Cassoday 2SE Weather Records (USC00141351)

Record envelope, standing records and threshold days for Cassoday 2SE (USC00141351), Kansas, United States, with 79 years of record.

Key Facts for Cassoday 2SE

Cassoday 2SE (USC00141351) is a weather station in Kansas, United States at 38.02 latitude and -96.60 longitude, 463 m (1,520 ft) above sea level.
The station reports from 1948 to 2026, 79 years of record.
1,464 records set at Cassoday 2SE still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Cassoday 2SE set a daily record precipitation of 33.0 mm (1.3 in) on 7 August 2026.

About the Station

Location: Kansas, United States, 38.02 latitude, -96.60 longitude.
Elevation: 463 m (1,520 ft).
Period of record: 1948 to 2026, 79 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Cassoday 2SE. 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 Cassoday 2SE, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	23.9 C (75.0 F)	-28.9 C (-20.0 F)	n/a	n/a
Feb	27.2 C (81.0 F)	-31.7 C (-25.1 F)	n/a	n/a
Mar	31.7 C (89.1 F)	-21.1 C (-6.0 F)	n/a	n/a
Apr	34.4 C (93.9 F)	-10.6 C (12.9 F)	n/a	n/a
May	37.2 C (99.0 F)	-3.3 C (26.1 F)	n/a	n/a
Jun	42.8 C (109.0 F)	4.4 C (39.9 F)	n/a	n/a
Jul	43.3 C (109.9 F)	7.8 C (46.0 F)	n/a	n/a
Aug	42.8 C (109.0 F)	5.6 C (42.1 F)	n/a	n/a
Sep	41.1 C (106.0 F)	-2.8 C (27.0 F)	n/a	n/a
Oct	35.0 C (95.0 F)	-10.6 C (12.9 F)	n/a	n/a
Nov	30.0 C (86.0 F)	-20.0 C (-4.0 F)	n/a	n/a
Dec	23.3 C (73.9 F)	-30.0 C (-22.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Cassoday 2SE still stand. 1980 holds the most, with 72.

Standing records at Cassoday 2SE by the year they were set
Year set	Standing records
1962	26
1963	35
1964	35
1965	28
1966	40
1967	43
1968	28
1969	15
1970	38
1971	15
1972	31
1973	18
1974	35
1975	32
1976	31
1977	22
1978	37
1979	33
1980	72
1981	21
1982	15
1983	37
1984	29
1985	20
1986	19
1987	14
1988	17
1989	38
1990	16
1991	19
1992	25
1993	11
1994	16
1995	18
1996	24
1997	20
1998	26
1999	16
2000	32
2001	14
2002	15
2003	20
2004	21
2005	21
2006	22
2007	17
2008	12
2009	24
2010	14
2011	36
2012	32
2013	17
2014	42
2015	16
2016	17
2017	12
2019	17
2020	16
2021	24
2022	8

All-Time Record Progression

2 new records

2 all-time records were set at Cassoday 2SE between 9 February 2011 and 10 February 2011. Each dot is a new record.

When Cassoday 2SE set new all-time records
Date	Kind	Detail
2011-02-09	Record snow depth	Record snow depth 33.0 cm (13.0 in)
2011-02-10	Record low minimum temperature	Record low minimum temperature -31.7 C (-25.1 F)

Wettest Day of Each Month

Jun: 208.3 mm (8.2 in)

The wettest day on record for each calendar month at Cassoday 2SE. The most was 208.3 mm (8.2 in) on 8 June 1979.

