18.9 C (-2.0 F)
1963
-16.1 C (3.0 F)
1964
-16.1 C (3.0 F)
1965
-10.0 C (14.0 F)
1966
-18.3 C (-0.9 F)
1967
-12.8 C (9.0 F)
1968
-14.4 C (6.1 F)
1969
-11.1 C (12.0 F)
1970
-16.1 C (3.0 F)
1971
-13.3 C (8.1 F)
1972
-12.8 C (9.0 F)
1973
-11.1 C (12.0 F)
1974
-11.1 C (12.0 F)
1975
-11.7 C (10.9 F)
1976
-15.0 C (5.0 F)
1977
-16.7 C (1.9 F)
1978
-13.3 C (8.1 F)
1979
-16.1 C (3.0 F)
1980
-12.2 C (10.0 F)
1981
-17.2 C (1.0 F)
1982
-18.3 C (-0.9 F)
1983
-7.8 C (18.0 F)
1984
-12.2 C (10.0 F)
1985
-21.7 C (-7.1 F)
1986
-13.3 C (8.1 F)
1987
-10.0 C (14.0 F)
1988
-20.0 C (-4.0 F)
1989
-22.2 C (-8.0 F)
1990
-14.4 C (6.1 F)
1991
-11.1 C (12.0 F)
1992
-12.8 C (9.0 F)
1993
-11.1 C (12.0 F)
1994
-11.7 C (10.9 F)
Wettest day (Rx1day)
The wettest day of the year at Ozark, 1892 to 1994. The record is 168.4 mm (6.6 in) in 1927, marked on the chart; the median year is 76.5 mm (3.0 in).
Wettest day (Rx1day) at Ozark by year
Year
Wettest day (Rx1day)
1892
67.8 mm (2.7 in)
1893
63.8 mm (2.5 in)
1894
114.3 mm (4.5 in)
1895
99.1 mm (3.9 in)
1896
46.5 mm (1.8 in)
1897
61.5 mm (2.4 in)
1898
152.4 mm (6.0 in)
1899
62.2 mm (2.4 in)
1900
121.9 mm (4.8 in)
1901
101.6 mm (4.0 in)
1902
85.3 mm (3.4 in)
1903
64.8 mm (2.6 in)
1904
66.0 mm (2.6 in)
1905
83.6 mm (3.3 in)
1906
97.8 mm (3.9 in)
1907
103.6 mm (4.1 in)
1908
114.0 mm (4.5 in)
1909
69.9 mm (2.8 in)
1910
65.0 mm (2.6 in)
1911
77.5 mm (3.1 in)
1916
53.3 mm (2.1 in)
1917
66.0 mm (2.6 in)
1918
110.5 mm (4.4 in)
1919
50.8 mm (2.0 in)
1920
77.2 mm (3.0 in)
1921
95.8 mm (3.8 in)
1922
53.8 mm (2.1 in)
1923
61.0 mm (2.4 in)
1924
49.3 mm (1.9 in)
1925
71.1 mm (2.8 in)
1926
74.7 mm (2.9 in)
1927
168.4 mm (6.6 in)
1928
106.7 mm (4.2 in)
1929
101.6 mm (4.0 in)
1930
59.2 mm (2.3 in)
1931
83.8 mm (3.3 in)
1932
66.0 mm (2.6 in)
1933
71.1 mm (2.8 in)
1934
92.5 mm (3.6 in)
1935
101.6 mm (4.0 in)
1936
58.4 mm (2.3 in)
1937
50.8 mm (2.0 in)
1938
91.4 mm (3.6 in)
1939
69.9 mm (2.8 in)
1940
46.0 mm (1.8 in)
1941
102.9 mm (4.1 in)
1942
53.8 mm (2.1 in)
1943
99.6 mm (3.9 in)
1944
76.5 mm (3.0 in)
1945
102.9 mm (4.1 in)
1946
89.4 mm (3.5 in)
1947
50.8 mm (2.0 in)
1948
93.5 mm (3.7 in)
1949
132.1 mm (5.2 in)
1950
91.4 mm (3.6 in)
1951
105.4 mm (4.1 in)
1952
108.0 mm (4.3 in)
1953
74.2 mm (2.9 in)
1954
72.6 mm (2.9 in)
1955
73.4 mm (2.9 in)
1956
75.7 mm (3.0 in)
1957
80.5 mm (3.2 in)
1958
105.4 mm (4.1 in)
1959
119.4 mm (4.7 in)
1960
74.4 mm (2.9 in)
1961
66.5 mm (2.6 in)
1962
52.6 mm (2.1 in)
1963
38.1 mm (1.5 in)
1964
118.6 mm (4.7 in)
1965
70.6 mm (2.8 in)
1966
129.8 mm (5.1 in)
1967
71.1 mm (2.8 in)
1968
109.7 mm (4.3 in)
1969
94.5 mm (3.7 in)
1970
55.4 mm (2.2 in)
1971
126.7 mm (5.0 in)
1972
65.0 mm (2.6 in)
1973
86.6 mm (3.4 in)
1974
68.3 mm (2.7 in)
1975
85.3 mm (3.4 in)
1976
54.1 mm (2.1 in)
1977
87.6 mm (3.4 in)
1978
61.5 mm (2.4 in)
1979
77.7 mm (3.1 in)
1980
50.5 mm (2.0 in)
1981
76.2 mm (3.0 in)
1982
126.7 mm (5.0 in)
1983
21.8 mm (0.9 in)
1984
90.7 mm (3.6 in)
1985
94.0 mm (3.7 in)
1986
52.6 mm (2.1 in)
1987
60.2 mm (2.4 in)
1988
57.4 mm (2.3 in)
1989
66.3 mm (2.6 in)
1990
93.5 mm (3.7 in)
1991
90.9 mm (3.6 in)
