Record envelope, standing records and threshold days for Nowata (USC00346485), Oklahoma, United States, with 72 years of record.
Key Facts for Nowata
Nowata (USC00346485) is a weather station in Oklahoma, United States at 36.69 latitude and -95.64 longitude, 216 m (710 ft) above sea level.
The station reports from 1936 to 2007, 72 years of record.
1,464 records set at Nowata still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Nowata tied a daily record high minimum temperature of 14.4 C (57.9 F) on 20 November 2007.
About the Station
Location: Oklahoma, United States, 36.69 latitude, -95.64 longitude.
Elevation: 216 m (710 ft).
Period of record: 1936 to 2007, 72 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 Nowata. 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 Nowata, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
25.6 C (78.1 F)
-25.0 C (-13.0 F)
n/a
n/a
Feb
31.7 C (89.1 F)
-22.8 C (-9.0 F)
n/a
n/a
Mar
36.7 C (98.1 F)
-20.0 C (-4.0 F)
n/a
n/a
Apr
38.3 C (100.9 F)
-10.0 C (14.0 F)
n/a
n/a
May
36.1 C (97.0 F)
-1.7 C (28.9 F)
n/a
n/a
Jun
41.7 C (107.1 F)
7.8 C (46.0 F)
n/a
n/a
Jul
47.2 C (117.0 F)
10.0 C (50.0 F)
n/a
n/a
Aug
47.8 C (118.0 F)
8.9 C (48.0 F)
n/a
n/a
Sep
44.4 C (111.9 F)
-0.6 C (30.9 F)
n/a
n/a
Oct
37.2 C (99.0 F)
-8.3 C (17.1 F)
n/a
n/a
Nov
31.7 C (89.1 F)
-15.0 C (5.0 F)
n/a
n/a
Dec
26.1 C (79.0 F)
-25.0 C (-13.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Nowata still stand. 1954 holds the most, with 48.
Standing records at Nowata by the year they were set
Year set
Standing records
1936
40
1937
26
1938
30
1939
7
1940
6
1941
11
1942
29
1943
36
1944
16
1945
13
1946
21
1947
29
1948
26
1949
19
1950
41
1951
25
1952
36
1953
42
1954
48
1955
17
1956
29
1957
15
1958
22
1959
19
1960
24
1961
14
1962
24
1963
38
1964
14
1965
24
1966
27
1967
27
1968
19
1969
10
1970
16
1971
20
1972
18
1973
5
1974
23
1975
13
1976
19
1977
18
1978
19
1979
22
1980
24
1981
14
1982
22
1983
21
1984
17
1985
18
1986
18
1987
8
1988
9
1989
29
1990
17
1991
24
1992
20
1993
23
1994
13
1995
17
1996
20
1997
13
1999
13
2000
24
2001
22
2002
11
2003
5
2004
11
2005
7
2006
29
2007
18
All-Time Record Progression
5 new records
5 all-time records were set at Nowata between 17 March 1970 and 24 December 1983. Each dot is a new record.
When Nowata set new all-time records
Date
Kind
Detail
1970-03-17
Record daily snowfall
Record daily snowfall 40.6 cm (16.0 in)
1977-01-09
Record low maximum temperature
Record low maximum temperature -12.2 C (10.0 F)
1983-12-19
Record low maximum temperature
Record low maximum temperature -13.3 C (8.1 F)
1983-12-22
Record low maximum temperature
Record low maximum temperature -14.4 C (6.1 F)
1983-12-24
Record low maximum temperature
Record low maximum temperature -15.6 C (3.9 F)
Wettest Day of Each Month
Aug: 196.3 mm (7.7 in)
The wettest day on record for each calendar month at Nowata. The most was 196.3 mm (7.7 in) on 14 August 1961.
