Record envelope, standing records and threshold days for Princeton 1 SE (USC00156580), Kentucky, United States, with 57 years of record.
Key Facts for Princeton 1 SE
Princeton 1 SE (USC00156580) is a weather station in Kentucky, United States at 37.12 latitude and -87.87 longitude, 152 m (497 ft) above sea level.
The station reports from 1965 to 2021, 57 years of record.
1,464 records set at Princeton 1 SE still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Princeton 1 SE tied a daily record high minimum temperature of 18.9 C (66.0 F) on 11 October 2021.
About the Station
Location: Kentucky, United States, 37.12 latitude, -87.87 longitude.
Elevation: 152 m (497 ft).
Period of record: 1965 to 2021, 57 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 Princeton 1 SE. 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 Princeton 1 SE, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
23.3 C (73.9 F)
-27.8 C (-18.0 F)
n/a
n/a
Feb
26.1 C (79.0 F)
-25.0 C (-13.0 F)
n/a
n/a
Mar
29.4 C (84.9 F)
-22.8 C (-9.0 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-7.2 C (19.0 F)
n/a
n/a
May
35.0 C (95.0 F)
-0.6 C (30.9 F)
n/a
n/a
Jun
42.2 C (108.0 F)
5.0 C (41.0 F)
n/a
n/a
Jul
42.8 C (109.0 F)
10.0 C (50.0 F)
n/a
n/a
Aug
41.7 C (107.1 F)
6.7 C (44.1 F)
n/a
n/a
Sep
38.9 C (102.0 F)
1.1 C (34.0 F)
n/a
n/a
Oct
35.0 C (95.0 F)
-7.2 C (19.0 F)
n/a
n/a
Nov
28.9 C (84.0 F)
-12.2 C (10.0 F)
n/a
n/a
Dec
25.6 C (78.1 F)
-25.6 C (-14.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Princeton 1 SE still stand. 1983 holds the most, with 49.
Standing records at Princeton 1 SE by the year they were set
Year set
Standing records
1965
24
1966
38
1967
47
1968
33
1969
20
1970
32
1971
31
1972
29
1973
12
1974
38
1975
18
1976
31
1977
26
1978
30
1979
20
1980
36
1981
15
1982
27
1983
49
1984
33
1985
31
1986
38
1987
25
1988
25
1989
39
1990
36
1991
31
1992
19
1993
22
1994
17
1995
14
1996
34
1997
24
1998
35
1999
31
2000
36
2001
17
2002
23
2003
13
2004
13
2005
15
2006
9
2007
37
2008
21
2009
13
2010
32
2011
30
2012
45
2013
19
2014
27
2015
30
2016
16
2017
14
2018
18
2019
11
2020
5
2021
10
All-Time Record Progression
8 new records
8 all-time records were set at Princeton 1 SE between 30 July 1999 and 6 March 2015. Each dot is a new record.
When Princeton 1 SE set new all-time records
Date
Kind
Detail
1999-07-30
Record high maximum temperature
Record high maximum temperature 40.6 C (105.1 F)
2007-08-11
Record high minimum temperature
Record high minimum temperature 30.6 C (87.1 F)
2007-08-17
Record high maximum temperature
Record high maximum temperature 41.7 C (107.1 F)
2012-06-30
Record high maximum temperature
Record high maximum temperature 42.2 C (108.0 F)
2012-07-01
Record high maximum temperature
Record high maximum temperature 42.8 C (109.0 F)
2015-02-16
Record snow depth
Record snow depth 30.5 cm (12.0 in)
2015-03-06
Record daily snowfall
Record daily snowfall 38.1 cm (15.0 in)
2015-03-06
Record snow depth
Record snow depth 38.1 cm (15.0 in)
Wettest Day of Each Month
Feb: 139.2 mm (5.5 in)
The wettest day on record for each calendar month at Princeton 1 SE. The most was 139.2 mm (5.5 in) on 15 February 1990.