Record daily precipitation for each month at Cassoday 2SE
Month	Record daily precipitation (mm)	Date
Jan	57.4 mm (2.3 in)	5 January 2005
Feb	53.3 mm (2.1 in)	21 February 1997
Mar	76.2 mm (3.0 in)	29 March 2017
Apr	109.5 mm (4.3 in)	27 April 2009
May	118.4 mm (4.7 in)	21 May 2019
Jun	208.3 mm (8.2 in)	8 June 1979
Jul	86.4 mm (3.4 in)	3 July 1976
Aug	135.9 mm (5.4 in)	25 August 2005
Sep	105.2 mm (4.1 in)	18 September 2001
Oct	97.8 mm (3.9 in)	11 October 1973
Nov	128.3 mm (5.1 in)	1 November 1998
Dec	50.8 mm (2.0 in)	9 December 1999

Period of Record Coverage

1962 to 2022

60 years of record at Cassoday 2SE, 1962 to 2022. 6 years have data for under 90 percent of days and are left out of rankings: 1962, 2013, 2017, 2019, 2020, 2022.

Days with data per year at Cassoday 2SE
Year	Days with data	Share of year	Complete
1962	300	82%	No
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	364	100%	Yes
1970	364	100%	Yes
1971	365	100%	Yes
1972	364	99%	Yes
1973	365	100%	Yes
1974	362	99%	Yes
1975	361	99%	Yes
1976	365	100%	Yes
1977	335	92%	Yes
1978	353	97%	Yes
1979	363	99%	Yes
1980	364	99%	Yes
1981	357	98%	Yes
1982	357	98%	Yes
1983	357	98%	Yes
1984	353	96%	Yes
1985	350	96%	Yes
1986	362	99%	Yes
1987	358	98%	Yes
1988	363	99%	Yes
1989	360	99%	Yes
1990	363	99%	Yes
1991	360	99%	Yes
1992	359	98%	Yes
1993	343	94%	Yes
1994	353	97%	Yes
1995	357	98%	Yes
1996	355	97%	Yes
1997	365	100%	Yes
1998	365	100%	Yes
1999	344	94%	Yes
2000	355	97%	Yes
2001	358	98%	Yes
2002	349	96%	Yes
2003	354	97%	Yes
2004	352	96%	Yes
2005	351	96%	Yes
2006	356	98%	Yes
2007	357	98%	Yes
2008	356	97%	Yes
2009	338	93%	Yes
2010	361	99%	Yes
2011	365	100%	Yes
2012	366	100%	Yes
2013	283	78%	No
2014	365	100%	Yes
2015	365	100%	Yes
2016	366	100%	Yes
2017	299	82%	No
2019	273	75%	No
2020	294	80%	No
2021	352	96%	Yes
2022	153	42%	No

Latest Records

Latest records at Cassoday 2SE
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
7 August 2026	Cassoday 2SE, US	daily rain	33.0 mm (1.3 in)	7.6 mm (0.30 in)	44 years	24 of 100 (Routine)
31 May 2026	Cassoday 2SE, US	daily rain	31.8 mm (1.3 in)	1.1 mm (0.04 in)	4 years	8 of 100 (Routine)
11 March 2026	Cassoday 2SE, US	daily rain	24.1 mm (0.9 in)	2.5 mm (0.10 in)	52 years	20 of 100 (Routine)
14 February 2026	Cassoday 2SE, US	daily rain	50.5 mm (2.0 in)	29.7 mm (1.2 in)	23 years	46 of 100 (Notable)
31 January 2026	Cassoday 2SE, US	daily snow depth (Tie)	7.6 cm (3.0 in)	tie	20 years	3 of 100 (Routine)
28 January 2026	Cassoday 2SE, US	daily snow depth	10.2 cm (4.0 in)	5.1 cm (2.0 in)	26 years	24 of 100 (Routine)
27 January 2026	Cassoday 2SE, US	daily snow depth	10.2 cm (4.0 in)	7.7 cm (3.0 in)	19 years	28 of 100 (Routine)
26 January 2026	Cassoday 2SE, US	daily snow depth	12.7 cm (5.0 in)	7.6 cm (3.0 in)	19 years	28 of 100 (Routine)
25 January 2026	Cassoday 2SE, US	daily snowfall	6.4 cm (2.5 in)	6.4 cm (2.5 in)	62 years	37 of 100 (Notable)
25 January 2026	Cassoday 2SE, US	daily snow depth	12.7 cm (5.0 in)	2.5 cm (1.0 in)	19 years	16 of 100 (Routine)
24 January 2026	Cassoday 2SE, US	daily snowfall	5.1 cm (2.0 in)	4.3 cm (1.7 in)	6 years	16 of 100 (Routine)
8 January 2026	Cassoday 2SE, US	daily rain	26.2 mm (1.0 in)	22.1 mm (0.9 in)	10 years	34 of 100 (Routine)
24 October 2025	Cassoday 2SE, US	daily rain	34.0 mm (1.3 in)	16.2 mm (0.6 in)	23 years	23 of 100 (Routine)
11 August 2025	Cassoday 2SE, US	daily rain	78.2 mm (3.1 in)	7.1 mm (0.28 in)	48 years	24 of 100 (Routine)
30 May 2022	Cassoday 2SE, US	daily high min (Tie)	21.1 C (70.0 F)	tie	32 years	3 of 100 (Routine)
22 May 2022	Cassoday 2SE, US	daily low max	16.1 C (61.0 F)	1.1 C (2.0 F)	7 years	10 of 100 (Routine)
22 May 2022	Cassoday 2SE, US	daily low min (Tie)	4.4 C (39.9 F)	tie	36 years	4 of 100 (Routine)
11 May 2022	Cassoday 2SE, US	daily high max	33.3 C (91.9 F)	1.1 C (2.0 F)	55 years	24 of 100 (Routine)
11 May 2022	Cassoday 2SE, US	daily high min (Tie)	20.0 C (68.0 F)	tie	36 years	4 of 100 (Routine)
10 May 2022	Cassoday 2SE, US	monthly high min (Tie)	22.8 C (73.0 F)	tie	57 years	8 of 100 (Routine)