Record daily precipitation for each month at Nowata
Month
Record daily precipitation (mm)
Date
Jan
88.9 mm (3.5 in)
5 January 1946
Feb
142.2 mm (5.6 in)
23 February 1985
Mar
94.5 mm (3.7 in)
10 March 1974
Apr
96.5 mm (3.8 in)
23 April 1983
May
109.7 mm (4.3 in)
19 May 1943
Jun
127.8 mm (5.0 in)
22 June 1948
Jul
101.6 mm (4.0 in)
13 July 1986
Aug
196.3 mm (7.7 in)
14 August 1961
Sep
165.1 mm (6.5 in)
30 September 1986
Oct
113.0 mm (4.4 in)
22 October 1972
Nov
103.1 mm (4.1 in)
3 November 1974
Dec
55.1 mm (2.2 in)
15 December 1971
Period of Record Coverage
1936 to 2007
Complete yearUnder 90 percent of days
71 years of record at Nowata, 1936 to 2007. 13 years have data for under 90 percent of days and are left out of rankings: 1936, 1939, 1940, 1984, 1997, 1999, 2001, 2002 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 52 complete years at Nowata, 1938 to 2000. Blue stripes are years cooler than the station's own mean of 15.1 C (59.2 F); red stripes are warmer. The coolest year was 1989, at 13.8 C (56.9 F), and the warmest was 1954, at 16.9 C (62.3 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Nowata as warming stripes, 1938 to 2000
Year
Annual mean temperature
Difference from the station mean
1938
16.8 C
+1.65 C
1942
14.5 C
-0.56 C
1944
14.5 C
-0.60 C
1946
16.3 C
+1.20 C
1947
14.6 C
-0.52 C
1948
14.0 C
-1.12 C
1949
14.3 C
-0.83 C
1950
14.2 C
-0.93 C
1951
14.6 C
-0.52 C
1952
15.4 C
+0.32 C
1953
16.0 C
+0.87 C
1954
16.9 C
+1.76 C
1955
15.4 C
+0.32 C
1956
16.0 C
+0.88 C
1957
14.9 C
-0.16 C
1958
14.5 C
-0.58 C
1959
14.7 C
-0.38 C
1960
14.4 C
-0.67 C
1961
14.6 C
-0.55 C
1962
15.4 C
+0.33 C
1963
16.0 C
+0.87 C
1964
15.5 C
+0.44 C
1965
16.1 C
+0.96 C
1966
14.9 C
-0.18 C
1967
15.0 C
-0.09 C
1968
14.5 C
-0.60 C
1969
15.0 C
-0.14 C
1970
15.2 C
+0.05 C
1971
15.4 C
+0.31 C
1972
15.0 C
-0.14 C
1973
15.1 C
+0.04 C
1974
15.2 C
+0.07 C
1976
14.8 C
-0.30 C
1977
15.9 C
+0.76 C
1978
14.6 C
-0.46 C
1979
13.9 C
-1.18 C
1980
16.2 C
+1.13 C
1982
14.9 C
-0.16 C
1983
14.6 C
-0.51 C
1984
15.2 C
+0.09 C
1985
14.7 C
-0.43 C
1986
15.8 C
+0.71 C
1987
15.5 C
+0.37 C
1988
15.1 C
+0.04 C
1989
13.8 C
-1.26 C
1990
15.6 C
+0.53 C
1991
16.0 C
+0.88 C
1992
15.0 C
-0.15 C
1993
13.9 C
-1.16 C
1994
14.8 C
-0.26 C
1996
14.1 C
-0.99 C
2000
15.9 C
+0.76 C
The fitted trend in annual mean temperature here over 1938 to 2000 is -0.04 C (-0.16 to 0.09) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.3 to 0.2) per decade. The slope is a straight line fitted to 52 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Nowata
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.04 C (-0.16 to 0.09) per decade
-0.1 F (-0.3 to 0.2) per decade
1938 to 2000
52
Not clearly different from zero
Mean daily maximum
-0.2 C (-0.4 to -0.1) per decade
-0.4 F (-0.7 to -0.1) per decade
1938 to 2000
52
Fall
Mean daily minimum
0.15 C (0.03 to 0.27) per decade
0.3 F (0.1 to 0.5) per decade
1938 to 2000
52
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
1936 to 2007
Yearly extremes at Nowata: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
47.8 C (118.0 F)
1936
40.0 C (104.0 F)
71
Coldest night (TNn)
-25.0 C (-13.0 F)
1943
-17.2 C (1.0 F)
71
Wettest day (Rx1day)
196.3 mm (7.7 in)
1961
74.2 mm (2.9 in)
71
Wettest five days (Rx5day)
287.2 mm (11.3 in)
1943
114.3 mm (4.5 in)
71
Longest dry spell (CDD)
78 days
1952
27 days
71
Hottest day (TXx)
The hottest day of the year at Nowata, 1936 to 2007. The record is 47.8 C (118.0 F) in 1936, marked on the chart; the median year is 40.0 C (104.0 F).
