Record envelope, standing records and threshold days for Oskaloosa 4 NE (USC00146100), Kansas, United States, with 54 years of record.
Key Facts for Oskaloosa 4 NE
Oskaloosa 4 NE (USC00146100) is a weather station in Kansas, United States at 39.24 latitude and -95.27 longitude, 338 m (1,109 ft) above sea level.
The station reports from 1958 to 2011, 54 years of record.
1,464 records set at Oskaloosa 4 NE still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Oskaloosa 4 NE set a daily record low maximum temperature of -8.9 C (16.0 F) on 24 January 2011.
About the Station
Location: Kansas, United States, 39.24 latitude, -95.27 longitude.
Elevation: 338 m (1,109 ft).
Period of record: 1958 to 2011, 54 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 Oskaloosa 4 NE. 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 Oskaloosa 4 NE, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
22.8 C (73.0 F)
-28.9 C (-20.0 F)
n/a
n/a
Feb
27.8 C (82.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Mar
30.6 C (87.1 F)
-23.9 C (-11.0 F)
n/a
n/a
Apr
33.3 C (91.9 F)
-12.2 C (10.0 F)
n/a
n/a
May
34.4 C (93.9 F)
-2.2 C (28.0 F)
n/a
n/a
Jun
42.8 C (109.0 F)
6.1 C (43.0 F)
n/a
n/a
Jul
43.3 C (109.9 F)
8.9 C (48.0 F)
n/a
n/a
Aug
42.2 C (108.0 F)
5.6 C (42.1 F)
n/a
n/a
Sep
42.2 C (108.0 F)
-1.7 C (28.9 F)
n/a
n/a
Oct
36.1 C (97.0 F)
-8.9 C (16.0 F)
n/a
n/a
Nov
28.9 C (84.0 F)
-18.3 C (-0.9 F)
n/a
n/a
Dec
21.1 C (70.0 F)
-31.1 C (-24.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Oskaloosa 4 NE still stand. 1980 holds the most, with 61.
Standing records at Oskaloosa 4 NE by the year they were set
Year set
Standing records
1958
1
1959
28
1960
38
1961
23
1962
39
1963
51
1964
37
1965
31
1966
34
1967
41
1968
32
1969
16
1970
41
1971
32
1972
34
1973
11
1974
32
1975
27
1976
28
1977
23
1978
34
1979
23
1980
61
1981
25
1982
15
1983
45
1984
29
1985
26
1986
19
1987
16
1988
29
1989
42
1990
33
1991
41
1992
21
1993
15
1994
14
1995
18
1996
28
1997
27
1998
27
1999
28
2000
34
2001
9
2002
27
2003
22
2004
22
2005
19
2006
22
2007
28
2008
13
2009
25
2010
26
2011
2
All-Time Record Progression
4 new records
4 all-time records were set at Oskaloosa 4 NE between 22 December 1989 and 2 October 2005. Each dot is a new record.
When Oskaloosa 4 NE set new all-time records
Date
Kind
Detail
1989-12-22
Record low maximum temperature
Record low maximum temperature -22.2 C (-8.0 F)
1989-12-22
Record low minimum temperature
Record low minimum temperature -31.1 C (-24.0 F)
2003-07-10
Record high minimum temperature
Record high minimum temperature 29.4 C (84.9 F)
2005-10-02
Record daily precipitation
Record daily precipitation 248.9 mm (9.8 in)
Wettest Day of Each Month
Oct: 248.9 mm (9.8 in)
The wettest day on record for each calendar month at Oskaloosa 4 NE. The most was 248.9 mm (9.8 in) on 2 October 2005.
Record daily precipitation for each month at Oskaloosa 4 NE
Month
Record daily precipitation (mm)
Date
Jan
44.5 mm (1.8 in)
31 January 1988
Feb
52.3 mm (2.1 in)
21 February 1997
Mar
60.5 mm (2.4 in)
15 March 2001
Apr
82.3 mm (3.2 in)
5 April 1969
May
113.0 mm (4.4 in)
27 May 1985
Jun
116.8 mm (4.6 in)
13 June 1966
Jul
165.6 mm (6.5 in)
27 July 1981
Aug
114.3 mm (4.5 in)
18 August 1960
Sep
133.9 mm (5.3 in)
9 September 1989
Oct
248.9 mm (9.8 in)
2 October 2005
Nov
103.9 mm (4.1 in)
16 November 1964
Dec
50.8 mm (2.0 in)
9 December 1997
Period of Record Coverage
1958 to 2011
Complete yearUnder 90 percent of days
54 years of record at Oskaloosa 4 NE, 1958 to 2011. 5 years have data for under 90 percent of days and are left out of rankings: 1958, 1972, 2006, 2009, 2011.