Climate Trend

50 complete years, 1963 to 2016

One stripe for each of 50 complete years at Cassoday 2SE, 1963 to 2016. Blue stripes are years cooler than the station's own mean of 12.8 C (55.1 F); red stripes are warmer. The coolest year was 2014, at 11.4 C (52.5 F), and the warmest was 2012, at 14.4 C (58.0 F). The strongest colour marks a difference of 1.7 C (3.1 F).

Annual mean temperature at Cassoday 2SE as warming stripes, 1963 to 2016
Year	Annual mean temperature	Difference from the station mean
1963	13.7 C	+0.84 C
1964	13.2 C	+0.34 C
1965	13.2 C	+0.38 C
1966	12.4 C	-0.46 C
1967	12.5 C	-0.39 C
1968	12.2 C	-0.61 C
1969	12.3 C	-0.50 C
1970	12.9 C	+0.03 C
1971	12.6 C	-0.28 C
1972	12.6 C	-0.24 C
1973	13.0 C	+0.16 C
1974	12.8 C	-0.05 C
1975	12.8 C	-0.07 C
1976	12.9 C	+0.10 C
1978	12.4 C	-0.43 C
1979	11.7 C	-1.13 C
1980	14.0 C	+1.15 C
1981	13.4 C	+0.57 C
1982	13.1 C	+0.23 C
1983	12.6 C	-0.21 C
1984	13.3 C	+0.48 C
1985	12.1 C	-0.70 C
1986	13.8 C	+0.93 C
1987	13.4 C	+0.58 C
1988	13.0 C	+0.15 C
1989	11.9 C	-0.91 C
1990	13.5 C	+0.64 C
1991	13.7 C	+0.83 C
1992	12.5 C	-0.39 C
1994	12.9 C	+0.06 C
1995	12.2 C	-0.69 C
1996	11.9 C	-0.96 C
1997	11.7 C	-1.11 C
1998	13.5 C	+0.63 C
1999	13.3 C	+0.48 C
2000	13.0 C	+0.13 C
2001	13.2 C	+0.40 C
2002	12.5 C	-0.34 C
2003	12.3 C	-0.58 C
2004	12.4 C	-0.40 C
2005	13.0 C	+0.15 C
2006	13.8 C	+0.91 C
2007	12.7 C	-0.11 C
2008	11.5 C	-1.32 C
2010	12.8 C	-0.08 C
2011	12.9 C	+0.04 C
2012	14.4 C	+1.60 C
2014	11.4 C	-1.43 C
2015	13.2 C	+0.39 C
2016	14.0 C	+1.13 C