Hottest day (TXx) at Nowata by year
Year
Hottest day (TXx)
1936
47.8 C (118.0 F)
1937
41.7 C (107.1 F)
1938
39.4 C (102.9 F)
1939
32.8 C (91.0 F)
1940
36.7 C (98.1 F)
1941
40.6 C (105.1 F)
1942
36.7 C (98.1 F)
1943
43.3 C (109.9 F)
1944
40.0 C (104.0 F)
1945
38.9 C (102.0 F)
1946
42.2 C (108.0 F)
1947
44.4 C (111.9 F)
1948
36.7 C (98.1 F)
1949
38.9 C (102.0 F)
1950
36.1 C (97.0 F)
1951
43.3 C (109.9 F)
1952
42.2 C (108.0 F)
1953
40.6 C (105.1 F)
1954
47.2 C (117.0 F)
1955
41.1 C (106.0 F)
1956
45.6 C (114.1 F)
1957
41.7 C (107.1 F)
1958
37.8 C (100.0 F)
1959
37.2 C (99.0 F)
1960
38.3 C (100.9 F)
1961
37.2 C (99.0 F)
1962
41.1 C (106.0 F)
1963
42.2 C (108.0 F)
1964
43.9 C (111.0 F)
1965
41.1 C (106.0 F)
1966
42.8 C (109.0 F)
1967
37.8 C (100.0 F)
1968
39.4 C (102.9 F)
1969
41.1 C (106.0 F)
1970
44.4 C (111.9 F)
1971
39.4 C (102.9 F)
1972
40.0 C (104.0 F)
1973
36.7 C (98.1 F)
1974
43.9 C (111.0 F)
1975
38.9 C (102.0 F)
1976
39.4 C (102.9 F)
1977
43.9 C (111.0 F)
1978
41.7 C (107.1 F)
1979
37.8 C (100.0 F)
1980
44.4 C (111.9 F)
1981
41.1 C (106.0 F)
1982
39.4 C (102.9 F)
1983
41.1 C (106.0 F)
1984
41.7 C (107.1 F)
1985
41.7 C (107.1 F)
1986
41.7 C (107.1 F)
1987
38.3 C (100.9 F)
1988
40.0 C (104.0 F)
1989
36.1 C (97.0 F)
1990
38.9 C (102.0 F)
1991
40.0 C (104.0 F)
1992
35.6 C (96.1 F)
1993
38.9 C (102.0 F)
1994
37.8 C (100.0 F)
1995
38.3 C (100.9 F)
1996
43.3 C (109.9 F)
1997
37.2 C (99.0 F)
1999
40.6 C (105.1 F)
2000
42.2 C (108.0 F)
2001
38.3 C (100.9 F)
2002
37.2 C (99.0 F)
2003
40.6 C (105.1 F)
2004
35.0 C (95.0 F)
2005
35.0 C (95.0 F)
2006
42.8 C (109.0 F)
2007
39.4 C (102.9 F)
Coldest night (TNn)
The coldest night of the year at Nowata, 1936 to 2007. The record is -25.0 C (-13.0 F) in 1943, marked on the chart; the median year is -17.2 C (1.0 F).
