Record envelope, standing records and threshold days for Chickasaw Nra (USC00341745), Oklahoma, United States, with 46 years of record.
Key Facts for Chickasaw Nra
Chickasaw Nra (USC00341745) is a weather station in Oklahoma, United States at 34.50 latitude and -96.97 longitude, 319 m (1,047 ft) above sea level.
The station reports from 1978 to 2023, 46 years of record.
1,464 records set at Chickasaw Nra still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Chickasaw Nra set a daily record high minimum temperature of 15.0 C (59.0 F) on 7 November 2023.
About the Station
Location: Oklahoma, United States, 34.50 latitude, -96.97 longitude.
Elevation: 319 m (1,047 ft).
Period of record: 1978 to 2023, 46 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 Chickasaw Nra. 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 Chickasaw Nra, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
27.8 C (82.0 F)
-20.6 C (-5.1 F)
n/a
n/a
Feb
33.3 C (91.9 F)
-24.4 C (-11.9 F)
n/a
n/a
Mar
34.4 C (93.9 F)
-17.2 C (1.0 F)
n/a
n/a
Apr
36.7 C (98.1 F)
-7.2 C (19.0 F)
n/a
n/a
May
37.2 C (99.0 F)
-1.7 C (28.9 F)
n/a
n/a
Jun
42.2 C (108.0 F)
6.7 C (44.1 F)
n/a
n/a
Jul
43.3 C (109.9 F)
11.1 C (52.0 F)
n/a
n/a
Aug
44.4 C (111.9 F)
9.4 C (48.9 F)
n/a
n/a
Sep
43.9 C (111.0 F)
0.6 C (33.1 F)
n/a
n/a
Oct
35.6 C (96.1 F)
-9.4 C (15.1 F)
n/a
n/a
Nov
31.1 C (88.0 F)
-11.7 C (10.9 F)
n/a
n/a
Dec
27.8 C (82.0 F)
-23.9 C (-11.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Chickasaw Nra still stand. 2006 holds the most, with 68.
Standing records at Chickasaw Nra by the year they were set
Year set
Standing records
1978
3
1979
39
1980
61
1981
26
1982
28
1983
38
1984
34
1985
47
1986
35
1987
37
1988
26
1989
62
1990
30
1991
34
1992
35
1993
24
1994
19
1995
22
1996
42
1997
31
1998
37
1999
24
2000
35
2001
21
2002
15
2003
35
2004
21
2005
31
2006
68
2007
28
2008
24
2009
36
2010
21
2011
57
2012
32
2013
30
2014
39
2015
19
2016
19
2017
37
2018
9
2019
1
2020
32
2021
31
2022
60
2023
29
All-Time Record Progression
4 new records
4 all-time records were set at Chickasaw Nra between 4 August 2010 and 25 June 2022. Each dot is a new record.
When Chickasaw Nra set new all-time records
Date
Kind
Detail
2010-08-04
Record high minimum temperature
Record high minimum temperature 28.9 C (84.0 F)
2011-08-03
Record high maximum temperature
Record high maximum temperature 44.4 C (111.9 F)
2021-02-16
Record low minimum temperature
Record low minimum temperature -24.4 C (-11.9 F)
2022-06-25
Record high minimum temperature
Record high minimum temperature 31.1 C (88.0 F)
Wettest Day of Each Month
Sep: 184.4 mm (7.3 in)
The wettest day on record for each calendar month at Chickasaw Nra. The most was 184.4 mm (7.3 in) on 14 September 1993.
Record daily precipitation for each month at Chickasaw Nra
Month
Record daily precipitation (mm)
Date
Jan
83.8 mm (3.3 in)
4 January 1998
Feb
61.5 mm (2.4 in)
15 February 1993
Mar
106.7 mm (4.2 in)
30 March 1985
Apr
134.6 mm (5.3 in)
26 April 1990
May
139.7 mm (5.5 in)
1 May 2011
Jun
171.5 mm (6.8 in)
18 June 2015
Jul
165.1 mm (6.5 in)
8 July 2015
Aug
129.5 mm (5.1 in)
15 August 2005
Sep
184.4 mm (7.3 in)
14 September 1993
Oct
140.7 mm (5.5 in)
13 October 1981
Nov
127.0 mm (5.0 in)
6 November 2011
Dec
90.2 mm (3.6 in)
27 December 2015
Period of Record Coverage
1978 to 2023
Complete yearUnder 90 percent of days
46 years of record at Chickasaw Nra, 1978 to 2023. 8 years have data for under 90 percent of days and are left out of rankings: 1978, 1995, 2000, 2001, 2008, 2018, 2019, 2023.