The fitted trend in annual mean temperature here over 1963 to 2016 is 0.02 C (-0.11 to 0.14) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.03 F (-0.20 to 0.25) per decade. The slope is a straight line fitted to 50 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Cassoday 2SE
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.02 C (-0.11 to 0.14) per decade	0.03 F (-0.20 to 0.25) per decade	1963 to 2016	50	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	1963 to 2016	50	Not clearly different from zero
Mean daily minimum	0.09 C (-0.04 to 0.22) per decade	0.2 F (-0.1 to 0.4) per decade	1963 to 2016	50	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 2026

Yearly extremes at Cassoday 2SE: 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	38.3 C (100.9 F)	60
Coldest night (TNn)	-31.7 C (-25.1 F)	2011	-21.7 C (-7.1 F)	60
Wettest day (Rx1day)	208.3 mm (8.2 in)	1979	66.0 mm (2.6 in)	66
Wettest five days (Rx5day)	306.7 mm (12.1 in)	1979	105.4 mm (4.1 in)	66
Longest dry spell (CDD)	62 days	1989	30 days	66

Hottest day (TXx)

The hottest day of the year at Cassoday 2SE, 1948 to 2026. The record is 43.3 C (109.9 F) in 1980, marked on the chart; the median year is 38.3 C (100.9 F).

Hottest day (TXx) at Cassoday 2SE by year
Year	Hottest day (TXx)
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1962	40.6 C (105.1 F)
1963	39.4 C (102.9 F)
1964	41.7 C (107.1 F)
1965	37.8 C (100.0 F)
1966	40.0 C (104.0 F)
1967	36.1 C (97.0 F)
1968	37.2 C (99.0 F)
1969	39.4 C (102.9 F)
1970	41.1 C (106.0 F)
1971	38.9 C (102.0 F)
1972	37.8 C (100.0 F)
1973	39.4 C (102.9 F)
1974	41.1 C (106.0 F)
1975	38.9 C (102.0 F)
1976	39.4 C (102.9 F)
1977	39.4 C (102.9 F)
1978	42.2 C (108.0 F)
1979	37.2 C (99.0 F)
1980	43.3 C (109.9 F)
1981	38.3 C (100.9 F)
1982	38.9 C (102.0 F)
1983	41.1 C (106.0 F)
1984	42.2 C (108.0 F)
1985	38.9 C (102.0 F)
1986	41.1 C (106.0 F)
1987	38.3 C (100.9 F)
1988	37.8 C (100.0 F)
1989	36.1 C (97.0 F)
1990	39.4 C (102.9 F)
1991	38.3 C (100.9 F)
1992	35.6 C (96.1 F)
1993	37.2 C (99.0 F)
1994	38.9 C (102.0 F)
1995	37.2 C (99.0 F)
1996	37.8 C (100.0 F)
1997	35.6 C (96.1 F)
1998	38.3 C (100.9 F)
1999	38.3 C (100.9 F)
2000	41.1 C (106.0 F)
2001	40.0 C (104.0 F)
2002	38.3 C (100.9 F)
2003	38.9 C (102.0 F)
2004	36.7 C (98.1 F)
2005	38.3 C (100.9 F)
2006	41.1 C (106.0 F)
2007	37.8 C (100.0 F)
2008	37.8 C (100.0 F)
2009	36.1 C (97.0 F)
2010	39.4 C (102.9 F)
2011	42.8 C (109.0 F)
2012	41.7 C (107.1 F)
2013	37.2 C (99.0 F)
2014	38.3 C (100.9 F)
2015	36.7 C (98.1 F)
2016	37.8 C (100.0 F)
2017	40.6 C (105.1 F)
2019	36.7 C (98.1 F)
2020	35.0 C (95.0 F)
2021	36.7 C (98.1 F)
2022	33.3 C (91.9 F)
2025	n/a
2026	n/a

Coldest night (TNn)

The coldest night of the year at Cassoday 2SE, 1948 to 2026. The record is -31.7 C (-25.1 F) in 2011, marked on the chart; the median year is -21.7 C (-7.1 F).