Record daily precipitation for each month at Princeton 1 SE
Month
Record daily precipitation (mm)
Date
Jan
112.3 mm (4.4 in)
22 January 1999
Feb
139.2 mm (5.5 in)
15 February 1990
Mar
122.9 mm (4.8 in)
1 March 1997
Apr
94.0 mm (3.7 in)
24 April 2011
May
109.2 mm (4.3 in)
3 May 1983
Jun
113.8 mm (4.5 in)
9 June 1998
Jul
85.1 mm (3.4 in)
21 July 2013
Aug
133.4 mm (5.3 in)
10 August 1992
Sep
130.8 mm (5.1 in)
21 September 1979
Oct
88.9 mm (3.5 in)
6 October 2013
Nov
114.8 mm (4.5 in)
19 November 1988
Dec
98.8 mm (3.9 in)
3 December 1978
Period of Record Coverage
1965 to 2021
Complete yearUnder 90 percent of days
57 years of record at Princeton 1 SE, 1965 to 2021. 8 years have data for under 90 percent of days and are left out of rankings: 1982, 1986, 1987, 1993, 2016, 2018, 2020, 2021.
Cooler than the station meanWarmer than the station mean
One stripe for each of 48 complete years at Princeton 1 SE, 1966 to 2019. Blue stripes are years cooler than the station's own mean of 14.7 C (58.5 F); red stripes are warmer. The coolest year was 1979, at 13.3 C (55.9 F), and the warmest was 2012, at 16.6 C (61.9 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Princeton 1 SE as warming stripes, 1966 to 2019
Year
Annual mean temperature
Difference from the station mean
1966
13.8 C
-0.92 C
1967
14.0 C
-0.71 C
1968
13.8 C
-0.92 C
1969
13.9 C
-0.84 C
1970
14.2 C
-0.55 C
1971
14.5 C
-0.18 C
1972
14.3 C
-0.43 C
1973
15.0 C
+0.30 C
1974
14.7 C
-0.06 C
1975
14.7 C
-0.02 C
1976
13.8 C
-0.94 C
1977
14.5 C
-0.25 C
1978
13.5 C
-1.17 C
1979
13.3 C
-1.42 C
1980
14.3 C
-0.45 C
1981
14.3 C
-0.38 C
1983
14.3 C
-0.39 C
1984
14.5 C
-0.25 C
1985
14.1 C
-0.65 C
1988
14.2 C
-0.48 C
1989
14.1 C
-0.66 C
1990
15.6 C
+0.85 C
1991
15.7 C
+0.97 C
1992
14.6 C
-0.13 C
1994
14.7 C
-0.02 C
1995
14.9 C
+0.17 C
1996
14.4 C
-0.29 C
1997
14.4 C
-0.29 C
1998
16.5 C
+1.78 C
1999
16.3 C
+1.55 C
2000
15.2 C
+0.53 C
2001
15.5 C
+0.80 C
2002
15.5 C
+0.78 C
2003
14.4 C
-0.35 C
2004
15.1 C
+0.35 C
2005
15.3 C
+0.63 C
2006
15.4 C
+0.67 C
2007
16.1 C
+1.40 C
2008
14.6 C
-0.14 C
2009
14.4 C
-0.28 C
2010
15.0 C
+0.32 C
2011
15.6 C
+0.85 C
2012
16.6 C
+1.90 C
2013
14.4 C
-0.29 C
2014
13.4 C
-1.30 C
2015
14.7 C
+0.02 C
2017
15.8 C
+1.07 C
2019
14.5 C
-0.18 C
The annual mean temperature here has risen by 0.3 C (0.1 to 0.4) per decade over 1966 to 2019. In Fahrenheit: 0.5 F (0.2 to 0.7) per decade. The slope is a straight line fitted to 48 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Princeton 1 SE
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.3 C (0.1 to 0.4) per decade
0.5 F (0.2 to 0.7) per decade
1966 to 2019
48
Rise
Mean daily maximum
0.3 C (0.1 to 0.4) per decade
0.5 F (0.2 to 0.8) per decade
1966 to 2019
48
Rise
Mean daily minimum
0.2 C (0.1 to 0.3) per decade
0.4 F (0.2 to 0.6) per decade
1966 to 2019
48
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
1965 to 2021
Yearly extremes at Princeton 1 SE: 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
36.1 C (97.0 F)
57
Coldest night (TNn)
-27.8 C (-18.0 F)
1994
-17.8 C (0.0 F)
57
Wettest day (Rx1day)
139.2 mm (5.5 in)
1990
83.8 mm (3.3 in)
57
Wettest five days (Rx5day)
286.2 mm (11.3 in)
1989
