Record envelope, standing records and threshold days for Oconto (USC00256167), Nebraska, United States, with 69 years of record.
Key Facts for Oconto
Oconto (USC00256167) is a weather station in Nebraska, United States at 41.14 latitude and -99.76 longitude, 786 m (2,580 ft) above sea level.
The station reports from 1948 to 2016, 69 years of record.
1,464 records set at Oconto still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Oconto set a daily record low maximum temperature of 10.6 C (51.1 F) on 16 May 2016.
About the Station
Location: Nebraska, United States, 41.14 latitude, -99.76 longitude.
Elevation: 786 m (2,580 ft).
Period of record: 1948 to 2016, 69 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 Oconto. 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 Oconto, 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)
-34.4 C (-29.9 F)
n/a
n/a
Feb
25.6 C (78.1 F)
-32.8 C (-27.0 F)
n/a
n/a
Mar
32.2 C (90.0 F)
-30.6 C (-23.1 F)
n/a
n/a
Apr
34.4 C (93.9 F)
-13.9 C (7.0 F)
n/a
n/a
May
37.8 C (100.0 F)
-7.8 C (18.0 F)
n/a
n/a
Jun
41.1 C (106.0 F)
0.6 C (33.1 F)
n/a
n/a
Jul
42.8 C (109.0 F)
3.9 C (39.0 F)
n/a
n/a
Aug
41.1 C (106.0 F)
2.8 C (37.0 F)
n/a
n/a
Sep
38.9 C (102.0 F)
-6.7 C (19.9 F)
n/a
n/a
Oct
34.4 C (93.9 F)
-15.6 C (3.9 F)
n/a
n/a
Nov
28.3 C (82.9 F)
-26.1 C (-15.0 F)
n/a
n/a
Dec
23.3 C (73.9 F)
-33.9 C (-29.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Oconto still stand. 1989 holds the most, with 65.
Standing records at Oconto by the year they were set
Year set
Standing records
1962
18
1963
42
1964
28
1965
34
1966
27
1967
37
1968
32
1969
33
1970
26
1971
23
1972
36
1973
12
1974
25
1975
23
1976
24
1977
19
1978
28
1979
25
1980
42
1981
19
1982
18
1983
21
1984
10
1985
38
1986
23
1987
27
1988
41
1989
65
1990
30
1991
35
1992
30
1993
23
1994
28
1995
26
1996
37
1997
29
1998
31
1999
19
2000
40
2001
12
2002
39
2003
28
2004
32
2005
28
2006
31
2007
18
2008
9
2009
21
2010
8
2011
16
2012
26
2013
16
2014
23
2015
28
2016
5
All-Time Record Progression
4 new records
4 all-time records were set at Oconto between 30 June 1988 and 23 July 2012. Each dot is a new record.
When Oconto set new all-time records
Date
Kind
Detail
1988-06-30
Record daily precipitation
Record daily precipitation 113.8 mm (4.5 in)
1994-04-12
Record daily snowfall
Record daily snowfall 26.7 cm (10.5 in)
2004-11-29
Record daily snowfall
Record daily snowfall 38.1 cm (15.0 in)
2012-07-23
Record high maximum temperature
Record high maximum temperature 42.8 C (109.0 F)
Wettest Day of Each Month
Jun: 113.8 mm (4.5 in)
The wettest day on record for each calendar month at Oconto. The most was 113.8 mm (4.5 in) on 30 June 1988.
Record daily precipitation for each month at Oconto
Month
Record daily precipitation (mm)
Date
Jan
31.0 mm (1.2 in)
14 January 1960
Feb
25.4 mm (1.0 in)
26 February 1958
Mar
55.6 mm (2.2 in)
17 March 1987
Apr
76.2 mm (3.0 in)
17 April 2016
May
69.9 mm (2.8 in)
27 May 1996
Jun
113.8 mm (4.5 in)
30 June 1988
Jul
89.4 mm (3.5 in)
18 July 1987
Aug
89.9 mm (3.5 in)
24 August 2002
Sep
86.6 mm (3.4 in)
4 September 1989
Oct
52.8 mm (2.1 in)
28 October 2000
Nov
46.2 mm (1.8 in)
30 November 1981
Dec
32.5 mm (1.3 in)
21 December 2006
Period of Record Coverage
1962 to 2016
Complete yearUnder 90 percent of days
55 years of record at Oconto, 1962 to 2016. 8 years have data for under 90 percent of days and are left out of rankings: 1962, 1983, 1984, 2001, 2003, 2008, 2012, 2016.