Cooler than the station meanWarmer than the station mean
One stripe for each of 35 complete years at Chickasaw Nra, 1979 to 2022. Blue stripes are years cooler than the station's own mean of 16.2 C (61.2 F); red stripes are warmer. The coolest year was 1983, at 15.1 C (59.1 F), and the warmest was 2006, at 17.5 C (63.5 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Chickasaw Nra as warming stripes, 1979 to 2022
Year
Annual mean temperature
Difference from the station mean
1979
15.6 C
-0.56 C
1980
17.0 C
+0.78 C
1981
16.6 C
+0.39 C
1982
16.1 C
-0.14 C
1983
15.1 C
-1.13 C
1984
16.0 C
-0.18 C
1985
15.8 C
-0.44 C
1986
16.9 C
+0.68 C
1987
16.1 C
-0.09 C
1988
15.9 C
-0.35 C
1989
15.1 C
-1.09 C
1990
16.5 C
+0.31 C
1991
16.3 C
+0.08 C
1992
16.1 C
-0.13 C
1993
15.3 C
-0.92 C
1994
16.8 C
+0.62 C
1996
15.6 C
-0.57 C
1997
15.5 C
-0.67 C
1998
17.5 C
+1.25 C
1999
16.8 C
+0.56 C
2002
15.5 C
-0.74 C
2003
16.1 C
-0.08 C
2004
16.2 C
+0.01 C
2006
17.5 C
+1.30 C
2007
16.1 C
-0.15 C
2009
15.9 C
-0.32 C
2010
16.1 C
-0.06 C
2011
16.9 C
+0.69 C
2013
15.2 C
-1.04 C
2014
15.2 C
-1.00 C
2015
16.3 C
+0.14 C
2016
17.4 C
+1.15 C
2017
17.0 C
+0.75 C
2021
16.4 C
+0.21 C
2022
16.9 C
+0.74 C
The fitted trend in annual mean temperature here over 1979 to 2022 is 0.1 C (-0.1 to 0.3) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.2 F (-0.1 to 0.5) per decade. The slope is a straight line fitted to 35 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Chickasaw Nra
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.1 C (-0.1 to 0.3) per decade
0.2 F (-0.1 to 0.5) per decade
1979 to 2022
35
Not clearly different from zero
Mean daily maximum
0.1 C (-0.1 to 0.4) per decade
0.3 F (-0.1 to 0.7) per decade
1979 to 2022
35
Not clearly different from zero
Mean daily minimum
0.1 C (-0.1 to 0.3) per decade
0.2 F (-0.2 to 0.5) per decade
1979 to 2022
35
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
1978 to 2023
Yearly extremes at Chickasaw Nra: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
44.4 C (111.9 F)
2011
39.4 C (102.9 F)
46
Coldest night (TNn)
-24.4 C (-11.9 F)
2021
-14.1 C (6.5 F)
46
Wettest day (Rx1day)
184.4 mm (7.3 in)
1993
83.9 mm (3.3 in)
46
Wettest five days (Rx5day)
300.7 mm (11.8 in)
1981
134.8 mm (5.3 in)
46
Longest dry spell (CDD)
58 days
2017
28 days
46
Hottest day (TXx)
The hottest day of the year at Chickasaw Nra, 1978 to 2023. The record is 44.4 C (111.9 F) in 2011, marked on the chart; the median year is 39.4 C (102.9 F).
Hottest day (TXx) at Chickasaw Nra by year
Year
Hottest day (TXx)
1978
27.8 C (82.0 F)
1979
37.2 C (99.0 F)
1980
42.8 C (109.0 F)
1981
40.6 C (105.1 F)
1982
39.4 C (102.9 F)
1983
39.4 C (102.9 F)
1984
41.7 C (107.1 F)
1985
41.7 C (107.1 F)
1986
42.8 C (109.0 F)
1987
37.8 C (100.0 F)
1988
40.0 C (104.0 F)
1989
38.3 C (100.9 F)
1990
40.0 C (104.0 F)
1991
36.7 C (98.1 F)
1992
35.6 C (96.1 F)
1993
38.9 C (102.0 F)
1994
38.3 C (100.9 F)
1995
39.4 C (102.9 F)
1996
41.7 C (107.1 F)
1997
38.3 C (100.9 F)
1998
42.8 C (109.0 F)
1999
40.0 C (104.0 F)
2000
43.9 C (111.0 F)
2001
38.9 C (102.0 F)
2002
35.6 C (96.1 F)
2003
40.0 C (104.0 F)
2004
36.7 C (98.1 F)
2005
36.7 C (98.1 F)
2006
42.2 C (108.0 F)
2007
38.3 C (100.9 F)
2008
41.7 C (107.1 F)
2009
39.4 C (102.9 F)
2010
40.0 C (104.0 F)
2011
44.4 C (111.9 F)
2012
43.9 C (111.0 F)
2013
39.4 C (102.9 F)
2014
38.3 C (100.9 F)
2015
38.3 C (100.9 F)
2016
38.3 C (100.9 F)
2017
36.7 C (98.1 F)
2018
32.8 C (91.0 F)
2019
25.0 C (77.0 F)
2020
37.2 C (99.0 F)
2021
37.2 C (99.0 F)
2022
43.3 C (109.9 F)
2023
42.8 C (109.0 F)
Coldest night (TNn)
The coldest night of the year at Chickasaw Nra, 1978 to 2023. The record is -24.4 C (-11.9 F) in 2021, marked on the chart; the median year is -14.1 C (6.5 F).