134.6 mm (5.3 in)
57
Longest dry spell (CDD)
42 days
2004
18 days
57
Hottest day (TXx)
The hottest day of the year at Princeton 1 SE, 1965 to 2021. The record is 42.8 C (109.0 F) in 2012, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Princeton 1 SE by year
Year
Hottest day (TXx)
1965
37.8 C (100.0 F)
1966
40.0 C (104.0 F)
1967
33.9 C (93.0 F)
1968
36.1 C (97.0 F)
1969
36.1 C (97.0 F)
1970
36.1 C (97.0 F)
1971
35.6 C (96.1 F)
1972
34.4 C (93.9 F)
1973
35.0 C (95.0 F)
1974
35.6 C (96.1 F)
1975
34.4 C (93.9 F)
1976
36.1 C (97.0 F)
1977
35.6 C (96.1 F)
1978
37.8 C (100.0 F)
1979
35.0 C (95.0 F)
1980
38.9 C (102.0 F)
1981
35.0 C (95.0 F)
1982
35.6 C (96.1 F)
1983
37.8 C (100.0 F)
1984
37.2 C (99.0 F)
1985
33.9 C (93.0 F)
1986
37.8 C (100.0 F)
1987
38.3 C (100.9 F)
1988
39.4 C (102.9 F)
1989
35.0 C (95.0 F)
1990
38.3 C (100.9 F)
1991
38.3 C (100.9 F)
1992
35.0 C (95.0 F)
1993
37.8 C (100.0 F)
1994
35.6 C (96.1 F)
1995
36.7 C (98.1 F)
1996
35.6 C (96.1 F)
1997
37.8 C (100.0 F)
1998
36.7 C (98.1 F)
1999
40.6 C (105.1 F)
2000
37.2 C (99.0 F)
2001
36.1 C (97.0 F)
2002
38.9 C (102.0 F)
2003
35.6 C (96.1 F)
2004
35.0 C (95.0 F)
2005
37.8 C (100.0 F)
2006
36.7 C (98.1 F)
2007
41.7 C (107.1 F)
2008
36.7 C (98.1 F)
2009
35.6 C (96.1 F)
2010
40.0 C (104.0 F)
2011
37.8 C (100.0 F)
2012
42.8 C (109.0 F)
2013
36.1 C (97.0 F)
2014
33.9 C (93.0 F)
2015
34.4 C (93.9 F)
2016
35.0 C (95.0 F)
2017
35.6 C (96.1 F)
2018
35.6 C (96.1 F)
2019
35.0 C (95.0 F)
2020
32.8 C (91.0 F)
2021
33.3 C (91.9 F)
Coldest night (TNn)
The coldest night of the year at Princeton 1 SE, 1965 to 2021. The record is -27.8 C (-18.0 F) in 1994, marked on the chart; the median year is -17.8 C (0.0 F).
Coldest night (TNn) at Princeton 1 SE by year
Year
Coldest night (TNn)
1965
-19.4 C (-2.9 F)
1966
-21.1 C (-6.0 F)
1967
-17.8 C (0.0 F)
1968
-18.9 C (-2.0 F)
1969
-15.0 C (5.0 F)
1970
-21.7 C (-7.1 F)
1971
-18.3 C (-0.9 F)
1972
-21.1 C (-6.0 F)
1973
-15.6 C (3.9 F)
1974
-13.3 C (8.1 F)
1975
-14.4 C (6.1 F)
1976
-20.0 C (-4.0 F)
1977
-25.6 C (-14.1 F)
1978
-18.9 C (-2.0 F)
1979
-20.6 C (-5.1 F)
1980
-18.3 C (-0.9 F)
1981
-19.4 C (-2.9 F)
1982
-26.7 C (-16.1 F)
1983
-23.3 C (-9.9 F)
1984
-25.6 C (-14.1 F)
1985
-27.2 C (-17.0 F)
1986
-18.9 C (-2.0 F)
1987
-16.1 C (3.0 F)
1988
-16.1 C (3.0 F)
1989
-25.6 C (-14.1 F)
1990
-12.2 C (10.0 F)
1991
-12.8 C (9.0 F)
1992
-15.0 C (5.0 F)
1993
-12.2 C (10.0 F)
1994
-27.8 C (-18.0 F)
1995
-16.7 C (1.9 F)
1996
-21.1 C (-6.0 F)
1997
-17.8 C (0.0 F)
1998
-13.3 C (8.1 F)
1999
-13.3 C (8.1 F)
2000
-16.1 C (3.0 F)
2001
-14.4 C (6.1 F)
2002
-13.3 C (8.1 F)
2003
-21.1 C (-6.0 F)
2004
-18.3 C (-0.9 F)
2005
-13.3 C (8.1 F)
2006
-15.0 C (5.0 F)
2007
-13.9 C (7.0 F)
2008
-14.4 C (6.1 F)
2009
-18.9 C (-2.0 F)
2010
-16.7 C (1.9 F)
2011
-18.9 C (-2.0 F)
2012
-14.4 C (6.1 F)
2013
-11.7 C (10.9 F)
2014
-18.3 C (-0.9 F)
2015
-25.0 C (-13.0 F)
2016
-11.1 C (12.0 F)
2017
-14.4 C (6.1 F)
2018
-18.3 C (-0.9 F)
2019
-12.2 C (10.0 F)
2020
-8.9 C (16.0 F)
2021
-16.7 C (1.9 F)
Wettest day (Rx1day)
The wettest day of the year at Princeton 1 SE, 1965 to 2021. The record is 139.2 mm (5.5 in) in 1990, marked on the chart; the median year is 83.8 mm (3.3 in).