Cooler than the station meanWarmer than the station mean
One stripe for each of 39 complete years at Oconto, 1963 to 2015. Blue stripes are years cooler than the station's own mean of 9.7 C (49.5 F); red stripes are warmer. The coolest year was 1993, at 8.1 C (46.5 F), and the warmest was 2006, at 10.7 C (51.3 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Oconto as warming stripes, 1963 to 2015
Year
Annual mean temperature
Difference from the station mean
1963
10.4 C
+0.71 C
1964
9.9 C
+0.18 C
1965
9.4 C
-0.31 C
1966
9.3 C
-0.41 C
1967
9.7 C
-0.06 C
1968
9.8 C
+0.07 C
1969
9.0 C
-0.76 C
1970
9.7 C
+0.02 C
1971
9.7 C
-0.01 C
1972
9.0 C
-0.69 C
1973
9.7 C
-0.04 C
1974
10.6 C
+0.87 C
1976
10.0 C
+0.27 C
1977
10.7 C
+0.99 C
1978
8.5 C
-1.25 C
1982
9.1 C
-0.65 C
1986
10.5 C
+0.78 C
1987
10.5 C
+0.80 C
1988
10.0 C
+0.23 C
1989
8.7 C
-1.07 C
1990
10.0 C
+0.28 C
1991
10.3 C
+0.62 C
1992
9.5 C
-0.20 C
1993
8.1 C
-1.65 C
1994
9.8 C
+0.03 C
1995
9.4 C
-0.31 C
1996
8.3 C
-1.44 C
1997
9.7 C
-0.03 C
1998
10.5 C
+0.74 C
2000
10.2 C
+0.48 C
2002
10.4 C
+0.63 C
2004
9.9 C
+0.21 C
2005
10.5 C
+0.77 C
2006
10.7 C
+1.01 C
2007
9.7 C
+0.01 C
2010
9.5 C
-0.20 C
2011
9.2 C
-0.48 C
2014
9.0 C
-0.69 C
2015
10.4 C
+0.71 C
The fitted trend in annual mean temperature here over 1963 to 2015 is 0.03 C (-0.11 to 0.17) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.2 to 0.3) per decade. The slope is a straight line fitted to 39 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Oconto
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.03 C (-0.11 to 0.17) per decade
0.1 F (-0.2 to 0.3) per decade
1963 to 2015
39
Not clearly different from zero
Mean daily maximum
0.1 C (-0.1 to 0.3) per decade
0.2 F (-0.1 to 0.5) per decade
1963 to 2015
39
Not clearly different from zero
Mean daily minimum
-0.1 C (-0.2 to 0.1) per decade
-0.1 F (-0.4 to 0.2) per decade
1963 to 2015
39
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
1948 to 2016
Yearly extremes at Oconto: 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)
2012
38.3 C (100.9 F)
55
Coldest night (TNn)
-34.4 C (-29.9 F)
1988
-27.2 C (-17.0 F)
55
Wettest day (Rx1day)
113.8 mm (4.5 in)
1988
55.4 mm (2.2 in)
68
Wettest five days (Rx5day)
219.4 mm (8.6 in)
2010
72.1 mm (2.8 in)
68
Longest dry spell (CDD)
84 days
1999
40 days
68
Hottest day (TXx)
The hottest day of the year at Oconto, 1948 to 2016. The record is 42.8 C (109.0 F) in 2012, marked on the chart; the median year is 38.3 C (100.9 F).