Coldest night (TNn) at Chickasaw Nra by year
Year
Coldest night (TNn)
1978
-11.1 C (12.0 F)
1979
-17.8 C (0.0 F)
1980
-15.0 C (5.0 F)
1981
-16.7 C (1.9 F)
1982
-18.3 C (-0.9 F)
1983
-18.3 C (-0.9 F)
1984
-18.3 C (-0.9 F)
1985
-18.9 C (-2.0 F)
1986
-15.0 C (5.0 F)
1987
-10.0 C (14.0 F)
1988
-20.6 C (-5.1 F)
1989
-23.9 C (-11.0 F)
1990
-15.0 C (5.0 F)
1991
-9.4 C (15.1 F)
1992
-15.6 C (3.9 F)
1993
-11.7 C (10.9 F)
1994
-12.2 C (10.0 F)
1995
-13.9 C (7.0 F)
1996
-17.2 C (1.0 F)
1997
-13.9 C (7.0 F)
1998
-11.7 C (10.9 F)
1999
-14.4 C (6.1 F)
2000
-11.1 C (12.0 F)
2001
-12.8 C (9.0 F)
2002
-13.9 C (7.0 F)
2003
-11.1 C (12.0 F)
2004
-12.8 C (9.0 F)
2005
-17.8 C (0.0 F)
2006
-12.2 C (10.0 F)
2007
-14.4 C (6.1 F)
2008
-12.2 C (10.0 F)
2009
-13.3 C (8.1 F)
2010
-16.7 C (1.9 F)
2011
-22.8 C (-9.0 F)
2012
-11.7 C (10.9 F)
2013
-13.9 C (7.0 F)
2014
-16.1 C (3.0 F)
2015
-13.3 C (8.1 F)
2016
-14.4 C (6.1 F)
2017
-19.4 C (-2.9 F)
2018
-17.8 C (0.0 F)
2019
-8.9 C (16.0 F)
2020
-8.3 C (17.1 F)
2021
-24.4 C (-11.9 F)
2022
-13.3 C (8.1 F)
2023
-6.7 C (19.9 F)
Wettest day (Rx1day)
The wettest day of the year at Chickasaw Nra, 1978 to 2023. The record is 184.4 mm (7.3 in) in 1993, marked on the chart; the median year is 83.9 mm (3.3 in).
Wettest day (Rx1day) at Chickasaw Nra by year
Year
Wettest day (Rx1day)
1978
29.2 mm (1.1 in)
1979
66.8 mm (2.6 in)
1980
133.9 mm (5.3 in)
1981
140.7 mm (5.5 in)
1982
78.7 mm (3.1 in)
1983
126.2 mm (5.0 in)
1984
71.1 mm (2.8 in)
1985
106.7 mm (4.2 in)
1986
60.5 mm (2.4 in)
1987
83.8 mm (3.3 in)
1988
55.9 mm (2.2 in)
1989
71.1 mm (2.8 in)
1990
134.6 mm (5.3 in)
1991
74.4 mm (2.9 in)
1992
84.1 mm (3.3 in)
1993
184.4 mm (7.3 in)
1994
71.4 mm (2.8 in)
1995
91.4 mm (3.6 in)
1996
51.1 mm (2.0 in)
1997
104.1 mm (4.1 in)
1998
83.8 mm (3.3 in)
1999
117.1 mm (4.6 in)
2000
62.7 mm (2.5 in)
2001
78.7 mm (3.1 in)
2002
102.9 mm (4.1 in)
2003
63.5 mm (2.5 in)
2004
103.6 mm (4.1 in)
2005
129.5 mm (5.1 in)
2006
110.0 mm (4.3 in)
2007
94.0 mm (3.7 in)
2008
73.7 mm (2.9 in)
2009
122.2 mm (4.8 in)
2010
114.3 mm (4.5 in)
2011
139.7 mm (5.5 in)
2012
63.5 mm (2.5 in)
2013
104.1 mm (4.1 in)
2014
69.3 mm (2.7 in)
2015
171.5 mm (6.8 in)
2016
77.2 mm (3.0 in)
2017
114.3 mm (4.5 in)
2018
58.4 mm (2.3 in)
2019
16.5 mm (0.6 in)
2020
88.9 mm (3.5 in)
2021
50.8 mm (2.0 in)
2022
68.6 mm (2.7 in)
2023
122.2 mm (4.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at Chickasaw Nra, 1978 to 2023. The record is 300.7 mm (11.8 in) in 1981, marked on the chart; the median year is 134.8 mm (5.3 in).