Wettest day (Rx1day) at Princeton 1 SE by year
Year
Wettest day (Rx1day)
1965
97.8 mm (3.9 in)
1966
68.1 mm (2.7 in)
1967
76.2 mm (3.0 in)
1968
49.8 mm (2.0 in)
1969
102.9 mm (4.1 in)
1970
97.3 mm (3.8 in)
1971
50.8 mm (2.0 in)
1972
94.2 mm (3.7 in)
1973
64.8 mm (2.6 in)
1974
72.4 mm (2.9 in)
1975
108.5 mm (4.3 in)
1976
84.8 mm (3.3 in)
1977
82.8 mm (3.3 in)
1978
98.8 mm (3.9 in)
1979
130.8 mm (5.1 in)
1980
68.1 mm (2.7 in)
1981
59.4 mm (2.3 in)
1982
97.8 mm (3.9 in)
1983
109.2 mm (4.3 in)
1984
97.0 mm (3.8 in)
1985
76.2 mm (3.0 in)
1986
48.0 mm (1.9 in)
1987
77.5 mm (3.1 in)
1988
114.8 mm (4.5 in)
1989
112.5 mm (4.4 in)
1990
139.2 mm (5.5 in)
1991
62.2 mm (2.4 in)
1992
133.4 mm (5.3 in)
1993
57.4 mm (2.3 in)
1994
56.6 mm (2.2 in)
1995
78.0 mm (3.1 in)
1996
66.5 mm (2.6 in)
1997
122.9 mm (4.8 in)
1998
113.8 mm (4.5 in)
1999
112.3 mm (4.4 in)
2000
87.6 mm (3.4 in)
2001
60.7 mm (2.4 in)
2002
81.0 mm (3.2 in)
2003
62.5 mm (2.5 in)
2004
90.9 mm (3.6 in)
2005
116.8 mm (4.6 in)
2006
90.7 mm (3.6 in)
2007
84.3 mm (3.3 in)
2008
78.7 mm (3.1 in)
2009
99.3 mm (3.9 in)
2010
76.2 mm (3.0 in)
2011
94.0 mm (3.7 in)
2012
51.6 mm (2.0 in)
2013
88.9 mm (3.5 in)
2014
83.8 mm (3.3 in)
2015
61.0 mm (2.4 in)
2016
71.4 mm (2.8 in)
2017
60.7 mm (2.4 in)
2018
62.0 mm (2.4 in)
2019
62.2 mm (2.4 in)
2020
87.1 mm (3.4 in)
2021
91.7 mm (3.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Princeton 1 SE, 1965 to 2021. The record is 286.2 mm (11.3 in) in 1989, marked on the chart; the median year is 134.6 mm (5.3 in).