Coldest night (TNn) at Nowata by year
Year
Coldest night (TNn)
1936
-6.1 C (21.0 F)
1937
-15.0 C (5.0 F)
1938
-13.3 C (8.1 F)
1939
-16.1 C (3.0 F)
1940
2.8 C (37.0 F)
1941
-11.7 C (10.9 F)
1942
-18.9 C (-2.0 F)
1943
-25.0 C (-13.0 F)
1944
-17.2 C (1.0 F)
1945
-21.1 C (-6.0 F)
1946
-14.4 C (6.1 F)
1947
-23.3 C (-9.9 F)
1948
-20.0 C (-4.0 F)
1949
-25.0 C (-13.0 F)
1950
-19.4 C (-2.9 F)
1951
-21.7 C (-7.1 F)
1952
-12.2 C (10.0 F)
1953
-16.1 C (3.0 F)
1954
-17.2 C (1.0 F)
1955
-15.0 C (5.0 F)
1956
-15.0 C (5.0 F)
1957
-13.3 C (8.1 F)
1958
-16.1 C (3.0 F)
1959
-22.8 C (-9.0 F)
1960
-16.1 C (3.0 F)
1961
-17.2 C (1.0 F)
1962
-18.3 C (-0.9 F)
1963
-19.4 C (-2.9 F)
1964
-17.8 C (0.0 F)
1965
-14.4 C (6.1 F)
1966
-20.0 C (-4.0 F)
1967
-15.6 C (3.9 F)
1968
-19.4 C (-2.9 F)
1969
-15.0 C (5.0 F)
1970
-17.8 C (0.0 F)
1971
-17.2 C (1.0 F)
1972
-17.8 C (0.0 F)
1973
-17.8 C (0.0 F)
1974
-17.2 C (1.0 F)
1975
-15.0 C (5.0 F)
1976
-19.4 C (-2.9 F)
1977
-23.3 C (-9.9 F)
1978
-20.6 C (-5.1 F)
1979
-21.7 C (-7.1 F)
1980
-16.7 C (1.9 F)
1981
-20.6 C (-5.1 F)
1982
-21.1 C (-6.0 F)
1983
-21.7 C (-7.1 F)
1984
-23.9 C (-11.0 F)
1985
-22.2 C (-8.0 F)
1986
-14.4 C (6.1 F)
1987
-15.6 C (3.9 F)
1988
-21.1 C (-6.0 F)
1989
-25.0 C (-13.0 F)
1990
-17.2 C (1.0 F)
1991
-11.7 C (10.9 F)
1992
-11.1 C (12.0 F)
1993
-17.8 C (0.0 F)
1994
-13.9 C (7.0 F)
1995
-15.0 C (5.0 F)
1996
-22.8 C (-9.0 F)
1997
-17.2 C (1.0 F)
1999
-10.0 C (14.0 F)
2000
-19.4 C (-2.9 F)
2001
-18.9 C (-2.0 F)
2002
-13.9 C (7.0 F)
2003
-13.3 C (8.1 F)
2004
-15.0 C (5.0 F)
2005
-19.4 C (-2.9 F)
2006
-15.6 C (3.9 F)
2007
-13.9 C (7.0 F)
Wettest day (Rx1day)
The wettest day of the year at Nowata, 1936 to 2007. The record is 196.3 mm (7.7 in) in 1961, marked on the chart; the median year is 74.2 mm (2.9 in).