Hottest day (TXx) at Oconto by year
Year
Hottest day (TXx)
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
n/a
1959
n/a
1960
n/a
1962
34.4 C (93.9 F)
1963
39.4 C (102.9 F)
1964
38.3 C (100.9 F)
1965
38.3 C (100.9 F)
1966
37.2 C (99.0 F)
1967
35.6 C (96.1 F)
1968
36.7 C (98.1 F)
1969
38.9 C (102.0 F)
1970
39.4 C (102.9 F)
1971
38.9 C (102.0 F)
1972
37.8 C (100.0 F)
1973
39.4 C (102.9 F)
1974
38.9 C (102.0 F)
1975
37.8 C (100.0 F)
1976
37.8 C (100.0 F)
1977
38.9 C (102.0 F)
1978
39.4 C (102.9 F)
1979
36.1 C (97.0 F)
1980
41.1 C (106.0 F)
1981
37.8 C (100.0 F)
1982
36.7 C (98.1 F)
1983
41.1 C (106.0 F)
1984
38.3 C (100.9 F)
1985
37.2 C (99.0 F)
1986
38.3 C (100.9 F)
1987
36.1 C (97.0 F)
1988
41.1 C (106.0 F)
1989
39.4 C (102.9 F)
1990
41.1 C (106.0 F)
1991
40.0 C (104.0 F)
1992
35.6 C (96.1 F)
1993
33.9 C (93.0 F)
1994
36.1 C (97.0 F)
1995
39.4 C (102.9 F)
1996
33.9 C (93.0 F)
1997
37.8 C (100.0 F)
1998
41.1 C (106.0 F)
1999
36.7 C (98.1 F)
2000
40.0 C (104.0 F)
2001
39.4 C (102.9 F)
2002
41.1 C (106.0 F)
2003
40.0 C (104.0 F)
2004
36.7 C (98.1 F)
2005
40.6 C (105.1 F)
2006
40.6 C (105.1 F)
2007
36.7 C (98.1 F)
2008
39.4 C (102.9 F)
2009
36.1 C (97.0 F)
2010
34.4 C (93.9 F)
2011
38.3 C (100.9 F)
2012
42.8 C (109.0 F)
2013
38.9 C (102.0 F)
2014
36.7 C (98.1 F)
2015
38.3 C (100.9 F)
2016
27.2 C (81.0 F)
Coldest night (TNn)
The coldest night of the year at Oconto, 1948 to 2016. The record is -34.4 C (-29.9 F) in 1988, marked on the chart; the median year is -27.2 C (-17.0 F).
Coldest night (TNn) at Oconto by year
Year
Coldest night (TNn)
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
n/a
1959
n/a
1960
n/a
1962
-21.7 C (-7.1 F)
1963
-30.6 C (-23.1 F)
1964
-26.1 C (-15.0 F)
1965
-27.2 C (-17.0 F)
1966
-26.1 C (-15.0 F)
1967
-30.6 C (-23.1 F)
1968
-28.9 C (-20.0 F)
1969
-26.1 C (-15.0 F)
1970
-23.9 C (-11.0 F)
1971
-27.2 C (-17.0 F)
1972
-27.8 C (-18.0 F)
1973
-23.9 C (-11.0 F)
1974
-30.0 C (-22.0 F)
1975
-25.0 C (-13.0 F)
1976
-26.1 C (-15.0 F)
1977
-25.0 C (-13.0 F)
1978
-27.2 C (-17.0 F)
1979
-26.7 C (-16.1 F)
1980
-27.2 C (-17.0 F)
1981
-27.8 C (-18.0 F)
1982
-29.4 C (-20.9 F)
1983
-16.1 C (3.0 F)
1984
-19.4 C (-2.9 F)
1985
-29.4 C (-20.9 F)
1986
-27.8 C (-18.0 F)
1987
-20.6 C (-5.1 F)
1988
-34.4 C (-29.9 F)
1989
-33.9 C (-29.0 F)
1990
-27.8 C (-18.0 F)
1991
-25.0 C (-13.0 F)
1992
-20.0 C (-4.0 F)
1993
-29.4 C (-20.9 F)
1994
-32.8 C (-27.0 F)
1995
-33.3 C (-27.9 F)
1996
-31.7 C (-25.1 F)
1997
-28.3 C (-18.9 F)
1998
-30.0 C (-22.0 F)
1999
-27.2 C (-17.0 F)
2000
-25.0 C (-13.0 F)
2001
-20.0 C (-4.0 F)
2002
-30.6 C (-23.1 F)
2003
-26.7 C (-16.1 F)
2004
-28.9 C (-20.0 F)
2005
-28.3 C (-18.9 F)
2006
-25.6 C (-14.1 F)
2007
-27.2 C (-17.0 F)
2008
-26.1 C (-15.0 F)
2009
-26.7 C (-16.1 F)
2010
-27.8 C (-18.0 F)
2011
-28.3 C (-18.9 F)
2012
-23.3 C (-9.9 F)
2013
-25.0 C (-13.0 F)
2014
-30.0 C (-22.0 F)
2015
-28.9 C (-20.0 F)
2016
-27.2 C (-17.0 F)
Wettest day (Rx1day)
The wettest day of the year at Oconto, 1948 to 2016. The record is 113.8 mm (4.5 in) in 1988, marked on the chart; the median year is 55.4 mm (2.2 in).