Cooler than the station meanWarmer than the station mean
One stripe for each of 47 complete years at Oskaloosa 4 NE, 1959 to 2010. Blue stripes are years cooler than the station's own mean of 12.5 C (54.5 F); red stripes are warmer. The coolest year was 2008, at 10.4 C (50.7 F), and the warmest was 1998, at 13.7 C (56.6 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Oskaloosa 4 NE as warming stripes, 1959 to 2010
Year
Annual mean temperature
Difference from the station mean
1959
12.5 C
-0.07 C
1960
12.0 C
-0.56 C
1961
12.0 C
-0.55 C
1962
12.5 C
-0.02 C
1963
13.3 C
+0.77 C
1964
13.1 C
+0.62 C
1965
12.9 C
+0.36 C
1966
12.3 C
-0.21 C
1967
12.3 C
-0.21 C
1968
12.3 C
-0.26 C
1969
11.9 C
-0.62 C
1970
12.7 C
+0.22 C
1971
12.8 C
+0.31 C
1973
13.0 C
+0.44 C
1974
12.8 C
+0.31 C
1975
12.9 C
+0.35 C
1976
12.8 C
+0.30 C
1977
13.1 C
+0.54 C
1978
11.6 C
-0.96 C
1979
11.2 C
-1.34 C
1980
13.0 C
+0.43 C
1981
13.2 C
+0.68 C
1982
11.9 C
-0.64 C
1983
12.3 C
-0.20 C
1984
12.7 C
+0.16 C
1985
11.4 C
-1.09 C
1986
13.2 C
+0.70 C
1987
13.6 C
+1.04 C
1988
13.0 C
+0.50 C
1989
11.9 C
-0.58 C
1991
13.4 C
+0.84 C
1992
12.4 C
-0.13 C
1993
11.3 C
-1.25 C
1994
12.6 C
+0.11 C
1995
12.1 C
-0.43 C
1996
11.4 C
-1.09 C
1997
12.0 C
-0.55 C
1998
13.7 C
+1.15 C
1999
13.4 C
+0.89 C
2000
13.0 C
+0.49 C
2001
13.2 C
+0.71 C
2002
13.2 C
+0.71 C
2003
12.7 C
+0.18 C
2004
12.6 C
+0.09 C
2005
12.7 C
+0.13 C
2008
10.4 C
-2.14 C
2010
12.2 C
-0.34 C
The fitted trend in annual mean temperature here over 1959 to 2010 is -0.02 C (-0.16 to 0.12) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.03 F (-0.29 to 0.22) per decade. The slope is a straight line fitted to 47 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Oskaloosa 4 NE
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.02 C (-0.16 to 0.12) per decade
-0.03 F (-0.29 to 0.22) per decade
1959 to 2010
47
Not clearly different from zero
Mean daily maximum
-0.1 C (-0.2 to 0.1) per decade
-0.1 F (-0.4 to 0.2) per decade
1959 to 2010
47
Not clearly different from zero
Mean daily minimum
0.04 C (-0.11 to 0.19) per decade
0.1 F (-0.2 to 0.3) per decade
1959 to 2010
47
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
1958 to 2011
Yearly extremes at Oskaloosa 4 NE: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.3 C (109.9 F)
1980
37.2 C (99.0 F)
54
Coldest night (TNn)
-31.1 C (-24.0 F)
1989
-21.7 C (-7.1 F)
54
Wettest day (Rx1day)
248.9 mm (9.8 in)
2005
74.7 mm (2.9 in)
54
Wettest five days (Rx5day)
251.4 mm (9.9 in)
2005
116.4 mm (4.6 in)
53
Longest dry spell (CDD)
46 days
2002
27 days
53
Hottest day (TXx)
The hottest day of the year at Oskaloosa 4 NE, 1958 to 2011. The record is 43.3 C (109.9 F) in 1980, marked on the chart; the median year is 37.2 C (99.0 F).