Coldest night (TNn) at Cassoday 2SE by year
Year	Coldest night (TNn)
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1962	-23.9 C (-11.0 F)
1963	-25.0 C (-13.0 F)
1964	-23.3 C (-9.9 F)
1965	-20.6 C (-5.1 F)
1966	-22.2 C (-8.0 F)
1967	-20.0 C (-4.0 F)
1968	-24.4 C (-11.9 F)
1969	-18.9 C (-2.0 F)
1970	-20.6 C (-5.1 F)
1971	-25.6 C (-14.1 F)
1972	-23.3 C (-9.9 F)
1973	-25.0 C (-13.0 F)
1974	-25.6 C (-14.1 F)
1975	-20.0 C (-4.0 F)
1976	-22.8 C (-9.0 F)
1977	-23.3 C (-9.9 F)
1978	-23.3 C (-9.9 F)
1979	-26.7 C (-16.1 F)
1980	-23.3 C (-9.9 F)
1981	-22.2 C (-8.0 F)
1982	-27.8 C (-18.0 F)
1983	-27.8 C (-18.0 F)
1984	-23.3 C (-9.9 F)
1985	-28.9 C (-20.0 F)
1986	-17.8 C (0.0 F)
1987	-17.2 C (1.0 F)
1988	-22.8 C (-9.0 F)
1989	-30.0 C (-22.0 F)
1990	-24.4 C (-11.9 F)
1991	-20.6 C (-5.1 F)
1992	-15.0 C (5.0 F)
1993	-20.0 C (-4.0 F)
1994	-18.9 C (-2.0 F)
1995	-18.9 C (-2.0 F)
1996	-23.3 C (-9.9 F)
1997	-21.7 C (-7.1 F)
1998	-19.4 C (-2.9 F)
1999	-16.7 C (1.9 F)
2000	-20.0 C (-4.0 F)
2001	-19.4 C (-2.9 F)
2002	-18.9 C (-2.0 F)
2003	-21.7 C (-7.1 F)
2004	-19.4 C (-2.9 F)
2005	-22.8 C (-9.0 F)
2006	-16.7 C (1.9 F)
2007	-17.2 C (1.0 F)
2008	-17.2 C (1.0 F)
2009	-16.7 C (1.9 F)
2010	-25.0 C (-13.0 F)
2011	-31.7 C (-25.1 F)
2012	-16.7 C (1.9 F)
2013	-18.3 C (-0.9 F)
2014	-26.1 C (-15.0 F)
2015	-19.4 C (-2.9 F)
2016	-23.9 C (-11.0 F)
2017	-16.1 C (3.0 F)
2019	-16.1 C (3.0 F)
2020	-18.3 C (-0.9 F)
2021	-28.3 C (-18.9 F)
2022	-20.0 C (-4.0 F)
2025	n/a
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at Cassoday 2SE, 1948 to 2026. The record is 208.3 mm (8.2 in) in 1979, marked on the chart; the median year is 66.0 mm (2.6 in).