Wettest day (Rx1day) at Nowata by year
Year
Wettest day (Rx1day)
1936
70.1 mm (2.8 in)
1937
70.9 mm (2.8 in)
1938
75.2 mm (3.0 in)
1939
63.5 mm (2.5 in)
1940
25.1 mm (1.0 in)
1941
111.8 mm (4.4 in)
1942
112.5 mm (4.4 in)
1943
109.7 mm (4.3 in)
1944
113.5 mm (4.5 in)
1945
133.1 mm (5.2 in)
1946
88.9 mm (3.5 in)
1947
62.2 mm (2.4 in)
1948
127.8 mm (5.0 in)
1949
68.6 mm (2.7 in)
1950
56.6 mm (2.2 in)
1951
108.0 mm (4.3 in)
1952
96.8 mm (3.8 in)
1953
49.5 mm (1.9 in)
1954
56.6 mm (2.2 in)
1955
70.4 mm (2.8 in)
1956
49.3 mm (1.9 in)
1957
124.5 mm (4.9 in)
1958
65.5 mm (2.6 in)
1959
96.3 mm (3.8 in)
1960
74.9 mm (2.9 in)
1961
196.3 mm (7.7 in)
1962
66.8 mm (2.6 in)
1963
43.9 mm (1.7 in)
1964
76.7 mm (3.0 in)
1965
79.2 mm (3.1 in)
1966
66.3 mm (2.6 in)
1967
74.7 mm (2.9 in)
1968
113.3 mm (4.5 in)
1969
105.7 mm (4.2 in)
1970
80.0 mm (3.1 in)
1971
71.4 mm (2.8 in)
1972
113.0 mm (4.4 in)
1973
63.5 mm (2.5 in)
1974
103.1 mm (4.1 in)
1975
61.0 mm (2.4 in)
1976
53.8 mm (2.1 in)
1977
74.7 mm (2.9 in)
1978
64.5 mm (2.5 in)
1979
113.3 mm (4.5 in)
1980
48.0 mm (1.9 in)
1981
81.3 mm (3.2 in)
1982
88.9 mm (3.5 in)
1983
96.5 mm (3.8 in)
1984
46.5 mm (1.8 in)
1985
142.2 mm (5.6 in)
1986
165.1 mm (6.5 in)
1987
78.7 mm (3.1 in)
1988
91.4 mm (3.6 in)
1989
55.9 mm (2.2 in)
1990
72.4 mm (2.9 in)
1991
49.5 mm (1.9 in)
1992
53.3 mm (2.1 in)
1993
52.1 mm (2.1 in)
1994
74.2 mm (2.9 in)
1995
93.0 mm (3.7 in)
1996
93.5 mm (3.7 in)
1997
54.1 mm (2.1 in)
1999
76.7 mm (3.0 in)
2000
82.6 mm (3.3 in)
2001
57.2 mm (2.3 in)
2002
53.3 mm (2.1 in)
2003
64.3 mm (2.5 in)
2004
64.8 mm (2.6 in)
2005
38.1 mm (1.5 in)
2006
71.1 mm (2.8 in)
2007
57.2 mm (2.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Nowata, 1936 to 2007. The record is 287.2 mm (11.3 in) in 1943, marked on the chart; the median year is 114.3 mm (4.5 in).
Wettest five days (Rx5day) at Nowata by year
Year
Wettest five days (Rx5day)
1936
144.7 mm (5.7 in)
1937
88.2 mm (3.5 in)
1938
108.2 mm (4.3 in)
1939
123.7 mm (4.9 in)
1940
64.6 mm (2.5 in)
1941
213.4 mm (8.4 in)
1942
126.3 mm (5.0 in)
1943
287.2 mm (11.3 in)
1944
172.4 mm (6.8 in)
1945
181.2 mm (7.1 in)
1946
115.3 mm (4.5 in)
1947
85.6 mm (3.4 in)
1948
198.4 mm (7.8 in)
1949
122.6 mm (4.8 in)
1950
87.5 mm (3.4 in)
1951
117.1 mm (4.6 in)
1952
100.1 mm (3.9 in)
1953
57.6 mm (2.3 in)
1954
128.2 mm (5.0 in)
1955
119.7 mm (4.7 in)
1956
56.9 mm (2.2 in)
1957
154.2 mm (6.1 in)
1958
88.9 mm (3.5 in)
1959
214.1 mm (8.4 in)
1960
113.0 mm (4.4 in)
1961
228.1 mm (9.0 in)
1962
127.2 mm (5.0 in)
1963
71.4 mm (2.8 in)
1964
114.3 mm (4.5 in)
1965
146.8 mm (5.8 in)
1966
69.1 mm (2.7 in)
1967
78.8 mm (3.1 in)
1968
137.5 mm (5.4 in)
1969
167.4 mm (6.6 in)
1970
93.2 mm (3.7 in)
1971
81.3 mm (3.2 in)
1972
120.4 mm (4.7 in)
1973
121.1 mm (4.8 in)
1974
186.7 mm (7.4 in)
1975
74.5 mm (2.9 in)
1976
85.8 mm (3.4 in)
1977
94.2 mm (3.7 in)
1978
101.6 mm (4.0 in)
1979
138.4 mm (5.4 in)
1980
75.4 mm (3.0 in)
1981
99.6 mm (3.9 in)
1982
94.2 mm (3.7 in)
1983
174.0 mm (6.9 in)
1984
95.8 mm (3.8 in)
1985
181.4 mm (7.1 in)
1986
221.9 mm (8.7 in)
1987
88.9 mm (3.5 in)
1988
195.6 mm (7.7 in)