Hottest day (TXx) at Oskaloosa 4 NE by year
Year
Hottest day (TXx)
1958
15.0 C (59.0 F)
1959
37.2 C (99.0 F)
1960
37.2 C (99.0 F)
1961
36.7 C (98.1 F)
1962
37.2 C (99.0 F)
1963
38.3 C (100.9 F)
1964
40.6 C (105.1 F)
1965
35.6 C (96.1 F)
1966
37.8 C (100.0 F)
1967
36.7 C (98.1 F)
1968
35.6 C (96.1 F)
1969
36.7 C (98.1 F)
1970
40.6 C (105.1 F)
1971
38.3 C (100.9 F)
1972
36.7 C (98.1 F)
1973
36.7 C (98.1 F)
1974
41.1 C (106.0 F)
1975
40.6 C (105.1 F)
1976
38.9 C (102.0 F)
1977
38.3 C (100.9 F)
1978
38.9 C (102.0 F)
1979
35.6 C (96.1 F)
1980
43.3 C (109.9 F)
1981
36.7 C (98.1 F)
1982
38.3 C (100.9 F)
1983
41.1 C (106.0 F)
1984
42.2 C (108.0 F)
1985
36.7 C (98.1 F)
1986
36.7 C (98.1 F)
1987
38.9 C (102.0 F)
1988
37.8 C (100.0 F)
1989
36.7 C (98.1 F)
1990
36.7 C (98.1 F)
1991
38.3 C (100.9 F)
1992
32.8 C (91.0 F)
1993
35.0 C (95.0 F)
1994
35.0 C (95.0 F)
1995
37.8 C (100.0 F)
1996
35.6 C (96.1 F)
1997
36.1 C (97.0 F)
1998
35.6 C (96.1 F)
1999
38.9 C (102.0 F)
2000
42.2 C (108.0 F)
2001
37.8 C (100.0 F)
2002
40.0 C (104.0 F)
2003
42.2 C (108.0 F)
2004
35.6 C (96.1 F)
2005
37.2 C (99.0 F)
2006
41.7 C (107.1 F)
2007
34.4 C (93.9 F)
2008
37.2 C (99.0 F)
2009
37.8 C (100.0 F)
2010
40.6 C (105.1 F)
2011
10.6 C (51.1 F)
Coldest night (TNn)
The coldest night of the year at Oskaloosa 4 NE, 1958 to 2011. The record is -31.1 C (-24.0 F) in 1989, marked on the chart; the median year is -21.7 C (-7.1 F).
Coldest night (TNn) at Oskaloosa 4 NE by year
Year
Coldest night (TNn)
1958
-17.2 C (1.0 F)
1959
-25.6 C (-14.1 F)
1960
-20.6 C (-5.1 F)
1961
-22.8 C (-9.0 F)
1962
-23.3 C (-9.9 F)
1963
-25.0 C (-13.0 F)
1964
-21.1 C (-6.0 F)
1965
-20.0 C (-4.0 F)
1966
-24.4 C (-11.9 F)
1967
-17.8 C (0.0 F)
1968
-25.6 C (-14.1 F)
1969
-21.1 C (-6.0 F)
1970
-21.7 C (-7.1 F)
1971
-25.6 C (-14.1 F)
1972
-25.6 C (-14.1 F)
1973
-22.8 C (-9.0 F)
1974
-26.7 C (-16.1 F)
1975
-18.9 C (-2.0 F)
1976
-23.3 C (-9.9 F)
1977
-25.0 C (-13.0 F)
1978
-25.0 C (-13.0 F)
1979
-25.6 C (-14.1 F)
1980
-23.3 C (-9.9 F)
1981
-24.4 C (-11.9 F)
1982
-28.9 C (-20.0 F)
1983
-26.7 C (-16.1 F)
1984
-20.6 C (-5.1 F)
1985
-25.6 C (-14.1 F)
1986
-18.3 C (-0.9 F)
1987
-14.4 C (6.1 F)
1988
-22.8 C (-9.0 F)
1989
-31.1 C (-24.0 F)
1990
-21.7 C (-7.1 F)
1991
-21.1 C (-6.0 F)
1992
-17.2 C (1.0 F)
1993
-19.4 C (-2.9 F)
1994
-19.4 C (-2.9 F)
1995
-19.4 C (-2.9 F)
1996
-26.1 C (-15.0 F)
1997
-23.3 C (-9.9 F)
1998
-20.6 C (-5.1 F)
1999
-19.4 C (-2.9 F)
2000
-22.8 C (-9.0 F)
2001
-21.1 C (-6.0 F)
2002
-17.2 C (1.0 F)
2003
-22.8 C (-9.0 F)
2004
-26.1 C (-15.0 F)
2005
-20.0 C (-4.0 F)
2006
-17.8 C (0.0 F)
2007
-19.4 C (-2.9 F)
2008
-20.6 C (-5.1 F)
2009
-20.6 C (-5.1 F)
2010
-21.1 C (-6.0 F)
2011
-19.4 C (-2.9 F)
Wettest day (Rx1day)
The wettest day of the year at Oskaloosa 4 NE, 1958 to 2011. The record is 248.9 mm (9.8 in) in 2005, marked on the chart; the median year is 74.7 mm (2.9 in).