Wettest day (Rx1day) at Cassoday 2SE by year
Year	Wettest day (Rx1day)
1948	45.7 mm (1.8 in)
1949	47.5 mm (1.9 in)
1950	71.1 mm (2.8 in)
1951	50.0 mm (2.0 in)
1962	47.0 mm (1.9 in)
1963	44.7 mm (1.8 in)
1964	87.6 mm (3.4 in)
1965	167.9 mm (6.6 in)
1966	94.0 mm (3.7 in)
1967	80.0 mm (3.1 in)
1968	70.9 mm (2.8 in)
1969	50.5 mm (2.0 in)
1970	92.7 mm (3.6 in)
1971	65.3 mm (2.6 in)
1972	44.5 mm (1.8 in)
1973	97.8 mm (3.9 in)
1974	48.5 mm (1.9 in)
1975	58.4 mm (2.3 in)
1976	86.4 mm (3.4 in)
1977	71.1 mm (2.8 in)
1978	58.4 mm (2.3 in)
1979	208.3 mm (8.2 in)
1980	49.3 mm (1.9 in)
1981	68.6 mm (2.7 in)
1982	63.5 mm (2.5 in)
1983	54.6 mm (2.1 in)
1984	50.0 mm (2.0 in)
1985	66.0 mm (2.6 in)
1986	113.0 mm (4.4 in)
1987	44.2 mm (1.7 in)
1988	44.2 mm (1.7 in)
1989	89.9 mm (3.5 in)
1990	50.8 mm (2.0 in)
1991	47.2 mm (1.9 in)
1992	57.2 mm (2.3 in)
1993	38.6 mm (1.5 in)
1994	57.7 mm (2.3 in)
1995	83.8 mm (3.3 in)
1996	67.3 mm (2.6 in)
1997	66.0 mm (2.6 in)
1998	128.3 mm (5.1 in)
1999	72.4 mm (2.9 in)
2000	57.2 mm (2.3 in)
2001	105.2 mm (4.1 in)
2002	48.3 mm (1.9 in)
2003	120.1 mm (4.7 in)
2004	59.9 mm (2.4 in)
2005	135.9 mm (5.4 in)
2006	37.6 mm (1.5 in)
2007	55.9 mm (2.2 in)
2008	154.9 mm (6.1 in)
2009	109.5 mm (4.3 in)
2010	61.0 mm (2.4 in)
2011	49.8 mm (2.0 in)
2012	54.6 mm (2.1 in)
2013	70.6 mm (2.8 in)
2014	91.4 mm (3.6 in)
2015	66.8 mm (2.6 in)
2016	64.8 mm (2.6 in)
2017	76.2 mm (3.0 in)
2019	118.4 mm (4.7 in)
2020	78.0 mm (3.1 in)
2021	98.3 mm (3.9 in)
2022	91.9 mm (3.6 in)
2025	78.2 mm (3.1 in)
2026	50.5 mm (2.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Cassoday 2SE, 1948 to 2026. The record is 306.7 mm (12.1 in) in 1979, marked on the chart; the median year is 105.4 mm (4.1 in).

Wettest five days (Rx5day) at Cassoday 2SE by year
Year	Wettest five days (Rx5day)
1948	61.2 mm (2.4 in)
1949	60.2 mm (2.4 in)
1950	107.0 mm (4.2 in)
1951	112.8 mm (4.4 in)
1962	85.6 mm (3.4 in)
1963	57.4 mm (2.3 in)
1964	122.4 mm (4.8 in)
1965	296.5 mm (11.7 in)
1966	94.5 mm (3.7 in)
1967	103.7 mm (4.1 in)
1968	189.8 mm (7.5 in)
1969	80.3 mm (3.2 in)
1970	117.6 mm (4.6 in)
1971	82.4 mm (3.2 in)
1972	67.9 mm (2.7 in)
1973	179.5 mm (7.1 in)
1974	84.8 mm (3.3 in)
1975	70.1 mm (2.8 in)
1976	98.1 mm (3.9 in)
1977	115.8 mm (4.6 in)
1978	70.8 mm (2.8 in)
1979	306.7 mm (12.1 in)
1980	71.4 mm (2.8 in)
1981	90.9 mm (3.6 in)
1982	74.6 mm (2.9 in)
1983	113.0 mm (4.4 in)
1984	84.1 mm (3.3 in)
1985	99.6 mm (3.9 in)
1986	123.4 mm (4.9 in)
1987	93.7 mm (3.7 in)
1988	92.0 mm (3.6 in)
1989	163.2 mm (6.4 in)
1990	74.2 mm (2.9 in)
1991	78.5 mm (3.1 in)
1992	134.9 mm (5.3 in)
1993	112.5 mm (4.4 in)
1994	113.4 mm (4.5 in)
1995	122.2 mm (4.8 in)
1996	91.9 mm (3.6 in)
1997	74.4 mm (2.9 in)
1998	209.1 mm (8.2 in)
1999	113.1 mm (4.5 in)
2000	76.5 mm (3.0 in)
2001	116.4 mm (4.6 in)
2002	92.0 mm (3.6 in)
2003	164.4 mm (6.5 in)
2004	110.1 mm (4.3 in)
2005	186.5 mm (7.3 in)
2006	50.6 mm (2.0 in)
2007	112.1 mm (4.4 in)
2008	163.8 mm (6.4 in)
2009	125.5 mm (4.9 in)
2010	114.1 mm (4.5 in)
2011	62.5 mm (2.5 in)
2012	74.4 mm (2.9 in)
2013	140.7 mm (5.5 in)
2014	122.4 mm (4.8 in)
2015	93.9 mm (3.7 in)
2016	165.4 mm (6.5 in)
2017	119.1 mm (4.7 in)
2019	189.3 mm (7.5 in)
2020	91.8 mm (3.6 in)
2021	129.3 mm (5.1 in)
2022	129.7 mm (5.1 in)
2025	84.6 mm (3.3 in)
2026	52.3 mm (2.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Cassoday 2SE, 1948 to 2026. The record is 62 days in 1989, marked on the chart; the median year is 30 days.