Wettest day (Rx1day) at Oconto by year
Year
Wettest day (Rx1day)
1948
25.1 mm (1.0 in)
1949
38.1 mm (1.5 in)
1950
58.9 mm (2.3 in)
1951
57.4 mm (2.3 in)
1952
40.4 mm (1.6 in)
1953
39.9 mm (1.6 in)
1954
36.3 mm (1.4 in)
1955
45.7 mm (1.8 in)
1956
25.4 mm (1.0 in)
1957
74.7 mm (2.9 in)
1958
54.6 mm (2.1 in)
1959
63.5 mm (2.5 in)
1960
31.0 mm (1.2 in)
1962
50.5 mm (2.0 in)
1963
41.9 mm (1.6 in)
1964
53.3 mm (2.1 in)
1965
58.4 mm (2.3 in)
1966
64.8 mm (2.6 in)
1967
57.7 mm (2.3 in)
1968
97.0 mm (3.8 in)
1969
41.9 mm (1.6 in)
1970
52.8 mm (2.1 in)
1971
62.2 mm (2.4 in)
1972
25.4 mm (1.0 in)
1973
59.7 mm (2.4 in)
1974
59.7 mm (2.4 in)
1975
96.8 mm (3.8 in)
1976
44.5 mm (1.8 in)
1977
57.2 mm (2.3 in)
1978
40.9 mm (1.6 in)
1979
31.8 mm (1.3 in)
1980
25.7 mm (1.0 in)
1981
63.5 mm (2.5 in)
1982
29.7 mm (1.2 in)
1983
51.6 mm (2.0 in)
1984
71.6 mm (2.8 in)
1985
47.5 mm (1.9 in)
1986
35.3 mm (1.4 in)
1987
96.3 mm (3.8 in)
1988
113.8 mm (4.5 in)
1989
86.6 mm (3.4 in)
1990
62.7 mm (2.5 in)
1991
54.4 mm (2.1 in)
1992
56.6 mm (2.2 in)
1993
63.5 mm (2.5 in)
1994
60.7 mm (2.4 in)
1995
50.5 mm (2.0 in)
1996
69.9 mm (2.8 in)
1997
49.8 mm (2.0 in)
1998
30.7 mm (1.2 in)
1999
32.8 mm (1.3 in)
2000
52.8 mm (2.1 in)
2001
41.1 mm (1.6 in)
2002
89.9 mm (3.5 in)
2003
67.3 mm (2.6 in)
2004
55.1 mm (2.2 in)
2005
55.6 mm (2.2 in)
2006
75.7 mm (3.0 in)
2007
61.0 mm (2.4 in)
2008
69.1 mm (2.7 in)
2009
40.1 mm (1.6 in)
2010
99.8 mm (3.9 in)
2011
47.0 mm (1.9 in)
2012
45.2 mm (1.8 in)
2013
55.6 mm (2.2 in)
2014
58.2 mm (2.3 in)
2015
57.2 mm (2.3 in)
2016
76.2 mm (3.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Oconto, 1948 to 2016. The record is 219.4 mm (8.6 in) in 2010, marked on the chart; the median year is 72.1 mm (2.8 in).