Wettest day (Rx1day) at Oskaloosa 4 NE by year
Year
Wettest day (Rx1day)
1958
2.5 mm (0.10 in)
1959
62.7 mm (2.5 in)
1960
114.3 mm (4.5 in)
1961
139.7 mm (5.5 in)
1962
127.8 mm (5.0 in)
1963
48.8 mm (1.9 in)
1964
103.9 mm (4.1 in)
1965
88.4 mm (3.5 in)
1966
116.8 mm (4.6 in)
1967
73.2 mm (2.9 in)
1968
84.1 mm (3.3 in)
1969
82.3 mm (3.2 in)
1970
104.1 mm (4.1 in)
1971
34.3 mm (1.4 in)
1972
91.4 mm (3.6 in)
1973
98.0 mm (3.9 in)
1974
57.7 mm (2.3 in)
1975
70.4 mm (2.8 in)
1976
32.3 mm (1.3 in)
1977
118.6 mm (4.7 in)
1978
74.9 mm (2.9 in)
1979
63.5 mm (2.5 in)
1980
63.5 mm (2.5 in)
1981
165.6 mm (6.5 in)
1982
74.4 mm (2.9 in)
1983
50.8 mm (2.0 in)
1984
80.0 mm (3.1 in)
1985
113.0 mm (4.4 in)
1986
83.1 mm (3.3 in)
1987
58.4 mm (2.3 in)
1988
47.2 mm (1.9 in)
1989
133.9 mm (5.3 in)
1990
63.0 mm (2.5 in)
1991
73.9 mm (2.9 in)
1992
42.7 mm (1.7 in)
1993
111.5 mm (4.4 in)
1994
56.1 mm (2.2 in)
1995
61.7 mm (2.4 in)
1996
97.3 mm (3.8 in)
1997
63.2 mm (2.5 in)
1998
94.0 mm (3.7 in)
1999
65.8 mm (2.6 in)
2000
83.8 mm (3.3 in)
2001
93.2 mm (3.7 in)
2002
64.0 mm (2.5 in)
2003
109.2 mm (4.3 in)
2004
64.8 mm (2.6 in)
2005
248.9 mm (9.8 in)
2006
64.0 mm (2.5 in)
2007
97.0 mm (3.8 in)
2008
96.5 mm (3.8 in)
2009
64.8 mm (2.6 in)
2010
62.2 mm (2.4 in)
2011
12.7 mm (0.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Oskaloosa 4 NE, 1958 to 2011. The record is 251.4 mm (9.9 in) in 2005, marked on the chart; the median year is 116.4 mm (4.6 in).