Wettest five days (Rx5day) at Chickasaw Nra by year
Year
Wettest five days (Rx5day)
1978
44.1 mm (1.7 in)
1979
104.2 mm (4.1 in)
1980
200.0 mm (7.9 in)
1981
300.7 mm (11.8 in)
1982
173.7 mm (6.8 in)
1983
175.5 mm (6.9 in)
1984
98.0 mm (3.9 in)
1985
121.4 mm (4.8 in)
1986
123.6 mm (4.9 in)
1987
190.2 mm (7.5 in)
1988
76.3 mm (3.0 in)
1989
139.3 mm (5.5 in)
1990
194.4 mm (7.7 in)
1991
168.0 mm (6.6 in)
1992
137.2 mm (5.4 in)
1993
194.6 mm (7.7 in)
1994
171.2 mm (6.7 in)
1995
94.4 mm (3.7 in)
1996
98.5 mm (3.9 in)
1997
132.3 mm (5.2 in)
1998
171.7 mm (6.8 in)
1999
178.0 mm (7.0 in)
2000
138.4 mm (5.4 in)
2001
162.8 mm (6.4 in)
2002
102.9 mm (4.1 in)
2003
85.5 mm (3.4 in)
2004
121.2 mm (4.8 in)
2005
194.3 mm (7.6 in)
2006
137.2 mm (5.4 in)
2007
126.2 mm (5.0 in)
2008
114.3 mm (4.5 in)
2009
162.8 mm (6.4 in)
2010
114.3 mm (4.5 in)
2011
156.2 mm (6.1 in)
2012
85.4 mm (3.4 in)
2013
118.6 mm (4.7 in)
2014
92.7 mm (3.6 in)
2015
210.0 mm (8.3 in)
2016
97.5 mm (3.8 in)
2017
159.0 mm (6.3 in)
2018
120.8 mm (4.8 in)
2019
24.2 mm (1.0 in)
2020
165.1 mm (6.5 in)
2021
98.3 mm (3.9 in)
2022
121.9 mm (4.8 in)
2023
149.8 mm (5.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Chickasaw Nra, 1978 to 2023. The record is 58 days in 2017, marked on the chart; the median year is 28 days.
Longest dry spell (CDD) at Chickasaw Nra by year
Year
Longest dry spell (CDD)
1978
12 days
1979
24 days
1980
42 days
1981
21 days
1982
19 days
1983
22 days
1984
22 days
1985
29 days
1986
33 days
1987
24 days
1988
23 days
1989
32 days
1990
19 days
1991
28 days
1992
16 days
1993
18 days
1994
15 days
1995
26 days
1996
55 days
1997
15 days
1998
30 days
1999
26 days
2000
45 days
2001
32 days
2002
22 days
2003
36 days
2004
24 days
2005
25 days
2006
37 days
2007
33 days
2008
24 days
2009
28 days
2010
38 days
2011
40 days
2012
32 days
2013
28 days
2014
22 days
2015
34 days
2016
36 days
2017
58 days
2018
39 days
2019
27 days
2020
35 days
2021
36 days
2022
51 days
2023
30 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
35 years with a frost
Across 35 years with a frost, the median last spring frost at Chickasaw Nra falls on 6 April and the median first autumn frost on 1 November, which leaves a median of 211 days between them.
Fitted over all years, the growing season changes by -0.9 days per decade at this station.
Frost dates and growing season at Chickasaw Nra
Measure
Median, all years
Earliest period
Recent period (1984 to 2022)
Recent against earliest
Fitted trend
Last spring frost
6 April
n/a
6 April
n/a
+1.4 days per decade
First autumn frost
1 November
n/a
4 November
n/a
+0.5 days per decade
Growing days
211 days
n/a
212 days
n/a
-0.9 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
42 years, 1979 to 2022
A day with at least 89.3 mm (3.5 in) of rain is expected about once in 2 years. A day with at least 201.6 mm (7.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Chickasaw Nra: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
89.3 mm (3.5 in)
5 years
118.4 mm (4.7 in)
10 years
138.0 mm (5.4 in)
25 years
163.3 mm (6.4 in)
50 years
182.4 mm (7.2 in)
Longer than the 42 years of record
100 years
201.6 mm (7.9 in)
Longer than the 42 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, 42 years of values from 1979 to 2022.
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: 184.4 mm (7.3 in) in 1993; 171.5 mm (6.8 in) in 2015; 140.7 mm (5.5 in) in 1981.
Download the Data
Data for Chickasaw Nra standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Chickasaw Nra 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.