1992
152.7 mm (6.0 in)
1993
104.1 mm (4.1 in)
1994
49.5 mm (1.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Ozark, 1892 to 1994. The record is 230.8 mm (9.1 in) in 1973, marked on the chart; the median year is 117.5 mm (4.6 in).
Wettest five days (Rx5day) at Ozark by year
Year
Wettest five days (Rx5day)
1892
137.2 mm (5.4 in)
1893
92.2 mm (3.6 in)
1894
134.6 mm (5.3 in)
1895
113.4 mm (4.5 in)
1896
57.9 mm (2.3 in)
1897
143.3 mm (5.6 in)
1898
154.9 mm (6.1 in)
1899
97.8 mm (3.9 in)
1900
129.3 mm (5.1 in)
1901
71.1 mm (2.8 in)
1902
149.0 mm (5.9 in)
1903
83.3 mm (3.3 in)
1904
108.0 mm (4.3 in)
1905
83.6 mm (3.3 in)
1906
113.3 mm (4.5 in)
1907
145.5 mm (5.7 in)
1908
130.3 mm (5.1 in)
1909
55.4 mm (2.2 in)
1910
92.5 mm (3.6 in)
1911
106.5 mm (4.2 in)
1916
53.3 mm (2.1 in)
1917
92.3 mm (3.6 in)
1918
110.5 mm (4.4 in)
1919
105.3 mm (4.1 in)
1920
82.3 mm (3.2 in)
1921
148.1 mm (5.8 in)
1922
87.8 mm (3.5 in)
1923
83.8 mm (3.3 in)
1924
94.4 mm (3.7 in)
1925
107.7 mm (4.2 in)
1926
129.6 mm (5.1 in)
1927
200.2 mm (7.9 in)
1928
110.5 mm (4.4 in)
1929
137.2 mm (5.4 in)
1930
121.7 mm (4.8 in)
1931
99.6 mm (3.9 in)
1932
118.1 mm (4.6 in)
1933
145.2 mm (5.7 in)
1934
138.4 mm (5.4 in)
1935
230.1 mm (9.1 in)
1936
122.4 mm (4.8 in)
1937
58.2 mm (2.3 in)
1938
194.4 mm (7.7 in)
1939
117.4 mm (4.6 in)
1940
69.6 mm (2.7 in)
1941
109.7 mm (4.3 in)
1942
91.0 mm (3.6 in)
1943
221.0 mm (8.7 in)
1944
79.9 mm (3.1 in)
1945
230.2 mm (9.1 in)
1946
153.7 mm (6.1 in)
1947
68.6 mm (2.7 in)
1948
109.7 mm (4.3 in)
1949
195.3 mm (7.7 in)
1950
156.9 mm (6.2 in)
1951
142.8 mm (5.6 in)
1952
116.9 mm (4.6 in)
1953
118.7 mm (4.7 in)
1954
97.3 mm (3.8 in)
1955
116.3 mm (4.6 in)
1956
90.2 mm (3.6 in)
1957
151.1 mm (5.9 in)
1958
113.8 mm (4.5 in)
1959
166.3 mm (6.5 in)
1960
95.7 mm (3.8 in)
1961
149.6 mm (5.9 in)
1962
146.8 mm (5.8 in)
1963
93.1 mm (3.7 in)
1964
161.3 mm (6.4 in)
1965
92.7 mm (3.6 in)
1966
208.5 mm (8.2 in)
1967
134.2 mm (5.3 in)
1968
157.9 mm (6.2 in)
1969
142.5 mm (5.6 in)
1970
98.9 mm (3.9 in)
1971
207.2 mm (8.2 in)
1972
155.2 mm (6.1 in)
1973
230.8 mm (9.1 in)
1974
163.8 mm (6.4 in)
1975
123.7 mm (4.9 in)
1976
86.1 mm (3.4 in)
1977
108.2 mm (4.3 in)
1978
138.2 mm (5.4 in)
1979
97.8 mm (3.9 in)
1980
78.4 mm (3.1 in)
1981
115.6 mm (4.6 in)
1982
156.4 mm (6.2 in)
1983
32.7 mm (1.3 in)
1984
157.7 mm (6.2 in)
1985
131.6 mm (5.2 in)
1986
106.0 mm (4.2 in)
1987
120.4 mm (4.7 in)
1988
89.1 mm (3.5 in)
1989
118.4 mm (4.7 in)
1990
193.5 mm (7.6 in)
1991
225.3 mm (8.9 in)
1992
161.3 mm (6.4 in)
1993
117.5 mm (4.6 in)
1994
84.3 mm (3.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Ozark, 1892 to 1994. The record is 45 days in 1953, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Ozark by year
Year
Longest dry spell (CDD)
1892
39 days
1893
32 days
1894
25 days
1895
20 days
1896
23 days
1897
23 days
1898
18 days
1899
34 days
1900
15 days
1901
17 days
1902
17 days
1903
26 days
1904
27 days
1905
17 days
1906
17 days
1907
26 days
1908
29 days
1909
17 days
1910
20 days
1911
22 days
1916
19 days
1917
24 days
1918
32 days
1919
27 days
1920