Wettest five days (Rx5day) at Oskaloosa 4 NE by year
Year
Wettest five days (Rx5day)
1958
2.5 mm (0.10 in)
1959
110.7 mm (4.4 in)
1960
114.3 mm (4.5 in)
1961
197.9 mm (7.8 in)
1962
135.4 mm (5.3 in)
1963
73.1 mm (2.9 in)
1964
128.1 mm (5.0 in)
1965
167.9 mm (6.6 in)
1966
154.9 mm (6.1 in)
1967
152.9 mm (6.0 in)
1968
120.4 mm (4.7 in)
1969
127.0 mm (5.0 in)
1970
138.6 mm (5.5 in)
1971
69.6 mm (2.7 in)
1972
109.4 mm (4.3 in)
1973
164.9 mm (6.5 in)
1974
101.5 mm (4.0 in)
1975
70.4 mm (2.8 in)
1976
83.6 mm (3.3 in)
1977
150.6 mm (5.9 in)
1978
119.7 mm (4.7 in)
1979
91.7 mm (3.6 in)
1980
93.3 mm (3.7 in)
1981
211.3 mm (8.3 in)
1982
109.0 mm (4.3 in)
1983
97.3 mm (3.8 in)
1984
89.1 mm (3.5 in)
1985
138.9 mm (5.5 in)
1986
158.9 mm (6.3 in)
1987
92.4 mm (3.6 in)
1988
54.4 mm (2.1 in)
1989
205.1 mm (8.1 in)
1990
149.6 mm (5.9 in)
1991
82.8 mm (3.3 in)
1992
78.5 mm (3.1 in)
1993
177.0 mm (7.0 in)
1994
69.3 mm (2.7 in)
1995
91.2 mm (3.6 in)
1996
145.3 mm (5.7 in)
1997
71.3 mm (2.8 in)
1998
167.9 mm (6.6 in)
1999
99.8 mm (3.9 in)
2000
111.7 mm (4.4 in)
2001
134.4 mm (5.3 in)
2002
87.6 mm (3.4 in)
2003
129.0 mm (5.1 in)
2004
143.6 mm (5.7 in)
2005
251.4 mm (9.9 in)
2006
123.7 mm (4.9 in)
2007
167.4 mm (6.6 in)
2008
113.3 mm (4.5 in)
2009
116.4 mm (4.6 in)
2010
96.8 mm (3.8 in)
2011
n/a
Longest dry spell (CDD)
The longest dry spell of the year at Oskaloosa 4 NE, 1958 to 2011. The record is 46 days in 2002, marked on the chart; the median year is 27 days.
Longest dry spell (CDD) at Oskaloosa 4 NE by year
Year
Longest dry spell (CDD)
1958
30 days
1959
35 days
1960
25 days
1961
36 days
1962
21 days
1963
23 days
1964
20 days
1965
22 days
1966
45 days
1967
30 days
1968
19 days
1969
35 days
1970
44 days
1971
32 days
1972
29 days
1973
23 days
1974
22 days
1975
23 days
1976
27 days
1977
26 days
1978
27 days
1979
40 days
1980
26 days
1981
31 days
1982
19 days
1983
33 days
1984
32 days
1985
19 days
1986
33 days
1987
29 days
1988
35 days
1989
45 days
1990
21 days
1991
24 days
1992
19 days
1993
23 days
1994
23 days
1995
30 days
1996
38 days
1997
27 days
1998
19 days
1999
29 days
2000
33 days
2001
39 days
2002
46 days
2003
24 days
2004
25 days
2005
16 days
2006
31 days
2007
22 days
2008
17 days
2009
16 days
2010
35 days
2011
n/a
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
47 years with a frost
Across 47 years with a frost, the median last spring frost at Oskaloosa 4 NE falls on 17 April and the median first autumn frost on 17 October, which leaves a median of 183 days between them.
Fitted over all years, the growing season changes by +0.2 days per decade at this station.
Frost dates and growing season at Oskaloosa 4 NE
Measure
Median, all years
Earliest period
Recent period (1977 to 2010)
Recent against earliest
Fitted trend
Last spring frost
17 April
n/a
17 April
n/a
-0.8 days per decade
First autumn frost
17 October
n/a
16 October
n/a
-0.6 days per decade
Growing days
183 days
n/a
183 days
n/a
+0.2 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
52 years, 1959 to 2010
A day with at least 77.7 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 209.4 mm (8.2 in) of rain is expected about once in 100 years.
Rainfall return levels at Oskaloosa 4 NE: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
77.7 mm (3.1 in)
5 years
107.5 mm (4.2 in)
10 years
129.2 mm (5.1 in)
25 years
159.2 mm (6.3 in)
50 years
183.5 mm (7.2 in)
100 years
209.4 mm (8.2 in)
Longer than the 52 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, 52 years of values from 1959 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: 248.9 mm (9.8 in) in 2005; 165.6 mm (6.5 in) in 1981; 139.7 mm (5.5 in) in 1961.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Oskaloosa 4 NE, at 1986. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1986 ran 0.2 C (0.4 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Oskaloosa 4 NE, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1986
-0.2
-0.4
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 Oskaloosa 4 NE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Oskaloosa 4 NE 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.