1989
108.5 mm (4.3 in)
1990
127.0 mm (5.0 in)
1991
153.1 mm (6.0 in)
1992
94.0 mm (3.7 in)
1993
112.1 mm (4.4 in)
1994
115.9 mm (4.6 in)
1995
154.7 mm (6.1 in)
1996
115.8 mm (4.6 in)
1997
74.1 mm (2.9 in)
1999
161.0 mm (6.3 in)
2000
110.6 mm (4.4 in)
2001
76.5 mm (3.0 in)
2002
100.3 mm (3.9 in)
2003
165.9 mm (6.5 in)
2004
95.2 mm (3.7 in)
2005
82.8 mm (3.3 in)
2006
111.8 mm (4.4 in)
2007
101.7 mm (4.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Nowata, 1936 to 2007. The record is 78 days in 1952, marked on the chart; the median year is 27 days.
Longest dry spell (CDD) at Nowata by year
Year
Longest dry spell (CDD)
1936
35 days
1937
26 days
1938
27 days
1939
19 days
1940
18 days
1941
19 days
1942
25 days
1943
42 days
1944
26 days
1945
49 days
1946
34 days
1947
24 days
1948
26 days
1949
26 days
1950
58 days
1951
16 days
1952
78 days
1953
22 days
1954
36 days
1955
66 days
1956
36 days
1957
46 days
1958
26 days
1959
28 days
1960
20 days
1961
21 days
1962
25 days
1963
36 days
1964
28 days
1965
51 days
1966
23 days
1967
26 days
1968
18 days
1969
22 days
1970
26 days
1971
40 days
1972
37 days
1973
19 days
1974
45 days
1975
19 days
1976
24 days
1977
25 days
1978
22 days
1979
32 days
1980
34 days
1981
28 days
1982
29 days
1983
22 days
1984
28 days
1985
24 days
1986
33 days
1987
21 days
1988
33 days
1989
34 days
1990
28 days
1991
30 days
1992
21 days
1993
20 days
1994
28 days
1995
37 days
1996
41 days
1997
22 days
1999
30 days
2000
38 days
2001
27 days
2002
28 days
2003
22 days
2004
24 days
2005
23 days
2006
34 days
2007
27 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
52 years with a frost
Across 52 years with a frost, the median last spring frost at Nowata falls on 9 April and the median first autumn frost on 29 October, which leaves a median of 203 days between them.
Fitted over all years, the growing season changes by +1.3 days per decade at this station.
Frost dates and growing season at Nowata
Measure
Median, all years
Earliest period
Recent period (1965 to 2000)
Recent against earliest
Fitted trend
Last spring frost
9 April
n/a
6 April
n/a
-1.2 days per decade
First autumn frost
29 October
n/a
31 October
n/a
0.0 days per decade
Growing days
203 days
n/a
209 days
n/a
+1.3 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
59 years, 1937 to 2000
A day with at least 79.3 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 187.2 mm (7.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Nowata: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
79.3 mm (3.1 in)
5 years
106.1 mm (4.2 in)
10 years
124.6 mm (4.9 in)
25 years
149.0 mm (5.9 in)
50 years
167.9 mm (6.6 in)
100 years
187.2 mm (7.4 in)
Longer than the 59 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, 59 years of values from 1937 to 2000.
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: 196.3 mm (7.7 in) in 1961; 165.1 mm (6.5 in) in 1986; 142.2 mm (5.6 in) in 1985.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Nowata standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Nowata 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.