Longest dry spell (CDD) at Cassoday 2SE by year
Year	Longest dry spell (CDD)
1948	22 days
1949	26 days
1950	58 days
1951	20 days
1962	22 days
1963	50 days
1964	30 days
1965	23 days
1966	39 days
1967	28 days
1968	61 days
1969	36 days
1970	47 days
1971	37 days
1972	37 days
1973	22 days
1974	32 days
1975	31 days
1976	35 days
1977	30 days
1978	31 days
1979	42 days
1980	33 days
1981	31 days
1982	32 days
1983	26 days
1984	24 days
1985	24 days
1986	33 days
1987	18 days
1988	26 days
1989	62 days
1990	37 days
1991	49 days
1992	20 days
1993	23 days
1994	41 days
1995	43 days
1996	24 days
1997	25 days
1998	19 days
1999	30 days
2000	39 days
2001	32 days
2002	28 days
2003	28 days
2004	26 days
2005	24 days
2006	33 days
2007	32 days
2008	27 days
2009	40 days
2010	35 days
2011	19 days
2012	33 days
2013	24 days
2014	26 days
2015	26 days
2016	24 days
2017	34 days
2019	30 days
2020	21 days
2021	39 days
2022	24 days
2025	32 days
2026	21 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

50 years with a frost

Across 50 years with a frost, the median last spring frost at Cassoday 2SE falls on 16 April and the median first autumn frost on 14 October, which leaves a median of 181 days between them.

Fitted over all years, the growing season changes by +4.8 days per decade at this station.

Frost dates and growing season at Cassoday 2SE
Measure	Median, all years	Earliest period	Recent period (1984 to 2016)	Recent against earliest	Fitted trend
Last spring frost	16 April	n/a	14 April	n/a	-3.1 days per decade
First autumn frost	14 October	n/a	14 October	n/a	+1.7 days per decade
Growing days	181 days	n/a	186 days	n/a	+4.8 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 2021

A day with at least 66.1 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 225.2 mm (8.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Cassoday 2SE: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	66.1 mm (2.6 in)
5 years	93.9 mm (3.7 in)
10 years	117.0 mm (4.6 in)
25 years	153.3 mm (6.0 in)
50 years	186.3 mm (7.3 in)
100 years	225.2 mm (8.9 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 1949 to 2021.

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: 208.3 mm (8.2 in) in 1979; 167.9 mm (6.6 in) in 1965; 154.9 mm (6.1 in) in 2008.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Cassoday 2SE, 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 Cassoday 2SE, 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 Cassoday 2SE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Cassoday 2SE 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).