26 days
1921
26 days
1922
27 days
1923
22 days
1924
25 days
1925
24 days
1926
20 days
1927
25 days
1928
34 days
1929
28 days
1930
26 days
1931
39 days
1932
23 days
1933
35 days
1934
27 days
1935
21 days
1936
29 days
1937
19 days
1938
34 days
1939
23 days
1940
18 days
1941
15 days
1942
18 days
1943
30 days
1944
31 days
1945
17 days
1946
19 days
1947
37 days
1948
31 days
1949
33 days
1950
30 days
1951
25 days
1952
33 days
1953
45 days
1954
32 days
1955
39 days
1956
18 days
1957
22 days
1958
23 days
1959
36 days
1960
24 days
1961
22 days
1962
23 days
1963
33 days
1964
24 days
1965
26 days
1966
25 days
1967
20 days
1968
16 days
1969
22 days
1970
26 days
1971
14 days
1972
21 days
1973
19 days
1974
18 days
1975
34 days
1976
20 days
1977
19 days
1978
26 days
1979
24 days
1980
32 days
1981
23 days
1982
19 days
1983
17 days
1984
12 days
1985
23 days
1986
23 days
1987
29 days
1988
25 days
1989
23 days
1990
23 days
1991
19 days
1992
20 days
1993
21 days
1994
12 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
78 years with a frost
Across 78 years with a frost, the median last spring frost at Ozark falls on 1 April and the median first autumn frost on 4 November, which leaves a median of 215 days between them.
In 1960 to 1992 the median growing season was 219 days. That is 1 day more than in 1894 to 1940.
Fitted over all years, the growing season changes by -0.8 days per decade at this station.
Frost dates and growing season at Ozark
Measure
Median, all years
Earliest period (1894 to 1940)
Recent period (1960 to 1992)
Recent against earliest
Fitted trend
Last spring frost
1 April
31 March
2 April
2 days later
+0.2 days per decade
First autumn frost
4 November
6 November
5 November
1 day earlier
-0.6 days per decade
Growing days
215 days
218 days
219 days
1 day more
-0.8 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
84 years, 1894 to 1993
A day with at least 79.5 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 165.3 mm (6.5 in) of rain is expected about once in 100 years.
Rainfall return levels at Ozark: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
79.5 mm (3.1 in)
5 years
103.4 mm (4.1 in)
10 years
118.9 mm (4.7 in)
25 years
138.0 mm (5.4 in)
50 years
151.8 mm (6.0 in)
100 years
165.3 mm (6.5 in)
Longer than the 84 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, 84 years of values from 1894 to 1993.
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: 168.4 mm (6.6 in) in 1927; 152.7 mm (6.0 in) in 1992; 152.4 mm (6.0 in) in 1898.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Ozark, at 1956 and 1986. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1956 ran 0.5 C (1.0 F) higher than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1986 ran 0.6 C (1.1 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Ozark, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1956
+0.5
+1.0
likely
5
1986
-0.6
-1.1
likely
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Ozark standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ozark 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.