Wettest five days (Rx5day) at Princeton 1 SE by year
Year
Wettest five days (Rx5day)
1965
140.0 mm (5.5 in)
1966
143.7 mm (5.7 in)
1967
91.0 mm (3.6 in)
1968
100.6 mm (4.0 in)
1969
134.9 mm (5.3 in)
1970
131.6 mm (5.2 in)
1971
69.3 mm (2.7 in)
1972
113.9 mm (4.5 in)
1973
144.0 mm (5.7 in)
1974
97.0 mm (3.8 in)
1975
136.9 mm (5.4 in)
1976
181.3 mm (7.1 in)
1977
154.2 mm (6.1 in)
1978
151.9 mm (6.0 in)
1979
152.9 mm (6.0 in)
1980
104.6 mm (4.1 in)
1981
89.7 mm (3.5 in)
1982
159.5 mm (6.3 in)
1983
240.8 mm (9.5 in)
1984
159.0 mm (6.3 in)
1985
111.1 mm (4.4 in)
1986
80.5 mm (3.2 in)
1987
164.4 mm (6.5 in)
1988
177.4 mm (7.0 in)
1989
286.2 mm (11.3 in)
1990
184.7 mm (7.3 in)
1991
82.0 mm (3.2 in)
1992
144.1 mm (5.7 in)
1993
145.8 mm (5.7 in)
1994
84.0 mm (3.3 in)
1995
102.8 mm (4.0 in)
1996
103.2 mm (4.1 in)
1997
224.0 mm (8.8 in)
1998
155.7 mm (6.1 in)
1999
134.4 mm (5.3 in)
2000
124.4 mm (4.9 in)
2001
152.4 mm (6.0 in)
2002
124.7 mm (4.9 in)
2003
120.1 mm (4.7 in)
2004
123.1 mm (4.8 in)
2005
228.8 mm (9.0 in)
2006
176.3 mm (6.9 in)
2007
149.1 mm (5.9 in)
2008
120.7 mm (4.8 in)
2009
120.9 mm (4.8 in)
2010
144.5 mm (5.7 in)
2011
225.0 mm (8.9 in)
2012
67.6 mm (2.7 in)
2013
134.6 mm (5.3 in)
2014
111.2 mm (4.4 in)
2015
121.1 mm (4.8 in)
2016
237.3 mm (9.3 in)
2017
101.8 mm (4.0 in)
2018
162.8 mm (6.4 in)
2019
95.5 mm (3.8 in)
2020
104.6 mm (4.1 in)
2021
98.0 mm (3.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Princeton 1 SE, 1965 to 2021. The record is 42 days in 2004, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Princeton 1 SE by year
Year
Longest dry spell (CDD)
1965
18 days
1966
24 days
1967
19 days
1968
19 days
1969
20 days
1970
16 days
1971
16 days
1972
21 days
1973
15 days
1974
14 days
1975
16 days
1976
26 days
1977
18 days
1978
17 days
1979
13 days
1980
18 days
1981
16 days
1982
16 days
1983
26 days
1984
12 days
1985
18 days
1986
24 days
1987
21 days
1988
23 days
1989
15 days
1990
18 days
1991
23 days
1992
19 days
1993
19 days
1994
17 days
1995
33 days
1996
18 days
1997
15 days
1998
28 days
1999
24 days
2000
30 days
2001
16 days
2002
18 days
2003
18 days
2004
42 days
2005
21 days
2006
12 days
2007
23 days
2008
20 days
2009
17 days
2010
29 days
2011
27 days
2012
22 days
2013
18 days
2014
18 days
2015
30 days
2016
28 days
2017
17 days
2018
16 days
2019
30 days
2020
12 days
2021
11 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
48 years with a frost
Across 48 years with a frost, the median last spring frost at Princeton 1 SE falls on 9 April and the median first autumn frost on 24 October, which leaves a median of 198 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 Princeton 1 SE
Measure
Median, all years
Earliest period
Recent period (1985 to 2019)
Recent against earliest
Fitted trend
Last spring frost
9 April
n/a
10 April
n/a
0.0 days per decade
First autumn frost
24 October
n/a
25 October
n/a
+1.4 days per decade
Growing days
198 days
n/a
196 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, 1965 to 2019
A day with at least 83.0 mm (3.3 in) of rain is expected about once in 2 years. A day with at least 149.2 mm (5.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Princeton 1 SE: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
83.0 mm (3.3 in)
5 years
104.5 mm (4.1 in)
10 years
117.1 mm (4.6 in)
25 years
131.2 mm (5.2 in)
50 years
140.6 mm (5.5 in)
100 years
149.2 mm (5.9 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 1965 to 2019.
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: 139.2 mm (5.5 in) in 1990; 133.4 mm (5.3 in) in 1992; 130.8 mm (5.1 in) in 1979.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2003 to 2019 against 1961 to 1990
Over 2003 to 2019, Princeton 1 SE had a mean temperature of 15.0 C (59.0 F) and 1,299.5 mm (51.2 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Jackson Exp STN (United States, 189 km away), Bolivar Wtr Wks (United States, 230 km away) and Covington 3 SW (United States, 240 km away).
Climate twins of Princeton 1 SE: stations whose 1961 to 1990 climate is closest to its 2003 to 2019 climate
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Data for Princeton 1 SE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Princeton 1 SE 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.