Wettest five days (Rx5day) at Oconto by year
Year
Wettest five days (Rx5day)
1948
26.2 mm (1.0 in)
1949
54.6 mm (2.1 in)
1950
67.0 mm (2.6 in)
1951
65.3 mm (2.6 in)
1952
75.2 mm (3.0 in)
1953
47.3 mm (1.9 in)
1954
67.0 mm (2.6 in)
1955
61.7 mm (2.4 in)
1956
46.0 mm (1.8 in)
1957
92.7 mm (3.6 in)
1958
73.1 mm (2.9 in)
1959
63.5 mm (2.5 in)
1960
33.5 mm (1.3 in)
1962
89.3 mm (3.5 in)
1963
84.1 mm (3.3 in)
1964
77.2 mm (3.0 in)
1965
111.3 mm (4.4 in)
1966
71.2 mm (2.8 in)
1967
99.6 mm (3.9 in)
1968
143.0 mm (5.6 in)
1969
55.9 mm (2.2 in)
1970
82.3 mm (3.2 in)
1971
97.7 mm (3.8 in)
1972
45.8 mm (1.8 in)
1973
110.5 mm (4.4 in)
1974
115.1 mm (4.5 in)
1975
100.6 mm (4.0 in)
1976
77.5 mm (3.1 in)
1977
109.2 mm (4.3 in)
1978
101.2 mm (4.0 in)
1979
60.2 mm (2.4 in)
1980
53.3 mm (2.1 in)
1981
138.7 mm (5.5 in)
1982
66.1 mm (2.6 in)
1983
56.2 mm (2.2 in)
1984
71.6 mm (2.8 in)
1985
67.2 mm (2.6 in)
1986
59.9 mm (2.4 in)
1987
99.3 mm (3.9 in)
1988
151.6 mm (6.0 in)
1989
101.1 mm (4.0 in)
1990
65.0 mm (2.6 in)
1991
64.1 mm (2.5 in)
1992
67.3 mm (2.6 in)
1993
93.9 mm (3.7 in)
1994
91.4 mm (3.6 in)
1995
85.0 mm (3.3 in)
1996
133.2 mm (5.2 in)
1997
67.3 mm (2.6 in)
1998
51.8 mm (2.0 in)
1999
40.9 mm (1.6 in)
2000
72.6 mm (2.9 in)
2001
61.9 mm (2.4 in)
2002
92.9 mm (3.7 in)
2003
67.3 mm (2.6 in)
2004
64.5 mm (2.5 in)
2005
105.1 mm (4.1 in)
2006
94.3 mm (3.7 in)
2007
103.3 mm (4.1 in)
2008
76.0 mm (3.0 in)
2009
63.0 mm (2.5 in)
2010
219.4 mm (8.6 in)
2011
85.9 mm (3.4 in)
2012
18.5 mm (0.7 in)
2013
58.6 mm (2.3 in)
2014
58.2 mm (2.3 in)
2015
71.1 mm (2.8 in)
2016
97.0 mm (3.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Oconto, 1948 to 2016. The record is 84 days in 1999, marked on the chart; the median year is 40 days.
Longest dry spell (CDD) at Oconto by year
Year
Longest dry spell (CDD)
1948
51 days
1949
34 days
1950
47 days
1951
22 days
1952
33 days
1953
42 days
1954
49 days
1955
68 days
1956
61 days
1957
43 days
1958
42 days
1959
57 days
1960
14 days
1962
33 days
1963
43 days
1964
76 days
1965
52 days
1966
42 days
1967
64 days
1968
32 days
1969
22 days
1970
28 days
1971
32 days
1972
44 days
1973
26 days
1974
44 days
1975
22 days
1976
32 days
1977
25 days
1978
33 days
1979
38 days
1980
36 days
1981
18 days
1982
25 days
1983
25 days
1984
20 days
1985
80 days
1986
34 days
1987
28 days
1988
29 days
1989
51 days
1990
29 days
1991
30 days
1992
41 days
1993
28 days
1994
45 days
1995
60 days
1996
66 days
1997
34 days
1998
52 days
1999
84 days
2000
49 days
2001
48 days
2002
62 days
2003
37 days
2004
35 days
2005
38 days
2006
62 days
2007
42 days
2008
31 days
2009
27 days
2010
43 days
2011
1 day
2012
44 days
2013
27 days
2014
52 days
2015
55 days
2016
72 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
39 years with a frost
Across 39 years with a frost, the median last spring frost at Oconto falls on 10 May and the median first autumn frost on 2 October, which leaves a median of 144 days between them.
Fitted over all years, the growing season changes by -1.4 days per decade at this station.
Frost dates and growing season at Oconto
Measure
Median, all years
Earliest period
Recent period (1972 to 2015)
Recent against earliest
Fitted trend
Last spring frost
10 May
n/a
9 May
n/a
+0.8 days per decade
First autumn frost
2 October
n/a
3 October
n/a
-0.5 days per decade
Growing days
144 days
n/a
142 days
n/a
-1.4 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
53 years, 1949 to 2015
A day with at least 54.3 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 114.5 mm (4.5 in) of rain is expected about once in 100 years.
Rainfall return levels at Oconto: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
54.3 mm (2.1 in)
5 years
72.2 mm (2.8 in)
10 years
83.3 mm (3.3 in)
25 years
96.5 mm (3.8 in)
50 years
105.8 mm (4.2 in)
100 years
114.5 mm (4.5 in)
Longer than the 53 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, 53 years of values from 1949 to 2015.
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: 113.8 mm (4.5 in) in 1988; 99.8 mm (3.9 in) in 2010; 97.0 mm (3.8 in) in 1968.
Download the Data
Data for Oconto standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Oconto 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.